Case IH AXIAL-FLOW 2577 Operator's Manual page 174

Feeder Conveyor Adjustments
Chain Adjustments
Keep the feeder conveyor chain adjusted correctly at
all times. Inspect the chain for correct tension after
the first 50 hours of operation and at regular intervals
thereafter (see Feeder Conveyor Chain Adjustment
in this manual).
Conveyor Drum Fore/Aft Adjustment
The fore/aft position of the conveyor drum must be
adjusted correctly to obtain correct feeding of
material from the header auger to the feeder. The
position of the drum must be adjusted for a
maximum clearance (1) of 38 mm (1-1/2 inch) from
the conveyor chain slat (3) to the feeder face (4).
NOTE: In short crops the 38 mm (1-1/2 inch)
maximum may need to be reduced.
The drum is adjusted fore and aft with the conveyor
chain adjusting bolts (5) on each side of the feeder
and by adding or removing chain links in the
conveyor chain (2).
Before adding or removing chain links, check the
feeder conveyor chain for correct tension (see
Feeder Conveyor Chain Adjustment for complete
instructions).
When the chain tension is correct, add or remove
links from the conveyor chain as necessary to obtain
the correct clearance. After adding or removing chain
links, the chain tension must be adjusted again.
6 - FIELD OPERATION
IMPORTANT: Be sure to adjust the chain evenly on
both sides to prevent excessive wear on both chains
and sprockets.
The conveyor chain tension is adjusted by moving
the feeder drum forward or rearward.
160
1
4
1. 3/8 mm (1-1/2 INCH) CLEARANCE
2. FEEDER CONVEYOR CHAIN
3. CHAIN SLAT
4. FEEDER FACE
5
1. CONVEYOR CHAIN ADJUSTING BOLT
2
3
A25920
RD00F043