DR Power Walk-behind 8 - 15 HP (1998 - 2001) - Manual (Page 22)

18 DR
®
FIELD and BRUSH MOWER Safety & Operating Instructions
4. Mount the new blade, washer and lock
nut.
Note: Be sure the blade is seated
completely over the small ridge in the
spindle hub before tightening the lock
nut (Figure 24).
Differential
It is important to keep the differential parts lubricated. See page 12 for maintenance instructions.
To Adjust the Differential
If the differential locks while in the disengaged position, follow the instructions below to adjust it.
Tools Needed:
· (2) 1/2" deep well wrenches or sockets
· screwdriver
!
WARNING: Always remove the spark
plug wire before servicing your machine.
1. Loosen the bolt in Figure 25 about 1/2
turn.
2. With a screwdriver, push the shift
support toward the axle as far as it will
go and tighten the bolt (Figure 25).
3. Engage and disengage the differential
lever a few times, then check the
clearance between the hub sleeve and the
hub bell. There should be 1/8" clearance
when the lever is disengaged (Figure
26).
4. If needed, adjust the nut in Figure 26 and
repeat steps 3 and 4 to get the proper
measurement.
Figure 24
Figure 25
Figure 26