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SECTION 7
MAINTENANCE INFORMATION
7.1.5 SPARK ARRESTER
Cleaning the Spark Arrester
After operating the engine, do not touch any part of the
exhaust system until it has had sufficient time to cool!
1. Keep a record of the number of hours of engine use. The
spark arrester should be removed, cleaned and inspected
every 150 hours of operation.
2. Remove the tail pipe assembly by disconnecting the springs
from the muffler attached to the tail pipe.
3. The screen-type spark arrester assembly is located inside
the tail pipe, closest to the muffler. The spark arrester fits
inside the tail pipe and a flared adapter fits inside the spark
arrester.
4. Remove the spark arrester from the tail pipe and the
adapter from the spark arrester.
5. Shake loose particles out of the screen assembly.
6. Clean the screen with a wire brush. (Soak it in oil solvent
if necessary.)
7. If any breaks in the screen or weldments are discovered,
replace the assembly with Part No. 607-171.
8. Insert the screen assembly into the tail pipe and the adapter
back into the spark arrester. Reconnect the tail pipe as-
sembly to the muffler with the tension springs.
7.2 DRIVE SYSTEM & TIRES
Do not attempt to adjust, repair or replace the drive belt,
clutches or any moving part while the engine is running.
Doing so will cause injury. Before servicing the vehicle,
disconnect the battery to prevent accidentally starting
the engine.
Keep the engine compartment hood, clutch guard and
firewall securely in place when the engine is running.
Severe injury can result if the drive belt, clutch compo-
nents or other moving parts come loose.
If engine compartment inspection is necessary while the
engine is running, use EXTREME CAUTION! Keep en
-
gine RPM low. Avoid standing directly in line with mov-
ing components. Use a mirror to view the components.
7.2.1 DRIVE BELT
The drive belt transmits power from the driver clutch (on
the engine) to the driven clutch (on the transmission). These
components are located on the left side of the engine compart-
ment (Figure 7-2).
Figure 7-2. Location of drive clutches and drive belt.
Check the drive belt after every 25 hours of operation, or
whenever there is a noticeable reduction in clutch perfor-
mance. Replace the belt when:
•
the top width of the belt has worn to 1-1/16" (27mm)
•
cracks, fraying or shredding is apparent
•
it becomes contaminated with oil or some other fluid
Replace the belt with Part No. 127-137HD.
Drive Belt Adjustment
To extend the life of the drive belt, the INVANCE driven
clutch allows for some adjustment to reset the belt height if
necessary. If belt wear causes the belt to start sitting below
the sheaves at idle, adjustment can be made to bring the belt
back up to flush or 1/10" above the sheaves.
1. Remove the driven clutch from the vehicle and move to
a clean work bench.
2. Loosen both jam nuts located on the fixed face of the
clutch. Figure 7-2a.
