Belt Replacement - Toro Groundsmaster 300 Series Service Manual

Belt Replacement (Fig. 9, 10, 11)
Signs of a worn belt are: squealing when belt is rotating,
blades slipping when cutting grass, frayed belt edges,
burn marks and cracks. Replace the belt if any of these
conditions are evident.
The blade drive belt is held under tension by a spring
loaded idler.
1. Lower cutting unit to shop floor, stop the engine and
engage the parking brake. Remove belt covers from top
of cutting unit.
2. Disconnect spring from idler arm bracket to release
belt tension. Remove cotter pin and clevis pin securing
idler arm bracket to idler arm.
3. Remove capscrews and nuts securing gear box plate
to deck channels. Lift gear box plate and gear box off
deck channels and lay it on top of deck.
4. Remove belt from around spindle pulleys and through
idler pulley assembly.
5. Install belt around spindle pulleys and through idler
pulley assembly.
6. Install gear box plate on deck channels while routing
belt around gear box pulley. Mount gear box plate to
deck channels with capscrews and nuts.
7. Install idler arm bracket to idler arm with cotter pin
and clevis pin. Hook spring onto idler arm bracket. To
make sure there is proper belt tension on drive belt,
spring should be extended to a length of approximately
7.00 inches. If spring is not extended to this length,
move spring rod to other mounting holes further away
from belt.
8. Install belt covers.
®
Groundsmaster 300 Series
1. Spring
1. Gear box plate
Page 13 - 9
Figure 9
2. Idler arm 3. Idler arm bracket
Figure 10
2. Capscrews and nuts
Figure 11
Repairs