Belt Maintenance; Checking The Pump-Belt Tension; Adjusting The Pump-Drive Belt - Toro Workman HD 07369 Operator's Manual

Belt Maintenance

Checking the Pump-Belt
Tension
Service Interval: After the first 10 hours
Every 200 hours
Check the pump belt for wear, cracking, or improper tension.
Check the tension by pressing belt at mid span between the
crankshaft and pump pulleys with 10 kg (22 lb) of force. A
new belt should deflect 12 to 15 mm (0.48 to 0.58 inch) A
used belt should deflect 14 to 16.5 mm (0.55 to 0.65 inch). If
the deflection is incorrect, refer to Belt Maintenance for the
tensioning procedure. If correct, continue operation.
CAUTION
Improper belt tension may result in increased
steering effort or may damage the pump/engine if
the belt is overtightened.

Adjusting the Pump-Drive Belt

1. Raise the bed (if equipped) and position the safety
support on the extended-lift cylinder to hold up the
bed.
2. Check the tension by pressing the belt at mid span
between the crankshaft and the pump pulleys with 10
kg (22 lb) of force.
Note: A new belt should deflect 12 to 15 mm (0.48
to 0.58 inch) A used belt should deflect 14 to 16.5
mm (0.55 to 0.65 inch). If the deflection is incorrect,
proceed to next step. If correct, continue operation.
3. To adjust belt tension, complete the following:
A. Loosen the nuts securing the hydraulic pump to
the engine frame (Figure 59).
1. Pump-drive belt
B. Rotate the pump until you attain the desired belt
tension and tighten the nuts.
47
Figure 59