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the lock washers and flat washers.
11. Do not operate the unit without the deflector in place.
12. Before stopping the chipper, be sure the all of the material is out of the head and out
of the feed roll.
13. All of the material in the chute must be gone or the unit could jam on a small piece of
material. This can usually be cleared by turning the unit backwards by hand.
14. To replace the blades, take the PTO shaft out of gear, then turn off the tractor. The
blades on most models are replaced or turned by removing the inspection plate on
the side opposite the chute.
15. Unhook the feed roll springs, block the feed roll to maximum position, and, with an
Allen wrench on the chute side and a socket on the other, remove the bolts. (Be
careful not to drop any part inside.)
16. Remove the blade, clean the blade pocket and turn or sharpen the blade. Replace
blade.
17. Torque the bolts to 50 ft.-lbs. in all holes so the bolts are straight through the
flywheel. A small screwdriver or ice pick works well to clean pockets for the Allen
wrench. Replace the inspection plate and reattach the springs.
18. Turn over by hand before applying power.
19. The cutter bar should be adjusted to 0.010 to 0.030" from the blades by loosening
the bolts in the bottom of the chute in the slotted holes and moving the bar on slots.
20. Bolts are to be torqued to 35 ft.-lbs.
21. The cutter bar can be reversed and/or resharpened.
22. 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 housing 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.
INSPECTION, MAINTENANCE AND CLEANING