Cleaning Under The Mower; Inspecting The Belts; Replacing The Mower Belt - Toro 74246 Operator's Manual

MEASURE FROM
CUTTING EDGE TO A
LEVEL SURFACE
Figure 70
Note: Both of the front swivels need to be adjusted the
same amount to maintain equal chain tension.
7. Loosen the front swivel jam nuts, at the front of the
right and left swivels, approximately a 1/2 inch
(13 mm) (Fig. 71).
8. Adjust the lift nuts on both the left and the right side of
the machine to achieve 1/4 to 3/8 inch (6 to 10 mm)
lower in front at A than in the rear at B (Fig. 71).
9. Tighten both swivel jam nuts against the front swivel
to lock the height.
10. Check to make sure there is equal tension on the
chains and adjust again if needed.
Adjusting the Compression Spring
1. Raise the mower lift lever to the transport position
(Fig. 16).
2. Check the distance between the two large washers, it
needs to be 10–1/2 inches (26.7 cm) (Fig. 71).
8 1
2
m–6831
Figure 71
1. 10–1/2 inch (26.7 cm)
between the large
washers
2. Front nut
3. Spring jam nut
m–2539
8
4
5
6
7
Front
3
4. Front swivel
5. Swivel jam nut
6. Lift nut
7. Front support arm
8. Large washer
48
3. Adjust this distance, by loosening the spring jam nut
and turning the nut in front of each spring (Fig. 71).
Turning the nut clockwise will shorten the spring;
counter–clockwise will lengthen the spring.
4. Lock the nut into position by tightening the spring jam
nut (Fig. 71).

Cleaning Under the Mower

Remove the grass buildup under the mower daily.
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. Raise the mower to the transport position.
4. Raise the front of the machine by using the Z Stand;
refer to Using the Z Stand, page 26.
Warning
Unit could fall onto someone and cause serious
injury or death.
Use extreme caution when operating unit on
Z Stand.
Use only for cleaning mower and removing
blades.
Do not keep unit on Z Stand for extended
periods of time.
Always shut engine off and set parking brake
before performing any maintenance to mower.

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. 73).