DR Power 3-Point Hitch Rapid-Feed - Manual (Page 33)

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f) Move the Sheave Bushing in or out on the Flywheel Shaft as needed to take up the difference that
you measured for the gaps between the Straightedge and Belt.
NOTE: Prior to retightening the Bushing Retaining Bolts, The untightened Sheave will need to be
approximately 1/8" past the original straightedge to allow for compression of the Bushing during the
tightening process.
g) Slowly tighten the Bushing Retaining Bolts evenly and alternately (1/4 to 1/2 turn) starting with the
Bolt farthest from the Bushing Saw Slot.
h) Recheck the alignment after tightening the Bolts, and then retighten the Sheave Bushing Bolt.
NOTE: Make sure that the Belt or Sheave is not hitting the Hopper.
NOTE: The belt on your DR 3-POINT HITCH CHIPPER is tensioned with a spring-loaded idler arm and
pulley that is set at the factory. As the Belt stretches from use, the Belt tension may need to be
adjusted.
5. Reinstall the Belt Guard onto the Chipper.
Removing, Replacing and Adjusting the Chipper Knife and Wear Plate
Inspecting the Chipper Knife and Wear Plate
Routine inspection of the Chipper Knife and Wear Plate will ensure that your 3-Point Hitch DR Rapid
Feed Chipper is operating at full efficiency (see “Regular Maintenance Checklist” at the beginning of this
Chapter). Operating with a worn or damaged Chipper Knife or Wear Plate will cause extreme stress and
vibration to the machine and make chipping difficult for the operator.
VISUAL INSPECTION OF THE CHIPPER KNIFE BEFORE EACH USE
Tools Needed:
• 5/16" Wrench
ROUTINELY CHECK THE CHIPPER KNIFE FOR SHARPNESS. USING A DULL KNIFE WILL DECREASE
PERFORMANCE AND CAUSE EXCESSIVE VIBRATION THAT WILL CAUSE DAMAGE TO THE DR RAPID-
FEED CHIPPER.
ROUTINELY CHECK THE WEAR PLATE FOR A SHARP SQUARE EDGE. USING A ROUNDED OR
CHIPPED WEAR PLATE WILL DECREASE PERFORMANCE AND CAUSE EXCESSIVE VIBRATION THAT
WILL CAUSE DAMAGE TO THE DR RAPID-FEED CHIPPER.
DISENGAGE PTO, SHUT DOWN THE TRACTOR ENGINE, REMOVE THE KEY, WAIT FOR ALL MOVING PARTS
TO COME TO A COMPLETE STOP, DISCONNECT THE PTO SHAFT FROM THE TRACTOR, THEN WAIT 5
MINUTES BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.