Toro Groundsmaster 5900 Series Service Manual page 474

Drive Belt Idler Assembly Removal
Drive Belt Idler Assembly Installation
Cutting Decks: Service and Repairs
(Figure
4. Use a ⅜" or ½" drive ratchet or breaker bar to relieve idler pulley tension
and remove drive belt.
5. Remove the retaining ring that secures the idler assembly to the idler pivot.
Be careful when removing the idler arm assembly. The idler torsion
spring is under heavy load and may cause personal injury.
6. For additional leverage, slide a nut driver or small piece of pipe onto either
end of the idler arm torsion spring. Apply enough load against the torsion
spring to release it from the spring stop or idler arm and carefully lift the idler
assembly from the idler pivot. Release the torsion spring slowly.
7. Check condition of idler pivot (item 6) and replace as needed.
g299398
1. Lower belt idler arm
2. Flange bushing (2 ea)
3. Lock nut
4. Idler pulley
5. Spacer
8. Replace worn or damaged idler components as needed
(Figure
Be careful when installing the idler arm assembly. The idler arm
torsion spring is under heavy load and may cause personal injury.
1. If previously removed, fit the large washer over the idler pivot.
2. For additional leverage, slide nut driver or small piece of pipe onto either end
of the idler arm torsion spring to. Apply enough load against the torsion
spring to release it from the spring stop or the idler arm and carefully lower
the idler assembly all the way onto the idler pivot. Slowly release the torsion
spring against the spring stop and idler arm.
3. Secure idler assembly to idler pivot with retaining ring.
328) (continued)
CAUTION
Figure 329
6. Flat washer
7. Screw
8. Washer
9. Upper belt idler arm
328)
CAUTION
Page 8–12
(Figure 329).
Groundsmaster ® 5900 & 5910
16227SL Rev B