Buhler 485, 535, 435 manual Lubrication & Maintenance Every 10 Hours or Daily Operation

4-11 Section 4 - Lubrication & Maintenance

Every 10 Hours or Daily

Operation 3

Check the Fan/Water Pump Belt Tension

The engine fan and water pump share the same drive belt (2).. A self adjusting spring-loaded idler (1) keeps a constant tension on the belt.. If the belt is found to be loose, check the pivot of the spring-loaded idler for binding.. If the spring-loaded idler is operating fine, belt replacement maybe necessary..

If the belt requires replacement, install a square end of a 19 mm (3/4") breaker bar into the slot of the idler and release the spring tension by pushing down on the wrench.. Slip the old belt off the engine pulleys and install a new belt.. Release the wrench and allow the spring-loaded idler to apply belt tension..

Replacement Fan/Water Pump Belt P/N: 86033867

Operation 4

Check the Tension on Alternator/A/C Compressor Belt

The alternator and AC compressor share the same drive belt (4).. A self adjusting spring-loaded idler (3) keeps a constant tension on the belt.. If the belt is found to be loose, check the pivot of the spring-loaded idler for binding.. If the spring-loaded idler is operating fine, belt replacement maybe necessary..

NOTE: The fan/water pump belt has to be removed first to gain access - see above.

If the belt requires replacement, install a square end of a 13 mm (1/2") breaker bar into the slot of the idler and release the spring tension by pushing up on the wrench.. Slip the old belt off the engine pulleys and install a new belt.. Release the wrench and allow the spring-loaded idler to apply belt tension..

Replacement Alternator/A/C Compressor Belt P/N: 86033868

NOTE: Drive belts are available from your Buhler Versatile dealer.

NOTE: Refer to your Cummins Engine Manual for more information regarding belt replacement, wear guidelines, and pulley alignment.

Figure F4-24 shows the correct routing of the belts..

•Fan/water pump belt (2)

•Alternator/AC compressor belt (4)

4

3

2

1

F4-10

2

4

F4-24

435/485/535