ADJUSTMENTS AND MAINTENANCE
5-16
20 CLEANING FAN VARI-DRIVE BELT --
Figure 29
Checking
Start the engine and engage the threshing
mechanism.
Move the fan variator to MINIMUM.
Stop the engine and check clearance X between
the sheaves on the fan shaft.
Clearance X should be minimum 1 mm.
Move the fan variator to MAXIMUM.
Clearance Y should be minimum 1 mm.
Adjustment
Adjust with nut S or T.
The factory setting is:
S Maximum 54 mm belt depth on the driven
sheaves.
S Minimum 41 mm belt depth on the drive
sheaves.
In the case of a stretched belt, the belt loop
around the sheaves may be allowed to extend
maximum 3 mm beyond the edge of the sheaves.
29
51523
X
S
T
Y
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