DR Power TPH-184CHP - Manual (Page 19)

SECTION V - MAINTENANCE AND STORAGE
IMPORTANT: The knife should be checked for sharpness and the bolts attaching them to the flywheel for
tightness every 8-10 hours of operation.
IMPORTANT: Every time you perform maintenance or any kind of service or check on the knife, be sure to
check the gap between the knife and wear plate for proper setting.
If the cutting mechanism strikes any foreign object or if your machine should start making an unusual
noise or is vibrating, stop the engine and disconnect the P.T.O shaft before you:
a. Inspect and examine for damage.
b. Repair o replace any damaged parts before restarting and operating the machine.
1. When not in use, your shredder/chipper should be stored out of the reach of children.
2. After every 8 hours of operation, lubricate the chipper side and drive side bearings. To do this, wipe all dirt, etc.,
from the grease fittings with a clean cloth, then apply no more than 3 shots of quality general-purpose grease with
a hand-pumped grease gun. Over lubrication can also damage bearings. Also, check the bearing collar set
screws regularly to be sure they are tight. If they are loose, reset them with Loctite 243, obtainable at any
hardware store.
3. When the steel chipping knife needs replacing or sharpening, refer to the section on removal, sharpening and re-
installation.
4. Care must be exercised when sharpening the knife to maintain the correct bevel and a straight edge. Refer to
sharpening directions. When you install a knife, the clearance between the knife and wear plate must be checked
and set. This clearance or gap should be set to 1/16” (see figure 1).
FLYWHEEL
CHIPPER KNIFE
WEAR PLATE
1/16" GAP
Figure 1
5. To adjust this clearance, loosen the three ¼” nuts and bolts holding the wear plate in place. The wear plate can
be slid up or down (in or out) to achieve the correct gap setting. Tighten the nuts and bolts when the wear plate is
in the correct position. Be certain the flywheel rotates without hitting anything before starting the chipper.
6. If the gap between the wear plate and the knife is not set correctly, you will have excessive vibration when
chipping and the blade will seem to be dull. This should be checked every 8-10 hours of operation.
7. If at any time it becomes necessary to disassemble the chipper for repairs, the chipper disk must be re-installed in
exactly the same position on the rotor shaft.
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