Operator's Manual

16
1. Remove the bolt and washer securing the flywheel
housing cover, swing it forward to expose the flywheel.
2. Rotate the flywheel using a stick until the bolts and lock
nuts attaching the cutter blades to the flywheel are
accessible (Figure 31).
Figure 31
1. Flywheel 2. Blade
3. Sequence for tightening (3-1, 3-2, 3-3)
3. Reverse the cutting edge of the blades or remove the dull
or damaged cutter blades. Visually inspect the flywheel
slots for damage. The blade mounting areas must be clean
so the blades mount flush against the flywheel.
IMPORTANT: It is extremely important to consistently
maintain the 35-degree angle for proper chipping
performance.
4. Install reversed, new, or sharpened blades and finger
tighten the bolts and lock nuts to hold the blades to the
flywheel.
5. Tighten the center screws and nuts first, then tighten the
outer screws and nuts, and finally tighten the inner screw
and nut. See sequence for tightening (Figure 31).
6. Torque the blade bolts to 37-48 ft. lbs (51-65 N൉m).
7. Scrape any sap, mulch, and dirt from inside the top cover
of the housing to prevent the flywheel from rubbing on it.
Inspecting the Cutter Block
Check the gap between the blade and cutter block.
Make sure the cutter block has a crisp edge and is no farther
than 1/8” (3.2 mm) away from the blade (Figure 32). If the
cutter block is worn or chipped it should be replaced.
Figure 32
1. Blade 2. Cutter block
Lubricate the Wheel Bearings
Service Interval: Every 500 hours.
Lubricate the wheel bearings with several pumps of No. 2
General Purpose lithium base grease (Figure 33).
Figure 33
1. Grease zerk
Inspecting the Tires
Service Interval: Every 100 hours.
IMPORTANT Keep tires properly inflated. Failure to
maintain correct pressure may result in tire failure and loss
of control resulting in serious injury and property damage.
Operating accidents can damage a tire or rim, so inspect tire
condition after an accident.
Check the tire pressure frequently to ensure proper inflation.
If the tires are not inflated to the correct pressure, the tires
will wear prematurely.
Always replace worn or damaged tires with DOT approved
tires.
See (Figure 34) for the location of the tire identification
numbers.
Figure 34
2
1
1
3-3
3-2
3-1
3-1