Ariens Classic LM 21 Manual page 22

WHEEL DRIVE CONTROL
ADJUSTMENT
(Self-Propelled Models)
See Figure 16.
NOTE: When the wheel drive control is
disengaged, the gap between the friction disc
and the aluminum drive plate should be
approximately .030" (.7mm). See Figure 16.
Friction Disc
Figure 16
Check the adjustment with the engine off and
with the engine on:
1. With the engine off and the wheel drive
control disengaged, push the mower
forward in both fast and slow speed
settings.
If the mower pushes freely, the gap
between the friction disc and aluminum
drive plate is sufficient. If the mower is
difficult to push or the rear wheels drag,
increase the gap between the friction
disc and aluminum drive plate.
2. With the engine on, the mower should
start moving as soon as the wheel drive
control begins to pull on the cable.
If the wheel drive control requires a long
travel before the mower begins to pull,
decrease the gap between the friction
disc and aluminum drive plate.
To increase the gap between the friction disc
and the aluminum drive plate:
1. Loosen the lower cable nut on the wheel
drive control cable, and then tighten the
upper cable nut against the adjuster
bracket. See Figure 17.
Aluminum Drive
Plate
Approx. .030"
(0.7mm)
GB - 22
To increase the gap,
loosen the lower
cable nut.
Then tighten the upper
cable nut against the
bracket.
Figure 17
To decrease the gap between the friction disc
and the aluminum drive plate:
1. Loosen the upper cable nut on the wheel
drive control cable, and then tighten the
lower cable nut against the adjuster
bracket. See Figure 18.