Troubleshooting Guide
Engine/Motor and Drive Pulleys Alignment
Troubleshooting Guide
50HD07doc072310
6-16
6
6.6
Engine/Motor and Drive Pulleys Alignment
WARNING!
Before performing service near moving parts
such as blades, pulleys, motors, belts and chains, first turn
the key switch to the OFF (#0) position and remove the key.
If the key is turned on and moving parts activated, serious
injury may result.
WARNING!
Do not for any reason adjust the engine drive
belts or belt support bracket with the engine running. Doing
so may result in serious injury.
1.
Install and properly tension the drive belt (
).
2.
With the clutch handle disengaged, use a straight edge to check the alignment of the pul-
ley on the engine/motor to the alternator pulley. Loosen the bushing on the engine/motor
pulley and adjust if necessary until it is aligned with the alternator pulley.
3.
With the clutch handle disengaged, use a straight edge to check the alignment of the
engine/motor pulley to the main drive pulley. Loosen the bushing on the drive pulley and
adjust if necessary until it is aligned with the engine/motor pulley.
4. (E25 Only):
Check that the engine/motorpulley is also square with the drive pulley. If nec-
cessary, loosen the engine mounting bolts and cock the engine until the pulley is square
with the drive pulley. Retighten the engine mounting bolts.
5.
Check that all engine mounting bolts and pivot bushing clamps are tight.
6.
Engage the clutch handle and recheck the pulley alignment. Adjust if necessary.
7.
If any pulleys were adjusted, recheck the drive belt support(s) and adjust if neccessary
(