Replacing The Grass Deflector - Toro 74242 Z500 Z Master Operator's Manual

5. If adjustment is required, loosen the mower idler plate
and adjust it (Fig. 73).
6. Insert a ratchet or breaker bar into the square hole in
the mower idler plate to adjust the tension (Fig. 73).
7. To increase belt tension, rotate the mower idler plate
until resistance is felt and rotation stops. Do not go
past when it stops (Fig. 73).
8. Tighten the idler plate bolts (Fig. 73).
2
1
m–6826
Figure 73
1. Mower idler plate
2. Square hole
9. Check the distance from the rubber stop and the arm of
the spring loaded idler pulley when the idler plate is
tightened. It needs to be 0 to 1/4 inch (0 to 6 mm)
from the rubber stop (Fig. 74).
6
4
2
1
m–6825
Figure 74
1. Spring loaded idler pulley
2. Top alignment hole
3. 0 to 1/4 inch gap
(0 to 6 mm)
3
4
3. Ratchet or breaker bar
4. Idler plate bolt
3
5
4. Idler pulley arm
5. Belt
6. Rubber bumper
49
10. Adjust the belt tension and the idler plate, if necessary,
and tighten all hardware securely (Fig. 73).
11. If the mower idler plate contacts the end of the
adjustment slot and more belt tension is required, a
small change to the right side fixed idler can create
more belt tension adjustment (Fig. 75).
1
Figure 75
1. Fixed Idler

Replacing the Grass Deflector

Warning
An uncovered discharge opening could allow the
lawn mower to throw objects in the operator's or
bystander's direction and result in serious injury.
Also, contact with the blade could occur.
Never operate the lawn mower unless you
install a cover plate, a mulch plate, or a grass
chute and catcher.
Make sure the grass deflector is in the
down position.
1. Remove the locknut, bolt, spring and spacer holding
the deflector to the pivot brackets (Fig. 76). Remove
damaged or worn grass deflector.
2. Place spacer and spring onto grass deflector. Place the
L end of spring behind deck edge.
Note: Make sure the L end of spring is installed behind
deck edge before installing the bolt as shown in figure 76.
3. Install bolt and nut. Place J hook end of spring around
grass deflector (Fig. 76).
Important The grass deflector must be able to lower
down into position. Lift the deflector up to test that it
lowers into the full down position.
2
m–3746
2. Adjustment slot