Checking And Replacing The Pump Drive Belt; Replacing And Tensioning The Alternator Belt - Toro 74268CP Operator's Manual

Figure 64
1. Left adjustable pulley
2. Left spring loaded idler
pulley
3. Back of the machine
Checking and Replacing the
Pump Drive Belt
Service Interval: Every 50 hours—Check the pump
drive belt.
1. Tilt the seat forward and remove the front engine
panel.
2. Check the pump drive belt for wear.
3. To replace the belt, pull the spring loaded idler down
and remove the traction belt from the engine and
hydro pump pulleys (Figure 65). Remove the belt
between the pulleys.
4. Install the new belt around the engine and hydro
pump pulleys (Figure 65).
5. Pull the spring loaded idler down and align it below
the traction belt. Release the pressure on the spring
loaded idler (Figure 65).
Figure 65
1. Spring loaded idler pulley
4. Right adjustable pulley
5. Right spring loaded idler
pulley
2. Pump drive belt
Replacing and Tensioning the
Alternator Belt
Replacing the Alternator Belt
Service Interval: Every 50 hours—Check the alternator
belt.
1. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Tilt the seat forward and remove the front engine
panel (Figure 66).
1. Front engine panel
4. Check the alternator belt for wear.
5. To replace the alternator belt, remove the pump
drive belt. Refer to Removing the Pump Drive Belt.
6. Loosen the two bolts holding the alternator
(Figure 67).
7. Remove the belt from the pulleys and alternator
(Figure 67).
8. Install a new belt around the pulleys and the
alternator (Figure 67).
Tensioning the Alternator Belt
1. Place a handle between the alternator and cylinder
block (Figure 67).
2. Adjust the alternator to the outside until there is 3/8
to 1/2 inch (10 to 13 mm) deflections in the belt
between the engine and the alternator (Figure 67).
3. Tighten the alternator bolts.
4. Check the deflection in the belt again and adjust the
belt if needed.
46
Figure 66
2. Knob