5-1
SECTION 5
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE CORRECTION
Vibration. PTO shaft or U-joint damage.
Material buildup in cutter bar
drums.
Cutter bar components damaged
or missing.
Inspect and repair PTO shaft.
Remove top cover and clean out
drums.
Inspect and repair components.
Cutter bar not floating. Main frame setting incorrect.
Cutter bar pivot points binding.
Flotation system not engaged.
Flotation spring adjustment.
High stubble kit installed.
Adjust check chains to carry main
frame 457 mm (18 in) (160 mm [24
in] on CAT I 615) from ground and
parallel.
Raise frame height to 483 -- 508 mm
(19 -- 20 in).
Clean and lubricate pivot points.
Install jack pin into flotation spring
upper rod.
Adjust flotation spring tension.
Readjust check chains to carry
main frame 508 mm (20 in) (660
mm [26 in] on CAT I 615 frame)
from ground and parallel.
Machine breaking back too easily. Insufficient tension on breakaway
spring.
Ground speed too fast for crop
conditions.
Insufficient cutter bar flotation.
Tighten breakaway spring until nut
bottoms out.
Reduce ground speed.
Check and adjust flotation system.
Difficulty in obtaining correct angle
on cutter bar.
Lack of adjustment on top link. Reposition top link to rear hole in
main frame.
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