Case IH 770 870 Tractor Operator’s Manual Instant Download (Publication No.9-2412)

1
770/870 TRACTOR Operators Manual
9-2412
2
This sym6ol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED. The message that follows IQ'e
symbol GOntaif? !" R rtantinformation about your
safety. Carefully read the message. Make sure you
fully understand thé causes of possible injury or
death. SB001

• IF THIS MACHINE IS USED BY AN EMPLOYEE, IS
  LOANED, OR IS RENTED, MA K E SUR E T HAT TH E OP
  E RATO R UNDER STA N DS TH E TWO INSTRUCTIONS
  BELOW.
• BEFORE THE OPERATOR STARTS THE ENGINE
• GIVE INSTRUCTIONS TO THE OPERATOR ON SAFE AND
  CORRECT USE OF THE MACHINE.
• MAKE SUR E THE OPERATOR READS AND UNDERSTAND S
  TH E OPERATOR'S MANUAL FOR THIS MACHINE.

• IMPROPER OPERATION OF THIS MACHINE CAN CAUSE
  INJURY OR DEATH.
• BEFORE STARTING THE ENGINE, DO THE FOLLOWING
• READ THE OPERATOR'S MANUAL.
• READ ALL SAFETY DECALS ON THE MACHINE.
• CLEAR THE AREA OF OTHER PERSONS.
• LEARN AND PRACTICE SAFE USE OF MACHINE CONTROLS
  IN A SAFE, CLEAR AREA BEFORE YOU OPERATE THIS
  MACHINE ON A JOB SITE.
• It is your responsibility lo observe pertinent
  laws and regulations and to follow manufacturer's
  instructions on machine operation and
  maintenance.
• See your Authorized Case dealer for additional
  operator's manuals, parts cat- alogs, and service
  manuals.

0 1995 Case Corporation CASE and IH are
registereo trade marks of Case Corporation
3
TO THE MURCHAflER OF A CASE TRACTOR The care you
give your Case Tractor will greatly determine the
satisfaction and service life you will obtain
from it. Use this manual as your guide. By
observing the instructions and suggestions in
this manual, your Case Tractor will serve you
well for many years. As an Authorized Case
Dealer, we stock Genuine Case Parts, which are
manufactured with the same precision and skill as
the original equipment. Our factory trained
staff is kept well informed on the best methods
of servicing Case equipment and is ready and able
to help you. Should you require additional aid or
information, contact us.
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''igure 1 'f70 Tractor With Cab
Figure 2 870 Tractor 2
6
When ordering parts from your Authorized Case
Dealer and in all contacts or correspondence
with your dealer, relative to the Tractor always
specify ttie Model, Serial, Engine and
Transmission Serial Numbers of your Tractor. The
Model and Serial Numbers are stamped on the
number plate located outside and lower left hand
side of the fire wall assembly, Figure 3. The
Engine Number is stamped on a plate fastened to
the rear right hand side of the engine block,
Figure 4. The Transmission Serial Number is
stamped on a plate and fastened to the right hand
side and to the front of the axle on the
transmission housing, Figure 5.
MO D E L A ND S I R IA L N U M BER P L AT E
_at_
ENGIN E SERI A L NUMBE R PLATE Figure 4
Figure3
The term.Right Hand" and "Left Hand whenever
used in this manual, apply to the tractor
when facing in the dir- ection the tractor will
move in forward operation. For reference, Bill
in the Serial Numbers of your tractor in the
spaces provided below.
TB ANSIISSION 5EgIAL NUMBER PLATE Figure 5
Model Designation Tractor Serial Number
Engine Serial Number Transmission Serial
Number
7
SP'ECIWICATIONS Type -------------------------
4 Cylinder, 4 Stroke Gycle, Valve-in-Head.
Piston Displacement (770 Series) -------------
267 Gubic Inches (870 Series) ------------ 336
Cubic Inches Compression Ratio -------------------
---------------- 16.5to l Cylinder Sleeves
------------------------ Removable Wet Type No
Load Governed Speed ----------------------------
2060 RPM Rated Engine Speed ----------------------
---------- 1900 RPM Engine Idling Speed
--------------------------------- 725 RPM Valve
Tappet Clearance (Exhaust) ------------- (Hot)
.020 Inch (Cold) .025 Inch (Intake) ------- (Hot
and Cold) .015 Inch Hot Settings Are Made After
The Engine Has Operated At Ther- mostat
Controlled Temperature For At Least Fifteen
Minutes. Rlaton and Connecting Roche Rings per
Piston ------------------------------------------
3 Number of Compression Rings --------------------
--------- 2 Number of Oil Rings
-------------------------------------- 1 Type
Pins --------------------------------- Full
Floating Type Type Bearing -----------------
Replaceable Precision, Steel Back, Copper-Lead A
lloy Liners. Main _at_earlnga Number of
Bearings 5 Type Bearings ----------------------
Replaceable Precision Steel Back, Copper-Lead
Alloy Liners.
8
Enplne lubricating Oyatem Oil Pressure
----------- 45 to 55 Pounds with Engine Warm
and Operating at Rated Engine Speed. Type System
------------------ Pressure and Spray
Circulation Oil Filter -------------------------
---- Full Flow Spin on Type Fuel Injection Pump
------------------- Robert Bosch, Type
PES (Multiple Plunger). Pump Timing
---------------------- 29 Degrees Before Top
Dead Center (Port Closing). Fuel Injectors Pencil
Type (Opening Pressure 2800 PSi). Fuel Transfer
Pump - ----------- Plunger Type, Integral Part
of Injection Pump. Governor -------------------
Variable Speed, Fly-Weight Centri- fugal Type
Integral Part of Injection pump. lst Stage fuel
filter --------------------- Full Flow Spin on
Type 2nd Stage fuel filter -----------------
Full Flow Spin on Type Fuel Tank Water Trap and
Drain ---- Located in Base of Fuel Tank 50 U. S.
Gallons Fuel Level Gauge ------------- Electric,
Located on Instrument Panel.
5
9
S ECIWICATIONS General Type ---------------------
------- 4 Cylinder, 4 Stroke Cycle, Valve-in-Head.
Firing Orde
Bore (770 (870 Stroke
Inches -3/8 Inches
Compression Ratio -------------------------------
-- 7.5 to 1 Piston Displacement (770 Series)
------------- 251 Cubic Inches (870 Series)
------------- 301 Cubic Inches No Load Governed
Speed -------------------------2060 RPM Rated
Engine Speed ------------------------ 1900
RPM Engine idling Speed --------------------------
------ 600 RPM Valve Tappet Clearance (Intake)
----- (Hot and Cold) .015 Inches (Exhaust)
----------- (Hot) .020 Inches (Cold) .025 Inches
Exhaust ValYe Rotators ---------------------
Positive Type Hot Settings Are Made After The
Engine Has Operated At Ther- mostat Controlled
Temperature For At least Fifteen Minutes. Rlaton
anti Wnnecting Robs Rings per distort
------------------------------------------
4 Number of Compression Rings --------------------
--------- 3 Number of Oil Rings
-------------------------------------- l Type
Pin ------------------------------- Full
Floating Type Type Bearings --------------------
Replaceable, Precision Steel Back, Copper Lead
Alloy Liners. Maln _at_earlnpa Number of Bearings
---------------------------------------- 5 Type
Bearings ------------------- Replaceable,
Precision Steel Back, Copper Lead Alloy Liners.
6
10
Engine kuIgtricatlnp Syatem Oil Pressure
---------------------------- 45 to 55 Pounds
with Engine Warm and Operating at Rated Engine
Speed. Type System --------------------- Pressure
Spray Circulation Type System -------------------
--- Pressure Spray Circulation
Oil
Gear Type
Oil Filter ---------------------------- Full
Flow, Spin on Type
Fuel Tank U.S. Gallons Carburetor (Zenith)
(w/solenoid shut-off) 1-1/4 Inch SAE
Flange Fuel Pump and Screen ---------- A.C.
Vacuum Type, Camshaft Actuated. Dlstrltautsr
Ignition
Contact Point Gap --------------------------------
- Dwell
.020 Inch 70
Spark Plugs -------------------------------
Prestolite 18 8 Plug Gap ----------------------
----------------- .025 Inches Thread
---------------------------------------------- 18
MM Shank Length ----------------------------------
---- 1/2 Inch Enplne Timing Static Timing 5
ATDC Running Timing -----------------------
Engine running at Rated Engine Speed 28 BTDC
7
11
Capacity 28 U.S. Quarts Type of System
----------- Pressurized, Thermostat
Controlled By-Pass Type Forced Circu- lation,
(Impeller Type Pump). Radiator
---------------------- Heavy Duty Fin and Tube
Type Thermostat -------------- Starts to Open at
Approximately l95F. Fully Open at
202F. Pressure Cap Required --------------------
-- (w/o cab) 7 PSI Pressure Cap Required
-------------------- (w/cab) 14 PSI When using
a proper operating pressure cap, the engine
temp erature can safely rise to 230F. Type of
System (Diesel) ------------- 12 Volt Negative
Ground Type of System (Spark Ignition) ------
12 Volt Negative Ground Batteries (Diesel)
------------ (2) 12 Volt Batteries Connected in
parallel. (Spark Ignition) --------------- (1)
12 Volt Battery (770 Series) Group Size 27H,
Rated at 1.255 to 1.265 Specific Gravity,
Discharge Rate 300 Amps at 0 F., Voltage drops
to 8. 7 after 10 seconds, Voltage drops to 1.0
volt per cell after 3-1/2 minutes. (870 Series)
- Group Size 30H, Rated at 1.255 to 1.265
Specific Gravity. Discharge Rate 300 Amps at
0 F. Voltage drops to 9.2 after 10 seconds.
Voltage drops 1.0 Volt per cell after 4
min. Alternator -------------------------- 12
Volt 55 Amp Output Voltage Regulator
--------------------- 12 Volt, Solid
State, Mounted on Alternator. Starter Motor
--------------------- 12 Volt with Solenoid
Switch Head Lights (2) -----------------12 Volt
35 Watt, Sealed Beam blood Lights (2 ------
---------- 12 Volt, 35 Watt, Sealed Beam Amber
Warning Light ------- 12 Volt, Double Face,
Flasher Type Rear Tail Light ---------------- 12
Volt, 60 Watt Sealed Beam Combination Tail and
Flood Lamp. Circuit Breaker System over load
check - 12 Volt Twin 40 Amp Breakers connected in
parallel, 80 Amp Rating- 60 Amp. Min. Continuous
capacity. Lights Circuit Breaker ------ 30 Amp.,
Located on Llght Switch Parking Brake Warning
Light ------ 12 Volt, Red Flasher Type 8
12
Warklnp brake Type--------------------------------
Cable Actuated by Or- chlin Type Handle -
Adjustable from Operator's Seat. Hydraulic
_at_rakea Type ----------------------------
Hydraulic Actuated, Self- Adjusting Disc Type
Differential Brakes. Type ---------------------
--- Hydraulic, Power Assisted, Self-Adjusting
Disc Type Diff- erential Brakes. Mechanical
Tranamlaalon Type 2 Speed Gear Range Witk a 4
Speed Spur Gear Section. Gear Selection
--------------- 8 Speeds Forward - 2
Speeds Reverse. Shifting ---------------------
Mechmflcal With Plunger Type Locks and Tube Type
Interlocks. Power Shift Tranamlasion Type
------------------------ 3 Speed Compound
Planetary With Hydraulically Actuated Clutches
and a 4 Speed Gear Range Section. Gear Selecñon
-------------- 12 Speeds Forward and 4
Speeds Reverse Shifting --------------------
Hydraulic Power Shifting Con- trolled By a Lever
On Operators Console. 4 Speed Range Con- trolled
By a Mechanical Shifter from a Lever On
Operator's Console.
9
13
Hyclrostatic P'ower Steering Pump
------------------ Large Volume, Spur
Gear,Continu- ous Running. Hand Pump Type
------------- Gerotor Bi-Directional, Driven By
the Steering Wheel. Actuating Cylinders
----------- 2 Way Cylinders Are Integral Part
of Steering Gear Mech-
Large Volume, Spur Gear, Continu- ous
Running. Type Valve ---------------- Dual Vaive -
Individual Hand Lever Control. Portable Cylinder
Coupling ------ Case Quick Detachable Break- away
Type. Piunp Capacity at 1900 Engine RPM
------------ ----- 16 GPM Relief Valve Pressure
---------------------- 1350 to 1550 PSI Portable
Cylinders Available Draft-0-MatIc System Type of
Sensing Lower Link Type Control Hand Lever Type
Valve --------------- 3 Positions - Raise - Hold
- Lower Type Draft Arms ---- Swinging, with
Manual Float Adjustment Type Hitch 3 Point
Category II
10
14
Type Hydraulically Operated Rotation Clockwise Spl
ine Size -------- 540 RPM ------ 6 Splines
-------- 1-3/8 Dia. 1000 RPM ----- 21 Splines
------- 1-3/8 Dia. Engine Speed 1900 RPM
------------ 540 or 1000 RPM Shaft
Speed felt ulles Method PTO Control
Lever Pulley Diameter ----------------------------
------ 10.5 Inches Pulley Face Width 7.25
Inches Ratio Engine RPM (540 PTO) l.'f16 to
l (1000 PT'O) ------------------------------------
- 1.723 to 1 1 RPM of Belt Pulley -----------
2.75 Feet Per Minute Belt Travet.
Standard or Yolre Type ---- Full Swinging
Roller Mounted. Will Accommodate a 1-1/4 Inch
Dia. Pin.
11
15
A P'ROXIMATE OVERAL.6 MEASUREMENTS
I\dode1 A B C D E F G H I K
Adjustable 15.5-38R1 7.50-16 F2 81 15 148 87 153 101 67 100
Dual 18.4-34R1 7.50-15F2 83 18 140 88 153 94 69 101 69 101
A and B Tire Sizes C thru K Dimensions in
Inches xppRoxiwxze weionv 870 Tractor
--------------------------------- 8100
Pounds 770 Tractor -------------------------------
------ 7900 Pounds 12
16
UIFMENT
TIRE AND WttEE6 E ront
TIRE SIZE TIRE PLY RIM SIZE TREAD TYPE DUAL ADJ. TIRE PRESSURE
6.00-16 6 400E-16 F2 X X 48
7.50L-15 6 6L-15 F2 X X 36
7.50-16 6 550F-16 F2 X 36
9.50L-15 6 8LBH-I5 F2 X 24
10.00-16 6 K8L-16 F2 X 28
11.00L-15 6 8LBH-15 F2 X 28
Rear
TIRE SIZE TIRE PLY RIM SIZE TREAD TYPE DUAL ADJ. TIRE PRESSURE
14.9-38 6 W14-38 R1 R2 X X 18
15.5-38 6 W14-38 R1 X X 18
15.5-38 8 W14-38 RI X X 24
15.5-38 8 WI4-38 R2 X X 24
16. 9-34 6 WI5L-34 R1 X X 16
16.9-34 8 W16L-34 RI X X 22
18.4-34 6 WI6L-34 RI R2 X X 16
23.1-30 8 D\V20-30 R1 R2 X 16
p(p Keep tires inflated to recommended
pressures. Check pressures at least every 60
hours of operation or once a week, whichever
occurs first. Do not reduce rear tire pressure to
in- crease traction. When plowing, increase
furrow wheel tire pressure 4 PSI. 13
17
FRONT WHGEL. TRGAD PLACING CWlth Wheela Dishecf
in OnlyJ STANDARD ADJ. AXLE SPACING IN INCHES
1-1/8" OFFSET WHEEL
2-1/4 OFFSET WH EEL
1 TO 6 S T T I N G S
WIDE ADJ. AXLE SPACING IN INCHES
I-1/8" OFFSET WHEEL 2-J/4" OFFSET WH EEL

62 - 90 60-88
a o cc oo " o I
J T0 8 S ET T I N G S
p(p Axle spacing listings above are from the
narrow setting, (with increments of 4 inches), to
the wide setting. p kJ When tightening the front
wheel bolts, torque 70 to 80 ft.lbs. 14
18

• F_at_WER MHIPT REAR WHEGL- TREAD MP'ACIhIQ
• Rear tie

HUB OR WHEEL MOVED OUT ON AXLE
HUB OR WHEEL MOVED IN ON AXLE
HUB OR WHEEL MOVED TN ON AXLE
HUB OR WHEEL MOVED OUT ON AXLE hole allows a 2
inch individual
flp(fl Each shifting position
wheel adjustment. Dimensions given when using
15.5 - 38 tire. When using 18.4 -34, 16.9 - 34
and 18.4 - 38 tires, the 60 inch dimension does
not apply. 15
19
MANUAL ADJ. REAR WPtEEL TREAD 0 ACINQ 86 REAR
AXLE WHEELS
WHEELS DISHED OUT
DISHED IN(
INSIDE BEAD OUTSIDE BEAD
34and 38" Wheels 60-76 70-88 62-88
30WheeIs 76-90 76-92 76-90 76-92 68-90 68-92 SOLRJHUB UNIV.HUB
Dimehsions given in inches (fl With the 34 rim
and 16.9-34 and 18.4-34 tire, the 60 does not
apply. 109" Rear Axle
WHEELS
WHEELS DISHED OUT
DISHED IN(
INSIDE BEAD
INSIDE BEAD
OUTSIDE BEAD
34 and Wheels 60-100 70-112 62-112
30 Wheels 68-114 SOLID HUB
76-116 76-116 68-116 UNIV. HUB
Dimensions given in inches fl flfl With the 34"
rim and 16.9-34 and 18.4-34 tire, the 60
does not apply. 16
20
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DUAL REAR WHEEL TREAD MWACINO CWIth 1OO" A ie A
X LE H OUS ING 60 TO 80 FT. LBS. TORaUE ON
DUAL STAMPED WHEEL BOLTS W HEE L H UB INSID E WH
EE L
2 MI NI MU M B ET W E E N T IRE S TR EA D
WHEEL Outside Stamped Inside Cast Iron
Whl. Outside Inside Cast Iron Whls
uu
TIRES 15.5-38
100
60 60
12.4-42
112 94"
p p A minimum 2" clearance must be maintained
between the inside wheel and rear
fender. AFP'ROXTMATE TRAVEL OPEEDS IN MPH Power
Mhlft Tranamloolen
Power ShGt Transmission Range Transmission Range Transmission Range Transmission Range Transmission Range
Power ShGt 2 3 4 M
1 1.8 3.0 4.6 10.2 M
2 2.5 4.0 6.2 13.7 M
3 3.1 5.0 7.7 17.0 M
Mecfnnlcal Ohlft Tranamlaalon
Mechanical Range Transmission Gear Transmission Gear Transmission Gear Transmission Gear Transmission Gear
Mechanical Range 2 3 4 M H
1 1.9 2.8 3.9 4.8 M H
2 6.0 8.5 12.0 15.0 M H
22
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