Sec 71 Grain Head
Sec 71 Grain Head
2300 SERIES
AXIAL-FLOW COMBINE
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GRAIN HEADERS
OBJECTIVES
After completion of this section of the text, the student should be able to perform the following:
1. Discuss the 1020 Flexible Cutter Bar Header and its operation as both a rigid and
flexible head. How to change the head from rigid to flexible operation and all the
header height control adjustments for proper operation.
2. Discuss the 1010 Rigid Cutter Header and all the adjustments that can be made to
improve its performance and the two types of reels available and their applications.
3. Discuss the 1015 Windrow Pickup Header and all the adjustments that can be
made to improve its performance.
Keep an eye out for symbols, which will alert you to special information.
IMPORTANT: This symbol will preface a tip that you should definitely not
ignore.
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FEEDER ADJUSTMENTS
The following three adjustments need to be made before a header is properly mounted on a
particular combine:
Grain headers
1010, 1015, and 1020 headers do not have filler adapters to set. Instead, they have
stripper extensions to move to match the edge of the feeder opening. 1644 -2366
require the opening width of the stripper extension to be set at 36-1/2" (927 mm). 1688
– 2388 require an opening of 45-1/2" (1156 mm). Two bolts secure each stripper
extension. Turn the extension in the direction needed to adjust the width.
CORN HEADS
Set the adapter for 33-5/16 inch (846 mm) for models 1440 - 2366.
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GRAIN HEADERS
FEEDER ADJUSTMENTS
Grain Heads
When the header is to be used on an 1440-2366 combine, the extensions must be set for
36.5 inch (927 mm) opening width as shown
When the header is to be used on an 1480-2388 combine, the extensions must be set for 45.5
inch (1156 mm) opening width as shown
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GRAIN HEADER
FEEDER ADJUSTMENTS
Header Leveling
Level the header on Axial-Flow Combines by adjusting the leveling bolt on the combine
feeder housing as follows:
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GRAIN HEADERS
FEEDER ADJUSTMENTS
1. Place the combine on level ground with the header attached. The header
should be leveled.
2. Lower the header to the operating position and check the angle of forward lean.
The vertical back beams of the header should be located 10 degrees forward
of vertical. This can be checked with a simple magnetic angle finder scale
available in any hardware store.
3. If the angle is incorrect, loosen the four bolts on each side of the feeder face
and adjust the length of the draw bolts. Shortening the draw bolt will set the
angle closer to vertical, while lengthening the bolt will increase the angle of
forward tilt.
4. Tighten the mounting bolts to a torque of 90 lb. ft. (122 Nm).
NOTE : After adjusting the feeder adapter, check the clearance between the conveyor chain
slats and the face of the feeder adapter.
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GRAIN HEADER
General Information
The 1020 flexible cutter bar header is available in sizes from 15 to 30 feet. The various sizes
are matched to the different combine sizes offered in the Axial-Flow line. Refer to the chart on
the opposite page for recommended header/combine combinations and row spacing each
would accommodate.
The 1020 header is designed to follow the ground contour while maintaining a particular height
that the operator has selected. This action is accomplished by the automatic header height
control system of the combine. It reacts to signals it receives from runners located at the
bottom of the header platform. This allows harvesting of crops which must be cut close to the
ground in uneven ground conditions. The automatic header height control system protects
both the header and the crop from unnecessary damage because it reacts much quicker than
an operator could.
The cutting range of the header is from one (1) foot below ground level to three (3) to four (4)
feet above ground level depending on the combine size and tire options. This header also
allows the operator to quickly convert from flexible to rigid operation so that a variety of crops
can be harvested.
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GRAIN HEADERS
The following chart shows the header sizes that can be used on the various Axial-Flow
combines. This chart also shows the number of rows, at most common row spacing that can
be accommodated with the different header widths.
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Pickup Reel
The pickup reel is located at the front of the header. It is a six bat design with standard nylon
tines and steel tines as an option. Reel adjustments are very important in reducing grain
shatter and providing a smooth flow of material into the header and combine. To obtain
maximum performance, the reel must be adjusted for the type of crop and crop conditions.
When the pickup reel is correctly adjusted it lifts and holds the crop against the guards until
the knife cuts the stems. The reel then sweeps the cut material into the auger. There are four
main reel adjustments.
• Reel height
• Reel speed
Field conditions, crop conditions, type of crop being harvested and the operator's experience
can effect the performance of the pickup reel. Each adjustment listed can also change the
operational characteristic and desired result of the reel. Correct and final adjustment of each
reel setting can only be done in the field.
IMPORTANT: When assembling the reel pay close attention to the set-up instruction
to get the correct end of the main real tube on the right hand side.
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GRAIN HEADERS
The tine pitch for average crop conditions is 5° rearward from the vertical position.
Increase the tine pitch for down and lodged crops. The more the crop is down, the
more pitch is required to lift and hold the crop for the cutter bar. The pitch of the reel
tines is controlled by the eccentric plate and eccentric adjusting bracket at each end of
the reel shaft. The reel tines can be operated within the following range.
Wait a Minute…How do I pickup a crop that is laying down on the ground. When a
crop is laying down use crop lifters to raise the crop above the cutter bar and leave the reel
rearward to feed the crop into the auger.
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Reel height
The operating height of the reel can be adjusted by the operator using the reel lift
switch. Reel height should be set so the bats are just below the lowest grain heads. If
the reel is too low, the heads will hang across the bat and will be carried around the
reel. If the reel is too high, the bats will shatter the grain. In down crops, set the reel
low enough to lift the crop and sweep the crop through the knife and under the auger.
Minimum reel height must be adjusted to ensure the reel tines do not contact the cutter
bar when the reel is lowered completely. The reel tines must clear the cutterbar by 1”
(25 mm) minimum when the reel is in the lowest position and the cutterbar is flexed to
its highest position, or locked in rigid position. The reel lift cylinders must be
completely retracted before adjusting the minimum reel height. Use the adjusting
tubes on the reel lift cylinders to adjust the minimum reel height. Make sure each end
of the reel is adjusted to the same height.
REMEMBER:
After adjusting the minimum reel height, check the connection of the auger lift links to
the reel arm. Connect the lift link to the rear hole when more than 2" of threads are
showing on the cylinder rod. Connect the lift link to the front hole when less than 2" of
threads are showing.
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GRAIN HEADERS
The hydraulic cylinders that control the reel are set up in a master/slave arrangement.
This allows for level movement of the reel. To synchronize the reel side to side, the
operator should raise the reel up using the reel lift switch and hold it for a few seconds.
This will charge the slave cylinder so that the reel will be level. It may be necessary to
loosen the plug at the top of the slave cylinder to release any trapped air.
If equipped with the hydraulic reel fore and aft option, the operator can adjust the reel
with the reel fore and aft switch.
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GRAIN HEADER
Reel speed
Reel speed is adjustable so that the reel will deliver the crop to the cutter bar and
auger at a rate that is consistent for the combine ground speed. It should be just fast
enough to sweep the crop under the auger in a smooth even flow. If the reel speed is
too fast it can cause the bats to shatter the grain or can cause the crop to wrap around
the bat. Normally, the reel speed (rpm) is set at approximately 10 times the combine
ground speed (mph). Example: 3.5 mph = 35 rpm.
The reel speed is varied by changing the rate of fluid flow to the hydraulic motor which
turns the reel drive sprocket. A reel speed control switch allows the operator to select
the speed he/she wants the reel to turn. Reel speed can be varied from 0 to 59.5 rpm
with the 17 tooth drive sprocket.
For optimum performance, the automatic reel-to-ground speed system will allow the
reel speed to be controlled automatically. This system will maintain a consistent ratio
between the reel speed and the combine ground speed.
NOTE: See Electrical Section (Section #3) for information on automatic reel-to-ground speed
control.
Dividers
The flexible cutterbar header is equipped with spring loaded rear dividers, wing divider
extensions and tube divider extensions. The dividers help lift and divide the crop ahead of the
cutter bar. This provides a smooth crop flow to the reel and cutter bar and gently directs the
grain outside the cutting width around the ends of the header. The wing divider extensions are
recommended for use in rowed crops when cutting at ground level in flexible cutter bar
operation. The tube divider extensions are recommended for use in small grain crops when
cutting in rigid cutter bar operation.
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GRAIN HEADERS
The upper, outer and inner wings of the wing divider extension are adjustable.
• Outer Wing - The outer wing can be adjusted in or out and up and down. Adjust the wing
out only far enough to get a smooth flow of uncut crop to the outside of the rear divider. If
the wing is out too far it can push the uncut crop down. Adjust the wing up or down
depending on crop height. In most conditions, adjust the outer wing lower than the inner
wing.
• Inner Wing - The inner wing can be adjusted in or out and up or down. Adjust the wing to
provide a smooth flow of material to the reel. In down or leaning crops, adjust the wing to
lift and deliver the crop to the reel. The plastic tubes at the rear of the wing can be
adjusted in or out. Adjust the plastic tubes to guide the uncut crop between the 1st. and 2nd
fingers of the reel.
• Upper Wing - The upper wing can be adjusted up or down. Adjust the upper wing to
assist the inner and outer wings in lifting down and leaning crops to provide a smooth flow
of material into the reel and knife area.
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GRAIN HEADER
Cutter Bar
There are three different types of cutter bars available for the 1020 headers:
¾ A 1-1/2" knife that is recommended for use in down crops, rice and soybeans. The
1-1/2" knife section has four serrated edges. It moves 3" with every knife stroke.
This allows four (4) cuts per stroke minimizing lateral movement of the stalk and
decreasing shatter loss. This allows the operator to harvest at a higher ground
speed while decreasing header losses.
¾ A 3" knife is recommended for small grains and sunflowers. A 3" knife has two
serrated edges. It moves 3" with every knife stroke. This allows two (2) cuts per
stroke. The 3" knife requires less maintenance to operate.
¾ Modular knife. The modular knife is available through the parts system and is
shipped in short sections, that are bolted together to build the required length.
To ensure good cutting action it is important that each style knife be properly adjusted,
including guard alignment, proper adjustment of the knife hold down clips and knife head.
There is a HIGH ARCH hold down for the left end of the 3" knife to maintain cutter bar
clearance.
3” Knife Section
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GRAIN HEADERS
High Arch Hold Down Clip Kit For 1 1/2” Knife System.
Kit Part Number B92983
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GRAIN HEADERS
Knife Drive
The LH end of the knife is retained to the knife drive gear box by a pivoting ball joint to ensure
correct knife to guard angle relationship. The knife is driven by a pulley and spring-loaded belt
from the header drive shaft. Standard drive speed for headers with 3" knives is 500 rpm.
Standard drive speed for headers with 1-1/2” knives is 400 rpm. Available drive pulleys are
listed below. Check parts catalog for corresponding pulley part numbers.
400 rpm pulley (standard with 1-1/2 inch knife) ........... 8.3" (212 mm) O.D.
460 rpm pulley (optional with 1-1/2 inch knife) ........... 9.6" (245 mm) O.D.
500 rpm pulley (standard with 3 inch knife).................. 10.5" (267 mm) O.D.
600 rpm pulley (optional with 3 inch knife).................. 12.5" (318 mm) O.D.
NOTE: Different lengths of belts are required with certain pulley changes. Refer to the parts
book for information.
The function of the knife drive, also known as the knife drive gear box, is to convert rotary
motion from the driven pulley to reciprocal motion at the knife through the use of an eccentric
shaft.
The gear box contains two shafts: Wobble shaft and Yoke assembly. The wobble shaft is
threaded and the cast driven pulley is attached through a tapered fit and keyed to the shaft.
The wobble shaft assembly is supported with two (2) needle bearings. The shaft passes
through the two (2) wobble needle bearing which is then attached to the yoke assembly by two
(2) tapered roller bearings. This nut is tightened to achieve the proper bearing preload, then
staked. The wobble bearing housing is attached to the wobble drive yoke assembly by two
wobble drive pins inserted into trunnion bearings bolted to the yoke. The yoke is attached to
the crank arm through a bolt, metal washer and a felt (dust) washer. The crank arm then
transmits the reciprocal motion to the knife.
The service manual outlines repair procedures for the knife drive gear box.
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GRAIN HEADER
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GRAIN HEADERS
The flexible header is equipped with adjustable flotation springs which help balance the weight
of the flexible cutter bar to control the amount of ground pressure on the cutter bar skids. Leaf
springs are located on the bottom of the header (quantity will vary with header size). A coil
spring is located on the LH end runner.
NOTE: In soft or moist (muddy) soil conditions, reduce cutter bar ground pressure by
tightening leaf springs.
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GRAIN HEADER
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GRAIN HEADERS
Grain Lifter
Grain lifters can be installed on the cutter bar to assist in picking up down and tangled grain.
They must be ordered through service parts and bolted to the bottom of the guards.
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GRAIN HEADER
Auger
The auger is a very important component in getting a smooth, high capacity flow of material
through the header. The auger moves the cut material from the knife area to the center of the
header and delivers it to the combine feeder. The adjustment of the auger is very important
for maximum performance.
The header uses a 23.6" diameter floating type auger with 4.72" flighting. This allows greater
capacity of the auger with less chance of plugging. The auger is driven by a chain and
sprocket coming off the right hand header drive shaft. There is a slip clutch that will limit the
auger to 180 to 225 lb. ft. of torque.
The auger also has a lift feature that allows the auger to be lifted up when clearing a plug. To
use the lift feature, the operator lifts the reel completely up. Lift links, connected from the reel
arm to the auger, lift the auger up providing additional clearance under the auger for material
to pass through the header. Once the plug is removed, the operator lowers the reel back to
the original position. In the normal operating range, the auger height is not affected by the reel
positioning.
3. Auger speed
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GRAIN HEADERS
For most crop conditions adjust the auger for a clearance of 1/2" (12.7 mm) or less
between the auger and header bottom. For heavy or bulky crops, the clearance can be
increased up to 1" (25.4 mm) to maximize header capacity. For rice, light crops or any
crop with tough green straw, adjust the auger as close as possible to the header
bottom. This adjustment is made by moving the lower draw bolt on each side of the
header to obtain the necessary clearance. This adjustment can affect the adjustment of
the auger drive chain.
The header is equipped with fixed strippers, adjustable strippers and stripper
extensions located on the back wall of the header. An adjustable stripper and stripper
extension is mounted on top of the fixed stripper on each side of the feeder opening.
The auger to stripper clearance is 1/8" (3 mm) for normal operations. However, in
some crop conditions wider clearances of 1" (25 mm) or more are acceptable. In
general, crop carry-over at the auger will be reduced by decreasing the auger/stripper
clearance. The strippers have slotted holes to permit adjustment.
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GRAIN HEADER
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GRAIN HEADERS
Auger Speed
Changing the auger speed for different crop conditions can increase header capacity,
improve movement of the crop to the feeder and reduce grain shatter in the auger
area. Increasing auger speed in heavy or bulky crop conditions will increase header
capacity. Reducing auger speed in light, short crop conditions will reduce grain shatter
in auger area and will improve crop flow to the feeder. Auger drive speed can be
changed by using one of the following auger driven sprockets.
The 22.5' and 25' headers come with short 4.5" extensions standard, they should be
removed and additional auger finger installed when these headers are used on 2366-
2388's.
If a 30' header is used on a 2366 the short 4.5" extensions will have to be added, they
are not standard equipment. When adding the extensions be sure to remove the auger
fingers that will be behind them.
When adding the long flight extensions the short 4.5" extension will also have to be
installed.
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GRAIN HEADER
To adjust the maximum extended position of the fingers, loosen the two auger finger
tube bolts on left-end of the header. Rotate the tube (by using a rotor rocking wrench
in the slot) clockwise to lower fully extended finger position, and counterclockwise to
raise fully extended finger position.
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GRAIN HEADERS
Rigid Operation
To prepare the header for rigid operation, the operator must perform the following steps after
installing the header on the combine (header level and properly positioned at 10°):
NOTE: Cutter bar lockout tubes are a field-installed option which provide extra support to the
cutter bar when used in rigid operation. They are recommended for use in rough ground
conditions.
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GRAIN HEADER
FLEXIBLE OPERATION
To prepare the header for flexible operation, the operator must perform the following steps
after installing the header on the combine (header level and properly positioned at 10°):
NOTE: Before operating the header in the flexible mode, check the adjustment of the cutter
bar flotation springs and header height indicator position.
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NOTES
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GRAIN HEADERS
The flexible header is equipped with adjustable flotation springs that help balance the weight
of the flexible cutter bar to control the amount of ground pressure on the cutter bar skids. Leaf
springs are located on the bottom of the header (quantity will vary with header size). A coil
spring is located on the LH end runner.
NOTE In soft or moist (muddy) soil conditions, reduce cutter bar ground pressure by
tightening leaf springs.
Sensing Linkage
There are two different styles of sensing linkages, cable or solid linkage, used to transmit the
cutter bar movement to the combine, they will both be explained in the following pages.
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GRAIN HEADER
Cable Sensing
The following illustration shows the correct adjustment and orientation of the header height
control system components. The information and specifications shown is with ALL cutter bar
runners in the Maximum DOWN Position. The flotation springs may have to be backed off to
ensure that the cutter bar remains in the FULL DOWN position. Periodically check the height
control system for correct adjustment and service as needed. This will ensure good
performance of the height control system.
IMPORTANT: Refer to the Electrical Section (Section #3) and service bulleting NHE
SB 050 98 and NHE SB 37.1 98 for information on automatic header height control operation.
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GRAIN HEADERS
Periodically raise the header fully, lower the safety stand on the header lift cylinder and pin the
stand in place. Inspect the height control components making sure the sensor tube is straight
and free to rotate. Make sure the feelers are in contact with the top of all runners with the
cutter bar in the maximum down position. Make sure the sensor linkage, feelers and sensor
tube is clear of all foreign material.
NOTE Failure to keep all feelers in contact with the runners will cause poor automatic
header height control response.
To adjust the feelers, loosen the clamp bolts and rotate the feeler on the sensor tube until the
feelers are in contact with the top of the runners, with the runners in the maximum down
position.
NOTE Do not permit the height control sensor tube to rotate while adjusting the position of a
feeler.
When ever working on the sensing system on the header make sure the sensor tube rotates
freely and follows the movement of the cutter bar. A spring kit, 341196A1, has been added to
the right hand end of the sensor tube to hold the feelers against the runners.
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GRAIN HEADER
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GRAIN HEADERS
NOTE Adjusting automatic header height position with the control knob has a slight affect on
guard angle tilt and actual cutting height.
To check and adjust the position of the indicator pointer, raise the header until the cutter bar is
approximately 6” off the ground. (Make sure the runners and cutter bar are in maximum down
position.) Check position of the pointer. The position of the pointer must be just below the top
mark on the indicator scale. To adjust the position of the pointer, loosen the pointer clamp
bolt. Put the pointer in the correct position and tighten the pointer clamp bolt.
Make sure the indicator does not contact or rub the header side sheet, which could prevent the
sensor tub from rotating freely.
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GRAIN HEADER
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GRAIN HEADERS
No. System
displayed: Configuration:
0 M RTC
1 M RTC HT
2 M RTC HT Float
M = Manual RTC = Return-to-cut HT = Automatic Header Height Control
In order to check this, it will be necessary to enter the header controller calibration
procedure. (See section 3 of the manual)
It will not be necessary to complete the entire header controller calibration
NOTE procedure. You may exit after checking what system configuration has been
calibrated into the machine. To exit the calibration procedure, cycle the reel
auto/manual switch.
2) With the 1020 header attached to the combine, plug in the header potentiometer to the
connector on the left front corner of the feeder house.
3) Start the combine, allow the instrumentation lights and audible alarm to self test. Then
lower the header to the ground and hold the lower button for two seconds. This will
calibrate the header height display (if equipped), the header height sensor, and the
sensitivity control for the float sensor (if equipped). Then fully raise the header. It is
normal if the header stops at 2/3 of maximum height, this indicates that a float sensor is
present and that the header controller is taking a float sensor reading. The operator can
then push the raise button again to raise the head to full raise position.
4) Position the header selector switch to the “HT” position.
5) Rotate the header position potentiometer fully counter clockwise.
6) Rotate the sensitivity control potentiometer to the mid-position (12 o’clock position).
7) Engage the separator and feeder.
8) MOMENTARILY press and release ( < (less than) 0.6 seconds) the header lower switch.
9) The header should lower to the ground. If the header lowers to the ground, the Automatic
Header Height Control system is enabled. The optional header height display, if equipped,
will show an arrow UP and DOWN and typically a number will appear. It may be
necessary to rotate the height knob fully clockwise, then fully counter clockwise.
10) When the header position potentiometer is positioned fully counter clockwise the height
indicator pointer on the header will be positioned just above the bottom mark.
11) When the header position potentiometer is positioned fully clockwise the height indicator
pointer on the header will be positioned just below the top mark. This system will require
more cutter bar float before the system will make a height change.
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GRAIN HEADER
The header height potentiometer (on the head) is a three wire potentiometer.
• The red wire (connector pin A) is the supply voltage to the potentiometer from the header
controller.
• The light blue/white (connector pin B) is the signal voltage from the potentiometer to the
header controller.
• The black wire (connector pin C) is the ground side of the potentiometer for the header
controller.
TROUBLESHOOTING
If a reading below 2.00 or above 3.00 Volts D.C. is obtained, it will be necessary to adjust the
header height potentiometer (on the head). The header height potentiometer is attached to
the potentiometer mounting strip, which in turn is attached to the header main frame. The
mounting strip has slotted holes to accomplish this adjustment. Loosen the two bolts and nuts
to move the mounting strip, either up or down to obtain the 2.00 - 3.00 Volts D.C. range.
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GRAIN HEADERS
Linkage Sensing
The following illustration shows the correct adjustment and orientation of the linkage type
height control components. Periodically check the height control system for correct
adjustment and service as needed. This will ensure good performance of the height control
system.
1. Potentiometer
2. Upper Pivot Support
3. Upper Rod;
Length Center Of Ball Socket
to Ball Socket: 455 mm (17.9“)
4. Lower Pivot Support
5. Lower Rod;
Length Using A Straight Line
Center Of Ball Socket to Ball
Socket: 264 mm (10.4“)
6. Extension Harness
Refer to installation
instructions RAC6-12240 for
addition information.
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GRAIN HEADER
Linkage Sensing
Potentiometer Mounting
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GRAIN HEADERS
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Knife Drive Belt Tension -- Set spring Lubricate all fittings with Case IH 251
length to 139.7 mm (5.5”) HEP or No. 2 Multi-purpose Lithium Base
Grease.
Clearance between hold down & knife
gear 1.52 - 2.28 mm (.060” - .090”) Lubricate the Pick-up Reel Tines (steel) &
Header Height Control Tube Support
Knife Guard Alignment and knife hold Points -- Use light engine oil.
down clip clearance -- .38 - .76 mm
(.015” - .030”) Adjust Reel position:
Auger Adjustments: - Check that pick-up tines clear knife with
- Retractable finger timing. cutter bar in highest flex position.
- Auger flight to bottom clearance -- - Reel tine pitch
3 mm (1/8”) with cutter bar in highest flex
position. Check Reel Safety Stands
- Auger Stripper - Header Shields in place.
Auger Slip Clutch -- Set at 180-225 lbs. ft. Safety Shields in place.
Not adjustable, factory setting
Pin #
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GRAIN HEADERS
General Information
The 1010 rigid cutter bar header is available in sizes from 15 to 30 feet. The various sizes are
matched to the different combine sizes offered in the Axial-Flow Series. Refer to the chart on
the opposite page for recommended header/combine combinations and row spacing each
would accommodate.
The 1010 header is designed to harvest small grain crops that are not harvested close to the
ground. If the situation arises that the header is required to harvest a crop that is close to the
ground, there is an optional field-installed automatic header height control package available.
The cutting range of the header is from 1 foot below ground level to 3 to 4 feet above ground
level depending on the combine size and tire options.
NOTE Information on the next several pages will only take into account those items on the
1010 rigid header that are DIFFERENT from the 1020 flexible cutter bar header.
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GRAIN HEADER
Reel
Two types of reels are available, bat reel (five bat design) and pickup reel. The pickup reel is
a six bat design and can be equipped with either steel or nylon tines. Nylon tines are not
recommended for use in rice.
The bat reel is well suited to standing small grain crops. With proper adjustment, it will deliver
a smooth flow of crop from the knife to the auger.
The pickup reel is particularly efficient for operation in "down" or badly tangled crops. When
adjusted and operated properly, it will lift and hold the crop against the guards until cut, then
sweep the cut material evenly onto the header. (See 1020 section for further information on
pickup reel)
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GRAIN HEADERS
AUGER SPEEDS
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GRAIN HEADER
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GRAIN HEADERS
Operation of the header height control is then identical to 1020 flexible cutter bar header.
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GRAIN HEADER
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GRAIN HEADERS
General Information
The 1015 windrow pickup header is available in two widths, 11 and 13 ft. The pickup header
is designed to directly pickup and feed cut and windrowed crops.
NOTE Information on the next several pages will only take into account those items on the
1015 windrow pickup header that are DIFFERENT from the 1020 flexible cutter bar
header.
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2300 Series Axial-Flow Combine
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GRAIN HEADER
Belt Pickup
The pickup on the 1015 header can be adjusted for two operating positions depending on the
windrow size. The high and rear position is for smaller windrows, especially grasses. The low
and forward position is used for larger windrows, especially small grains.
1. Belt speed
2. Belt angle
4. Belt tension
5. Grain deflector
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GRAIN HEADERS
Belt speed
The pickup belt is hydraulically driven through a 4-1/2" diameter roller. The belt speed
is controlled by the reel speed switch and control knob on the right-hand console. The
belt speed is variable from 0 to 510 ft/min (2.59 m/s) with the standard 21 tooth
sprocket on the hydraulic motor.
Operate belts fast enough to pickup the crop without pushing it ahead of pickup, but
not so fast that the teeth tear into windrow and shatter the grain. An optional automatic
belt speed control increases or decreases the belt speed as ground speed changes.
An optional 32 tooth sprocket for the hydraulic motor is available which allows for faster
belt speeds (0 through 776 ft/min) in very light windrows where ground speed of
combine will exceed 6 mph (9.7 km/h).
Belt angle
The belt angle relative to the ground changes as the header is raised or lowered. In
good windrows, the pickup works best with center of the rear roller about 14" (356 mm)
above the ground. In poor windrows, in which the straw is imbedded in short stubble,
the pickup works best with the rear roller closer to the ground. This allows more
fingers to comb the stubble.
In rocky conditions the belt angle can be increased to near maximum to prevent rocks
from being carried into the header.
The teeth to ground clearance is regulated by moving the gauge wheel assemblies. To
change ground clearance, move wheel supports up or down on square tube. Six
positions are available. In tough or viney conditions, removing the outer row of pickup
teeth can reduce wrapping on roller ends.
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2300 Series Axial-Flow Combine
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GRAIN HEADER
Belt tension
The belt tension must be uniform along the length of the roller. Excess belt tension
causes undue wear and can force the belt to climb the separating discs.
The belt tension is adjusted by moving the front roller by means of a draw bolt on each
end of the pickup. Make sure belts are equally tensioned at both ends.
Grain deflector
The grain deflector hold down helps keep the crop against the pickup teeth. It is
especially helpful in windy conditions.
The deflector should be adjusted to clear the windrow by 1 to 3 inches (25 to 76 mm).
To adjust, loosen the bolts on each end of the deflector and pivot deflector to the
desired height. Adjustment can also be made by moving end support brackets to
another mounting hole and/or moving grain deflector tube to another mounting hole.
(Four positions available.)
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GRAIN HEADERS
• High and rear position. This position is for smaller windrows, especially grass, providing
better feeding because of the small distance between belts and auger, with less grass
seed loss.
• Low and forward position. This position is for larger windrows, especially small grains,
providing better feeding of crop under auger. Install endsheet filler plates when pickup is
in low and forward position.
Two sets of holes (three each) are supplied in header frame end sheets to change
positions of pickup unit.
®
2300 Series Axial-Flow Combine
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GRAIN HEADER
AUGER
Auger clearance to header bottom and (Same as 1020 and 1010) Spring-loader
stripper: floating auger.
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