Cleaning Under The Mower - Toro 74242 Z500 Z Master Operator's Manual

9. Tighten the jam nut under the rear support arm and
tighten the bolt securing the chain to the rear support
arm.
10. Adjust the opposite side if needed.
Adjusting the Front–to–Rear Mower Pitch
1. Position the right blade front-to-rear (Fig. 67).
2. Measure the right blade at the A location (Fig. 67),
from a level surface to the cutting edge of the blade tip
(Fig. 68).
3. Record this measurement.
4. Measure the right blade at the B location (Fig. 67),
from a level surface to the cutting edge of the blade tip
(Fig. 68).
5. Record this measurement.
6. The mower blade should be a 1/4 to 3/8 inch
(6 to 10 mm) lower at position A than at position B
(Fig. 67). If it is not correct, proceed to the following
steps.
Figure 67
Figure 68
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. 69).
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. 69).
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. 69).
2. Check the distance between the two large washers, it
needs to be 11–1/8 inches (28.3 cm) (Fig. 69).
3. Adjust this distance, by loosening the spring jam nut
and turning the nut in front of each spring (Fig. 69).
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. 69).
8
2
m–1078
m–6831
1. 11–1/8 inch (28.3 cm)
between the large
washers
2. Front nut
3. Spring jam nut
m–2539

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. Clean the deck.
47
1
8
6
7
Front
3
Figure 69
4. Front swivel
5. Swivel jam nut
6. Lift nut
7. Front support arm
8. Large washer
4
5