7. Install the Drive Shaft Seal (56) followed by the Seal
Back–up Ring (57) on the Drive Shaft against the hub.
Refer to Dwg. TPD1309.
SEAL BACK–UP RING
DRIVE SHAFT SEAL
8. The Torque Adjustment Screw (30) can only be
installed from the liner end of the Impulse Housing
(29). If the Torque Adjustment Screw was removed,
proceed as follows:
a. Insert a 1.5 mm hex wrench into the threaded hole
for the Torque Adjustment Screw from the oil plug
end of the Housing.
b. From the opposite end of the Housing, install the
hex of the Torque Adjustment Screw onto the hex
wrench.
c. Push the Screw and wrench toward the threaded
hole until it contacts the face of the Housing.
d. While applying finger pressure to the rivet end of
the Screw, rotate the wrench counterclockwise to
thread the Screw into the Housing. Continue rotating
the Screw until the rivet end stops against the face of
the Housing.
e. Insert the two Adjustment Screw Plug Locks (31)
and the Plug Lock Spring (32) into the crosshole
leading to the Adjustment Screw. Thread the Plug
Lock Screw (33) into the same hole to capture the
components. Refer to Dwg. TPD1310.
LOCK SPRING
RIVETED END
TORQUE ADJUSTMENT SCREW
MAINTENANCE SECTION
(Dwg. TPD1309)
LOCK SCREW
PLUG LOCKS
(Dwg. TPD1310)
9. If the Oil Stop Cap Assembly (51) was removed from
the Front Liner Cover (47), install the Stop Cap O–ring
(52) and Back–up Ring (53) in the groove of the Cap
and insert the assembly into the Cover. Refer to
Dwg. TPD1311.
BACK–UP RING
STOP CAP O–RING
OIL STOP CAP
10. Install the Liner Cover O–ring (37) in the groove on the
large hub of the Rear Liner Cover (36). Align the pin
holes in the face of the Cover with the two Liner Pins
(39) at the rear of the Liner and place the Cover against
the Liner. A groove will be formed between the Liner
and Cover for the Rear Liner Seal (55). Do not attempt
to put the Seal in the groove at this time.
11. Align the pin holes in the Front Liner Cover (47) with
the Pins in the front face of the Liner and place the
Cover against the face of the Liner. Another groove will
be formed between the Liner and Cover for the Front
Liner Seal (54). Install both the Front and Rear Liner
Seals in the grooves at this time and stand the assembly
on the workbench with the output end of the Drive Shaft
upward. Refer to Dwg. TPD1312.
12. Apply a thin film of grease to the Liner O–ring (34) and
install it in the forward bore of the Housing.
13. Lubricate the Front and Rear Liner Seals and after
orienting the Housing to the proper position, install the
Housing over the Liner.
25
FRONT LINER COVER
(Dwg. TPD1311)
LINER SEALS
(Dwg. TPD1312)