John Deere 3800 Forage Harvester Operator’s Manual Instant Download (Publication No.OME49870)

1
3800
FORAGE HARVESTER
Y
C
D
OPERATORS MANUAL 3800 FORAGE HARVESTER OME49870
B7 English
B 7
O M E 4 9 8 7 0
OTTUMWA WORKS OME49870 B7
LITHO IN THE U.S.A. ENGLISH
2
To the Purchaser
This new 3800 Forage Harvester was carefully de-
signed and manufactured to give years of
dependable service. To keep it running
efficiently, read the instfUC- tions in this
operator's manual. Each section is clearly
identified so you can easily find the information
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, harvesting units are available
to help you do a better job in special crop
conditions. These are described in the Harvesting
Units and Attachment section of this manual 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.
Because John Deere sells its products
world-wide, U.S. units of measure are shown with
their respective Metric equivalents throughout
this operator's manual. These equivalents are the
SI (International System) 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
harvester and harvesting unit serial numbers in
the spaces provided on page 69. Not only does
your dealer need this information to give you
prompt, efficient service when you order parts
but it provides necessary identification in the
case of theft. If your harvester or harvesting
units require replacement parts, go to your John
Deere dealer where you can obtain Genuine John
Deere partsaccept no substi- tutes. The
warranty on this forage harvester and harvest-
ing unit appears on your copy of the purchase
order which you should have received from your
dealer when you purchased the forage harvester.
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Contents
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Safety Suggestions ...............................
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2,3 Identification Views ........................
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4,5,6 Q,F t P . . . . . . . . . . . . . . . . .
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. . . . . . . . .30 Lubrication. . . . . . . . .
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.48
Trouble Shooting ....
Harvesting Units and Attachments
..................................................
.....52 Assembly . 58 SpeCifiCationS
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................ , ... 68 lndeX.... .... . ..
... . .... ...... . ... ... . ...... . .. .... .
. ... .. .... . . . . .. . . . . . .. . .. . .
.. .70
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Safety Suggestions

• 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.
• You can make your farm a safer place to live and
  work if you observe the safety suggestions given.
  Study these suggestions carefully and insist that
  they be followed by those working with you and
  for you.
• All machinery should be operated only by respon-
  sible persons who have been delegated to do so.
• Disengage all power and shut off tractor engine
  before
• Removing or opening auger, cutterhead and fan
• clean-out doors.
• Servicing or adjusting harvester.
• Removing material trom harvester, or hitching
  wagon to harvester.
• The auger, tan, and cutterhead may continue to
  rotate for several minutes after power is shut
  off. To avoid bodily injury, do nol open or
  remove any doors or shields until these rotating
  parls have stopped completely. Keep the doors and
  shields latched tight- ly when operating and when
  sharpening knives.
• Never stand under discharge spout while harvester
  is operating.
• Always have safety shields in place while operat-
• ing.
• Do not operate this machine without proper
  shield- il lg over the powershaft and universal
  iolnts. Hook-up shields must rotate freely.
• Never clean, oil, or adust the harvester when it
  is running.

Provide a first-aid kit for use in case of
accidem. Use proper antiseptics on scratches and
cuts without delay. Clothing worn by the
harvester operator should be fairly tight and
belted. Loose jackets, shirts, or sleeves should
never be worn due to the danger of getting into
moving parts. Use wood block in cutterhead to
prevent cutter- head from turning when adjusting
knives. Keep hands, feet, and clothing away from
moving p Always unhitch a trailing wagon on level
ground. Be sure to review the Corn Head
Operator's Man- ual thoroughly for worn head
safety suggestions. Make sure everyone is clear
of the harvester be- fore starting so they cannot
be struck by moving parts or caught in a drive
belt or chain.
6
Safety Suggestions 3
When transporting the harvester on a road or
high- way at night or during the day, use
accessory lights and devices for adequate warning
to the operators of other vehicles. In this
regard check local governmen- tal regulations.
Various safety lights and devices are available
from your John Deere dealer.
Do not operate the harvester without a header
unit installed.
Be careful when operating on hillsides as the
trac- tor may tip sideways if it drops into a
hole, ditch or other irregularity.
Stand clear of row-crop gatherer chains. Do not
feed stalks into row-crop unit with your hands.
Finally, reme mbe r this An accident is usually
caused by someone's carelessness, neglect, or
over- sight.
Be alert, the life you save could be your
own. Inexperience and lack of know-how in
repair and maintenance can result in personal
injury as well as equipment damage. Know what to
do and how to do it before attempting a
job. Protect against the risk of personal injury
and ma- chine damage by operating implement at
the PTO speed for which it is designed. Operate a
1000 rpm implement only on a 1000 rpm PTO. Make
sure knives are in good condition before op-
erating the harvester. A loose or excessively
worn part may fracture unexpectedly when striking
an ob- struction. Refuel the tractor only when
the engine has been shut off. Do not smoke when
working around flam- mable fuel, especially when
refueling the tractor. Never ride, or permit
others to ride, on the drawbar of the tractor or
on the harvester. Make this manual your guide
and do what it rec- ommends, regardless of what
may have been your practice with other makes of
harvesters, or the sug- gestions that may be made
to you by well-meaning friends or neighbors.
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10
Operation
PREPARING THE HARVESTER Adjust the tension on the
cap control brake at B, to permit the crank to
be pulled or pushed by hand. Keep the tension
adjusted tight enough so the cap will not work
out of position.
Controls Discharge Spout Crank
Adj ust th e worm an d s po ut g ea r c lea ran
ce (bac klash) by adding or removing the spaci ng
was h- ers C between the worm gear mounting and
transi- tion section.
The discharge spout can be rotated 165 degrees
from a left-hand delivery to a rear, right-hand
deliv- ery. Rotate the discharge spout by turning
the crank. Adjust the height of the crank at A,
so it can be reached from the tractor seat.
Adjust the length of the spout crank at D, so
it can be reached from the tractor seat.
CAUTION Do not stand under the discharge spout
when lhe machine is running.
Feed Roll Shift Lever
Push or pull the crank to direct the flow of
material with the discharge spout cap. The
shift lever controls the direction of rotation of
the feed rolls. When the feed roll shift lever
is in the center (neutral) position, the feed
rolls and the harvesting unit will not operate.
The rear position is for normal operation and the
front position will operate the feed rolls and
har- vesting unit drive in reverse.
11
8 Operation
PREPARING THE HARVESTERContinued Feed Pa// Shift
LeverContinued Should congestion occur in the
feed rolls, they can be quickly reversed by
pulling the lever toward the tractor. When the
rolls are cleared, shift the lever into the rear
position and resume operation. Adjust the shift
lever up or down for easier access from the
tractor seat by raising or lowering the exten-
sion at A, or by raising or lowering the
bracket at B. If a remote hydraulic cylinder is
used, it must con- form to ASAE-SAE standards.
Use a combination of 54-inch (1.4 m) hose
extensions for this installation. NOTE Reter fo
your tractor operator's manual lor correct in
formation regarding the tractor hookup ol the
remote hydraulic cylinder oil lines. Lengthen or
shorten the lever for better accessibili- ty from
the tractor seat by loosening the locking collar
and setting the lever. Retighten the locking
collar. Tongue Locating Pin
The tongue can be placed in any one of six posi-
tions so the harvester can be centered on the row
or transported directly behind the tractor.
Hitching Wagon
The spring-loaded locating pin can be locked in
the disengaged position to permit the tongue to
be set in any of the six positions. Engage the
locating pin after positioning the
tongue. Harvesting Unit Lift A ratchet-type hand
lift or a remote hydraulic cylin- der is used to
raise the harvesting unit ffom the ground. For
convenience, the remote cylinder is recommend- ed.
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Operation 9
Keep valve caps screwed finger-tight onto valve
stems. This will prevent dust, fine gravel, mud,
and other foreign material from accumulating in
the valve core and permitting the compressed air
to escape.
The wagon tongue may be attached in any one of
three positions on the wagon hitch plate, to help
align the trailing wagon with the row spacing
when harvest- ing row-crops, or to trail directly
behind the spout when harvesting broadcast crops.
(See pages 53 and 54 for wagon hitch
attachments.) Jack Stand
Check tire pressure frequently and inflate or
deflate tires to obtain proper air pressure as
given in tire inflation chart below.
Tire Size 11L-15, 8-ply rating
Pressure 32 psi (220 kPa)
Keep wheel bolts tightened to 85 ft-lbs (115 Nm)
(12 kgm) torque. Preparing To Install Two Row
Corn Head NOTE See your operator's manual yor
correct in- stallation of the One Row Ear Coun
Unit.
Use the following procedure when corn head is
installed on the harvester for the first time or
if the attaching plate has been removed to permit
installation of other harvesting units.
During operating or transporting, the jack stand
(lo- cated on the side of the tongue) is locked
firmly out of the way by removing the spring
locking and holding pins then pivoting the stand
to the horizontal position. Lock the stand in
this position with the holding pin and the spring
locking pin.
Install long tongue assembly.
Remove regular feed roll springs, and lower feed
roll drive chain.
NOTE Save old lower leed roll drive chain for
use with other harvesting units.
When unhitching the tractor from the harvester,
place the jack in the vertical position and
secure it with the holding pin and spring locking
pin. Crank the stand down until it reaches the
ground. Several more turns will remove the
harvester weight from the tractor drawbar,
allowing you to pull the hitch pin and free the
tractor.
Tires Proper inflation is essential to the long
life of a tire. Lack of air pressure allows the
tire to slip on the rim and buckles the side
walls, resulting in torn valve stems and uneven
tread wear. Too much pressure causes undue strain
on tire structure and may result in ruptures due
to impact with stones, roots, or ruts. It also
causes excessive tread wear and allows tire to
cut in more on wet ground.
C Sprlng Link
WFeea Roll 6prlng
13
10 Operation PREPARING THE HARVESTERContinued Pre
paring To Install Two Row Corn HeadContinued Rais
e upper feed roll and install spacers (A (page
9) under feed roll bumper. Assemble the Mo
spacers to the bumper and then secure the
assembly to the harvester with Mo 1/4 x 5/8-inch
cap screws and 9/32 x 1/2 x 0.060-inch flat
washers. Install a special feed roll spring (B)
and link (C) to each upper feed roll arm.
Install corn head sprocket and tighten slip
clutch on harvester until it is locked solid.
This slip clutch is not needed for protection,
since there are slip clutches on the corn
head. IMPORTANT When replacing corn head with
another harvesting unit, reset slip clutch when
necessary. See page 28.
Install auxiliary lift spring over regular lift
spring. Be certain to install heavy washer at
front of spring. Install attaching plate and
drive chain on corn head.
ELO 0tt FILt5R
Install feed roll fillers to upper feed roll
using 5/16 x 3/4-inch cap screws and lock nuts.
Remove jack stand from harvester tongue and in-
stall in jack stand adapter with jack secured in
the top holes. The lower part of the stand must
be re- tained in adapter with a pin in the bottom
holes. Place the jack assembly under attaching
plate as shown. Be certain the two adapter pins
(point A) engage the back plate holes. Raise
corn head as high as jack will permit and lower
both stands to maintain height. Reposition jack
in adapter and secure in the mid- dle holes.
Repeat step 11. Remove jack stand and rep lace on
harvester tongue. Store the jack adapter as it is
needed when- ever you want to lift or lower the
corn head for instal- lation or removal of
attaching plate.
Axle Extension Riser Illustrated in High Position
Install an axle extension riser to both sides of
har- vester as shown with the wheel spindle in a
torward position. The 13-inch (33 cm) axle
extension riser is installed on the right-hand
end if a 30-inch (76 cm) or 40-inch (ION cm) corn
head is used.
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Operation 4 \
Install feed opening deck on attaching plate. See
page 67. NOTE Feed opening deck must be removed
belore using jack stand to lih or lower corn
head. Attach corn head to harvester. See
procedure for Installing Harvesting
Unit." Wheel Shield (Corn Head Only)
WLfft Bar ILtftShaW Place jack or other lifting
device under cutterhead housing to remove weight
from lift shaft (B). Remove drilled pins (C) and
lift bar (A) from lift shaft (B) and cutterhead
housing. Attach new lift bar, 9-3/4-inches (25
cm) long to lift shaft and cutterhead housing
with drilled pins. NOTE Save old lift bar,
8-3/4-inches (22 cm) long for use with other
harvesting units. Remove right-hand wheel and
spindle. Attach ex- tension assembly to
right-hand axle. NOTE When harvesting under
severe conditions to tilt the poinls to cut down
material or to increase harvester height it may
be desirable to tilt the harvest- er. Use 4 or
13-inch (10 or 33 cm) extensions to raise the
left-hand side of harvester. Reinstall wheel and
spindle to extension. Tighten wheel bolts to 85
ft-lbs (115 Nm) (12 kgm) torque. Install long
tongue assembly. NOTE A 3800 Harvester
previously equipped with an old sfy/e, non-offset
long tongue will only require the new offset
tongue. Install new tongue and reinstall old
powerline and shields from old slyle long
tongue. Attach row-crop to harvester and install
drive chain. See below. IMPORTANT Do not place
tongue in the ex- treme right-hand tongue
locating hole for trans- porting, or damage to
the 3-row row-crop could occur.
To adlust wheel shield, loosen the clamp bolt on
the shield support rods. Adjust the shield until
it is the proper distance from the harvester
wheel. Tighten the clamp bolt securely to
maintain shield adjustment. The wheel shield
keeps down and leaning corn stalks out of the
path of the harvester right-hand wheel. Adjust
the shield as close to the harvester wheel as
possible, leaving enough clearance to let stalks
and dirt pass beMeen the shield and wheel.
Preparing to Install 3-Row Row-Crop Use the
following procedure when installing the 3-row
row-crop on the harvester for the first
time. Tighten springs on harvesting unit drive
slip clutch to lock out slip clutch. IMPORTANT
When replacing 3-row with an- other harvesting
unit, reset slip clutch. See page 28. Raise the
cutterhead housing and place the trans- port lock
pin in locked position to hold unit in raised
position.
Installing Harvesting Unit IMPORTANT When
removing the corn head, the axle extension
risers, special feed roll springs and links, and
feed roll bumper spacers must be removed before
installing a pickup, row-crop or mower bar unit.
Also, the lower feed roll drive chain must be
reinstalled.
15
12 Operation PREPARING THE HARVESTERContinued
Installing Harvesting UnitContinued When
removing the 3-row row-crop, the wheel
spacers, special lift link and auxiliary lift
springs must be removed before installing a
pickup, corn head, mower bar unit or one and
Mo-row row-crops. When removing the pickup unit,
the auxiliary lift spring and special drive chain
(7-foot 2.1 ml), must be removed before
installing a row-crop, corn head or mower bar
unit. Adjust slip clutch as shown on page
20. NOTE. It is not necessary la remove the long
ton- gue assembly when attaching a pickup, 2-row
row- crop, mower bar unit or one row ear corn
unit.
NOTE It may be necessary, when attaching corn
head unit, to unhitch harvester from tractor and
lower tongue with jack stand to get harvester
anaching points low enough.
? ANSPORT LCXIHG CLIP LIFT
WTapered Pin Drilled Pin
DHarvesting Unit Drive Chain EIdler
Loop the harvesting unit drive chain (D) around
the sprockets. The chain must go over the idler
(E). Align the idler then connect the chain and
adjust the idler to give 1/4 to 1-inch (6 to 25
mm) free movement on the lower strand. When
installing the 7-foot (2.1 m) pickup remove ten
links (chain coupler is provided) from harvesting
unit drive chain and install. IMPORTANT Before
operating the harvester, pin A must be placed
in transport locking clip. On row-crops, 7-foot
(2.1 m) pickup, and corn head units, raise the
support stands.
IMPORTANT When installing a harvesting unit,
take out the transport lock pin (see
Transporting, page 29) holding the rear end of
the lift pivot (if used). Place the lock pin A
in the front of the lift pivot. Extend or retract
the cylinder or the hand lift until the lower
attaching points on the harvester align with the
attaching clips on the unit to be attached. (This
will be approximately 17 inches 43 cm above the
ground.) Attach the unit at the two lower points
then secure it with two square, tapered pins
(B). Retract the cylinder or hand lift until the
two upper attaching points are seated in the
clips on the unit being attached. Secure with two
drilled pins (C) and spring locking pins and
remove the pin A. This pin may be used when
transporting. Always remove the transport pin
after installing unit, and store the pin in the
hole in the transport locking clip.
Lift Spring Whether using a hand lift or remote
hydraulic cylin- der, adjust the lift spring
tight enough to carry most of the weight of the
unit. When the unit is fully raised, the lift
spring can be adjused to give the proper amount
of spring assistance. Refer to page 15 or 16,
Ground Pressure, for the adjustment of the unit
being used.
16
Operation 13
PREPARING THE TRACTOR
Adust tractor drawbar so it measures 16 inches
horizontally (41 cm) from end of PTO shaft to
hitch pin hole in drawbar and 6 to 12 inches (15
to 31 cm) from center of the PTO shaft to the top
of drawbar at hitch pin hole. The top of the rear
end of the drawbar should be 13 to 17 inches (33
to 43 cm) from the ground. The drawbar hitch pin
hole must be aligned vertically with the center
line of the tractor PTO shaft.
Attaching to Drawbar Hitch harvester to tractor
drawbar. The hitch clevis may be turned over 180
degrees to align the harvester powershaft with
the tractor powershaft horizontally. The tractor
and harvester powershafts must be in as near a
straight line as possible to provide a smooth
powershatt operation. The most common clevis
position is illustrated.
Adjusting Equalizer Hitch Drawbar Extension The
drawbar extension is adjustable for different
widths of drawbars.
The harvester can be attached to any tractor
having a drawbar and power take-off that conforms
to ASAE- SAE standards. The tractor must have a
1000 rpm power take-off speed to match the
powershaft speed of the harvester.
To adjust drawbar extension, loosen the cap screw
on each side of drawbar and slide cap screws
rearward until the drawbar is centered and held
firmly in drawbar extension. Tighten cap screws
tightly to 300 ft-lbs (407 Nm) (41 kgm) torque
minimum.
Inflate tractor tires as specified in the tractor
opera- tor's manual.
17
14 Operation
PREPARING THE TRACTORContinued Connecting
Telescoping Hookup CAUTION Never attach
telescoping hook- up while tractor Is running.
OPERATING THE HARVESTER Breakln Before starting
the forage harvester, check the oil level in the
gear cases and lubricate the machine. Add oil if
necessary. See page 35.
Slide the rear end of the telescoping hookup onto
the harvester powershaft and secure with a bolt
and hex. nut. Slide the front end of the
telescoping hookup onto the tractor powershaft
until it is secured with the spring-lock pin.
CAUTION Never operate the forage har- vester
until all the powershaft and other safety shields
are in place and secured.
Operate your new harvester at half-speed for 30
minutes to loosen up the bearings and to be sure
they are not heating. Reverse the direction of
the teed rolls for a few minutes during this
break-in period.
iMPORTANT Keep the hookup and powershaft eplines
clean of paint, dirt, and chaff. Place a lib-
eral amount of grease on splices whenever apart.
CAUTION Disengage all power and shut ofl tractor
engine before servicing or ad- justing harvester.
NOTE.- Never use a steel hammer when connecting
or removing the telescoping hookup. Keep the
hookup and powershaft splines clean.
Tighten all nuts and check cotter pins to see
that they are spread. Starting the
Harvester Engage the feed rolls before engaging
the tractor power take-off. (Push the lever
toward the rear.) Start the tractor and set it
at approximately half throttle then engage the
tractor PTO. IMPORTANT Do not engage the PTO
when the tractor is at full throttle or damage to
drive line may result.
The cutterhead will operate at 850 rpm when the
powershaft is driven at 1000 rpm. Optimum perfor-
mance will be achieved by maintaining proper PTO
speed. Shear Bolts and Slip Clutches
IMPORTANT Damage can occur to powershaft, when
halves have been separated, and reassem- bled.
Wipe inner surfaces to determine relative
position of lobes (A). Lobes (A) must align with
mating half and join without force.
FEEO S L T P CLIJ TC H E S
Lubricate powershaft. See page 32. CAUTION
After the harvester has been properly hooked up,
replace all ahlelding including master shield if
removed while attaching the tractor hookup.
Raise tractor draft links to prevent damage to
tongue and hookup.
t UT TE R HE AO S HE A R B 0L T S
0 R T V E
After the harvester has been properly hooked up,
secure the jack stand in the raised position.
18
Operation 4 5
Shear bolts and adjustable slip clutches help
protect the harvester from damage.
Operating Height
The two cutterhead drive shear bolts are located
between the feed roll drive gear case and main
drive gear case to help protect the cutterhead,
auger, and fan. If the shear bolts shear, correct
the trouble and replace with 19H1901, 5/16 x
2-inch full-bodied, D quality (three marks on
the head) bolts that will shear in the unthreaded
area. Lubricate shear hub grease fitting with
multipurpose lubricant after replacing shear
bolts.
The corn head operating height is determined by
the position of the axle extension risers and the
adjustment of the attachment lift. The axle
extension risers can be positioned for two
different operating heights, high and low. The
axle extension risers are illustrated in the high
position. The high position is used when
operating in soft field conditions, high ridges,
high ears, and whenever it is important for
maximum harvester ground clearance. Use the top
four mounting holes. The low position is used
when operating in hard field conditions, low
ridges, low ears, or whenever minimum harvester
ground clearance is desired. Use the bottom four
mounting holes. IMPORTANT The axle extension
risers must be used vertically as shown and with
the wheel spin- dles in a forward position. Both
axle extension risers must be in the same
position for harvester and corn head to be level.
The adjustable slip clutches help proteM the har-
vester from damage if a malfunction occurs. If
the slip clutches slip excessively during
operation or repeat- edly when the power is
engaged, adjust the slip clutch springs
immediately. (See page 18 or 28.) Failure to
adiust the slip clutch springs will cause clutch
damage.
Sfiield R8innved FOi' IuStr8iiorI Puifii0989
OMy A ower Bar Shaar BoTta Two shear bolts (A)
help protect the mower bar reel. If the shear
bolts shear, correct the trouble and replace the
bolts with 5/16 x 1-1/2-inch full-bodied,
standard quality (no marks on the head) bolts
that will shear in the unthreaded
area. IMPORTANT Do not use high-strength bolts
or severe damage to the mower bar reel could
result. OPERATING ADJUSTMENTS Two-Row Corn
Head Successful operation of the Mo-row corn head
de- pends greatly upon proper operating
adjustments to meet specific field conditions.
For proper operating adjustments, see the Corn
Head Operator's Manual.
Ground Pressure
Make sure the auxiliary spring with heavy washer
is installed over the regular spring. Then adjust
the ten- sion on the lift spring so the corn head
will float rather than drag over obstructions.
This can be done by raising the unit to its
maximum height and then loos- ening or tightening
the adjusting nut on the front end of the spring.
19
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\ 6 Operation
OPERATING ADJUSTMENT Continued
Row-Crop Unit Ground Pressure Adtust the tension
on the lift spring to reduce the ground pressure
which will help the row-crop unit over
obstructions. This can be done by raising the
unit to its maximum height and then loosening or
tightening the spring adjusting nut.
The left-hand wheel can be reversed to allow
proper alignment with various row spacings. The
righthand wheel may also be reversed when used
with an axle extension.
NOTE The opposite wheel spindle must be in
the same height position io keep harvester
level. Divider Floating Points
Knife Height When operating in rocky fields, or
fields where the crop has been hilled, elevate
the row-crop unit to allow the knile assembly to
clear obstructions. The knife may be raised by
lowering the wheel spindle shafts. This enables
the gatherer points to be lowered to pick up
downed stalks while maintaining the proper
cutting height of the knife (see Wheels and
Spindles, page 21,)
Axle Extensions (2-Row Row-Crop) An axle
extension is desirable when operating in hilled
or ridged crops.
To suit field conditions, adjust for height by
reposi- tioning the adjustable strap in each
divider point.
Aduating Gatherer Feed Roll Drive Chain
NOTE Axle spacers are not necessary when an axle
extension is used for wheel spacing.
Keep the feed roll drive chain adjusted to allow
1/4 to 1-inch (6 to 25 mm) tree movement on the
side of the chain opposite the tightener. Adjust
the chain by loosening the tightener mounting
bolts and moving the tightened. Retighten the
mounting bolts.
With a row-crop unit, install the axle extension
(ar- rowed) on the right-hand side of the basic
harvester. The wheel spindles may be mounted to
the axle ex- tension in either of three height
adjustment positions. The low position will
elevate the knife assembly to clear obstructions
and still keep the gatherer points down for
efficient gathering.
21
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