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Self-propelled Chipper Shredder Vacuum
3
1.11. The switch should not show continuity when the
plunger is pressed. See Figure 1.11.
NOTE: “OL” meter reading in Figure 1.11 indi-
cates no continuity. Other meters may read near
1 ohm.
1.12. If the switch works correctly, but does not ground
the magneto, the problem lies in the wiring or the
ground connection.
1.13. Do not return a machine to service unless this
safety feature works correctly.
Figure 1.11
2. INSPECTION OF THE DRIVE SYSTEM
2.1. Begin with an operational test. Does the drive
system operate over the full range of speeds?
2.2. Remove belt cover using a 3/8” wrench.
See Figure 2.2.
2.3. Inspect variable speed pulley for full movement.
Run the self propel mechanism though its full
range of speeds. See Figure 2.3.
• The crankshaft must be turning for the variable
speed mechanism to respond to the control
lever.This can be done with the engine running
or by pulling the engine through manually.
• The belt and pulley system operates whenever
the engine is running. The variable speed func-
tion can be tested without pulling up the self-pro-
pel bail to engage the clutch.
Figure 2.2
Belt Cover
Mounting Bolts
for Belt Cover
Figure 2.3
Speed control lever
Self propel
clutch bail
NOTE: clutch cable
connects to front
hole in bail.