22
6 INCH CHIPPER
SERVICE & MAINTENANCE
WARNING
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE, DISENGAGE THE
HYDRAULICS, OPEN SHIELD AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
If belt does not easily install, turn the two belt tension
bolts counterclockwise an equal number of turns and
slide engine closer to chipper until belt can be installed.
NOTE
9.
Turn the check valve counterclockwise to disengage the pump and lower the jack.
10. Close access cover and replace bolts.
11. Start the engine. Follow start up procedures in Section 4.1.
5.11 DRIVE BELTS
5.11.1 REPLACING ROTOR DRIVE BELT
Check the condition of the drive belt annually or after every
50 hours of operation, whichever comes first. If the belt is
cracked, worn, frayed, or stretched, replace it.
To replace the belt:
1.
Remove the belt guard (1).
2.
Remove idler pulley (2) by removing its 1/2 x 4-1/2" bolt (3), spacers, washer and nut.
3.
Remove the drive belt (4) from the pulleys and discard.
4. Inspect pulleys for wear. Replace the pulleys if they are cracked or worn so that the belt contact area is not smooth
and flat.
5. Install new belt on pulleys and lower belt idler.
6.
Reinstall the belt idler pulley into the idler arm weldment using the 1/2" hardware. Make sure the belt pin (5) is
positioned so that it does not contact the bolt while engaged and tighten securely.
7.
Check pulley alignment by placing a straight edge across the face of both pulleys. Adjust the lower (engine) pulley
if necessary to bring them into alignment.
8.
Check belt tension and adjust if needed. For proper belt tension, tighten the adjustment bolt on the tension spring(s)
of the idler pulley until there is 1/8-3/16" gap between the coils when the idler is engaged.
9. Reinstall belt guard.
1
2
3
4
5
5
2
5
2
Figure 5.6, Replacing Rotor Drive Belt