MAC215986
306
Revision A
1028063
A
B
Figure 4.62: Main Gearbox Chain Tensioner
5.
If required, turn bolt (B) slightly until retainer plate (A) can
be installed.
1028070
A
B
C
Figure 4.63: Main Gearbox Chain Tensioner Cover
6.
Reinstall chain adjusting cover (B) and gasket (C).
7.
Install four bolts (A). Torque the hardware to 9.5 Nm
(84 lbf
∙
in).
4.6.6
Adjusting Chain Tension
–
Completion Gearbox
The gearbox drive chain tension is factory-set, but tension adjustments are required after the first 50 hours, then every
500 hours or annually (whichever comes first). With the exception of oil changes, the gearbox drive chain requires no other
regular maintenance.
DANGER
To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key
from the ignition before leaving the operator
’
s seat for any reason.
1.
Start the engine. For instructions, refer to the combine operator
’
s manual.
2.
Lower the header fully.
3.
Shut down the engine, and remove the key from the ignition.
4.
Remove the driveline. For instructions, refer to
4.6.1 Removing Driveline Connecting Float Module to Combine, page
