CALL TOLL FREE 1-800-DR-OWNER 35
Adjusting or Removing and Replacing the Drive Belts
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION, STOP THE ENGINE, WAIT FIVE
(5) MINUTES TO ALLOW ALL MOVING PARTS TO COME TO A COMPLETE STOP AND COOL. DISCONNECT
THE SPARK PLUG WIRES, KEEPING THEM AWAY FROM THE SPARK PLUGS.
USE ONLY DR BELTS ON YOUR MACHINE. THE BELTS HAVE BEEN THOROUGHLY TESTED AND
PROVEN FOR MANY HOURS OF USE.
The belts on your DR ROAD-TOWABLE CHIPPER should deflect 3/8" under approximately three (3)
pounds of pressure as shown in Figure 13; if they do not, adjust per the following directions.
Tools Needed:
• (2) 1/2" Wrench
• 7/16" Wrench (if necessary)
1. Remove the Belt Guard by removing the retaining Bolts using a 1/2" Wrench.
2. Loosen the four (4) Engine Bolts (2 in the Front and 2 in the Rear) using two (2) 1/2" Wrenches, one
(1) on the Bolt and one (1) on the Nut underneath (Figure 14 on page 36).
3. Tighten or loosen the nut on the Belt Tensioner (Figure 14 on page 36) using a 1/2" Wrench until you
have the correct tension as shown in Figure 13.
4. Retighten the four (4) Engine Bolts.
5. Check the alignment of the Clutch with the Drive Pulley by placing a straightedge across both faces as
shown in Figure 15 on page 36. If adjustment is necessary, correct the alignment as follows:
a) Loosen the Drive Pulley Hub Bolt with a 7/16"
Wrench (Figure 16 on page 37).
b) Remove the three (3) Hub Retaining Bolts using a 7/16"
Wrench (Figure 16 on page 37).
c) Reinstall the three (3) Bolts in the unused Threaded Holes (Figure 16 on page 37) adjacent to the
three (3) Hub Retaining Bolt holes.
d) Slowly tighten the Bolts evenly and alternately (1/4 to 1/2 turn) starting with the Bolt farthest from
the Bushing Saw Slot (this acts as a Hub puller) until the Bushing releases from the Rotor Shaft
(Figure 16 on page 37).
Figure 13
3/8"
Straight Edge
Clutch Drum
Chipper Drive Pulley
3 lbs. of pressure required
to move Belts 3/8"
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