Greensmaster Flex 18/21 Traction and Reel Drive SystemPage 4 – 11
Traction Drive Idler Pulley and Bearings
Removal
1. Park machine on a level surface. Make sure engine
is OFF. Remove spark plug wire from the engine spark
plug.
2. Remove transport wheels if attached (see Transport
Wheels in the Service and Repairs section of Chapter 6
– Chassis and Controls).
3. Remove traction drive belt cover.
4. Remove cap screw and tab washer that secures the
idler bracket to the side plate of the mower (Fig. 14).
5. Remove cap screw and shoulder nut on which the
idler assembly pivots (Figs. 13 and 14). Remove idler
assembly.
6. If idler pulley sleeve or bearings require replace-
ment:
A. Pull bearings and pulley sleeve from idler.
B. Press bearings from pulley sleeve.
Installation
1. Park machine on a level surface. Make sure engine
is OFF. Remove spark plug wire from the spark plug.
2. If idler pulley sleeve or bearings were removed:
A. Press bearings into pulley sleeve making sure to
apply pressure to outer bearing race only.
B. Install pulley assembly onto idler shaft pressing
on inner bearing race.
3. Position idler assembly using cap screw and shoul-
der nut (Figs. 13 and 14). Tighten shoulder nut. Check
that idler assembly can pivot freely after tightening
shoulder nut.
4. Install cap screw and tab washer that positions the
idler bracket to the side plate of the mower (Fig. 14).
Make sure that washer tab is in slot and orientated
down.
5. Adjust traction belt tension (see Operator’s Manual).
6. Install traction drive belt cover and secure with flange
nut. Torque flange nut 100 in–lb (11.3 N–m).
7. Replace transport wheels if they were attached (see
Transport Wheels in the Service and Repairs section of
Chapter 6 – Chassis and Controls).
8. Connect spark plug wire to spark plug.
1. Gearbox axle shaft
2. Frame
3. Idler bracket
4. Bearing
5. Pulley sleeve
6. Traction drive belt
7. Traction drive pulley
8. Traction driven pulley
9. Shoulder nut
10. Cap screw
11. Cap screw
12. Tab washer
Figure 12
5
3
4
6
7
1
2
8
9
10
11
12
1. Idler pulley
2. Idler bracket
3. Shoulder nut
Figure 13
2
1
3
1. Side plate
2. Idler bracket cap screw
3. Idler pivot cap screw
Figure 14
2
1
3
Traction and Reel
Drive System
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