Maintenance
Adjustments
Note:
Shut off engine, wait for all moving parts to
stop, and remove spark plug wire before servicing,
cleaning, or making any adjustments to the machine.
Adjusting the Self-Propel
Drive
If the machine creeps either forward or rearward
when the engine is on and the traction control lever is
in neutral, complete the following procedure:
1.
Stop engine, wait for all moving parts to stop, and
remove spark plug wire.
2.
Raise the cutting blades to the highest position.
3.
Squeeze the self-propel bail to the handle until
the transmission is fully stroked.
•
If the bail contacts the handle, release the bail.
Loosen the top adjustment nut one turn and
tighten the bottom adjustment nut. Squeeze
the bail to the handle. Repeat this step until
there is a gap (up to 1/8 inch (3.2 mm))
between the self–propel bail and the handle.
Once the gap is achieved, proceed with step 4
g021266
Figure 15
1.
Top/Bottom adjustment
nuts
4.
Turnbuckle
2.
Cable
5.
Self-propel drive bail
3.
Jam nut
•
If the bail does not contact the handle, then
proceed to step 4.
4.
Remove the hairpin, rotate the turnbuckle
clockwise one more full turn.
5.
Reinstall the hairpin and rotate the jam nut against
the turnbuckle.
6.
Start the engine and test the adjustment, repeating
this procedure as necessary.
Adjusting the Self-Propel
Drive Belt Tension
If the self-propel drive belt squeals during operation
(i.e., when moved from neutral to forward or reverse),
tighten the belt as follows:
1.
Stop engine, wait for all moving parts to stop, and
remove spark plug wire.
2.
Raise the cutting blades to the highest position.
3.
Remove and retain the four bolts, lock washers,
and two spacers securing the belt cover to the left
side of the machine and remove the cover.
4.
Check the tension of the transmission drive belt.
It should not flex more than a 1/4 inch (6 mm)
with moderate finger pressure applied to the span
just above the machine frame.
g021850
Figure 16
1.
Belt
3.
Nut
2.
Carriage pulley
5.
To tighten the belt, loosen the four mounting
nuts/bolts securing the pulley carriage to the
frame and move the carriage to the left, tightening
the belt, then secure the four mounting nuts and
bolts.
6.
Reinstall the belt cover using the hardware
retained in step 3.
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