Toro Greensmaster Flex 1800 Service Manual page 49

8. Disassemble idler arm assembly as needed (Fig.
23). Replace worn or damaged bearings and bushings.
A. Remove flange bushings from idler bracket. Dis-
card removed bushings.
B. Remove retaining ring from idler bracket. Slide
idler pulley from bracket shaft. Press ball bearings
from idler pulley. Discard removed bearings.
Installation
1. If idler arm assembly was disassembled:
A. Press new flange bushings into idler bracket.
B. Press new ball bearings fully into idler pulley mak-
ing sure to apply pressure to outer bearing race only.
Slide pulley assembly onto idler bracket and secure
with retaining ring.
2. Position idler arm assembly to drum drive housing
and secure with shoulder screw (item 15). Torque shoul-
der screw from 15 to 17 ft−lb (21 to 23 N−m). Check that
idler arm assembly can pivot freely after tightening
shoulder screw.
3. Carefully secure the end of the extension spring
(item 9) to idler arm.
4. Make sure that wave washer (item 4) is pressed into
bore of drum drive cover.
5. Position new gasket (item 3) to housing surface.
6. Slide drum drive cover onto drum drive assembly.
7. Install seven (7) washer head screws to secure cov-
er to housing. Tighten screws as follows:
A. First, using an alternating crossing pattern,
torque all screws from 15 to 40 in−lb (1.7 to 4.5
N−m).
B. Again using an alternating crossing pattern,
torque all screws from 85 to 95 in−lb (9.6 to 10.7
N−m).
8. Rotate traction engage/disengage lever to the en-
gaged position to tension the drum drive belt (see Disen-
gaging Drum Drive From Transmission in the General
Information section of this chapter).
9. Install transport wheels if they were attached (see
Transport Wheels in the Service and Repairs section of
Chapter 6 − Chassis and Controls).
10.Connect spark plug wire to spark plug.
Greensmaster Flex 1800/1820/2100/2120
3
5
1. Flange bushing (2 used)
2. Idler bracket
3. Ball bearing (2 used)
Page 4 − 19
2
4
Figure 23
4. Idler pulley
5. Retaining ring
Traction and Reel Drive System
1