John Deere 25 Integral Forage Harvester Operator’s Manual Instant Download (Publication No.OMCA18799)

1
25 INTEGRAL FORAGE HARVESTER
Y
C
D
OPERATORS MANUAL 25 INTEGRAL FORAGE
HARVESTER OMCA18799 A5 English
A 5
O M C A 1 8 7 9 9
JOHN DEERE OTTUMWA WORKS OMCA18799 A5
LITHO IN THE U.S.A. ENGLISH
2
To the Purchaser
This new forage harvester was carefully designed
and manufactured to give years of dependable ser-
vice. To keep it running efficiently, read the
instruc- tions in this operator's manual. Each
section is clearly identified so you can easily
find the informa- tion you need - whether it is
operation, lubrication, or service. Read the
Table of Contents to learn where each section is
located. Use the alphabetical index for fast
reference. In addition to the equipment furnished
with your forage harvester, attachments are
available to help you do a better ob in special
crop conditions. These are described in the
attachments section of this man- ual and can be
purchased from your John Deere dealer. This
safety alert symbol identifies important safety
messages in this manual. When you see this
symbol, be alert to the possibility of personal
injury and carefully read the message that
follows.
Your operator's manual contains SI Metric equiva-
lents wnich follow immediately after the U.S.
custom- ary units of measure. Right-hand' and
left-hand sides are determined by facing in the
direction the harvester will travel when in
use. Record your forage harvester serial number
in the space provided on page 28. Your dealer
needs this information to give you prompt,
efficient service when you order parts. If your
harvester requires replace- ment parts, go to
your John Deere dealer where you can obtain
Genuine John Deere partsaccept no
substitutes. The warranty on this forage
harvester and attach- ments appears on your copy
of the purchase order which you should have
received from your dealer when you purchased the
forage harvester.
3
JOHN DEERE 25 FORAGE HARVESTER PREDELIVERY CHECK
LIST
After the harvester has been completely assem-
bled, inspect it to be sure unit is in good
running or- der before delivery to the customer.
The following check list is a reminder of points
to inspect. Check off each item as it is found
satisfactory or after prop- er adjustment is made.
O Feed roll drive chain idlers adjusted. (Page
17.)
O Sharpening stone is tightened against grinder
door. (Page 9.) Strip-coating has been removed
from stone shaft.
O Harvester has been run for one-half
hourbear- ings are not heating.
O Harvester has been assembled as per instruc-
tions. Nuts on all bolts have been tightened and
all cotter pins spread.
Torque measured to slip clutch after initial
break- away. (Page 18.)
O All grease fittings have been lubricated and
gear cases filled. (See lubrication, pages 13-15.)
Discharge spout cap control rope properly in-
stalled. (Page 25.)
All moving parts are working freely.
(Signature) OWNER REGISTER Name
..................................................
.......................... Address ........ City
..................................................
......State . Serial No. .........................
............................................ Opera
tor's Manual No...................................
.............. Date Sold .........................
............................................
0 Cutterhead adjustment and knife mounting bolts
have been checked. (Page 16.)
(Date Set Up)
DELIVERY CHECK LIST At the time harvester is
delivered, the following check list is a reminder
of very important information which should be
conveyed directly to the customer. Check off each
item as it is fully explained to cus- tomer.
0 When transporting the forage harvester on a
road or highway, use lights and devices for
adequate warning to operators of other vehicles.
In this re- gard, check local governmental
regulations. Vari- ous safety lights and devices
are available from your John Deere dealer.
0 Advise the customer that the life expectancy
of this or any other machine is dependent on
regular lubrication as described in operator's
manual.
Advise the customer of all the safety precautions
he must exercise while using this harvester.
Advise the customer of the optional attachments
that are available for special crop and operating
conditions.
0 Give the operator's manual to the customer and
explain all operating adjustments and lubrication
fully.
0 Advise the customer of need for separate up
and down lift control stops and importance of
adjusting hitch for minimum side sway.
0 Advise the customer of the proper procedure
for using the sharpening stone and importance of
maintaining proper stationary knife to cutterhead
knife adjustment.
Si nature)
0 Explain the proper hookup installation. (Date
Delivered) OM-CA18799 (L4) Litho in U.S.A.
4
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AFTER-SALES CHECK LIST It is suggested that the
following items be checked sometime during the
first season's operation of the forage
harvester. O Go over entire machine for loose or
missing bolts. O All chains are properly
tightened. O Check for correct adjustment of
cutterhead knives 0 All safety shields are in
place. as given in the operator's manual. O Check
for broken or damaged parts.
nspect the cutterhead knives and stationary
knife to be sure they are sharp and properly
adjusted.
0 If possible, run the harvester to see if it is
func- tioning properly.
O Check for proper sickle knife register.
O Review the entire operator's manual with the
cus- tomer and stress the importance of proper
and regular lubrication and safety precautions.
(Date Checked)
(Signature)
6
Contents
Page Safety Suggestions ....................
..................................................
.......... 2 Identification Views
.................. ...............................
................ .............. 3
Operation
4
Lubrication
13
16
Service
Trouble Shooting
21
Attachments
23
24
Assembly
28 29
Specifications
Index .
7
Safety Suggestions
When transporting the forage harvester on a road
or highway at night or during the day, use
accessory lights and devices for adequate warning
to the oper- ators of other vehicles. In this
regard check local governmental regulations.
Various safety lights and devices are available
from your John Deere dealer. R e duce spe ed
belore tubning or apply ing the brakes. Apply
both tractor brakes evenly when mak- ing
emergency stops. Drive at speeds slow enough to
insure your safety. Make sure that your tractor
has the required front end ballast as prescribed
in your tractor operator's manual Shift the
tractor into a lower gear when transport- ing
down hills or steep slopes. Be alert, the life
you save could be your own.

• The safety of the operator was one of the prime
  considerations in the minds of John
• Deere engineers when this harvester was designed.
  Shielding, simple adjustments, and other safety
  fea- tures were built into the harvester wherever
  possible.
• Before servicing, cleaning or adjusting the
  harvest- er, removing material from it during
  field operation, hitching or unhitching a wagon,
  always
• Disengage all power,
• shut off engine, and
• wait until harvester cutterhead has stopped
  rotating.
• Never stand under discharge spout while harvester
  is operating.
• Be sure all safety shields are properly installed
  be- fore starting operation.
• Do not operate the harvester without shields over
  PTO hookup. Shields must rotate freely. Lubricate
  their support bearings as necessary.
• Never open cutterhead inspection door while cut-
  terhead is running.
• Use wood block in cutterhead to prevent it loom
• turning while adjusting knives.
• Stand clear of row-crop gatherer chains. Do not
  feed stalks into row-crop unit with your hands.
• Never unhitch a wagon on sloping ground.
• Wear relatively tight and belted clothing. Loose
  clothing may catch on some part of the machine
  and cause an injury.
• Close cutterhead door, grinder door, and right-
  hand chain shield before operating knife grinder.
• Lower harvester before leaving harvester
  unattend- ed to avoid accidental dropping of
  harvester by de- pressing hitch control lever.

8
25 Integral Forage Hørvesler - Right-Hand View
2S fntegra/ Forage Harvester - Løfi-Hand VIew
9
Operation
ATTACHING HARVESTER TO TRACTOR Preparing the
Harvester
Preparing the Tractor The 25 Integral Forage
Harvester can be mounted on any tractor having a
category II three-point hitch and a power takeoff
that conforms to ASAE/SAE standards. Specified
power takeoff speed is 540 rpm.
Adjusting the Hitch Beam Hitch beam adjustment
depends upon the tractor overall width which is
determined both by the tractor wheel setting and
the dimensions of tractor tires.
Tractor Wheel Setting Any tractor with an overall
width that does not ex- ceed 76 (2.29 m) can be
used for harvester opera- tion.
When adjusting the hitch beam, a minimum clear-
ance of 1-9/16 inches (4.0 cm) between the inner
edge of harvester and right-hand rear tractor
tire must be maintained to prevent the harvester
from rubbing the tractor tire. The distance
between the in- ner edge of harvester and
right-hand rear tractor tire must not exceed 5
inches (12.7 cm). Mount the har- vester as close
as possible to the tractor.
Reter to specifications on page 28. See your
trac- tor operator's manual for tractor wheel
setting.
Tire Inflation Inflate the tractor tires as
recommended in the tractor operator's manual.
Tractor Weights CAUTION Additional weights
must be added when attaching to tractor. When
attaching harvester to tractor, front weights
and/or left wheel weights must be added. See your
tractor operator's manual for weights
available. Draft Links and Sway Blocks The
3-point hitch must be equipped with sway blocks
to prevent the inner edge of the harvester from
rubbing against the right-hand side of the trac-
tor. (See tractor operator's manual.)
By using different attaching holes for assembling
the hitch beam to hitch beam support on harvester
body, fhe following distances between center line
of hitch mast and inner edge of harvester can be
ob- tained
38-9/16 inches (98 cm) 40-15/16 inches (1.04 m)
43-5/16 inches (1.10 m)
The 3-point hitch must be equipped with square
tube-type (heavy duty) draft links for use on atl
trac- tors. Most small utility-type tractors have
flat bar type draft links which must be changed.
See tractor oper- ator's manual tor adjustment.
Slide hitch beam onto hitch beam support, match-
ing holes that correspond to required distance.
Se- cure hitch beam in place with eight cap
screws (1). Tighten cap screws to 145 ft-lbs (198
Nm) torque.
Sway chains and braces must be used on other make
tractors to limit side sway of forage harvester.
Only category II three-point hitch is recommended.
10
Operation 5
Attaching to Tractor 1. Position harvester on a
level surface.
Attaching Hitch Extensions
NOTE The tractor sway blocks and draft
links musf de properly adjusted before attaching.
2. Attach draft IinIs to hitch studs. Use
washers to take up as much side play as
necessary. If side play is too excessive,
purchase sway block shims from your John Deere
dealer. (See tractor operator's man- ual.)
H1TCH
E7TENSI0NS IN FORWARD P0S1TI0N
IMPORTANT If using telescoping draft links, the
left-hand link must be latched first to avoid
harvester swinging and striking tire.
When attaching harvester to tractor with rear
wheel width of less than 83 inches (2.11 m)
install exten- sions in forward position,
3. Locate front end of center link in upper hole
on tractor. Adjust length and attach center link
to hitch pin on upper mast. Level the harvester
using the center link.
4. Check side movement by measuring side sway of
harvester on hitch and minimum clearance to
right-hand tire. Adjust links, sway blocks, sway
block chains or braces as required to obtain
minimum clearance of 1-9/16 inches (3.97 cm) from
harvester to tire. Add washers to eliminate
clearance in the hitch pin joints.
R I GH T H 4N D EXTENSION Iñ F 0 R9 AR D P 0 S T
T t0 d LEFT HAND EXTENSION 1N REA9 POSITION
5. Install lock-type spring pin by pinchin9 to
unloCk and pivotin9 handle up. Push down to snap
into posi- tion. Use spring pin to avoid loss of
harvester.
On tractors with 83 inches (2.11 m) or more rear
wheel width, place right-hand extension to the
for- ward position and the left-hand extension to
the rear position with hitch beam adjusted to
maximum posi- tion. This is necessary to offset
the harvester to the right-hand side of tractor.
SH0 UL OE R
SH 0 UL DE R Hitch must measure 32-1/2 inches
(86.2 cm) be tween shoulders on lower hitch pins.
This is a stan- dard dimension required to fit
most tractors.
11
6 Operation ATTACHING HARVESTER TO
TRACTORContinued Attaching PTO Hookup Adjusting
Stop Controls IMPORTANT It is necessary to
adjust the trac- tor height stop, limiting the
transport height of the harvester, to avoid
extreme universal joint angles and possible
separatio n of the PTO shafts.
G EA R C AS E
P T 0 S H A FT
Adjust down stop on tractor to control cutting
height.
If your tractor does not have a height stop or
down stop adjustment, order as shown below
A. On 2010, 2510, 2520, or 3010 tractors built
prior to 1969 order AE15387 height stop. The down
stop is standard equipment on the tractor.

• Raise or lower harvester until the tractor PTO
  shaft and the gear case shaft are level.
• With hitch extensions installed for proper
  tractor measure the distance (A) between the PTO
  shaft and the gear case shaft.
• If the distance (A) meas ures 22- 1/2 to 25
  inches (57.2 to 63.5 cm), connect PTO hookup.
• If the distance (A) measures more than 25 inches
  (53.5 cm), readjust hitch by relocating exten-
  sions to the rear positionif necessary, remove
  both upper and lower extensions.
• If the distance (A) measures less than 22-1/2
  inches (57.2 cm), readjust position of hitch
  exten- sions.
• 3. If a different tractor model is used, go
  through the above steps to assure correct PTO
  hookup in- stallation.

B. On 2520 or 3020 tractors built after 1969
order AR50340 height stop. Down stop is standard
equip- ment on tractor.
C. On 4030 tractors order AR60331 height stop.
Down stop is standard equipment on tractor.
D. On all 1520, 530, 3030, 2120, 2130, 2530
or 2630 tractors use knob provided on quadrant.
It may be necessary to order another knob for
down stop.
E. On all tractors other than John Deere it is
nec- essafy tO have a height stop on rockshaft.
IMPORTANT Never operate the harvester with- out
the up and down stops.
Jack Stands
CAUTION Telescoping powershaft sec- tions of
the PTO hookup must have mini-
t
mum overlap of 4 inches (10.2 cm) in the RAISED
position to eliminate the possibility of
separation during operation of the machine. 4.
Attach PTO safety chain to one of the three-
point hitch links. Chain must remain slack during
raising or lowering of harvester. When reducing
the height of stubble by lowering the harvester,
the length of the upper lift link must be changed
to compensate for the distortion of the uni-
versal oints.
CAUTION Never operate a 540 rpm har- d vester
with a 1000 rpm tractor. NOTE Never use a steel
hammer when attaching or removing U-joints or
severe damage will result.
After the harvester has been properly mounted on
tractor, pivot jack stands into transport
position and lock them at hole A".
12
Operation 7
Starting the Harvester CAUTION Never start the
forage harvest-
Rotating the Discharge Spout
s er until all powershaft and other safety
shields are in place and secured.
Start the tractor engine and set it at half
speed then engage the tractor PTO. IMPORTANT Do
not engage the PTO when the engine is at full
speed or damage to clutch may result. Increase
speed of PTO to 540 rpm before entering the
crop. The cutterhead will operate at 1420 rpm
when tractor PTO is at proper speed of 540 rpm.
This cut- terhead speed must always be maintained
during op- eration to assure top performance of
the harvester CAUTION Never operate 540 rpm har-
vester with 1000 rpm tractor. The ground speed to
be adopted while operating in field rows depends
on engine horsepower and crop condition. CAUTION
Reduce speed when operating or transporting over
uneven or rough ter- rain.
The discharge spout can be rotated 120 degrees
from a left-hand delivery to a rear
delivery. Rotate the discharge spout by turning
crank (1). The position of the control support is
adjustable, to position the discharge spout
controls within easy reach from the tractor
seat. Use control lever (2) to direct the flow of
material with the spout cap (3). The drag of
control lever (2) can be adjusted by tightening
or loosening nut (4) to allow pulling or pushing
the lever by hand. Keep drag of lever strong
enough so it will not vibrate out of
position. CAUTION Do not stand under the dis- k
charge spout while the harvester is
oper- ating. HARVESTER OPERATION Break-In CAUTION
Never start the forage harvest-
Overrunning Clutch An overrunning clutch is
provided to protect har- vester components from
damage that may be caused by the momentum of
rotating cutterhead.
Slip Clutch
s er until all safety shields are in place
and properly secured. Check oil level in the
bevel gear case (see Lu- brication", page
15.) Operate the new machine at half speed to
allow bearings to align. Be sure bearings are not
heating.
Tighten all nuts and bolts, and check to see that
cotter pins are properly spread. After the first
day of operation re-check all bolted joints,
particularly all bolts on cutterhead for tight-
ness. (See page 15.)
To prevent harvester parts from being damaged
through overloading, the slip clutch (1) is built
into the drive line. This clutch has been
adjusted at the factory and its setting should
not be changed. Refer to page 18 for checking
procedure.
13
8 Operation
OPERATIONContinued To prevent severe angles or
separation of tele- scoping PTO hookup ends,
limit the path of rockshaft control lever by
setting the stop on lever quadrant as necessary.
(See page 6.)
HARVESTER
Wagon Unloading Shaft
Length of Cut The length of cut depends on the
rate the material is led into the cutterhead. The
feeding fate can be varied by changing the
sprockets of the teed roll drive. Cutting
Length Sprocket
1/8-inch (3.18 mm) 5/32-inch (3.95 mm 3/16-inch
(4.77 mm) 1/4-inch (6.35 mm)
12-Tooth 15-Tooth 19-Tooth 24-Tooth
CA 5567 CAUTION Put all shields in place before
operating wagon unloading shaft. To operate,
remove PTO hookup from gear case shaft on
harvester and attach to unloading shaft. Connect
wagon power shaft to rear ot unloading shaft.
NOTE The shorter the length of cut, the more
horsepower is required to operate the harvester.
IMPOR TANT Use ca re when making sharp turns to
avoid wagon striking harvester or trac-
tor. NOTE. See wagon operator's manual lor
opera- tion of wagon.
Operating Adjustments Sickle Height Adjust
sickle height by using the rockshaft control
lever on tractor. When operating in rocky fields,
or in fields where the crop has been hilled , the
harvester must be raised to allow the sickle
assembly to clear obstruc- tions. Under regular
conditions, the divider points should be allowed
to lightly touch the ground. The average distance
of cutterhead from the ground is about 27.5
inches (83.8 cm). In this case, the upper
covering of the cutterhead should be ap-
proximately horizontal. To obtain a given stubble
height, start with a low setting of lift links
and adjust to desired stubble height by varying
the length of up- per link, which will result in
a minimum distortion on universal joints.
To change or reverse sprockets, proceed as fol-
lows
Use socket wrench (1) to swing the pivot arm of
idler sprocket (2). Slacken chain (3) and remove
it from idlef sprocket. After removing Quik-Lock
pin (4), the sprocket can be reversed or changed.
Install spacer washers as necessafy to re-align
sprocket with chain. Re-tighten the chain with
idler sprocket.
IMPOR TANT Alwa ys disenga ge the tractor PTO
when raising or lowering the harvester.
14
Operation 9 Loosen two nuts, slide the lOCk
plate upward and open the cutterhead door. The
opening provides ac- cess for adjusting
cutterhead knives. Always keep the door closed
during harvester operation. Sharpening
Cutterhead Knives
Depending on sprocket used, it may be necessary
to change the idler sprocket position on pivot
arm. Thus the chain will be kept tight without
adding or re- moving links.
Sprocket 19-Tooth 24-Tooth 12-Tooth 15-Tooth
Position of Sprocket at hole "A" at hole A at
hole B" at hole B
Use the following procedure to sharpen cutterhead
knives
IMPORTANT To maintain the optimum cutting
angle, reverse the direction of cutterhead
rotation whenever the knives are being sharpened.
When using the 12 and 15-tooth sprockets, chang-
ing the tension of spring C may be necessary to
keep the chain properly tightened. The chain
should never climb or jump sprockets, even if
overloaded.
NOTE. Reverse grinding is possible wit/?ouf
dis- connecting the chain.
1. Loosen chain (1).
Cutterhead Door CAUTION Disengage all power and
shut off tracto r eng i ne befo re rem oving or
opening cutterhead door. The cutterhead may
continue to rotate for several minutes after
power is shut off to avoid injury, do not open
or re- move any doors or shields until these
rotating parts have stopped completely. Keep
the doors and shields tatched tightly when
operating and when sharpening knives.
2. Remove sprocket (2).
3. Loosen chain tightening roller (3).
4. Place chain over tightening roller (3) and
install sprocket (2).
5. Tighten nut of roller (3) with chain in mesh
with sprocket (2).
6. Tighten chain idler nut (1). IMPORTANT Make
sure shield is closed be- fore sharpening
cutterhead knives. Best results are achieved
by proper stationary knife setting, not by
frequent sharpening of knives
15
10 Operation
HARVESTER Operating AdjustmentsContinued Sharpeni
ng Cutterhead KnivesContinued
OPERATIONContinued iMPORTANT Do not over-use
the sharpening etone. Use it only long enough to
sharpen the cutterhead knife edges.

• Adjusting stationary knife to knife clearance
  fre- quently is a better method of maintaining
  harvester performance than frequent sharpening of
  knives.
• NOTE Avoid too much crank pressure on stone as
  this results in stone vibration, rapid stone wear
  and stone breakage.
• After sharpening knives, shut off tractor en-
  gine.
• After cutterhead has stopped rotating, raise the
  sharpening stone and re-install door under stone
  and on top of ledge at front. Lower stone against
  the door to hold in place.

13. Reset cutterhead drive chain in its initial
posi- tion.
7. Turn sharpening stone crank (4) clockwise
to raise the stone.
14. Adjust stationary knife on right-hand and
left- hand side to clear the knives by 0.010 to
0.020-inch (0.25 to 0.51 mm). (See page
16.) Adjusting the Stationary Knife IMPO R
TANT The service Iife of c utter head knives
depends on proper stationary knife ad- justment.
Frequent adjusting of the stationary knife gives
better results than frequent sharpen- ing of
knives.
NOTE Too much clearance between stationary kni(e
and knives will increase horsepower require- ment.

1. Open cover on top of sharpening stone com-
   partment and remove the door (5) under the stone.
   Close cover, cutterhead door, and right-hand
   chain cover.
2. Set tractor engine at 1/2 normal operating speed
   and engage the power take-off drive. (PTO speed
   should be about 230 fpm during sharpening of
   knives.)
3. Lower the stone by turning the crank counter-
   clockwise. When the stone touches knives, slide
   the stone along the full length of cutterhead
   knives using rod (6).

16
Operation 1 fi
Corn Stalk Guide
CA 6023 Adjust stationary knife as follows 1.
Remove covers (1) on each side of cutterhead
housing.
2. Loosen both stationary knife mounting bolts
(2), just enough to allow moving of stationary
knife.
To match corn stalk height, position stalk guide
to- ward the front or rear of harvester. Loosen
attaching bolt (1) and slide guide to desired
position. The guide rods can be shortened at
their rear ends if neces- sary. This allows
sliding the guide farther toward the rear to meet
certain crop conditions.
3. Loosen lock nut on lower end of both cam bolts
(g).
4. Turn cam bolts until all clearance between
sta- tionary knife and knives is eliminated.

• Adjust cam bolts to obtain 0.010 to 0.020-inch
  (0.25 to 0.51 mm) clearance.
• Re-tighten both stationary knife mounting bolts
• and re-check clearance. Tighten the mounting
  bolts to 75 ft-lbs (102 Nm) torque.
• Tighten lock nuts on cam bolts to 75 ft-lbs (102
  Nm) torque.
• Reinstall covers (1).

IMPORTANT Knife-to-stationary knife clear-
ance should never be less than 0.010-inch (0.25
mm).
The high position (2) of stalk guide may be
desir- abJe under special crop conditions. Loosen
bolts (1), pull the guide out compJetely, reverse
the guide and re-insert into supporting tubes on
harvester.
17
12 Operation
STORAGE To assure best performance at the
beginning of the next season, take your harvester
to your John Deere dealer for an inspection and
any necessary service work at the end of each
season.
HARVESTER OPERATIONContinued Floating Divider
Points

• End of Season
• Clean the harvester thoroughly inside and out.
• Grease the machine thoroughly, followine in-
  structions in Lubrication section.
• Apply a good rust preventive, such as paint or a
  heavy coating of grease, to bare metal parts or
  parts which have been worked bright.
• Remove all chains and wash them in a solvent.
  Keep chains stored in an oil bath. Use heavy oil
  for this purpose.
• List all needed replacement parts and order them
  immediately.

Beginning of Season 1. Check the slip clutch to
make sure it will oper- ate properly. See page 18.
The floating divider points swing around pivot
pins (1). Their floating action is limited by
straps attached to dividers as indicated by
arrows. Adjust height of divider points to suit
field conditions. To adjust the point, loosen
adjusting nut on eyebolt located be- neath fender
and adjust to desired height. Re-tighten
adjusting nut. Repeat procedure on opposite side
for uniform height.
2. Install chains. Be sure spring locks of
coupler links are properly positioned. See page
17.
3. Drain and flush bevel gear case. Refill to
check plug-ievel with specified oil. See
Lubrication page 15.
TRANSPORTING
4. Check all bolts for tightness. Check to see
that cotter pins are properly spread.
CAUTION When transporting the forage harvester
on a road or highway at night or during the day,
use accessory lights and de- vices for adequate
warning to the operators of other vehicles. In
this regard check local govern- mental
regulations. Various safety lights and de- vices
are available from your John Deere dealer.
5. Run in any major moving parts which have been
replaced.
Rotafe the discharge spout into the rear delivery
position for narrow transport width.
18
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Lubrication
13

• The economical and efficient operation of any ma-
  chine is dependent upon regular and proper
  lubrica- tion of all moving parts with a quality
  lubricant.
• The period recommended is based on normal con-
  ditions severe or unusual conditions may require
  more frequent lubrication or oil changes.
• Clean grease fittings before using the grease
  gun. Replace any lost or damaged fittings
  immediately.
• CAUTION Do not clean, lubricate or ad- d just
  your machine while it is in operation.
• SYMBOLS
• Lubricate with John Deere Multi-Purpose Lubricant
  or an equivalent SAE multi- purpose-type grease
  at hourly intervals
• indicated on the symbols.
• Lubricate periodically with SAE 10, 20, or 30
  oil.
• Brush periodically with John Deere Multi- Purpose
  Lubricant or an equivalent SAE multipurpose-type
  grease.
• EVERY 10 HOURS
• Roller and Gatherer Chains
• The basic requirement of roller chain lubrication
  is to maintain the original oil coating on rolls
  and chain link pins within the chain links.
• INtPORTANT Liberally apply SAE 30 or heavier oil
  to chains every 10 hours of operation.
• Lubricate chains immediately after operation when
  they are still warm. Let the machine stand idle
  for a short period after lubricating to insure
  effective oil penetration, resulting in longer
  chain life.

Give panicular care to chains driving the cutter-
head or feed rolls, as well as gatherer chains,
be- cause all these chains are transmitting heavy
loads. Lubricate chains at least once a day. If
chains tend to heat, lubricate more
frequently. NOTE Most efficient chain
lubrication is obtained by immersing chains in an
oil bath. Use hot oil of high viscosity for this
purpose.
CA 7624
20
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