Servicing The Mower-Deck Belt; Installing The Mower Deck - Toro 74670 Operator's Manual

Servicing the Mower-Deck Belt

Inspecting the Belts
Service Interval: Every 25 hours—Check the belts for
wear/cracks.
Check the belts for cracks, frayed edges, burn marks, or any
other damage. Replace damaged belts.
Replacing the Mower-Deck Belt
Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks, and cracks are
signs of a worn mower belt. Replace the mower belt if any of
these conditions are evident.
1. Park the machine on a level surface and disengage the
blade-control switch.
2. Set the parking brake, stop the engine, remove the key,
and wait for all moving parts to stop before leaving the
operating position.
3. Set the height-of-cut at the lowest cutting position (38
mm (1-1/2 inches)).
4. Loosen the bottom two bolts holding the mower-deck
curtain to the mower deck. Refer to
Mower-Deck Curtain (page
5. Using a spring-removal tool (Toro part no. 92-5771),
remove the idler spring from the deck hook to remove
tension on the idler pulley, and roll the belt off of the
pulleys (Figure 56.
WARNING
The spring is under tension when installed
and can cause personal injury.
Be careful when removing the belt.
Releasing the
28).
3
6
Mower Decks with 1 Blade
1. Idler pulley
2. Mower belt
3. Outside pulley
6. Route the new belt around the engine pulley and
mower pulleys (Figure
7. Using a spring removal tool (Toro part no. 92-5771),
install the idler spring over the deck hook and placing
tension on the idler pulley and the mower belt
56).
8. Tighten the bottom 2 bolts for the mower-deck curtain
to the mower deck. Refer to
Curtain (page 28).

Installing the Mower Deck

1. Park the machine on a level surface and disengage the
blade-control switch.
2. Set the parking brake, stop the engine, remove the key,
and wait for all moving parts to stop before leaving the
operating position.
3. Slide the mower under the machine.
4. Lower the height-of-cut lever to the lowest position.
5. Lift the rear of the mower deck and guide the hanger
brackets over the rear lift rod
6. Attach the front support rod to the mower deck with
the clevis pin and hairpin cotter
7. Install the mower belt onto the engine pulley; refer to
Replacing the Mower-Deck Belt (page
44
5
2
4
G015129
Figure 56
4. Spring
5. Engine pulley
6. Spring-removal tool
56).
Releasing the Mower-Deck
(Figure 55).
(Figure 54).
44).
1
4
(Figure