Replacing The Drive Belt - Toro 30555 Operator's Manual

Replacing the Drive Belt

The blade drive belt, tensioned by the adjustable idler, is very
durable. However, after many hours of use, the belt shows
signs of wear. Signs of a worn belt are: squealing when belt
is rotating, blades slipping when cutting grass, frayed edges,
burn marks, and cracks. Replace the belt if any of these
conditions are evident.
1. Move the machine on a level surface, lower the mower
deck, engage the parking brake, put the traction pedal
into the N
EUTRAL
O position, shut off the engine, and remove the key
FF
from the ignition.
2. Release the latches and loosen the bolts securing the
covers.
3. Remove the covers from the top of the mower deck.
4. Loosen the 2 nuts securing the idler plate in place and
remove the old belt from the pulleys.
5. To install a new belt, the gearbox base must be
removed. To do this, remove the 4 carriage bolts and
locknuts holding the gearbox base.
6. Install the new belt around the gearbox pulley, spindle
pulleys, stationary idler pulley, and adjustable idler
pulley (Figure 47).
1
1. Adjustable idler pulley
7. Install the gearbox base with the carriage bolts and
locknuts.
8. Using a torque wrench, adjust the tension of the idler
pulley against the belt; refer to
Pulley (page 22).
9. Install the covers to the top of the mower deck.
10. Engage the cover latches and tighten the bolts to secure
the covers.
position, the PTO lever into the
2
Figure 47
2. Gearbox pulley
Adjusting the Idler
G010560
23