Adjusting Auger Drive Chain Tension - MacDon FlexDraper FD1 Series Operator's Manual

5.7.3 Adjusting Auger Drive Chain Tension

The auger is chain-driven by the float module drive system sprocket attached to the side of the auger.
DANGER
To avoid bodily injury or death from unexpected start-up of machine, always stop engine and remove key
from ignition before leaving operator's seat for any reason.
1. Shut down the combine, and remove the key from the ignition.
2. Detach the header from the combine. Refer to
3. Loosen jam nut (B).
4. Loosen idler nut (A) slightly to allow idler to move
by hand.
5. Rotate auger in reverse to take up slack in upper strand
of chain.
6. Turn adjuster thumbscrew (C) clockwise to move the
idler sprocket until it is finger tight only. Then back off
1-1/2 turns.
NOTE:
Do NOT overtighten.
7. Tighten the idler nut (A) and torque to 258–271 Nm
(190–200 lbf∙ft).
8. Check chain tension. Refer to
Drive Chain Tension, page
214683
MAINTENANCE AND SERVICING
4 Header Attachment/Detachment, page
5.7.2 Checking Auger
421.
Figure 5.54: Auger Drive (Left Side)
423
307.
C
B
A
Revision A