Echo Bear Cat 75360 2002 - Manual (Page 20)

Page 14 Bear Vac Operator’s Manual
Service & Maintenance
TIGHTENING THE BELT(SELF PRO-
PELLED MODELS ONLY)
Check the condition of the drive belts annually or every 25
hours of operation, whichever comes first. Check also to
make sure the belt is tightened to the proper tension. To
tighten belt:
1. Take off the belt guard by removing the 11/32” hardware.
2. Loosen the three 1/4” adjustment bolts connected to the
Bear Vac transmission.
3. Loosen the 1/4 bolts on the side of the machine con-
nected to the 1/2” flange bearing.
4. With the five bolts loosened the belt is free to move.
5. Tighten the belt to the desired position (1/4” of deflection)
and by moving the transmission towards the rear of theunit.
Retighten all loosened bolts to proper torque.
6. The chain will need to be readjusted after the belt is tight-
ened due to movement of the 1/2” bearing flange.
7. Tighten the chain by first loosening the four 1/4” bolts on
both sides of the axle assembly.
8. After the bolts are loosened the axle is free to be lowered.
Lower the axle until the chain has 1/4” of deflection.
9. Retighten the four 1/4” bolts to torque.
10. Recheck the tension on the belt. Repeat procedure if
necessary.
11. Replace the belt guard on the machine and secure with
11/32” hardware.
1. Service engine according to engine owners manual.
ADDITIONAL SERVICE AND MAINTENANCE TIPS
2. Every 10 hours of operation, all bolts and other fasteners
should be checked for correct torque.
11/32" X 7/8"
SCREW
BELT GUARD
DRIVE CHAIN
DRIVE BELT
NOTE: FOR SELF PROPELLED MODELS ONLY
DRIVE
PULLY
DRIVEN
PULLEY
1/4" TO 1/2"
DEFLECTION
IS ACCEPTABLE
DRIVE
BELT AND CHAIN
TENSION
Fig. #12, Checking belt tension
LOOSEN
LOOSEN
BOLTS
WHEEL REMOVED
FOR CLARITY ONLY
LOOSEN
BOLTS
Fig. #11, Adjusting the belt