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Important: The belt guide should not
contact the belts with the clutch lever in the
On position.
Note: If the air gap between the belt guide and
both belts cannot be attained, then one of the
belts is too long.
C. Tighten the bolt that secures the belt guide to the
engine (Figure 74).
D. Check the clutch operation; refer to Checking the
Clutch Operation (page 42).
5. Install the divider plate; refer to Installing the Divider
Plate (page 28).
Checking the Clutch Operation
Service Interval: Every 40 hours—Check the clutch
operation (Models 68013, 68014, 68016,
68017, 68020, and 68021 only).
Important: The paddles must not rotate in an empty
drum when the clutch lever is in the Off position.
1. Move the clutch lever to the Off position; refer to
Clutch Lever (page 11).
2. Start the engine; refer to Starting the Engine (page 21).
3. If the paddles rotate with the clutch lever to the Off
position do the following:
A. Stop the engine; refer to Stopping the Engine
(page 22).
B. Check the air gap between the belt guide and the
belts.
Note: If the air gap is larger than 4.0 mm (5/32
inch), decrease the gap between the belt guide
and the belts; refer to Adjusting the Belt Guide
(page 41).
4. Repeat steps 1, 2, and 3 until all the following
conditions are met:
•
The engine is run at 2/3 throttle.
•
The clutch lever is in the Off position.
•
The paddles do not rotate in an empty drum.
Aligning the
Pulleys—Belt-drive Models
Models 68013, 68014, 68016, 68017, 68020, and 68021 only
1. Remove the divider plate; refer to Removing the
Divider Plate (page 28).
2. Place a straightedge across the face of the engine pulley
and the idler pulley (Figure 75).
1
1. Engine pulley
2. Idler pulley
3. Straightedge
Note: Both pulleys must be aligned flush with the
straightedge.
3. If the pulleys are not aligned do the following:
A. Move the clutch lever to the Off position.
B. Loosen the locknuts and setscrews that secure the
idler pulley to the idler shaft (Figure 75).
C. Using a soft-face mallet, tap the idler pulley
forward or backward along the idler shaft until
the engine pulley and the idler pulley are aligned
to the straight edge (Figure 75).
D. Tighten the setscrews and locknuts that secure the
idler pulley to the idler shaft (Figure 75).
4. Install the divider plate; refer to Installing the Divider
Plate (page 28).
42
2
3
4
5
6
G020015
Figure 75
4. Idler shaft
5. Locknut
6. Setscrew
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