18
MAINTENANCE SECTION
Always wear eye protection when operating or
performing maintenance on this tool.
Always turn off the air supply and disconnect the air
supply hose before installing, removing or adjusting
any accessory on this tool or before performing any
maintenance on this tool.
DISASSEMBLY
General Instructions
1.
Do not disassemble the tool any further than
necessary to replace or repair damaged parts.
2.
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.
3.
Do not remove any part which is a press fit in or on
an assembly unless the removal of that part is
necessary for repairs or replacement.
4.
Do not disassemble the tool unless you have a
complete set of new gaskets and O–rings for
replacements.
Disassembly of the Impulse Mechanism
1.
For Model 55PQ1 or 60PQ1 use a pointed probe to
to push the Spring Seat (72) against the Retaining
Sleeve Spring (71). While the Spring is compressed,
use another pointed probe or thin blade screwdriver
to remove the Retaining Ring (73). Lift the Spring
Seat, Spring and Bit Retaining Sleeve (70) off the
Drive Shaft (68A) and remove the Bit Retaining
Ball (69).
For Models 55P or 60P, use a hooked wire to pull
the Retaining Pin Spring (64) out of the end of the
Drive Shaft (62) and remove the Socket Retaining
Pin (63).
2.
Using copper–covered vise jaws, carefully grasp the
flats of the Mechanism Cover (59) with the output
end of the Drive Shaft downward.
3.
Using an adjustable wrench, unscrew the the Motor
Housing Assembly (1) from the Mechanism Cover.
This is a left–hand thread, rotate the Motor Housing
clockwise to remove it. (Refer to Dwg. TPD1264).
4.
Lift the assembled motor off the Mechanism Cover
and pull the mechanism assembly out of the Cover.
Remove the Bushing Spacer (58).
5.
With the oil plug opening downward over a container,
rotate the drive shaft to purge the oil from the mecha-
nism. As an alternate method, using the syringe from
the Fluid Replacement Kit (Part No. EQ106S–K400),
purge the fluid from the first cavity. Then rotate the
Drive shaft to expose the second cavity and purge the
fluid using the syringe.
6.
Grasp the flats of the Housing Assembly (32) in vise
jaws with the output end of the Drive Shaft
downward.
7.
Insert the pins of the spanner plug from the
No. 55P–199 Tool Kit into the two holes in the
Housing Cap (38). Using a wrench on the plug,
unscrew and remove the Liner Cap from the
Mechanism Cover Assembly.
See Dwg. TPD1267.
SPANNER PLUG
COUNTERCLOCKWISE TO LOOSEN
(Dwg. TPD1267)
8.
Stand the disassembly arbor from the Tool Kit, large
end downward, on a workbench or the table of an
arbor press. Insert the output end of the Drive Shaft
into the central opening and either tap the Housing
downward off the components or use the pressing
sleeve in the Kit to press the Housing downward off
the components. See Dwg. TPD1268.
PRESSING
SLEEVE
HOUSING
TAP EDGE LIGHTLY
WITH BRASS HAMMER
OR USE PRESSING
SLEEVE FROM TOOL
KIT
DISASSEMBLY ARBOR
FROM TOOL KIT
(Dwg. TPD1268)
9.
Disassemble the components of the mechanism in the
sequence shown in Drawing TPA1558–2 on Page 13.
Содержание 55P3
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