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ASSEMBLY
General Instructions
1. Always press on the inner ring of a ball–type bearing
when installing the bearing on a shaft.
2. Always press on the outer ring of a ball–type bearing
when pressing the bearing into a bearing recess.
3. When grasping a tool or part in a vise, always use
leather–covered or copper–covered vise jaws to protect
the surface of the part and help prevent distortion. This
is particularly true of threaded members and housings.
4. Except for bearings and mechanism parts, always
clean every part and wipe every part with a thin film of
oil before installation.
5. Wipe a thin film of mechanism fluid on all internal
mechanism components before installing them in the
mechanism.
6. Apply a film of o–ring lubricant to every o–ring before
installation.
Assembly of the Motor
1. Position the Exhaust Deflector Assembly (18) in the
bottom of the motor housing handle and install the
Deflector Retaining Pin (19) to secure it in position.
It may be necessary to slide the Assembly in or out
in order to align the groove in the Assembly with
the pin hole.
2. Install the Throttle Rod Seal (3) in the groove on the
large hub of the Throttle Rod (2).
3. Install the Throttle Valve Seal (5) in the groove on the
large hub of the Throttle Valve (4).
4. Slide the Throttle Valve, Valve Seal end first, onto the
Throttle Rod.
5. Secure the Throttle Valve Assembly by installing the
Throttle Valve Retainer (6) in the small groove on the
Throttle Rod.
6. Install the Throttle Bushing Seal (8) on the hub end of
the Throttle Bushing (7).
7. Position the Throttle Lever (12) on the Reverse
Valve (9) and secure it by installing the Reverse Lever
Retaining Pin (13).
8. Slide the Throttle Bushing Assembly, seal end leading,
onto the shaft of the Throttle Rod.
9. Slide the Reverse Valve, lever end trailing, onto the
shaft of the Throttle Rod and into the Throttle Bushing
until the detent hole in the Valve reaches the end of the
Bushing.
10. Install the Reverse Valve Detent Spring (11) followed
by the Reverse Valve Detent Ball (10) in the hole in
the Reverse Valve. While compressing the Spring with
the Ball, continue sliding the Valve into the Bushing
until the Detent Ball enters one of the detent pockets
inside the Bushing.
11. Position the Trigger (14) on the shaft of the Throttle
Rod and secure it by inserting the Trigger Retaining
Pin (15) through the Trigger and shaft.
MAINTENANCE SECTION
12. Insert the assembled Trigger into the Motor Housing.
13. Using an arbor press and a piece of tubing that
14. Stand the Rotor (25) on the table of an arbor press. It
15. Place a 0.001" (0.025 mm) shim on the upward surface
16. Coat each Vane (26) with a thin film of oil and insert a
17. Install the Cylinder (23) over the Vanes and Rotor with
18. Place the Front End Plate and Bearing against the face
19. Insert the Rear Motor Seal (17) in the bottom of
20. Insert the assembled motor, Rear End Plate leading,
23
Make certain the widest end of the Trigger is nearest
the motor bore and the notch across the outside of the
Throttle Bushing aligns with hole in the Motor
Housing for the Throttle Retaining Pin (16). Install the
Pin making certain it captures and secures the
assembled Trigger.
contacts the outer ring of the bearings, press the Front
End Plate Bearing (29) into the Front End Plate (27)
and the Rear End Plate Bearing (22) into the Rear End
Plate (21). (Refer to Dwg. TPD1274.)
END
PLATE
should be upright on a flat metal plate having a
clearance hole for the shaft. The shaft with the hex
must be downward.
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.
Vane into each of the rotor vane slots with the straight
edge of the Vane outward.
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.
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.
the Housing motor bore.
into the Motor Housing making sure the End Plate
Alignment Pin (28) 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.)
TUBING
BEARING
(Dwg. TPD1274)
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