Belt Maintenance; Checking The Alternator Belt; Servicing The Pto Belt - Toro 30344 Operator's Manual

Belt Maintenance

Checking the Alternator Belt

Service Interval: Every 200 hours
After the first 10 hours
Check condition and tension of alternator belt (Figure 64)
after every 200 operating hours.
1. Proper tension will allow 10 mm (3/8 inch) deflection
when a force of 10 lb is applied on the belt, midway
between the pulleys.
2. If the deflection is not 10 mm (3/8 inch), loosen the
alternator mounting bolts.
Figure 64
1. Alternator
3. Increase or decrease the alternator belt tension and
tighten the bolts.
4. Check the deflection of the belt again to ensure that
the tension is correct.

Servicing the PTO Belt

Checking the PTO Belt Tension
Service Interval: After the first 10 hours
After the first 50 hours
Every 200 hours
1. Turn the engine off, set the parking brake, and remove
the ignition key.
2. Raise the engine hood and allow the engine to cool.
3. Loosen the tensioning rod jam nut (Figure 65).
2. Mounting bolt
1. Tensioning spring
2. Tensioning rod jam nut
4. Use a 1/2 inch wrench to tighten or loosen the belt
tensioning spring (Figure 65). Adjust spring to a length
of 273 mm (7/8 inches).
5. Tighten the jam nut.
Replacing the PTO Belt
1. Turn the engine off, set the parking brake, and remove
the ignition key.
2. Raise the engine hood and allow the engine to cool.
3. Loosen the tensioning rod jam nut (Figure 65).
4. Using a 1/2 inch wrench, loosen the belt tensioning
spring (Figure 65) all the way.
5. Rotate the PTO pulley toward the engine and remove
the belt.
6. Install the new PTO belt and tension the pulley spring
to 73 mm (2-7/8 inches) (Figure 65).
7. Tighten the jam nut (Figure 65) and close the hood.
50
Figure 65
3. Tension adjusting bolt