Specifications

Driver-Controlled Main Differential Lock
92 MAINTENANCE MANUAL
2. Compress the shift shaft spring as required
and install it between the back of the fork and
differential wall inside the differential. Figure
6.17.
3. Align the spring and bore in the shift fork with
the shift shaft bore in the differential.
4. Install the shift shaft through the bore in the
differential, fork and spring until it is against
the shift fork. Figure 6.18.
7. Apply a continuous 0.06-inch (1.5 mm) diam-
eterbeadofLoctite®angesealant,Meritorpart
number 2297-D-7076, around the DCDL cylin-
der threads..
8.Turn the shift cylinder and piston assembly to
the right until it bottoms in the differential cast-
ing bore. Figure 6.20.
9. Position the shift collar over the fork. The large
splines of the collar must face toward the main
differential. Use a rubber mallet to tap the shift
collar through the nubs of the shift fork. Figure
6.21.
5. If required, lubricate a new O-ring with axle
lubricant. Install the O-ring into the piston
groove.
6. Install the piston and O-ring assembly into the
shiftcylinder,bevelendrst.Pushonthepiston
until it is against the bottom of the cylinder. Fig-
ure 6.19.
SHIFT SHAFT
SPRING
INSTALL SPRING
BEHIND FORK
Figure 6.17
Figure 6.18
SHIFT SHAFT
SHIFT FORK
BEVEL END
SHIFT CYLINDER
Figure 6.19
Figure 6.20