Belt Inspection; Clean Under Deck; Replacing The Deck Belt; Replacing The Pto Drive Belt - Toro 74241 Operator's Manual

3. Adjust by turning nut in front of each spring (Fig. 49).
Clockwise will shorten spring; counterclockwise will
lengthen spring.

Belt Inspection

Inspect all belts every 100 hours.
1. Check belts for cracks, frayed edges, burn marks or
any other damage. Replace damaged belts.

Clean Under Deck

Remove grass build up under deck daily.
1. Position mower on a flat surface. Stop the engine, set
the parking brake, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Raise deck to the transport position.
3. Raise front of machine by using the Z–Stand. Refer to
Z–Stand operation on page 26.
Danger
Unit could fall onto someone and cause serious
injury or death.
Use extreme caution when operating unit on
Z–Stand.
Use only for cleaning deck and removing
blades.
Do not keep unit on Z–Stand for extended
periods of time.
Always shut engine off and set parking brake
before performing any maintenance to deck.

Replacing the 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 deck belt. Replace the deck belt if any of
these conditions are evident.
1. Stop the engine, set the parking brake, remove the key
and disconnect the spark plug wire(s) from the spark
plug(s).
2. Remove the PTO drive belt; refer to Replacing the
PTO Drive Belt, page 46.
3. Loosen two nuts securing idler plate and move the
idler arm to relieve belt tension on the idler pulley,
then remove the worn deck belt (Fig. 50).
4. Install the new deck belt around the spindle pulleys,
belt guide, the idler pulley, and in the lower groove of
the center spindle pulley (Fig. 50).
5. Using a socket and torque wrench, rotate the idler
adjusting nut until torque is 25–30 ft-lb. (34–41 N m).
Tighten two nuts.
1
Figure 50
1. Deck belt
2. Idler arm
6. Reinstall the PTO drive belt; refer to Replacing the
PTO Drive Belt, page 46.

Replacing the PTO Drive Belt

Squealing when the belt is rotating, blades slipping when
cutting grass, frayed belt edges, burn marks and cracks are
signs of a worn drive belt. Replace the PTO drive belt if
any of these conditions are evident.
1. Stop the engine, set the parking brake, remove the key
and disconnect the spark plug wire(s) from the spark
plug(s).
2. Remove the clutch retaining strap from machine frame
and unplug clutch terminal from wire harness
(Fig. 51).
3. Remove PTO drive belt from clutch, around rear idler
pulleys and off of mower top center pulley (Fig. 52).
4. Remove bolt, nut, washer and spacer from idler pulley
bracket assembly. Remove belt from bracket assembly
(Fig. 52).
5. Install new PTO drive belt over clutch, around rear
idler pulleys and onto mower top center pulley.
Note: Check that belt has only 1/4 twist between each
pulley and idler.
6. Install belt into idler pulley bracket assembly. Install
bolt, nut, washer and spacer into assembly (Fig. 52).
Note: Idler belt has to be installed between spacer and
PTO belt idler pulley.
7. Install clutch retaining strap and plug clutch terminal
into main wire harness (Fig. 51).
46
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Top View
3. Idler nuts
4. Idler adjusting nut
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