ADJUSTMENTS AND MAINTENANCE
5-10
14 UNLOADING SYSTEM DRIVE CHAIN --
Figure 22
Tension the chain with sprocket Q.
15 DRUM VARI-DRIVE BELT
a) Standard drum variator drive [if installed]
Figure 23
The tension of the drum vari-drive belt is cor-
rect when spring H is adjusted to the length
of the indicator plate G.
Checking variator adjustment
Start the engine and engage the threshing
mechanism. Move the drum variator to MINI-
MUM. Stop the engine.
Distance X should be minimum 1 mm (clear-
ance measured between driven sheaves).
Move the variator to MAXIMUM.
Distance Y should be minimum 1 mm (clear-
ance measured between drive sheaves).
22
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