6 - FIELD OPERATION
158
Feeder Chain
Feeder chain tension should be adjusted so there is
0.8 to 3.2 mm (1/32 to 1/8 inch) clearance between
the slat tips and feeder bottom with the feeder in the
operating position. Measure the clearance at the
middle of the feeder house.
The feeder chain slat tip should be running no further
rearward of the feeder face than 38.1 mm (1-1/2
inches). In some cases it may be necessary to add
links to the feeder chain. Maintain a clearance
between the slat tip and the auger flights.
A 6 pitch feeder chain (slat every 6 links) is
recommended for grain and corn Combines.
A 8 pitch feeder chain (slat every 8 links) with
serrated slats is recommended for rice Combines.
Three lower-drum stop positions may be utilized to
help achieve the desired feeding throughout. If your
machine is equipped with a stone retarder drum,
maximum rock protection is obtained with the upper
stop of the drum in its lower position.
Most crops utilize the mid position, although heavier
crops such as corn will require raising the drum to
the upper position. A rock trap is available for most
crops and offers maximum rock protection. See
Conveyor Drum Adjustment in this section of the
manual.
Feeder chain slats are bolted to the feeder chain. DO
NOT reuse the mounting hardware. New hardware
provided with the slat must be installed when the slat
is replaced. Torque the feeder slat retaining bolts to
27 to 34 Nm (20 to 25 lb. ft.). DO NOT overtighten.
A25920
1. MAXIMUM 38.1 mm (1-1/2 INCH) CLEARANCE
2. FEEDER CHAIN
3. CHAIN SLAT
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2
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