58
5.2.3 DRIVE BELT TENSION AND ALIGNMENT
A V belt transmits rotational power to the ro-
tor. It must be kept properly tensioned and the
pulleys aligned to obtain the expected perform-
ance and life.
To check the tension and alignment, follow this
procedure:
1. Clear the area of bystanders, especially
small children.
2. Turn machine off, stop engine, remove ig-
nition key and wait for all moving parts to
stop.
3. Remove guard over belt.
4. Push on the belt in the center of the span.
The belt should deflect approximately 1
inch (25 mm) when pushed on with about
10 lbs. force to be properly tensioned.
5.
To adjust belt tension:
a. Loosen engine mounting bolts.
b. Move the engine to the required posi-
tion to set belt tension.
c. Set pulley alignment.
d. Tighten mounting bolts to their speci-
fied torque.
6.
To replace belt:
a. Move engine to its loosest position.
b. Replace belt.
c. Set pulley alignment.
d. Tighten engine mounting bolts to their
specified torque.
e. Check frequently during the first 10
hours and set belt tension as required.
Fig. 53 BELT DRIVE SYSTEM
IMPORTANT
The belt should not slip when the chipper
is being used.
Belt System
a. Engine Mounting Bolts b. Adjusting Bolt
a
b
a
