Cleaning Under The Mower; Inspecting The Belts - Toro 74410 Operator's Manual

2. Measure the right blade at the A location (Fig. 54) from
a level surface to the cutting edge of the blade tip
(Fig. 55).
MEASURE FROM
CUTTING EDGE TO
A LEVEL SURFACE
Figure 55
3. Record this measurement.
4. Measure the right blade at the B location (Fig. 54) from
a level surface to the cutting edge of the blade tip
(Fig. 55).
5. Record this measurement.
6. The mower blade should be 1/4 to 3/8 inch
(6 to 10 mm) lower at position A than at position B
(Fig. 54). If it is not correct, go to the following steps.
Note: You must adjust both of the front swivels 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 1/2 inch (13 mm)
(Fig. 56).
8
2
m–7704
Figure 56
1. 10-1/2 inch (267 mm)
between the large
washers
2. Front nut
3. Spring jam nut
m–2539
1
8
4
5
6
7
3
Front
4. Front swivel
5. Swivel jam nut
6. Lift nut
7. Front support arm
8. Large washer
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. 56).
9. Tighten both swivel jam nuts against the front swivel to
lock the height.
10. Check to ensure that 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. 56).
2. Check the distance between the 2 large washers; it must
be 10-1/2 inches (26.7 cm) (Fig. 56).
3. Adjust this distance by loosening the spring jam nut and
turning the nut in front of each spring (Fig. 56).
Note: Turning the nut clockwise shortens the spring;
turning the nut counterclockwise lengthens the spring.
4. Lock the nut into position by tightening the spring jam
nut (Fig. 56).

Cleaning under the Mower

Remove grass buildup under the mower housing 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 housing to the transport position.
5. Lift the front of the machine and support the machine
using jack stands.
Danger
Mechanical or hydraulic jacks may fail to support
machine and cause a serious injury.
• Use the jack stand when supporting the
machine.
• Do not use hydraulic jacks.

Inspecting the Belts

Inspect all belts every 250 hours.
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