Replace the inspection plate and reattach the springs.
Turn over by hand before applying power. The cutter bar should be adjust to .010 to .030 from the blades by
loosening the bolts in the bottom of the chute in the slotted holes and moving the bar on the slots.
Bolts are to be torqued to 35 foot-pounds.
The cutter bar can be reversed and/or resharpened.
Dull blades cause many problems, such as:
Seeming lack of power, plugging of the discharge chute, rough cutting with more vibration than usual,
feed roll shaft broken, main bearing working loose and the flywheel or blades hitting the case or bed
knife, feed roll kicking out of gear, and not feeding .
To properly sharpen the blades, sharpen an angle A and keep the angle about 35 degrees, the same as a new
set.
Area B cannot be rounded, or the blades will not pull the material into the head.
The best way to tell if the blades need sharpening is to watch the chips coming out of the chip discharge.
If they are long and stringy, the blades need to be service. Sometimes the blades feel sharp to the fingers, but
may be worn or rounded in area B. they need to be sharpened.
12.
LUBRICATION FREQUENCIES AND LOCATIONS
PTO shaft –2 zerks on universals once a day with multipurpose grease.
Slip Joint – lubricate with multi- purpose grease
Feed roll pivot – 2 zerks on underside of chute end.
Multi- purpose grease every 4 to 8 hours of operation. If dust or fine particles make pivot bind, unhook feed
roll springs, use cleaning solvent on pivot while moving up and down, wipe off, lubricate slides, and replace
springs.
Feed roll drive-shaft- zerk on feed roll drive-shaft lubricates both the slide and both universal joints. Add multi-
propose grease until grease shows at both universals every 4 to 8 hours of operation, particularly before each
use. Occasionally remove and thoroughly clean this assembly.
Feed roll clutch – while feed roll shaft is off, lubricate the feed roll clutch inside and outside with multi-purpose
grease.
Gear box – check separate sheet for gear box lubrication.
13.
PREVENTIVE MAINTENANCE
Check all bolts, set- screws and fasteners after running four hours, and once per day thereafter.
Check for loose belts and broken pulleys, loose springs, dry slides, and proper lubrication of both feed roll
drive-line and feed roll clutch.
The main drive belts on the chipper need to be tight. To tighten these belts, first loosen the four bottom nuts
that hold the jack-shaft bearing. Loosen them about three turns, then move the nuts on the top of the bearings
down and equal amount. Keep the jack-shaft parallel with the main shaft. Torque the bottom nuts 80 foot
pounds.
The belts of the main drive on the PTO chipper should be checked every eight hours of operation.
Look for cracks, looseness, or other signs of deterictation. For best performance, replace with a matched set
of eight belts.
