5adjusting tension on gearbox drive chain, Adjusting tension on gearbox drive chain, 5 adjusting tension on gearbox drive chain – MacDon FD75 OM User Manual
Page 299: Caution
6.6.5
Adjusting Tension on Gearbox Drive Chain
The chain inside the gearbox has been tensioned at the factory and requires no maintenance, other than to adjust
the tension every 500 hours or annually. To adjust chain tension, follow these steps:
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.
1.
Lower header, stop engine, and remove key.
2.
Remove chain adjusting cover (A). Be sure gasket (B)
is not damaged.
3.
Remove retainer plate (C).
4.
Tighten bolt (D) to 60 in·lbf (6.8 N·m), Then back off
bolt 1-2/3 turns.
5.
Reinstall retainer plate (C).
6.
Reinstall chain adjusting cover (A) and gasket (B).
Torque hardware to 84 in·lbf (9.5 N·m).
Figure 6.58
A - Cover
B - Gasket
C - Retainer Plate
D - Bolt
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