Great Plains ADC1150 Operator Manual - Manual (Page 64)

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Section 4 Adjustments
Model 1150 1995 - 1997 167-058M 7/28/10
Great Plains Mfg., Inc.
Drive System Adjustment
Main Drive Chain from Wheel to Clutch
1.
Make sure both sprockets are aligned. If they are not,
loosen the set collars holding the clutch in place and
move the clutch over until they are aligned. Re-tighten
the set collars.
2. Check the tension. Front span of the chain should
have 1” slack at the midpoint - do not overtighten, refer
to Figure 4-19. Loosen the nut (#1) that holds the tight-
ener (#2) and rotate the tightener to adjust. Tighten
the nut.
Chain from Speed Change to Gearbox
1.
Check the tension. Chain should have 5/8” slack at the
midpoint, refer to Figure 4-20. Loosen the bolt holding
the speed change sprocket and move the sprocket in
slot to adjust. It may be necessary to adjust the chain
from clutch when moving the speed change.
Drive Chain from Clutch to Speed Change
1.
First, check the chain from the speed change to the
gearbox and adjust it as needed.
2. Check the tension. The lower span should have 1” to 1
7/8” slack at the midpoint, refer to Figure 4-21. Loosen
the bolts holding the idler sprockets and move in slots
to adjust. Re-tighten the bolts.
Tip Angle Adjustment (Spring Reset)
Figure 4-18
14539
Main Drive Chain Tnesion
Figure 4-19
14540
Speed Change to Gearbox Tension
Figure 4-20
14541
Clutch Shaft to Speed Change Tension
Figure 4-21
14544