MacDon FD70 for Combine Operators - Manual (Page 163)

SECTION 10. MAINTENANCE AND SERVICING
Form 169006
161
Revision D
10.9.2 Auger Drive Chain Adjustment
The auger is driven from adapter drive system by
a sprocket that is attached to side of the auger.
To adjust chain tension, proceed as follows:
CAUTION
Stop engine, and remove key from ignition
before leaving Operator's seat for any reason.
A child or even a pet could engage an idling
machine.
a. Detach combine from adapter. Refer to Section 7
HEADER ATTACHMENT/DETACHMENT.
b. Loosen nut (A), and remove clip (B) and cover
(C).
c. Loosen bolt (D) on idler sprocket.
d. Rotate auger in reverse to take up slack in lower
strand of chain (E).
e. Push idler sprocket down to eliminate remaining
slack in upper strands.
f. Rotate auger back and forth to check slack, and
repeat above step if necessary. A slight amount
of slack is acceptable.
NOTE
Do not use excessive force on idler to
tighten chain.
g. Tighten idler bolt (D), and torque to 150 ft·lbf
(203 N·m).
h. Re-install cover (C) with clip (B), and tighten nut
(A).
C
B
A
D
E
C
B
A