25
9 INCH CHIPPER
ENGLISH
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.
2. Open access cover (see Section 5.3).
3. Remove the lock pin from storage position (see
Figure 5.6).
4. Turn check valve clockwise to engage the jack pump.
5. Pump the handle to raise the feed roller until the lock
pin position aligns with one of the support bracket
holes.
6. Secure the position by putting the lock pin through the
support bracket and lock pin position.
7. Clean the debris away from the chipper rotor. Turn
the rotor by hand to be sure it is free to rotate. Be
careful to avoid the chipper blades when cleaning out
the debris.
8. Remove the lock pin and put it back in storage
position.
LEAVING THE LOCK PIN IN ANY OTHER
POSITION MAY INTERFERE WITH FEED ROLLER
OPERATION.
9. Turn the check valve counterclockwise to disengage
the pump and lower the jack.
10. Close access cover and secure (see Section 5.3).
11. Start the engine. Follow start up procedures in
Section 4.1.
FEED
ROLLER
JACK
LOCK PIN
POSITION
CHECK VALVE
LOCK PIN
STORAGE
SUPPORT BRACKET
Figure 5.6, Feed Roller Jack
Check the condition of the drive belt annually or after
every 25 hours of operation, whichever comes first. If
the belt is cracked, worn, frayed, or stretched, replace it.
Replace belt with original banded belt type only. Do not
use single type belts.
To replace the belt:
1.
Shut off engine.
2. Remove drive belt shield.
5.11 DRIVE BELTS
5.12 ROTOR BEARINGS
Figure 5.7, Drive Belt
5.12.1 REMOVING BELT SIDE BEARING
1. Open access cover (see Section 5.3). Tilt access
cover over to allow rotor access.
2. Remove large belt guard.
3. Remove belt guide spacer.
4. Remove the belt guide by removing the 3/8" bolts on
the engine side and the 5/16" nuts on the housing
side.
5. Loosen bolts on hydraulic pump and remove hydraulic
pump belt.
3. Remove the hydraulic pump belt by loosening the
bolts on the hydraulic pump.
4.
Take the tension off the drive belt by depressing the
belt engagement pedal. Remove the drive belt from
pulleys.
5. Install the new drive belt on pulleys.
6. Check pulley alignment with a straight edge and
adjust engine if needed.
7. Check belt tension and adjust if needed. The belt
deflection at the center of the belt should be 7/16"
when a 20 lb. load is placed against the belt. See
Figure 5.7.
8. Reinstall hydraulic pump belt. Readjust hydraulic
pump belt tension by sliding the hydraulic pump in
the mounting slots. Tighten bolts.
9. Replace belt guard.
10. Depress belt engagement pedal, start engine, engage
drive belt, and test unit. Readjust pulleys and belt
tension if needed.
