Greensmaster Flex 21Traction and Reel Drive System (Rev. C) Page 4 – 16
Traction Drive Idler Pulley and Bearings
Removal
1. Park mower on a level surface. Make sure engine is
OFF. Remove high tension lead from the spark plug.
2. Remove transport wheels if attached (see Wheels in
the Service and Repairs section of Chapter 6 – Chassis
and Controls.
3. Remove traction drive belt cover.
4. Remove cap screw, lock washer, and flat washer that
positions the idler bracket to the side plate of the mower
(Fig. 25).
5. Remove cap screw, spacer, and flange nut on which
the idler assembly pivots (Figs. 24 and 25). Remove
idler assembly.
6. If idler pulley or bearings require replacement:
A. Remove and discard retaining ring (early mod-
els). Pull bearings and pulley from idler.
B. Press bearings from pulley sleeve.
Installation
1. Park mower on a level surface. Make sure engine is
OFF. Remove high tension lead from the spark plug.
2. If idler pulley or bearings were removed:
A. Press bearings into pulley sleeve making sure to
apply pressure to outer race only.
B. Install pulley assembly onto idler shaft pressing
on inner bearing race. Secure with new retaining ring
(early models).
3. Position idler assembly using cap screw, spacer, and
flange nut (Figs. 24 and 25). Tighten flange nut. Check
that idler assembly can pivot after tightening.
4. Install cap screw, lock washer, and flat washer that
positions the idler bracket to the side plate of the mower
(Fig. 25).
5. Adjust traction belt tension (see Traction Drive Belt
Adjustment in this chapter). Reinstall drive belt cover.
6. Replace transport wheels if they were attached (see
Wheels in the Service and Repairs section of Chapter 6
– Chassis and Controls).
1. Idler pulley
2. Idler bracket
3. Flange nut
Figure 24
1
2
3
1. Side plate
2. Idler bracket cap screw
3. Idler pivot cap screw
Figure 25
2
1
3
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