Dodge RAM TRUCK 1500 1995 Service Manual page 1601

21 - 320 NV 021 PTO ADAPTER
B R
-406
Fig. 31 input Bearing Removal
(28) Inspect condition of needle bearing in input
gear. If bearing is rough/noisy, worn, or brinnelled,
remove bearing as follows:
(a) Turn bolt of Puller MD998346 to retract
puller jaws. Then position puller jaws under bear­
ing (Fig. 32).
(b) Tighten puller bolt (Fig. 32) to expand puller
jaws and secure them under bearing.
(c) Grip puller bridge and turn puller nut clock­
wise to draw bearing out of gear (Fig. 33). Note
that bearing has built in cup plug (Fig. 34).
SPECIAL
TOOL
MD998346
J9421-411
Fig. 32 Tightening Puller Bolt To Seat Jams Under
Bearing
ADAPTER CLEANING AND INSPECTION
Clean the adapter components with solvent. Dry all
the parts (except bearings) with compressed air. Al­
low bearings to air dry, or wipe them dry with clean
shop towels.
Inspect the front case and rear extension (Fig. 35),
for cracks, damaged threads, or scored mating sur­
faces. Minor scratches and nicks can be smoothed off
J9421-412
Fig. 33 Tightening Puller Nut To Pull Bearing From
Gear
Fig. 34 Bearing Removed From Gear
with emery cloth. Damaged threads can be repaired
with Heli-Coil, stainless steel thread inserts.
Be sure the front case sector bore, vent tube, and
mounting studs are in good condition (Fig. 35). Re­
place the extension oil seal if it is cut, or torn. Also
check the retaining ring in the extension interior
(Fig. 36). This ring secures the mainshaft output
bearing to the extension.
The extension has a bushing at the rear. If the
bushing is worn, remove the seal. Then remove the
bushing by cutting and collapsing it with a cape
chisel. A new bushing can be installed with any suit­
able size installer tool similar to 5065 or 5062.
Slide the PTO gear onto the input gear and check
fit (Fig. 37). Replace either gear if any gear teeth, or
splines are damaged. Also check the bearing/seal sur­
face of the input gear. Small scratches on this surface
can be smoothed with 320/400 grit emery cloth if nec­
essary.
The various snap rings used in the adapter should
be replaced during overhaul. This is recommended as