Toro 74214 - Belt Replacement Procedures; Replacing the Deck Belt; Replacing the PTO Drive Belt

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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. 57).
2
1
3
4
m–4312
Figure 57
Top View
1. Deck Belt
2. Idler Arm
3. Idler nuts
4. Idler adjusting nut
5. Using a socket and torque wrench, rotate the idler
adjusting nut until the torque is 25–30 ft.-lb.
(34–41 N⋅m). Tighten the two nuts.
6. Install the PTO drive belt; refer to Replacing the PTO
Drive Belt, page 43.
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 the machine
frame and unplug the clutch terminal from the wire
harness (Fig. 58).
3. Remove the PTO drive belt from the clutch, around the
rear idler pulleys, and off of the mower top center
pulley (Fig. 59).
4. Remove the bolt, nut, washer, and spacer from the idler
pulley bracket assembly. Remove the belt from the
bracket assembly (Fig. 59).
5. Install the new PTO drive belt over the clutch, around
the rear idler pulleys, and onto the mower top center
pulley.
Note: Check that belt has only 1/4 twist between each
pulley and idler.
6. Install the belt into the idler pulley bracket assembly.
Install the bolt, nut, washer, and spacer into the
assembly (Fig. 59).
Note: The idler belt has to be installed between the spacer
and PTO belt idler pulley.
7. Install the clutch retaining strap and plug the clutch
terminal into the main wire harness (Fig. 58).
1
4
m–3748
M–4373
3
2
5
Figure 58
1. Clutch
2. Clutch retaining strap
3. Clutch terminal
4. PTO belt
5. Machine frame
m–4311
1
2
3
4
5
Figure 59
1. Clutch pulley
2. PTO drive belt
3. Drive belt idler pulley
4. Idler bracket assembly
5. Spacer, bolt, nut, and
washer (remove)
8. Check the belt tension. The center bolt of the spring
loaded idler must be between the two alignment holes in
the left support plate (Fig. 60).