DR Power Walk-behind 12.5 HP Tecumseh with 42 Lawn Deck - Manual (Page 40)

36 DR
®
WIDE-CUT LAWN MOWER
Removing and Replacing the Drive Chain
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE
OR INSPECTION, STOP THE ENGINE AND WAIT FIVE (5)
MINUTES TO ALLOW ALL PARTS TO COOL.
DISCONNECT THE SPARK PLUG WIRE, KEEPING IT AWAY
FROM THE SPARK PLUG.
Tools Needed:
• 1/2" Wrench or Socket (Chain Cover)
•
Flat-head screwdriver
•
Needle Nose Pliers
1. Remove the Chain Cover (Figure 28).
2. Remove the Tensioner Spring (Figure 29) .
3. Remove the Master Chain Link (Figure 30). First,
remove the Lock Clip by spreading the Clip with the
Screwdriver and at the same time, slide the Lock Clip
back off the Master Link pins with the Needle Nose
Pliers. Next, remove the Side Plate, and then remove
the Master Chain Link.
4. Slowly feed the Chain out.
5. Install and route the new Chain (Figure 29).
6. Add the Master Chain Link (Figure 30) in the reverse
order of step 3.
7. Replace the Tensioner Spring (Figure 29).
8. Replace the Chain Cover and tighten the Lock Nuts.
Figure 28
Figure 29
Figure 30
Chain Cover
Tensioner
Spring
Chain Routing
Master Link
Side Plate
Lock Clip