4
GENERAL INFORMATION
AIR SUPPLY
Thetool isdesigned to operate on 90 psig (6.2 bar) airpressure
(measured at the tool air inlet with the tool running) using a
1/2" (12.7mm) hose up to 8' (2.4m) in length. An automatic
in-line filter-lubricator is highly recommended to supply the
tool with cleanlubricated air. This will keepthe tool in sus-
tained operation and increase its service life.
The air hose should be cleared of accumulated dirt and
moisture, then one (1) teaspoon (5ml) of 1 OW machine oil
should be poured into the tool's air inlet before connection
the hose to the tool.
IMPORTANT: If a puick-disconnect coupling is used with
the tool, it should be separated from the tool by a whip hose.
All tools and hoses should be installed by trained, compe-
tent personnel. Hoses and fittings should be inspected
regularly for worn or damaged areas and replaced if neces-
sary.
LUBRICATION
An automatic in-line filter-lubricator is recommended as it
increases tool fif e and keeps the tool in sustained opera-
tion. The in-line lubricator should be regularly checked and
filled with a good grade of 1 OW 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. In the event an
in-line lubricator is not used, the oil reservoir in the handle
should be utilized.
The oil reservoir marked "30W oil" should not require
attention until thetool istorn down for inspection purposes;
however, if the tool is on the application for an unduly long
period of time, the plug should be removed and the reservoir
checked for the presence of oil. If oil is required, approxi-
mately 1-1/4 fluid ounces (40ml) of 30W oil should be added
to the oil reservoir.
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 atthat time
and again when returned to service. The tool should be
stored in a clean and dry environment.
MAINTINANCE - DISASSEMBLY
GENERAL - ALL MODELS
Disconnect the tool from the air supply and unscrew and
remove the four (4) nuts, No. 865006; then remove the
handle assembly, reversing valve, No. 869008, gasket, and
the motor clamp seal, No. 869001, from the rear of the
motor unit.
Drive the four (4) housing bolts, No. 869066, out the front of
the motor unit. Removing the anvil housing, No. 861605, will
allow the complete impacting mechanism to slip out the
front of the motor unit. The anvil housing may need to be
rotated to clear the anvil and hammer lugs.
The impact wrench is now separated into four (4) basic
assemblies. See the following paragraphs for commplete
disassembly instructions on these assemblies
ANVIL HOUSING
For better performance, it is recommended that the anvil
housing seal, No. 867993, be replaced during each repair.
The seal may be removed by prying it out with a screwdriver.
Should the anvil housing bushing, No. 861602, need replac-
ing, the housing seal will have to be removed as outlined
above Press the housing bushing out the rear of the housing
using a bushing driver 2-3/16" in diameter.
IMPACT MECHANISM
Clamp the hammer, No 867969, horizontally in a softjawed
vise and drive the anvil* away from the hammer using a soft
hammer This will allow the anvil pin, No 867994, spring clip,
No 867964. and hammer spring No. 867984 to be removed
from the front of the cam shaft, No 867973
Remove the hammer from the vise and slip the cam shaft
and related components out of the rear of the cam, No.
867991. Remove the shock absorber, No. 867980, (slight
press fit) from the rear of the cam shaft. This will allow the
insulator, No. 869012, butt plate, No. 869011, cam roller,
No. 869278, and cam roller shaft, No867979, to be removed
from the cam shaft.
Slip the cam, No. 867991, out of the rear of the hammer,
being careful not to lose the timing pin, No. 867966.
*NOTE: On the spline drive anvils, should any of the socket
retainer parts need replacing, a 5/32" hole should be drilled
in the socket retainer plunger, No. 867950, as shown in
Figure 3. Insert a pin punch in the drilled hole and lightly tap
the punch under the socket retainer pin, No. 867951. Pry on
the punch to pop the pin out of its pocket in the plunger.
MOTOR UNIT
Set the front of the housing, No. 869744, on a cylinder (4-
112'' I.D. x 5'' long) and using a suitable driver (2-1/8" O.D.)
drive the rotor out of the rear rotor bearing, No. 867995. This
will remove the front bearing plate, No. 867985, six (6) rotor
blades, No. 867975, and rotor from the housing. Invert the
housing on the fixture and use the rotor to drive the rear
bearing plate assembly from the housing. The cylinder
Summary of Contents for W2119 series
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