4
DISASSEMBLY — GENERAL (ALL MODELS)
Unscrew (left hand threads) and remove the spindle assembly
No. 281345. Unscrew the gear case assembly and unplug the
transducer wiring . Then remove the gear case and transducer.
Push the wiring back into the connector block No. 203152. The
motor unit may now be removed from the backhead. See the
following paragraphs for complete disassembly instructions on
the various subassemblies.
CLUTCH DISASSEMBLY
Unscrew the adjustment nut, No. 867875. That will release the
adjustment lock plate No. 867876, both bearing races No.
863455, thrust bearing No. 847104, torque spring No. 867938,
ball retainer No. 867881, and six (6) steel balls No. 842162.
Wash the spindle assembly in a solvent. Remove the ball
retainer ring, No. 867923, and ball retainer plug, No. 867908.
Rotate the clutch spindle to allow the sixteen (16) steel balls, No.
844265, to drop out of the ball loading hole located in the clutch
cam, No. 867892. Separate the, clutch spindle and clutch cam
being careful not to lose the reset pin, No. 867888; reset spring,
No. 867895; sear plunger, No. 867886; plunger spring, No.
867896; and sear pin, No. 867909.
TRANSDUCER DISASSEMBLY
Remove the ring gear and transducer assembly from the rear of
the transducer housing. Remove the retainer ring No. 619017,
from the transducer and tap lightly on a soft surface to remove
bearing No. 847566. Then remove the transducer from the rear
of the ring gear.
GEAR CASE DISASSEMBLY
Single Reduction — 20 Gear Trains
The spider should be pressed out the rear of the gear case.
Remove the retainer ring No. 844364, and press the bearing No.
847147, out the front of the gear case.
If replacement of the idler gear pins is necessary, they should be
pressed out the rear of the spider. See Fig. 1 for replacement pin
height.
Fig. 1 — Single Reduction Spider
Multiple Reduction — -2, -5, -7, -10 Gear Trains
All spiders should be removed from the rear of gear case.
Remove the retainer ring No. 844364, and press the bearing No.
847147, out the front of the gear case.
If replacement of the idler gear pins is necessary, they should be
pressed out the rear of the spider. See Fig. 2 for replacement pin
height.
2nd Reduction
1st Reduction
Spider
Spider
Fig. 2 — Double Reduction Spiders
OPERATING & SERVICE INSTRUCTIONS
The torque of the 8MT & 8M nutrunner is controlled by the use
of a pressure regulator to change the stall torque of the tool. The
torque of the 8MA nutrunner is controlled by the use of a
CLECOMATIC automatic shut-off clutch. Accurate torque is
achieved by setting the CLECOMATIC clutch to the desired
torque.
CLUTCH ADJUSTMENT
Shut off air supply to the tool and rotate the adjustment cover,
No. 202829, 180° to uncover the adjustment slot in the clutch
housing. Rotate the spindle until the hole in the adjustment nut
is visible in the slot. Use
a 1/8" (3mm) diameter
pin to hold the nut. Use
a suitable tool to turn
the spindle in a coun-
terclockwise direction to
increase torque or
clockwise to decrease torque. Return the ad-
justment cover to its closed position after every
adjustment. Note: If the clutch is adjusted over the
maximum power output of the tool, the clutch will not function
and the tool will operate like a stall-type tool. Also, if the tool is
being operated at its upper torque limits, a drop in air pressure
could cause the clutch not to function due to a loss of motor
power and the tool will function like a stall-type tool.
FLOW VALVE
The flow valve No. 203036, can be adjusted with a screwdriver
clockwise to lower the RPM and counterclockwise to raise the
RPM of the tool.
AIR SUPPLY
The tool is designed to operate at 90 psig (6.2 bar) air pressure.
The air pressure should be checked at the tool's air inlet while the
tool is running. For maximum performance, use a 5/16" I.D. air
hose up to 8' in length. If additional length is required, a 3/8" I.D.
or larger hose should be connected to the 5/16" I.D. hose.
LUBRICATION
An automatic in-line filter-regulator- lubricator is recommended
as it increases tool life and keeps the tool in sustained operation.
The in-line lubricator should be regularly checked and filled with
a good grade of 10W machine oil. Proper adjustment of the in-
line lubricator is performed by placing a sheet of paper next to
the exhaust ports and holding the throttle open approximately 30
seconds. The lubricator is properly set when a light stain of oil
collects on the paper. Excessive amounts of oil should be
avoided.
Application of the tool should govern how frequently it is greased.
It is recommended that the idler gears and right angle gears
receive a generous amount of NLGI 2-EP grease through the
grease fittings after 40 hours of operation.
STORAGE
In the event that it becomes necessary to store the tool for an
extended period of time (overnight, weekend, etc.), it should
receive a generous amount of lubrication at that time and again
when returned to service. The tool should be stored in a clean
and dry environment.
OFF
.240
.255
Front
Rear
.360
.375
Front
Rear
.240
.255
Front
Rear
Содержание Cleco 88 Series
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