Powertrax 4120 - Manual (Page 8)

8
7. Remove the differential case and ring gear assembly
from the carrier along with the other adjuster and bearing race.
Disassembly of the Differential Case
1. Remove the ring gear bolts and then the ring gear.
It may need to be tapped off with a brass mallet. Mark it so that
it can be re-installed in the same rotational position as when re-
moved. Also mark the cap and case so that they can be reassem-
bled in the same position.
2. Remove the case cap. If it is pressed into position,
carefully pry it off. It may either be held on by the ring gear or
separately at the opposite end of the case, depending on the ve-
hicle.
3. Remove the pinion shaft(s), spider gears, side gears,
all washers, and the pinion shaft block.
4. Mark the side gear in the top of the case with a tag
or put it in a separate location so that it can be identified later. It
will be placed in the bottom of the case during assembly.
Inspection of the Parts
NOTE: These steps are important. The LOCK-RIGHT
utilizes your case, side gear thrust washers, pinion shaft and
axle shaft thrust block, (if used), and they must be in excellent
condition. The spider gears and washers are not used. If the
following inspection shows that anything is bad, buy new parts
from your dealer!
1. Thoroughly wash the differential case and remain-
ing parts with solvent, then dry them. Be sure to keep the side
gears separate, because the side gear in the top of the case will
be installed in the bottom of the case during assembly.
2. Inspect the side gears. They are very important to
the proper operation of your new LOCK-RIGHT. The following
three figures show various levels of wear on the teeth.
a) New side gear (Figure 4). Note that the surface has
a slight roughness that remains after the forging
operation.