Replacing The Traction Belt; Adjusting The Electric Clutch - Toro ProLine 30177 Operator's Manual

Replacing the Traction Belt

1. Raise the front of the machine and hold with
jack stands.
2. Disconnect in–line wire connector from wire
harness to electric clutch.
3. Remove mower drive belt; refer to mower
Operator's Manual.
4. Remove left front engine mounting bolt securing
clutch retainer to frame (Fig. 32). Unhook
retainer from clutch and remove retainer.
5. Unhook tension spring from side of frame
(Fig. 32).
6. Loosen pivot bolt enough to remove traction belt
from the drive pulley and clutch.
7. Install new belt around clutch and drive pulley.
8. Torque pivot bolt to 35-40 ft. lb. (47-54 N.m).
Install tension spring between idler arm and
frame bracket (Fig. 32).
9. Hook clutch retainer into clutch and secure to
frame with engine mounting bolt. Torque engine
mounting bolt to 170-220 in. lb. (19-24 N.m).
10. Connect clutch in–line wire connector to wire
harness.
3
5
Figure 32
1. Traction belt
2. Idler pulley
3. Clutch retainer
1
4
2
6
4. Tension spring
5. Adjusting nut
6. Pivot bolt

Adjusting the Electric Clutch

The clutch is adjustable to ensure proper engagement
and proper braking. Check adjustment after every 100
hours of operation.
1. To adjust clutch, tighten or loosen lock nuts on
flange studs (Fig. 33).
2. Check adjustment by inserting feeler gauge thru
slots next to studs (Fig. 33).
3. The proper disengaged clearance between the
clutch plates is .012–.018 in. (0.30-0.45 mm). It
will be necessary to check this clearance at each
of the three slots to ensure the plates are parallel
to each other.
1. Adjusting nut
2. Slot
m–1221
1
Figure 33
3. Feeler gauge
Maintenance
2
3
m–2600
31