Toro Z Master Professional 7000 Series Operator's Manual page 64

9. Install the new belt around the mower pulleys
and the gearbox pulley under the engine
84).
1. Mower belt
2. Mower spindle pulley
3. Spring-loaded idler pulley
4. Belt guide at a 45° angle
10. Install the belt guide on the spring-loaded idler
at a 45° angle as shown in
the bolt to 37 to 45 N∙m (27 to 33 ft-lb).
11. Install the idler spring to the 2 posts
12. Install the belt covers by sliding the cover into
the tab, install the bolts, and close the latches
(Figure 85).
1. Belt cover
2. Latch
Figure 84
5. Gearbox pulley
6. Idler spring
7. Idler plate (for 72-inch
mowers only)
Figure 84. Torque
(Figure
Figure 85
3. Insert slot into the tab
13. Install the sheet-metal guard.
(Figure
14. Tighten the bottom bolt holding the mower-deck
curtain to the mower deck.
Rear Discharge Machines
Important:
machine are designed to remain on the cover
after removal. Loosen all of the fasteners on
each cover a few turns so that the cover is loose
but still attached, then go back and loosen them
until the cover comes free. This prevents you
from accidentally stripping the bolts free of the
retainers.
1. Park the machine on a level surface, disengage
the blade-control switch, and engage the parking
brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
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operating position.
3. Loosen the bottom bolt holding the mower-deck
curtain to the mower deck; refer to
the Mower-Deck Curtain (page
4. Remove the sheet metal guard; refer to
Removing the Sheet-Metal Guard (page 42)
5. Remove the belt covers and the bolts attached
to them.
6. Loosen the fixed idler arm and adjust it to relieve
belt tension
84).
7. Remove the old belt.
8. Install the new belt on the pulleys.
9. Insert a ratchet with a short extension or a
breaker bar into the square hole in the fixed idler
arm (Figure
10. Adjust the mower deck to the 76 mm (3 inch)
height-of-cut position.
11. To increase the belt tension, rotate the ratchet or
breaker bar counterclockwise to move the fixed
idler arm until there is 16.5 cm (6-1/2 inches)
between the spring hooks
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62
The fasteners on the covers of this
(Figure 86).
86).
(Figure
Releasing
42).
86).