Advertisement
Disassembly of the Motor
1.
Grasp the Motor Case (1) in vise jaws with the shaft of the
Rotor (34) upward.
2.
Insert the pins of the End Plate Spacer Spanner-Jig F into the
holes in the Lower Plate Spacer (40). Using a wrench, unscrew
and remove the Spacer. This is a left-handed thread; rotate the
wrench clockwise to remove the Spacer. (Refer to Dwg. TPD1269.)
End Plate
Spacer Spanner
(Dwg. TPD1269)
3. Thread an M6 or M8 bolt into the hole in the rotor. Pull motor out
of housing using the bolt. Remove the bolt from the motor.
4. Remove the two O-Rings (29) from inside the Motor Housing.
5. Remove the Lower Plate (36), Lower Plate Bearing (37), Cylinder
Assembly (32) and Vanes (35) from the Rotor.
6. On the table of an arbor press, support the Upper Plate (30) with
blocks as close to the Rotor as possible and press the Rotor out of
the Upper Plate and Bearing (31).
7. To remove the Bearing from the Upper Plate, use a small drift or
pin punch through the central opening of the Upper Plate to tap
the Bearing out of the End Plate. (Refer to Dwg. TPD 1271).
Do not enlarge or damage the shaft hole in the End Plate.
(Dwg. TPD1271)
Assembly
General Instructions
1.
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.
2.
Always press on the inner ring of a ball-type bearing when
installing the bearing on a shaft.
3.
Always press on the outer ring of a ball-type bearing when
pressing the bearing into a bearing recess.
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.
7. Use Impulse Tool Rebuild Tools listed in Table 1 on page 7.
4
Clockwise
to Loosen
NOTICE
Disassembly of Throttle and Exhaust Element
1.
Remove Rubber Grip (41).
2.
Using a pin punch, tap the Throttle Retaining Pin (28) out of the
Handle. The Throttle Retaining Pin is protected by an embossed
circular pad of metal. Insert the pin punch into the middle of the
pad to locate the Pin. (Refer to Dwg. TPD1272-1).
(Dwg. TPD1272-1)
3. Grasp the Trigger (26) and pull the assembled throttle out of the
Motor Housing.
4. Using a pin punch and without damaging the Trigger, remove the
Trigger Pin (27).
5. Grasp the Reverse Lever (24) and pull the Reverse Valve (19) from
the front of the Throttle Bushing Assembly. The Reverse Lever
Detent Ball (23) and Reverse Lever Detent Spring (22) will fall out
of the Reverse Valve. Take care not to lose them.
6. Remove the Throttle Rod Assembly (16) from the rear of the
Reverse Valve.
7. If it is necessary to replace the Reverse Lever or Reverse Valve,
use a pin punch to tap out the Reverse Lever Pin (25) out of the
Reverse Lever. Separate the Reverse Lever from the Reverse Valve.
8. For Models Q60P3, Q70P3, Q70PQ1, Q80P3, Q80PQ1, and
Q90P3, using a punch, tap the Rubber Pad (15) of the Throttle
Valve Assembly in order to push the Throttle Bushing Cap (18a)
out of the back of the Throttle Bushing. The Spring (17a) and Ball
(18b) will fall out of the Throttle Valve (14). Take care not to lose
them.
9. For Model Q110P4, remove the Snap Ring (18) from the Throttle
Rod. Push the Throttle Rod out of the Throttle Rod Bushing (14a).
10. Unscrew and remove the Hose Joint (2).
11. Remove the Washer (4) and Strainer (3).
12. Remove the Exhaust Cover (5) and Silencer Sheets (6 and 7) from
Hose Joint.
13. Remove the O-ring (10) from the Motor Housing.
Assembly of the Motor, Throttle and Exhaust
Components
1.
Install the Silencer Sheet (6) over the Silencer Sheet (7) and
insert both inside the Exhaust Cover (5). Install the Exhaust Cover
containing both Silencers on the Hose Joint until it seats.
2.
Install the O-ring (10) in the Motor Housing (1).
3.
Thread the Hose Joint with the Exhaust components into the
Motor Housing and tighten to 18-23 ft-lb (25-31 Nm) torque.
4.
Put the Reverse Lever (24) on the Reverse Valve (19) and secure it
with the Reverse Lever Pin (25).
80213671_ed2
Advertisement
