Toro Groundmaster Series Service Manual page 297

Idler Assemblies (continued)
Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A
The spring is under heavy load and can cause personal injury.
Be careful when removing tension from the torsion spring of the
idler arm.
7. Use a 3/8 inch or 1/2 inch drive ratchet or breaker bar in the idle arm to move
the idler arm away from the shoulder bolt.
8. Remove the shoulder bolt from the idler pivot plate then unload the idler
spring tension.
9. Remove the retaining ring that retains the idler arm to the idler pivot.
10. Remove the idler components as needed.
Installing the Tensioning Idler Assembly
Refer to Figure 132 for this procedure.
1. Tighten the lock nut securing the idler pulley to the idler arm from 108 to
135 N·m (80 to 100 ft-lbs).
2. Lightly grease the idler pivot and assemble the tensioning idler components
onto the idler pivot.
3. Secure the idler components to the idler pivot with the retaining ring.
4. Secure the idler assembly in a vise by clamping on the idler pivot plate.
The spring is under heavy load and can cause personal injury.
Be careful when applying tension to the torsion spring of the idler
arm.
5. Use a 3/8 inch or 1/2 inch drive ratchet or breaker bar in the idle arm to move
the idler arm (load the torsion spring) enough to install the shoulder bolt.
6. Install the shoulder bolt to the idler pivot plate. Tighten the flange nut from 45
to 55 N·m (33 to 41 ft-lb) and release the idler arm.
7. Secure the tensioning idler assembly to the cutting unit with the previously
removed fasteners.
8. Install the drive belt.
9. Grease the idler pivot and install the belt covers before returning the cutting
unit to service; refer to the cutting unit Operator's Manual.
Removing and Installing a Stationary Idler Assembly
Refer to Figure 132 for this procedure.
1. Park the machine on a level surface, lower the cutting unit, engage the
parking brake, set the key switch to the O
from the key switch.
2. Remove the belt covers from the cutting unit.
CAUTION
CAUTION
FF
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position and remove the key
Cutting Units: Service and Repairs