Replacing The Pump Drive Belt; Replacing And Tensioning The Alternator Belt - Toro 74279TE Operator's Manual

Replacing the Pump Drive Belt

Service Interval: Every 50 hours—Check the pump drive
belt.
Note: Remove the PTO drive belt first if the pump drive
belt needs to be replaced.
1. Tilt the seat forward and remove the front engine panel.
2. Remove the PTO drive belt.
3. Remove the spring from the idler arm
4. Install the new belt around the engine and hydro pump
pulley (Figure 68).
5. Install the PTO drive belt.
6. Install the spring to the idler arm
1. Clutch
2. Pump drive belt
Replacing and Tensioning the
Alternator Belt
Replacing the Alternator Belt
Service Interval: Every 50 hours—Check the alternator belt.
If the alternator belt needs to be replace, take your machine
to an Authorized Service Dealer.
Tensioning the Alternator Belt
1. Place a handle between the alternator and cylinder
block.
2. Adjust the alternator to the outside until there is 7 to 9
mm (1/4 to 11/32 inch) deflection in the belt between
the engine and the alternator pulleys with 10 kgf (22.1
lb of force) (Figure
3. Tighten the alternator bolts.
4. Check the deflection in the belt again and adjust the
belt if needed.
(Figure
(Figure 68).
Figure 68
3. Spring
4. Spring loaded idler pulley
69).
5. If the deflection is correct, tighten the bottom and
upper bolt
68).
1. Alternator
2. Alternator belt
3. Deflection, 7 to 9 mm (1/4
to 11/32 inch) with 10 kgf
(22.1 lb of force)
48
(Figure 69).
Figure 69
4. Top bolt
5. Bottom bolt