Cleaning Under The Mower; Inspecting The Belts; Replacing The Mower Belt - Toro 74239 Operator's Manual

4. Lock the nut into position by tightening the spring jam
nut (Fig. 68).
8 1
2
m–6831
Figure 68
1. 10–1/2 inch (26.7 cm)
between the large
washers
2. Front nut
3. Spring jam nut

Cleaning Under the Mower

Remove the grass buildup under the mower daily.
1. Position the mower on a flat surface.
2. Disengage the PTO, move the motion control levers to
the neutral locked position and set the parking brake.
3. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
4. Raise the mower to the transport position.
5. Lift the front of the machine and support the machine
using jack stands.
8
4
5
6
7
Front
3
4. Front swivel
5. Swivel jam nut
6. Lift nut
7. Front support arm
8. Large washer
47
Warning
Mechanical or hydraulic jacks may fail to support
the machine and cause a serious injury.
Use jack stands when supporting the machine.
Do not use hydraulic jacks.

Inspecting the Belts

Inspect all belts every 100 hours.
1. Check belts for cracks, frayed edges, burn marks or
any other damage. Replace damaged belts.

Replacing the Mower Belt

Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks are
signs of a worn mower belt. Replace the mower belt if any
of these conditions are evident.
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. Remove the belt covers (Fig. 70).
4. Loosen the nut securing the idler plate and move the
idler plate to relieve the belt tension on the idler pulley
(Fig. 72).
5. Remove the nut, washer and belt guide from the rear
leftside pulley (Fig. 69).
6. Remove the mower belt from the belt guides and
remove the belt (Fig. 69).
7. Install the new mower belt around the mower spindle
pulleys, mower idler pulley, into the belt guides, into
rear idler arm assembly, and the clutch (Fig. 69).
8. Install the belt guide with a washer and nut onto the
rear leftside pulley (Fig. 69).