Belt Maintenance; Servicing The Alternator Belt; Servicing The Compressor Belt; Replacing The Blade-Drive Belts - Toro Groundsmaster 5910 Operator's Manual

Belt Maintenance

Servicing the Alternator Belt

Service Interval: After the first 10 hours—Check the
alternator-belt tension.
Every 1,000 hours—Check the alternator-belt tension.
Refer to the engine owner's manual (included with the
machine) for the servicing procedure.

Servicing the Compressor Belt

Model 31599 Only
Service Interval: After the first 10 hours—Check the
compressor-belt tension.
Every 1,000 hours—Check the compressor-belt
tension.
1. Loosen the compressor-pivot bolt and adjusting bolt
(Figure 80).
2. Insert a torque wrench into the square hole in the
compressor bracket
Figure 80
1. Compressor belt
2. Mounting bolt
3. Rotate the wrench until you attain a torque of 37 to 45
N·m (27 to 33 ft-lb).
4. Tighten the mounting bolts.
(Figure 80).
3. Square hole
4. Pivot bolt
Replacing the Blade-Drive
Belts
Service Interval: Every 50 hours—Inspect the blade-drive
belts.
Every 1,000 hours—Replace the blade-drive belts.
The blade-drive belt, tensioned by the spring-loaded idler
pulley, is very durable. However, after many hours of use, the
belt will show signs of wear. Signs of a worn belt are squealing
when the belt is rotating; blades slipping when cutting grass;
frayed edges; burn marks; and cracks. Replace the belt if any
of these signs occur.
Replacing the Front Mower-Deck Belt
1. Lower the mower deck to the shop floor.
2. Remove the belt covers from the top of the mower
deck and set the covers aside.
3. On the front deck, loosen the jam nuts on the idler
pulley stop screw and thread the stop screw into the
bracket (Figure
1. Idler stop screw
2. Idler pulley
4. Using a ratchet wrench or similar tool, move the idler
pulley away from the drive belt to release the belt
tension and allow the belt to be slipped off the deck
pulleys (Figure 81).
5. Remove the bolts securing the hydraulic motor to the
mower deck (Figure
54
81).
Figure 81
3. 2.5 mm to 4 mm (0.10 to
0.16 inch)
82).