DR Power Walk-Behind 6.5 (Pre-August 2010) - Manual (Page 41)

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Drive Chain Replacement, Alignment and Tension
WHEN PERFORMING ANY MAINTENANCE, YOU MUST FIRST SHUT OFF THE ENGINE, WAIT FIVE (5)
MINUTES TO ALLOW PARTS TO COOL AND DISCONNECT THE SPARK PLUG WIRE, KEEPING IT AWAY
FROM THE SPARK PLUG.
Tools Needed:
•
7/16" Socket with 6" Extension
•
(2) 1/2" Wrench or Socket
•
Needle-Nosed Pliers
•
Flat Head Screwdriver
•
Pry Bar
Chain Removal and Replacement:
1. Block up the machine so that the rear Wheels are off the ground.
2. Remove the Belt Cover using a 7/16" Socket with a 6" Extension to remove the four (4) 1/4" Cover
Bolts (Figure 19 on page 33).
3. Using two (2) 1/2" Wrenches or Sockets, loosen the left side (viewed from behind Handlebars)
Axle Bearing Mount Bolts and then slide the Bearing forward to the end of its travel (Figure 22).
4. Rotate the Left Rear Wheel to bring the Drive Chain “Master Link” into view on the Axle Sprocket
(Figure 22).
5. Remove the Master Chain Link (Figure 23). First, remove the Lock Clip by spreading the Clip with a
Screwdriver and at the same time, slide the Lock Clip back off the Master Link pins with the
Needle-Nosed Pliers. Next, remove the Side Plate, and then remove the Master Chain Link.
6. Slowly feed out the old Drive Chain and remove the Chain.
7. Thread the new Drive Chain onto the sprockets.
Tip: Place the ends of the Chain on the Axle Sprocket; this makes it easier to hold the Chain in place
when you slide the new Master Link in place.
Figure 22 Figure 23
Master Link
Side Plate
Lock Clip
Master Link
Forward