Troy-Bilt 12090 - Manual (Page 36)

Sections: Maintenance
A, WARNING
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Before iospectiiig, cleaning or servicing the machine, shut off engine, wait for all moving parts to come
to a complete stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition
key, if so equipped.
Failure to follow these instmctions can result in serious personal injury or property damage.
3. insert the belt adjustment tool through
the hole In the side of the adjustment
block, spacing the ends of the tool equally
on both sides (Figure 5-14). Rotate the
tool so the slotted end faces down.
Figure 5-15: With Drive Lever in
FORWARD position, clutch roller
should be engaged slightly beneath
the adjustment block.
5. Use one hand to hold the drive lever in
FORWARD while using a 9/16" wrench to
loosen (don't remove) the bolt at the back
of the belt adjustment block (Figure 5-16).
The adjustment block should be free to
move either up or down.
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Figure 5-14: With WheelsITinesIPTO
Drive Lever in NEUTRAL, insert tool
through hole in adjustment block.
4. Place the Wheels/Tines/PTO Drive
Lever in FORWARD position. The arms of
the clutch control yoke will be resting on
the belt adjustment tool and the clutch
roller should be engaged slightly beneath
the adjustment block (Figure 5-15).
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Figure 5-16: Hold Drive Lever while
loosening bolt. Push lever down to
tighten belt; pull up to loosen belt.
6. Push the drive lever down if the belt
needs tightening. Pull the lever up if the
belt needs to be loosened. Flold the drive
lever in place and tighten the bolt in the
adjustment block firmly.
7. Let go of the drive lever and remove
the belt adjustment tool from the hole in
the adjustment block.
8. Check the tension on the belt by
following the previous instructions "Flow
to Measure Belt Tension."
NOTE: If the adjustment block is aii the
way down and the measurement between
the clutch roller and the bracket is less
than 1/4", then a new drive beit is needed.
Replacing the Drive Belt
Removing the Belt
1. Move Wheels/Tines/PTO Drive Lever to
NEUTRAL position.
2. While kneeling on the right side of the
tiller, create slack in the belt by reaching
over to the ieft side of the puiieys and
pushing in on the center of the belt with
your finger.
3. Use your right hand to move the beit
down and away from the lower puiiey, in
the direction of the engine (Figure 5-17).
4. Push the belt upward to create slack in
the belt (Figure 5-18).
Figure 5-17: First move belt off the
lower pulley.
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Push Belt UP
Figure 5-18: Push belt upward to
create slack.
5. Lift the top half of the belt up and over
the upper pulley and the rubber reverse
disc, moving it in front of the reverse disc
(refer to Figure 5-19).
6. Push the Wheels/Tines/PTO Drive
Lever down into the FORWARD position.
This increases the distance between the
upper and lower pulleys. Next, iift and
puii the entire belt out between the pulleys
(Figure 5-20).
Replacing the Drive Belt
1. Piace Wheels/Tines/PTO Drive Lever in
FORWARD position.
2. Squeeze the belt in the middle and
insert one end in between the pulleys
(Figure 5-20).
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