Toro Z500 Series Z Master, Operator'S Manual

Page: 43 / 64

Figure 51
1. Belt cover 3. Insert slot into the tab
2. Latch
Adjusting the Mower Belt
Tension
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.
Important:
Check the amount of twist
in the belt between the pulleys. Make sure
it is only what is specified in Figure 50.
Important:
Check and make sure the
belt is installed into both the front and rear
belt guides (Figure 52).
4. Check the belt tension. The spring loaded idler
center bolt needs to be near the top alignment
hole in left support plate (Figure 52).
Figure 52
1. Center bolt 3. Left support plate
2. Alignment hole 4. Spring loaded idler
5. If adjustment is required, loosen the mower
idler plate and adjust it (Figure 53).
6. Insert a ratchet or breaker bar into the square
hole in the mower idler plate to adjust the
tension (Figure 53).
7. To increase belt tension, rotate the mower idler
plate until resistance is felt and rotation stops.
Do not go past when it stops (Figure 53).
8. Tighten the idler plate bolts (Figure 53).
Figure 53
1. Mower idler plate 3. Ratchet or breaker bar
2. Square hole 4. Idler plate bolt
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
(Figure 54).
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