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the Planet Gear Head Spacer (39). For Series QS05 and QS09,
lightly rap the motor end of the Gear Case on a wooden work
bench top to remove the three Planet Gears (37), the Planet Gear
Head Assembly (36) and the Planet Gear Head Spacer (39). For
Series QS15 and QS20, lightly rap the motor end of the Gear Case
on a wooden work bench top to remove the three Planet Gears
(37), the Rotor Pinion (38), the Planet Gear Head Assembly (36)
and the Planet Gear Head Spacer (39).
If the Spindle Assembly is being removed or replaced, the
Spindle Bearing and Spindle Cap Bearing may be damaged
during the removal process. We recommend that new
replacement bearings be available for installation when the tool
is reassembled.
3. Stand the Gear Case on the table of an arbor press with the
threaded end of the Spindle Assembly (40) upward. Using a rod
slightly smaller than the spindle shaft, press the Spindle Assembly
out of the Spindle Cap Bearing (49) and Spindle Bearing (46).
4. Insert a long, small drift through the central opening of the
Spindle Bearing and push the Bearing Spacer (47) off to one side.
Using a hammer with the drift, tap the inner ring of the Spindle
Cap Bearing. Repeat the process at several points until the
Bearing is free from the Gear Case. Remove the Bearing Spacer
from the Gear Case.
5. Using snap ring pliers, remove the two Bearing Stops (48).
6. Stand the Gear Case on the table of an arbor press with the
threaded end upward, and press the Spindle Bearing out of the
Gear case.
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.
Whenever 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, always clean every part and wipe every part
with a thin film of oil before installation.
5.
Apply O-ring lubricant to all O-rings before final assembly.
6.
Check every bearing for roughness. If an open bearing must be
cleaned, wash it thoroughly in a clean, suitable cleaning solution
and dry with a clean cloth. Sealed or shielded bearings should
never be cleaned. Work grease into every open bearing before
installation.
Assembly of the Housing
1.
Lubricate the Housing O-Ring (2) with O-ring lubricant and install
it at the bottom of the cylinder bore in the Motor Housing (1).
2.
Inspect the face and O-ring on the hub of the Reverse Valve
Assembly (4) for nicks or damage. Replace the Reverse Valve
Assembly if any damage is evident.
3.
Lubricate the O-ring on the hub of the Reverse Valve Assembly
with O-ring lubricant and insert the Assembly, O-ring end leading,
into the cylinder bore of the Motor Housing. Push the Assembly
toward the bottom of the cylinder bore until it "snaps" into its
proper location.
4.
While holding the Motor Housing with the inlet end facing you
and the reverse valve slot upward, rotate the Reverse Valve
Assembly until the threaded hole in the valve body is positioned
at the right hand edge of the slot.
5.
Insert the pin end of the Housing Plug (3) into the hole in the
Reverse Valve while fitting the remainder of the Plug into the
recess in the Motor Housing.
6.
While holding the Plug in position, from the inlet end of the
Housing, slide the Housing Plug Cover (19) onto the
16576332_ed2
NOTICE
Disassembly of the Motor
1.
If the motor was not removed from the Housing (1) when the tool
was disassembled, slide the Motor Clamp Washer (32) off the shaft
of the Rotor (26) and remove the Motor Seal (31).
2.
Tap the Motor Housing on a block of wood to remove the motor
assembly from the Motor Housing.
3.
Using snap ring pliers, remove the Rear End Plate Assembly
Retainer (22) from the shaft of the Rotor.
4.
Pull the Rear End Plate Face Plate (20) and Rear End Plate
Assembly (21) off the hub of the Rotor.
5.
Using a piece of leather or other type of protective material, grasp
the shaft of the Rotor and pull the Rotor out of the Cylinder (23).
6.
Remove the Vanes (27) from the Rotor.
7.
Support the Front End Plate Assembly (28), as near the rotor body
as possible, on the table of an arbor press and press the Rotor
from the Front Rotor Bearing (30). Remove the Bearing from the
Front End Plate.
Disassembly of the Housing
1.
Pull the Housing Plug Cover (19) off the inlet end of the Motor
Housing (1).
2.
If the Housing Plug (3) does not drop out of the Housing when
the Cover is removed, tap the inlet end of the Housing on a block
of wood to dislodge the Plug from the Housing.
3.
Insert a 5/16" wooden dowel between 6 and 8 inches long, into
the inlet end of the Motor Housing and push the Reverse Valve
Assembly (4) out the motor end of the Housing.
4.
Use a hooked tool to pull the Housing O-Ring (2) out of the Motor
Housing.
7.
Housing. Make certain it captures the Plug when it moves along
the Housing and stops against the housing shoulder.
Assembly of the Motor
1.
Place the Front End Plate (28) on the splined shaft of the Rotor
(26) with the bearing recess away from the rotor body.
2.
Place the Front Rotor Bearing (30) onto the shaft and using a
sleeve or piece of tubing that contacts the inner race of the
Bearing, press the Bearing onto the shaft until the Front End Plate
nearly contacts the rotor body.
In the following step, the measurement must be made at the end
corner of the large rotor body.
3. The clearance between the Front End Plate and Rotor is critical.
While pressing down with your finger on the outer edge of the
Front End Plate on the bearing side, insert a 0.004" (0.1 mm) feeler
gauge between the face of the rotor body and the face of the End
Plate at a point that is 180 degrees from where the pressure is
applied. Refer to Dwg. TPA1740. To increase the gap, support the
End Plate and lightly tap the rotor shaft with a plastic hammer; to
decrease the gap, press the Bearing farther onto the rotor shaft.
PRESSURE
(Dwg. TPA1740)
NOTICE
FEELER
GAUGE
3
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