18
Section 5
R
5.5 IMPELLER DRIVE BELT ADJUSTMENT
WARNING
Before removing any guards, shut the engine off
and remove the ignition key. Wait for all moving
parts to come to a complete stop before beginning
work.
1. Remove the belt cover.
2. Check the belt tension by using a belt tension
gauge. The belt should move 1/2" with 14 pounds of
pressure applied.
3. To adjust the impeller drive belt tension, loosen the
four engine mounting bolts. See Figure 5-1.
ENGINE MOUNTING
BOLTS
ENGINE MOUNTING
BOLTS
Figure 5-1. Impeller Drive Belt Tension
4. Loosen the jam nuts on all four adjustment studs.
See Figure 5-2.
5. Back the two adjustment studs on the left side of the
engine (closest to the wheel fender) off of the engine
block enough to allow the engine to move.
6. Using a belt tension gauge, adjust the impeller drive
belt tension by turning the adjustment studs on the
right side of the engine an equal amount of turns.
7. Adjust to achieve 1/2" with 14 pounds of pressure.
8. Turn the two left side adjustment studs in until they
contact the side of the engine block. Tighten all four
jam nuts on the adjustment studs.
9. Tighten the four engine mounting bolts and reinstall
the belt cover.
JAM NUTS &
ADJUSTMENT STUDS
JAM NUTS &
ADJUSTMENT STUDS
CHECK BELT
TENSION HERE
Figure 5-2. Impeller Drive Belt Tension
-NOTE-
Due to initial belt stretch and to prevent the belt
from slipping, check this adjustment after the first
2 hours, 4 hours and 8 hours of operation.
Belt alignment and tension are important for proper
performance of your Scag Truck Loader. If you experience
frequent belt wear or breakage, see your authorized Scag
service center for belt adjustment.