Maintenance
Up/Down System
Maintenance
doc072619
6-6
6
See Figure 6-3.
Adjust the drive belt support as needed.
1.
Loosen the adjustment bolt.
2.
Position the bracket so that the prong is close to, but
does not touch
, the drive belt with the
clutch handle engaged.
3.
Retighten the adjustment bolts 25-27 pound feet (34-37 newton meters).
CAUTION!
Do not over-tighten the drive belt. Damage to the engine may
result.
6.9
Up/Down System
WARNING!
Before performing service near moving parts such as blades, pul-
leys, motors, belts and chains, first turn the key switch to the OFF (#0) position
and remove the key. Failure to follow this may result in serious injury or death.
ADJUST THE UP/DOWN CHAIN TENSION AS NEEDED.
1.
Measure chain tension with the head all the way to the top of the vertical mast.
WARNING!
Always secure the saw head with a chain with at least 1000lbs.
working load capacity before adjusting the up/down chain. The cutting head
may fall, causing severe injury or death.
2.
Locate the chain adjusting bolt at the bottom of the mast.
3.
Loosen the nut on the sprocket bolt and move the sprocket down until there is about 1" (2.5 cm)
total deflection in the center of the chain with a 5 lb. (2.3 Kg) deflection force.
FIG. 6-3
150256-08
Drive Belt Support
Bracket
AR
AR
