Ingersoll-Rand QA1L High Torque Series, Руководство по эксплуатации и обслуживанию

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32
MAINTENANCE SECTION
The thread in the following step is a left–hand
thread. Rotate the Nut counterclockwise to
tighten it.
26. Thread the Grip Retaining Nut (82) onto the Clutch
Housing to secure the Grip Assembly. Use a pin type
spanner wrench to tighten it until the Grip is not
loose.
27. If the Cover O–ring (84) inside the Clutch Adjusting
Hole Cover (83) is worn or damaged, replace it and
install the Cover on the Clutch Housing.
28. Install the large end of the Angle Wrench Drive
Adapter (85) on the hex end of the Clutch Shaft (52
or 68).
29. Slide the Drive Adapter Bearing (86) onto the small
end of the Adapter and into the bearing recess in the
Clutch Housing.
30. Place the Thrust Washer (90) against the Drive
Adapter Bearing.
The thread in the following step is a left–hand
thread. Rotate the Coupler counterclockwise to
tighten it.
31. Thread the Front Gear Case Coupler (89) onto the
Clutch Housing and tighten the joint between 15
and 20 ft–lbs. (20 and 27 Nm) torque.
32. Engage the spline of the Drive Adapter with the
internal gears of the Intermediate Spindle Assembly
(88) while threading the assembled Front Gear Case
(87) into the Coupler. Tighten the joint between 15
and 20 ft–lbs. (20 and 27 Nm) torque.
33. Position the Housing Lock Spacer (94) in the Front
Gear Case with the tabs of the Spacer going into the
notch openings.
The thread in the following step has a left–hand
thread. Rotate the Nut counterclockwise to
tighten it.
34. Orient the assembled Angle Head to the desired posi-
tion and insert the notched end of the Angle Head
into the Front Gear Case to engage the tabs of the
Spacer. While compressing the Clutch Return Spring
(46 or 65) with the Angle Head, thread the Coupling
Nut (104) onto the Front Gear Case and tighten it
between 2 and 5 ft–lbs. (2.7 and 6.8 Nm) torque.
TESTING THE TOOL
Before placing the tool back in service, test the tool in a
run down application to determine if adjustments are
necessary to satisfactorily perform the operation. Since a
number of interrelated adjustments can affect tool
performance, only experience, along with trial and error,
can dictate which adjustment or combination of
adjustments will provide the desired results.
The Clutch Spring (59 or 75), the clutch adjustment
procedure, the exhaust flow, the length of the Push Rod
(35) and the length of the Shutoff Valve (21) can
individually or collectively have an effect on torque
and/or speed. Always try to make adjustments before
replacing or attempting to modify components.
If adjustments are unable to provide the desired torque, it
may be necessary to install a lighter or heavier Clutch
Spring.
If the tool ratchets when operated but fails to shutoff, it
may be necessary to shorten the Push Rod. Only shorten
the Push Rod in small increments. Increments between
0.005” and 0.010” (0.13 and 0.25 mm) are recommended.
If the tool stalls and does not shutoff, runs slower than
normal or has low power, the Shutoff Valve may require
lengthening. To lengthen the Shutoff Valve, grasp the
stem between two pieces of rubber or other non–slip,
non–marring material and rotate the molded nut
counterclockwise. Rotating the nut one half revolution
will lengthen the Valve approximately 0.009” (0.23 mm).
Should the stem of the Valve become bent, marred,
nicked or damaged in any way during the adjustment
process, replace it.