JOHN DEERE 4520 TRACTOR Service Repair Manual Instant Download

1
4520
Tractors
TECHNICAL MANUAL 4520 Tractors
TM1007 (01FEB75)
English
TM1007 (01FEB75)
L?THO ?N U.S.A. (REV?SED) ENGL?SH
2
1 4520 TRACTOR TECHNICAL MANUAL TM-1007
(FEB-75) POWER TRAIN Clutches for Syncro-Range
Transmission and PTO
CONTENTS SECTION10 - GENERAL Group
S Specifications Group 10 - Predelivery,
Delivery, and Afte r-Sale Se rviees
SECTION50 Group 5
Group 10 Synero- Range Transmission
Group 15 Tune-Up
Group 15 - Engine Disconnect Clutch
Group 20 Lubrication
Group 20 - Power Shift Transmission Group 25 -
Differential
Group 25 - Separation
Group 30 - Final Drive
SE CTION 20 Group 5
ENGINE General Information, Diagnosis, and
Tests Cylinder Head, Valve Train, and
Camshaft Cylinder Block, Liners, Pistons, and
Rods Crankshaft, Main Bearings, and Flywheel
Lubrication System Cooling System
Group 35 - Sync ro- Range PTO
Group 40 - Power Shift PTO Group 45 - Power
Front Wheel Drive
Group 10 -
SECTION 60 STEERING AND BRAKES Group 5 - General
Information SECTION 70 - HYDRAULIC SYSTEM
Group 15 -
Group 20 -
Group S - General Information, Diagnosis, and
Tests Group 10 - Main Reservoir, Filters, Valves,
Oil Cooler, and Oil Reservoir Group 15 -
Hydraulic Pumps
Group 25 Group 30 -
SECTION 30 - FUEL SYSTEM Group S - Diagnosing
Malfunctions Group 10 - Fuel Injection System
Group 15 - Air Intake System Group 20 - Speed
Control Linkage
Group 20 Power Steering Group 25 - Power
Brakes Group 30 - Roekshaft, 3- Point Hitch,
and Tuik- Coupler Group 35 - Selective Control
Valve, Break- away Couplers, and Remote Cyl-
inders
SE CTION 40 - ELE C TRICAL SYSTEM Group S Informat
ion and Wiring Diagrams Group 10 - Charging
Circuit Group 15 - Starting C ireuit Group 20 -
Lighting and Accessory Cireuits
SECTION 80 - Group S - Group 10 -
MISCELLANEOUS Conventional Front Axle Power Front
Wheel Drive Axle
M oline, Z1Iinois Alt rights reserved
3
Tractors - 4520 TM-1007 Feb-75)
INTRODUCTION
This technical manual is Jor the 4520 Traetor. It
contains procedures and specifications which an
individual cannot be expected to remember.
You will notice that there is little explanation
about theory oJ operation in this manual unless
the theory is peculiar only to the component in
this machine. Basic theory of operation and gen-
eral information about the systems or compon-
ents of the tractor will be found in the John
Deere ' Fundamentals oJ Service' ' manuals. Some
components such as the fuel injection pump,
starter, alternator, remote hydraulic cyl-
inders, and selective control valves are identi-
fied by model numbers. The engine is identified
by a type and serial number found on a plate at
the right side of the engine. The tractor chassis
type and serial number is on a plate at the rear
of the tractor. When ordering replacement parts,
be sure to use all of the digits in the model
number or type-and-serial number.
The table of contents at the front of the man-
ual lists the seetions in the manual and their
groups in each section.
A table of contents on the first page of each
section lists the groups in the section and the
page number of the major subjects found in each
group.
Coverage for each component usually includes
general information, diagnosis and test, removal,
repair, adjustments, installation,
specifications, and special tools. For your
convenience, the specifications and speci at
tools are always listed at the end of each group.
This technical manual was planned and written for
youa journeyman mechanic. Keep this man- ual in
the shop where it is readily accessible and refer
to it whenever in doubt about correct main-
tenance procedures.
Use the lubrication chart in the general section
to determine what type and amount of lubricant to
use after servicing a component or system.
Use the tune-up chart in the general section as a
check list in tuning up a machine. Speci-
fications are included in the chart and reference
s are made to other sections and groups for
detailed instructions.
Using the technical manual as a guide for your
service problems will reduce error and costly
delay. It will also assure you the best in
finished service work.
4
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Tractors - 4520 TM- 1007 (Mar-71)
General 10 Specifications 5- l
Section 10 GENERAL
CONTE NTS OF THIS SE CTION Po ge
ge
GROUP 5 - SPE CIFI CATIONS
GROU P 20 - LUBRI CATION (Cont. )
General Tractor Specifications . 5-1
Greases ............. 20- 1
Storing Lubricants . . GROUP 25-
SEPARATION Removing Roll-Gard Cab Installing
Roll-Gard Cab Separating Engine Jrom
Clutch Housing Separating Clutch Housing from
Power ShiJt Transmission Separating Clutch
Housing Jrom Synero-Range transmission .
20-2
GROUP 10 - PREDELIVERY, DELIVERY, AND AFTER-SALE
SERVICES
10- 1
Predelive ry Services Delivery Services .
After-Sale Services GROUP 15 - TUNE
-UP Preliminary Engine Testing
25-1 25-2
10-3 10-4
25-2
15-1 15-1 15-2 15-3
25-4
Engine Tune -Up . Engine Final Testing ...
Tractor Tune -Up ..
25-5
..
Removing Engine ....... 25-7
GROUP20- LUBRICATION Lubrication Chart .........
20-1 Engine Lubricating Oils ...... 20-2
Transmission-Hydraulic Oil ..... 20-2
Separating Engine mom Front End 25-8
Removing Final Drive Assembly . . 25-9 Torques
Jor Hardware ...... 25-10 Special Tools
.......... 25-10
Group 5 GENERAL TRACTOR SPECIFICATIONS
HORSE POWER Sy ncro-Range Power Shift
. ENGINE
FUE L SYSTEM Type . Filters
123. 39 122.36
...... Direct injection Two-stage with
replaceable impregnated paper elements.
Type ... 6-cylinder, in-line,valve-in-head, Injec
tion pump type ..... Inlet metering,
die sel, turbocharged 4- 1/4 in. x 4-3/4
in. ..... 404 cu. in. ...... 16. 4 to 1 ....
1-5-3-6-2-4 ... Intake-0. 018 in,
distributing type Air cleaner .... 8-in.
d,iameter dry type COOLING SYSTEM Type
.. Pressurized with centrifugal pump Temperature
control ...... Heavy-duty thermostat
Bore and stroke . Displacement .. Compression
ratio Firing order ... Valve clearance .
Exhaust-0. 022 in.
CAPACITIES
Injection pump timing
........ TDFuelCtank
.......... 50 U.S. gals.
Engine Speeds
Cooling system ....... 28 U.S. qts.
Working range .... 1500 to 2200 rpm
Crankcase (with filter change) . 16 U.S. qts.
Transmission-hydraulic system (add 4-1/2 gals.
to capacity if equipped with Power Front Wheel
Drive) Syncro-Range Transmission . 18 U.S.
gals. Power Shift Transmission . . 16 U.S.
gals. SNNCRO-RANGE TRANSMISSION Type ....
Syncro-Range, constant mesh
Maximum transport speed . . 2500 rpm Engine
speeds Slow idle ........... 800 rpm 1900 rpm
load .......2150 rpm idle 2200 rpm load
.......2400 rpm idle 2500 rpm load .......2650
rpm idle
LUBRICATION SYSTEM Full pressurized
with lull-flow micronic oil
filter, water cooled oil cooler, and bypass
valves for filter and cooler. Maximum observed
hp. meacured at the PTO at 2200 engine rpm
(official test)
Clutch ... Heavy-duty, 14-3/4 in. plate,
fOot operated
Gear selections . . 8 forward and 2 reverse
Shifting
4 stations, synchronized shifting within stations
6
1 0 General 5-2 Specifications
Tractors 4520 TM-1007 (Mar-71)
POWER SHIFT TRANSMISSION
REAR WHEEL TREAD 20. 8-38 tire, regular axle 63
to 107- 1/2 in. GROUND SPEEDS IN MILES PER HOUR
(2200 engine rpm and with 20. 838 rear tires)
Type
Planetary gears, hydraulically actuated wet disk
clutches
and brakes
Gear selections . . 8 forward and 4 reverse
Shifting
Hydraulic, power shifting con- trolled by speed
selector
Syncro - Range 2.0
Power Shif 1.7
Geor 1st ....
POWE R TAKE OFF Type .... Independent PTO with
mid and rear power take-off controlled by
handoperated clutch lever Clutch
2nd. . . . 3.1 2.5
3rd. . . . 4.1 yg
4th .... 5.3 5.0
5th .... 6.5
6th .... 7th .... 11.2 g 10.9
8th .... 18.3 18.5
1st reverse 4.0 2.1
2nd reverse 6.4 3.0
3rd reverse 4.7
4th reverse 6.3
Synero-Range .
One dry-disk, hydrau- lically actuated Multiple
disk, wet clutch
Power Shift ...
hydraulically actuated
Speed (1900 engine rpm) ......1000 rpm PTO ahead
of drawbar hitch point . . 16 in. HYDRAULIC
SYSTEM Type . . Closed center, constant
pressure.
POWER FRONT WHEEL DRIVE
Type ...
Hydraulic motor driven with plan- etary gear
reduction in wheel hub, uses pressure oil from
Includes power steering, power brakes,
implement control, and transmission and
differential lu- brication. Standby pressure
........ 2250 psi
hydraulic system . . Low (series connected)
and high
Torque
(parallel connected)
Controls . . Solenoid operated control valves,
BRAKES
Hydraulically power actuated, disk-type
ope.rating in oil Provision for manual opera-
tion with brake accumulator to supply oil. Full
power, hydrostatic type. Provision for manual
operation.
synchronized with transmission eontrols Planetary
disconnect . Hydraulic wet brake on ring gear
releases when drive is disengaged DIMENSIONS Whee
lbase (Subtract 1 inch for tractors equipped with
Power Front Wheel Drive) ........ 106-1/4
in. Over-all length ........ 170-3/4 in. Over-all
height .......... 106 in. Height to steering
wheel ....... 87 in. Over-all width .........
95-7/8 in. Turning radius Without Power Front
Wheel Drive (minimum tread and brakes applied) .
. . . . . . . . . 151 in. Power Front Wheel Drive
(with drive engaged in High Torque, brakes
applied and minimum wheel tread) .......... 137
in. SHIPPING WEIGHT (With equipment for average
field service, less fuel and ballast) 13,030
lbs. Subtract 50 lbs. if equipped with Syncro
Range transmission. Add 575 lbs. if equipped
with Roll-Gard. Add 1,000 lbs. for Power Front
Wheel Drive and 1,100 lbs. for Roll-Gard
Cab. /Spect/tcotions and desigzt subject to chose
without notice.)
STEERING
E LE CTRICAL SYSTEM Type ...... 12-volt,
negative grounded Batteries ....Two, 6-volt,
75-plate 172- ampere-hour, 3 EH type, connected
in series Alternator ...... 12-volt, 55amp,
with integral transistorized regulator Capacity
available at 1900 engine rpm Lights off
operation ...... 40 amps Lights on operation (6
working lights) ............ 23 amps
FRONT TIRES
10.00-16, 6-ply 14.9-24, 6-ply
REARTIRES FRONT WHEEL TREAD
20. 838, 10ply
10.00-16 tire . .
57-1/2 to 83-1/4 in. . . 72 to 88 in.
14.9-24 tire .....
Additional tire sizes available.
7
T ractors - 4520 TM-1007 (Feb-75)
General 1 0 Predelivery, Delivery, and After
-Sale Services 10- l
Group 10 PREDELIVERY, DELIVERY, AND AFTER-SALE
SERVICES PREDELIVERY SERVICE
Because of the shipping factors involved, plus
extra finishing touches that are neeessary to
pro- mote customer satisfaction, proper
predelivery service is of prime importance to the
dealer.
After completing the factory-recommended dealer
checks and services listed on the prede- livery
tag, remove the tag from the tractor and file it
with the shop order for the job. The tag will
certify that the tractor has received the
proper predelivery service when that portion of
the customer' s John Deere Delivery Receipt is
completed.
A tag pointing out the factory-recommended
procedure for predelivery service is attached to
each new tractor before it leaves the factory.
NOTE A Caplug is placed in the muffles outlet to
pre cent tuzbochazgez rotation during transit.
Remove Caplug before unloading tractor. Reins
tall Caplug be fore transposting the tractor to
the customez. TEMPORARY TRACTOR STORAGE
Serv i c e Spec i f i coti on s R e Ie re n ce
Check radiator for coolant loss and antifree ze protection ....... Remove and store battery electrolyte Reduce shipping pressure of tire s . Cover tractor and tires for protec- tion and ele anliness. . . . . . . l- 1/2 inches above baffle. Store at room temperature. ....... . . ..,... .. , .... , ....... Operator's manual .. .. ...
BEFORE DEL IVE R ING TR ACTOR
E leetrieal 3ystem . . ... ..... .... . . ..... . ................
Install electrolyte and charge batteries ......... . . ... ..... .... . . ..... . ................ FOS- 20 Manual
Stamp date code on battery .... . . ... ..... .... . . ..... . ................ FOS-20 Manual
Connect alternator. Do not attempt to polarize. Remove resistor if present . . . . . . . . . . . . . . . ... ..... .... . . ..... . ................ Section 40, Group 10
Connect Power Front Wheel Drive wiring harness at connector near control valve s ... . . ... ..... .... . . ..... . ................ Section 40, Group 5
Install light switch knob . . . . ... ..... .... . . ..... . ................
Clean terminals and connect battery czbles . . ... ..... .... . . ..... . ................ Section 40, Group 5
8
Tractors 4520 TM-1007 (Feb-75)

1. General
2. 02 Predelivery, Delivery, and After -Sale
   Service s

BEFORE DEL IVERING TRACTOR Continued
Se rv i ce Spec f i c at i on s Re fe ren qe
Cooling System Inspect radiator for coolant loss . . Check antifre eze protection ... Tires and Wheels Adjust pressure of tires . . . Check front wheel hub bolts, rear wheel rim clamp nuts, and rear wheel retainer cap screws for tightness ....... .. Lubrication Check crankcase oil leve1 .. .. Check transmission-hydraulic sys- tem oil level , . , . . , Lubricate grease fittings . . . . Engine Check air cleaner Fill fuel tank and start engine . . Check operation of starter, alterna- tor, lights, flasher, gauges, and indicator lights .... Check engine timing Check engine speeds Operation Check transmission clutch free travel (Sy ncro-Range transmission) Check engine disconnect clutch (Power Shift transmission) Shift transmission through all speeds. . Check speed control linkage for free operation ............ 1- 1/ 2 inches above baffle. ... . .... Front hub bolts - 100 ft-lbs Rear hub bolts - 300 ft-lbs Rim clamp nuts - 170 ft-lbs To upper marks on dipstick. To top of SAFE' range on dipstick. John Deere Hy-Gard or Type 303 Special-Purpose Oi1. SAE multipurpose -type grease. Capacity 50 U. S. gallons TDC 800 rpm, slow idle speed 2650 rpm idle speed, 2500 max. transport speed Approximately l1/ 2-inch lree travel (at least 3/4 in.). No tendency for tractor to creep with disconnect clutch disengaged. . . . . . . . . ...... Operator's manual ...... Operator's manual Operator's manual Operator 's manual Operator's manual Operator's manual Operator's manual Section 30, Group 15. Section 30, Group 15 Operator's manual Section 50, Group 15 Operator's manual Section 30, Group 20
9
I'ractors - 4520 I'M-100Y (Dec- 69)
General 10 Predelivery, Delivery, and
After-Sale Services 10-3
BEFORE DE L IVER ING TRACTORContinued
Serv i ce Spelt i filt ation s R efe renc e
Check Power Front Wheel Drive operation, . . . . , Check power takeoff operation . . . Check differential lock operation . . Check brakes and accumulator. Check hydraulic system operation Rockshaft, steering, and remote cylinder . . . . . . . . . . . . . Check implement hitch operation. . Check seat operation ....... General Tighten accessible nuts and cap ScreWS . . . . Clean tractor and touch up paint . . ...... . ...... 3 in. maximum trave1 for one emergency application immediately after stopping engine. ......... ... . .. . .... ... ...... ....,.,.. , ... , , , Operator's manual Operator's manual Operator's manual Operator's manual Operator 's manual Operator's manual Operator's manual ...... .. .... , ....
DELIVERY SERVICE
A thorough discussion of the operation and
service of a new tractor at the time of delivery
helps to assure complete customer satisfaction.
Proper delivery should be an important phase of a
dealer' s program. A portion of the John Deere
Delivery Receipt emphasizes the importance of
proper delivery service.
The following procedure is recommended be - fore
the serviceman and owner complete the de- livery
acknowledgments portion of the delivery receipt.
Using the tractor operator's manual as a
guide, be sure that the owner understands these
points thoroughly
Many complaints have arisen simply because the
owner was not shown how to operate and serv- ice
his new tractor properly. Enough time should be
devoted, at the customer's convenience, to
introducing the owner to his new tractor and ex-
plaining to him how to operate and service it.

• Controls and Instruments.
• How to start and stop the engine.
• The importance of the break-in period.
• How to use liquid or cast-iron ballast.
• All functions of the hydraulic system.
• Using the power takeoff.
• The importance of safety.
• The importance of lubrication and periodic
• services.

IMPORTANT lnstolI Coplug in muff ler outlet if
transporting tractor to customer. This wil I
prevent damage to the turbocharger caused by air
passing through the turbocharger and rotat- ing
it without lubr icotion when the engine is
stopped.
After explaining and demonstrating the above
features, have the owner sign the delivery re-
ceipt and give him the operator's manual.
10
Tractors - 4520 TM- 1001 (Dec-69)
1 o 1 0-
General Pr edelive ry, Delivery, and After -Sale
Services
AFTER-SALE INSPECTION The purchaser of a new John
Deere tractor is
If the recommended after-sale service in-
entitled to a free inspection within the
warranty spection is followed, the dealer can
eliminate a
period after the equipment has been run in. The
terms of this after-sale inspection are outlined
on the back of the John Deere Delivery Receipt.
needless volume of service work by preventing
minor irregularities from developing into seri-
ous problems later on. This will promote strong
dealer-customer relations and present the deal-
er an opportunity to answer questions that may
have aris en during the first few days of opera-
tion. During the inspection service, the dealer
has the further opportunity of promoting the
possible sale of other new equipment.
The purpose of this inspection is to make sure
that the customer is receiving s atisfactory
per- formance from his tractor. At the same time,
the inspection should reveal whether or not the
trac- tor is being operated, lubricated, and
serviced properly,
The following inspection program is recom- mended
within the first 100 hours of tractor op-
eration. INSPECT ION PROCEDURE
ervi c e Referen ee
Cooling System Check radiator coolant level ... Clean external surface of radiator Cheek hoses and connections Jor leafs . . . . . . . . . . . - Fuel System Remove water and foreign matter from fuel pump and filter sediment bowls .......... ... Bleed fuel system . . . . . . . . Tighten loose connections and check entire system for leaks, correct if necessary . ... . .. Cheek air cleaner cup, element, and unloading valve. Clean element if necessary ... Electrical System Check specific gravity of battery(s). Check level of battery electrolyte Cheek belt tension ....... 1-1/2 inches above baffle. . .. .... . .. . ...... . . - - -- -- Al charge - 1. 260 at 80 F. To bottom of filler neck in each cell. l-inch deflection with a 25- pound force. . . . . . . . . Operator's manual Operator's manual - -- - - - - - Operator's manual Operator's manual Operator's manual Operator's manual
11
Tractors - 4520 TM-1007 (Feb-75)
General l0 Predelivery, Delivery, and After-
Sale Services 10-5
INSPECT ION PROCE DURE5Continued
Spec ifi c nt i n us Refe rencc
Start engine and check action of starter, lights, and indicator lamps. . . . . . Lubrication Check crankcase oil level .. . Check transmi ssion-hydraulic system oil l,eve1 ........ Engine Check valve clearance ..... Check engine speed under load, fuel consumption, and horsepower ... Clutches and Differential Lock Check transmission clutch free travel (Syncro-Range transmission) Check engine disconnect clutch (Power Shift transmission) ... Shilttransmissionthrough aM SpeedS . . . . . . , . . . Check Power Front Wheel Drive operation Check PTO clutch and brake opera- tion .. ..... Check differential lock operation . To tippe r marks on dipstick. In ' SAFE' range on dipstick. Use John Deere Hy-Gard or Type 303 Special-Purpose Oil. Intake - 0, 018 inch Exhaust - 0.028 inch Jpecificati on. Approximately 1-1/2 inch free travel. No tendency for tractor to creep with disconnect clutch disengaged. . . . . . . ........ .. . Operator's manual Operator s manual Operator's manual Operator's manual Group l5 of this Section. Operator's manual Section 50, Group 15 Operator's manual Operator's manual Section 50, Group 45 Section 50, Groups 35 40 Operator's manual
12
1 0 General 10-6 Predelive ry, Delivery, and
After -Sale Service s
Tractors - 4520 TM-1007 (Feb-75)
INS PE CT lOFi PR OCEDURES - Continued
Ser yi c e Speci fi c ation Reference
Hydraulic System Check rockshaft and remote cylin- der operation , . , 3-point hitch negative stop adjust- me,nt .. .. Check power steering ....... Check brake s and accumulator ... Nuts and Cap Screws Tighten accessible nuts and cap screws that seem to require ad- justment.. ... , ... , , ...... l/8th turn back out after con tacting transmission case. Smooth, easy operation. 3 in. maximum travel for one emergency application immediately alter stopping engine. Section 70, Group 30 Section 70, Group 30 Section 70, Group 0 Operator's manual
REC OVMEFID ED TORQU E IN FOOT -POMNDS
Bolt D io meter Pa i n Head Three Rod io I Do shes Six Rodi of Dashes
1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 6 13 23 35 55 75 105 185 160 250 10 20 35 55 85 130 1Y0 300 445 6Y0 14 30 50 80 120 175 240 425 685 1030
The lypee of bolts and cap crews areiden- tified
by head markings as follows.- Pfoin blend.-
regular machine bolts and cap screws. 3-Dash
Head. tempered ste e1 high-strength bolts and
cap screws. 6-Das ñ Head. t e mp e r e d steel
elm high- strength bolts and cap screws.
13
Tractors - 4520 TM-1007 (Feb-75)
General 1 0 Tune-Up I 5- I
Group 15 TUNE-UP
Before tuning up a tractor, determine whether a
tune-up will restore operating efficiency. When
there is doubt, the following preliminary tests
will help to determine if the engine can be tuned
up. If the condition is satisfactory, proceed
with the tune-up. Choose from the following
proce- dures only those neeess ary to restore the
unit.
PRE LIM INARY ENGINE TESTING
Opero I ion Spec if i c ot ion Section- Group Reference
Dynamometer Test (at 2200 engine rpm full load) . Compare with previous recorded output compare with output after tune-up. 385-410 psi at 215-245 rpm Normal blowby - 120- 150 cu. ft./hr. Excessive blowby - 200 cu. ft./hr. No air bubbles or oil film in radiator.
Compare with previous recorded output compare with output after tune-up. 385-410 psi at 215-245 rpm Normal blowby - 120- 150 cu. ft./hr. Excessive blowby - 200 cu. ft./hr. No air bubbles or oil film in radiator. FOS - 30 Manual, Chapter 12
Compression Test Compare with previous recorded output compare with output after tune-up. 385-410 psi at 215-245 rpm Normal blowby - 120- 150 cu. ft./hr. Excessive blowby - 200 cu. ft./hr. No air bubbles or oil film in radiator. FOS - 30 Manual, Chapter 12
Vapor Flow Test (average engine condition and without turbo- charger blowby) . Compare with previous recorded output compare with output after tune-up. 385-410 psi at 215-245 rpm Normal blowby - 120- 150 cu. ft./hr. Excessive blowby - 200 cu. ft./hr. No air bubbles or oil film in radiator. FOS - 30 Manual, Chapter 12
Engine Coolant Check Test . Compare with previous recorded output compare with output after tune-up. 385-410 psi at 215-245 rpm Normal blowby - 120- 150 cu. ft./hr. Excessive blowby - 200 cu. ft./hr. No air bubbles or oil film in radiator. FO-30 MSanual, Chapter 12
ENGINE TUNE -UP
Operoti on Spec ifi c oti on Secti on -Grou p Reference
Air Intake System Service air cleaner and check system for leaks . . . . .. ........ Check system for restrictions using water manometer (inches of water) . . . . . . ... , , . , . . Normal reading (with clean filter elements) . . . . . . 8 in. at 2200 rpm Maximum permitted reading 25 in. at 2200 rpm Check restriction indicator light operation ....... 24- 26 in. at 2200 rpm Exhaust System Check system for leaks Check muffler and exhaust pipe for restrictions . . . . . . ....,... . FOS - 30 Manual, Chapter 12 FOS - 30 Manual, Chapter 12 , .. ... ....... .......... FOS - 30 Manual, Chapter 12 FOS - 30 Manual, Chapter 12
14
10 1 5-2
General Tune-Up
Tractors - 452G TM- 1007 (Feb- 75)
ENGINE TUNE-UPContinued
Operation Spec i fi c oti on be ctio n Group Referen ce
Crankcase Ventilating System FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check system for restrictions ... . . .. . FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Cooling System FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Clean grille screen, radiator FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
core, and oil cooler core , FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Clean and flush system check FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
thermostat ... . Starts to open at 173F. Fully open at FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
186F. FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check pressure cap ..... 6.25 to 7.50 psi release pressure FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Cylinder Head and Valves FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Torque cylinder head cap screws 130 It-lbs in sequence FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Set valve clearance . .... Intake - 0.018 in. Exhaust 0.028 in. FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Diesel Fuel System FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check fuel tank for water FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check fuel pump pressure Clean sediment bowls and 3-1/2to4-1/2ps FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
change filter ........ .. .. FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Service injection nozzles ... . .. . FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Injection Pump . .. . FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Injection Pump FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Service and check timing . . FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Injection pump transle r pump . FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Adjust throttle linkage ... 2650 rpm idle speed, 2500 max. FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
transport speed FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
2150 rpm idle speed, 1900 load speed FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
2400 rpm idle speed, 2200 load speed FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
800 rpm, slow idle speed FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Lubrication system FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check engine oil pressure 40 - 50 psi (1900 rpm) FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Charging Sy stem FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check battery specific gravity 1.2t0 - 1.260 FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check battery water consump- 1.2t0 - 1.260 FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check battery water consump- FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
tion and electrolyte level . . FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Clean battery, cables, and box FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check alternator belt tension . 25 lbs. at 1 in. belt deflection FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check alternator output . . 45 amps at 13 to 15 volts (1290 engine FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Check alternator regulated rpm, 3000 alternator rpm) FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
voltage ......... 14. 2 - 14.6 volts (operating) FOS - 30 Manual, Chapter 12 20-30 20-30 20-30 20-15 20-15 30-15 30- 15 30-15 30-15 30- 15 SM-2045 30-15 20-25 40- 10 40- 10 40- 10 40- 10 40- 10 40- 10
Litho in U.S.A.
15
Tractors TM- 1007
4520 (Feb-75)
General 10 Tune -Up I 5-3
ENGINE TUNE - UP - Continued
Opero lion Spec ifi cati on Secti on- Gro up Reference
Starting System Check start- safety switch operation .......... Check battery voltage when starting .......... Check starter current draw . Check operation of alternator, oil pressure, and Power Shift transmission filter re- striction indicator lights . . . Min. 9 volts (cranking) Diesel - approx. 400 amps 40- 15 40-15 40- 15 40-25
FINAL ENGINE TEST
Operafi on Sp ec ifi coti on Se cti on-G roup Reference
Dynamometer Test (at 2200 engine rpm full load) Compare with previous recorded output record for future use. FOS - 30 Manual, Chapter 12
TRACTOR TUNE-UP
0 perati on Spec ifi cat i on be ctio n-G roup Referenc e
Adjust Syncro-Range transmission 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
clutch free travel . 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50-5
Check Power ShiJt transmission 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
disconnect lever operation 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50-10
Transmission 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
Check shifting ........ Check for proper operation 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50-15
without excessive noise .... 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50- 15 20
Power Shift transmission pump 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50- 15 20
Power Shift transmission pump 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
pressure ........ Power Shift engaged element 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50-20
pre ssure ....... .. 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
Check differential lock operation . 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 50-25
Check brake pedal travel and 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
even position ...... . . 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. 70-25
Check front wheel bearing ad- 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
justment and lubrication .... 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
Check front wheel toe-in 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in.
Check tire inflation ....... 1- 1/2 in. 6 in. travel . . . .... . . .. 160 - 180 psi Max. of 15 psi less than pump 420 - 480 psi 3 in. max. for one emergency application immediately after stopping engine 35 ft-lbs. back-off to nearest hole 1/ 8 - 3/8 in. Operator's manual
16
10 General 15-4 Tune -Up
Tractors 4520 TM- 1007 (Feb-75)
TRACTOR TUNE-UPContinued
Operot i on 5pec i fi coti on Section- Group Reference
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... SM-2089
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 15 lb. force , 1/4-inch deflection 10-25
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 50-45
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 9 gpm at 1900 rpm - Syncro -Range
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 12 gpm at 1900 rpm Power Shift 70-5
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... Standby - 2200 - 2300 psi (2300
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... psi for Power Front Wheel Drive)
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... Capacity - 23 gpm (2000 psi and 1900
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... rpm) 26. 5 gpm (2000 psi and 1900
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... rpm) for Power Front Wheel Drive 70-5
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 1650 - 1700 psi at 800 rpm (approxi-
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... mately 5 gpm flow) 70-5
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 2.5 - 2.7 seeonds at 1900 rpm 10.5 to 11.5 gpm at 2000 psi and 70-30
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 1900 rpm Complete raise at 1/32-inch from 70-30
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... end of slot 70-30
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 0 of quadrant to raise (rear lever
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... edge)
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 1/8th turn back out after contacting
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... transmission case stop screw with
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... bushing set clearance . 001 . 011 in. 70-30
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 2 to 12-1/2 gpm at 1500 psi and
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 1900 rpm 70-5
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... 1900 2000 psi at 1200 rpm, 4th gear,
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... high torque , and 2 gpm flow through
Cheek operation of air condition- ing and heating systems ...... Check compressor drive belt tension ............... Cheek Power Front Wheel Drive operation. Transmission pump Main hydrauli e pump. Pressure control valve Rockshaft Lift cycle time (75 degrees rotation) Maximum oil flow ... Lever position (depth control) . Lever position (load control) . Negative stop adjustment ... Selective control valve. Power Front Wheel Drive pressure control ... jumper hose at breakaway coupler 50-45
Hydraulic system pressures, flow rates, or cycle times are for conditions specified in Sec- tion 70 (tractor at operating temperature, transmission-hydraulic oil at 140F. to 160F. proper test equipment, correct test sequence, etc.) . Hydraulic system pressures, flow rates, or cycle times are for conditions specified in Sec- tion 70 (tractor at operating temperature, transmission-hydraulic oil at 140F. to 160F. proper test equipment, correct test sequence, etc.) . Hydraulic system pressures, flow rates, or cycle times are for conditions specified in Sec- tion 70 (tractor at operating temperature, transmission-hydraulic oil at 140F. to 160F. proper test equipment, correct test sequence, etc.) .
17
Tractors - 4520 TM-1007 (Mar7l)
General 1 0 Lubrication 2()- I
Group 20 LUBRICATION GENERAL INFORMATION
Carefully written and illustrated instructions
are included in the tractor operator's manual.
Remind your customer to follow the recommen-
dations in these instructions.
For your convenience when servicing the
tractor, the following chart showing capacities
and type of lubricant for the various components
has been included. Additional lubrication infor-
mation is on page 20-2.
Component Copoc ity Type of Lubri cont Intervo I of Serv i ce
Engine Crankcase 16 U.S. quarts (includes filter) 18 U.S.ga11ons (Syncro-Range) 16 U.S. gallons (Power Shift) ... .. .. ........... See "Engine Lubricat- ing Oils on page 20-2 10 Hours - Check level 100 Hours - Change oil 200 Hours - Replace filter 200 Hours - Check level 600 Hours - Replace filter 1200 Hours - Change oil 1200 Hours - Repack bearing See Operator's Manual
Transmission and Hydrauli c System 16 U.S. quarts (includes filter) 18 U.S.ga11ons (Syncro-Range) 16 U.S. gallons (Power Shift) ... .. .. ........... John Deere Type 303 special-Purpose Oil 10 Hours - Check level 100 Hours - Change oil 200 Hours - Replace filter 200 Hours - Check level 600 Hours - Replace filter 1200 Hours - Change oil 1200 Hours - Repack bearing See Operator's Manual
Front Wheel Ber1ngs 16 U.S. quarts (includes filter) 18 U.S.ga11ons (Syncro-Range) 16 U.S. gallons (Power Shift) ... .. .. ........... Wheel Bearing Grease 10 Hours - Check level 100 Hours - Change oil 200 Hours - Replace filter 200 Hours - Check level 600 Hours - Replace filter 1200 Hours - Change oil 1200 Hours - Repack bearing See Operator's Manual
Grease Fittings 16 U.S. quarts (includes filter) 18 U.S.ga11ons (Syncro-Range) 16 U.S. gallons (Power Shift) ... .. .. ........... SAE Multipurpose Grease 10 Hours - Check level 100 Hours - Change oil 200 Hours - Replace filter 200 Hours - Check level 600 Hours - Replace filter 1200 Hours - Change oil 1200 Hours - Repack bearing See Operator's Manual
Add 4-1/2 gals. to capacit y i f equipped with
Ponce r front Wlie eI Drive.
18
1 0 General 20-2 Lubrication
Tractors 4520 TM1007 (Mar-71)
LUBRICANTS Effective use of lubricating oils
anfi greases is perhaps the most important step
towards low upkeep cost, long tractor life, and
satisfactory service. Use only lubricants
specified in this section. Apply them at
intervals and according to the instructions in
the lubrication section. ENGINE L UBR ICAT ING
OILS
éi r Temperotu re John Deere To rq - Gord Oi I Other 0 i l s Other 0 i l s
éi r Temperotu re John Deere To rq - Gord Oi I Single Vi s- os ity 0i I Mu lti - Vi s- co si ty Oi l
Above 32F. SAE 30 SAE 30 Not recom- mended.
-10F. to 32F. sAE 10W -20 SAE 10W SAE 10W -30
Below -10F. SAESW-20 SAESW SAESW-20
o
A ñW-20 oif tried be us ed to facilitate
Some increase in oif consutn9tion may be
expected when SAE âW-20 or SAE 5W oils are used.
Check oif level more frequents y.
TORQ-G4R
gine Oil
BREAKINOIL Use TorqGard SAE 10W -20 oil for the
first refill after a major engine
overhaul. TRANSMISSION-HYDRAULIC OIL
We recommend John Deere Torq-Gard engine oil for
use in the engine crankcase. Torq-Gard is
compounded specifically for use in John Deere
engines, and provides superior lubrication under
all conditions for diesel engines. NEVER PUT
ADDITIVES IN THE CRANKCASE. Torq-Gard oil was
formulated to provide all the protection your
engine needs. Additives could reduce this
protection rather than help it.
Use John Deere Type 303 Special-Purpose Oil in
the transmission hydraulic system. This
special oil may be used in all weather
conditions. Other types of oil will not give
satisfactory service and may result in eventual
damage. MULTI- PURPOSE GEAR LUBR ICANTS
If oil other than Torq-Gard is used, it must
conform to the following specifications
Series 3 (S-3), MIL-L-45199B, API Service CD
or DS (Previous API service designation) NOTE
As further assurance of qualit y use oif
fearing a statement on the container that the oil
meets car manufacturer's warrant y require- ments.
Use SAE 80 or SAE 90 MultiPurpose gear
lubricant meeting API classification GL-1 in
gear housings requiring this type of
lubricant. GREASES
Use John Deere Multi-Purpose lubricant or an
equivalent SAE multipurpose -type grease for all
grease fittings. Wheel bearing grease is
recommended for front wheel bearings. Applica-
tion of grease as instructed in the operator's
manual will provide proper lubrication and will
prevent bearing contamination. STORING LUBRICANTS
Depending on the highest expected prevailing
temperature for the fill perJod, use oil of vis-
cosity as shown in the following chart.
Using contaminated lubricants will result in a
short machine service life. Advise your customer
to handle lubricants in clean containers. Tell
him to store them in an area protected from dust,
moisture a.nd other contamination.
19
General 10 Separation 25- I
Tractors -4520 TM-1007 (Dec-69)
Group 25 SEPARATION Remove floor mats and pads,
cab floor panels, front cowl panel, and rockshaft
covers.
RE MOVING ROLL -GARD CAB
When the tractor is equipped with aRoll-Gard cab,
it may be necessary to remove the cab in order to
service tractor. Individual service re-
quirements will dictate whether the serviceman
will remove some of the cab panels or remove the
complete cab. For example, to remove the rock-
shaft housing, it is necessary only to remove the
covers over the housing. However, service of the
differential or final drives will require
complete cab removal. Use the following proce
. for complete cab removal. See Fig. 1.
Disconnect the battery ground cable.
Disconnect cab wiring harness (refer to Wm- ING
DIAGRAMS, Section 40).
On cabs equipped with a heater, drain the cool-
ing system and disconnect heater hoses from
connections on right-hand side panel inside cab.
F L0 0R PANE LS
R0 K S HA F H0 US I N COVER
ri q. I -to 11- Card C ah rloor P an els
20
1 0 General 25-2 Separation
Traetors - 4520 TM-1007 (Dec-69)
Remove cab assembly from tractor (Fig. 26). I
NSTA L LING ROLL -GARD CAB
C0 MPRE S SOR
Reverse the removal steps. Tighten the Roll-
Gard-to-axle housing bolts to specifications.
Adjust the compressor drive belt (on air condi-
tioned cabs) to specifications.
After the cab panels and extensions are in
place, seal all holes and openings with tape,
foam material, or sealant before installing floor
pads and mats. Careful sealing of holes must be
done for the pressurizer to be effective in keep-
ing out dust and dirt.
COHP RE SSO R DR I V E B E LT
C0 MPR B 0 L T
Fig. 2 C ompresor Mounting
Install floor pads and mats.
pressor (with refrigerant hoses attached) from
engine and bend hoses so that the unit can be
placed inside the cab or fastened to the cab.
Do not disconnect the refrigerant hoses unless
absolutely necessary.
SE PARAT I NG ENGINE F ROM CLUTCH HOU5 ING

• Follow all precautions regarding safety,
  cleanliness, and general meehani cal procedures.
  See the John Deere "Fundamentals of Service"
  manuals.
• CAUTION Always start engine from opera- tor's
  seat. Before s I a r I i n g engine, be sure
  tronsmiss ion is in "PARK." If tractor has a
  Power Front Wheel Drive, shut off the main hy-
  draulic pump, disconnect electr ical connector (F
  ig. 2, Group 10, Section 80), or raise both
  front wheels to prevent tractor movement if front
  drive should accidentally engage. Do not place
  jock under hose guard.
• Drain engine cooling system and remove muf- fler,
  cowl, side shields, grille screens, hood, and
  control support covers.
• Disconnect battery ground cable from leJt- hand
  battery.
• Remove right-hand step (Fig. 4).
• Dis connect hydraulic pump oil seal drain tube.
• Disconnect tachometer cable.
• Disconnect wire from oil pressure switch.
• Disconnect speed control rod from injec- tion
  pump.
• Disconnect alternator harness from main harness
  and detach alternator harness from con-
• trol support.
• Disconnect hydraulic pressure pipe.
• Loosen hose clamps on oil cooler return pipe.
• Disconnect battery cable from starter
• (Fig. 5).

CA UTION Whenever the refr igeront hoses are to
be disconnected, first discharge the sys- tem as
explained in 5M-2089, A ir Conditioning and H e
at i n g Systems, under DISCHARGING THE SYS TEM.
Follow all safety precautions Iisted in the
manual to avoid personal injury.
Remove the bolts attaching the Roll-Gard
frame to the rear axle housings.
Loosen the Jront cab adjusting screws.
ADJUST I NG S CREW
Fig. 3- Front Adju stin g Screw and Bracket
21
General 1 0 Separation 25-3
Tractors - 4520 TM-1007 (Dec-69)

1. Hemove starter circuit relay from clutch housing
   and disconnect wire to battery from re- lay.
2. Dis connect steering pipes.
3. Remove engine temperature bulb from engine.
4. D is connect ether starting aid pipe.
5. Remove left-hand step.
6. Disconnect hydraulic pump inlet pipe.

16
Fig. 6Power Front ttiee I Drive Drain Pipe
Fig. 4Separation Procedures on ligtit-Han d Side
16. Disconnect Power Front Wheel Drive drain
pipe (Fig. 6). Use JDG-2M rear stand at the
drawbar front support. Install front support
stand MDG-2C. Remove cap screws securing engine
to clutch housing and roll rear half of tractor
away. ASSEMBLY Move both halves of tr actor
together. Never use excessive force. Tighten
clutch housing-to-engine cap screws to specified
torque and remove splitting stand. Reverse the
numbered separation procedures. Fill the engine
cooling system. Connect bat- tery ground (tap
eable on battery post first). Cheek engine
crankcase and transmission oil levels. Dis
connect injection pump electrical shut-off
solenoid wire. Crank the engine with starter un-
til the engine oil pressure indicator light goes
out. Do not overheat the starter. After the indi-
cator light goes out, reconnect injection pump
shut-off solenoid wire and start the
engine. Bleed steering system (Section 70, Group
20). After checking for leaks, install tractor
sheet metal and muffler.
13
12
10
14
15
Fig 5 Separation Procedures on L eat-H and Side
22
i o General t5-4 Separation
T raetors - 4520 I'M-1007 (Dec-69)
SE PARAT ING CLU