23
MAINTENANCE SECTION
Assembly of the Motor
1.
If the Reverse Valve Bushing Seal (10) was removed
from the reverse valve bushing, install a new Seal
inside the bushing.
2.
Install a new Reverse Valve Seal (9) on the Reverse
Valve (8).
3.
Being careful not the cut or nick the Seals, insert the
Reverse Valve, large hub trailing, into the Motor
Housing (1) from the lever side of the Housing. Make
certain the hole for the Reverse Lever Retaining Pin (4)
and the valve porting are properly aligned.
4.
Position the Throttle Lever (11) on the Housing and
secure it by pressing the Lever Retaining Pin (12)
through the Housing and Lever.
5.
Install the Throttle Rod Seal (6) in the groove on the
large hub of the Throttle Rod (5).
6.
Install the Reverse Lever Seal (3) on the hub of the
Reverse Lever (2).
7.
Insert the Throttle Rod Assembly, small end leading,
into the Reverse Valve Assembly followed by the
Throttle Rod Spring (7) and assembled Reverse Lever.
8.
Align the hole in the Reverse Lever with the hole in the
Reverse Valve and install the Reverse Lever Retaining
Pin in the aligned holes.
9.
Place the Exhaust Deflector Seal (14) on the inlet and
of the Motor Housing followed by the Exhaust
Deflector.
10. Thread the Inlet Bushing (15) into the small hub the
Housing and, after rotating the Deflector to the desired
position, tighten the Inlet Bushing between 30 and 35
ft–lb (40 and 47 Nm) torque.
11. Using an arbor press and a piece of tubing that
contacts the outer ring of the bearings, press the Front
End Plate Bearing (27) into the Front End Plate (25)
and the Rear End Plate Bearing (19) into the Rear End
Plate (18). (Refer to Dwg. TPD1274.)
TUBING
BEARING
END
PLATE
(Dwg. TPD1274)
12. Stand the Rotor (25) on the table of an arbor press. It
should be upright on a flat metal plate having a
clearance hole for the shaft. The shaft with the hex
must be downward.
13. Place a 0.001” (0.025 mm) shim on the upward surface
of the large portion of the rotor body. Using a piece of
tubing that contacts the inner ring of the bearing, press
the Rear Rotor Bearing and Rear End Plate, End Plate
leading, onto the shaft of the Rotor until the End Plate
contacts the shim. Remove the shim.
14. Coat each Vane (24) with a thin film of oil and insert a
Vane into each of the rotor vane slots with the straight
edge of the Vane outward.
15. Install the Cylinder (20) over the Vanes and Rotor with
the end of the Cylinder having the two holes in straight
alignment nearest the end face positioned away from
the Rear End Plate. Make certain the End Plate
Dowel (24) enters the hole in the face of the Rear End
Plate and not the porting slot.
16. Place the Front End Plate and Bearing against the face
of the Cylinder, Bearing end trailing. Make certain the
End Plate Dowel in that end of the cylinder enters the
hole in the End Plate and not the porting slot.
17. Place the Rear End Plate Spacer (17) against the Rear
End Plate making certain that the Rear End Plate
Dowel enters the hole in the Spacer and the external
slots align.
18. Insert the assembled motor, Rear End Plate leading,
into the Motor Housing making sure the End Plate
Alignment Pin (26) enters the proper notch in the
Housing. It may be necessary to tap the assembly into
position with a brass or plastic hammer. (Refer to
Dwg. TPD1279.)
(Dwg. TPD1279)
19. Grasp the handle of the Motor Housing in vise jaws
with the rotor shaft upward. Thread the Front End
Plate Spacer (29) into the Housing and using the end
plate spacer spanner, tighten the Spacer to 33 ft–lb
(45 Nm) torque. This is a left–hand thread; rotate the
wrench counterclockwise to tighten. (Refer to
Dwg. TPD1304.)
SPANNER
(Dwg. TPD1304)
