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FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.
WARNING
Always wear eye protection
when operating or perform-
ing maintenance on this
tool.
WARNING
Air powered tools can vibrate
in use. Vibration, repetitive
motions or uncomfortable po-
sitions may be harmful to your
hands and arms. Stop using
any tool if discomfort, tingling
feeling or pain occurs. Seek
medical advice before resum-
ing use.
WARNING
Keep body stance balanced
and firm. Do not overreach
when operating this tool.
TORQUE ADJUSTMENT
To adjust the torque on these Twin Blade Impulse
Wrenches, proceed as follows:
1. Remove the Adjustment Hole Plug.
2. Rotate the Drive Shaft until the Torque Adjustment
Screw is visible in the opening. There is no colored
paint in the head of the Torque Adjustment Screw.
3. Using a 2 mm hex wrench, rotate the Adjustment
Screw clockwise to increase the torque output and
counterclockwise to decrease the torque output.
Do not rotate the Oil Plug.
Make all final adjustments at the job.
4. Replace the Adjustment Hole Plug.
CHANGING THE MECHANISM FLUID
To change the Mechanism Fluid in the Impulse Mechanism,
proceed as follows:
1. Using a hex wrench, remove the three Hammer Case
Cap Screws and Lock Washers. Lift the Hammer
Case off the Motor Housing over the Drive Shaft.
Remove the Hammer Case Gasket.
2. Lift the assembled mechanism off the Rotor.
3. Using a 2.5 mm hex wrench, unscrew and remove the
Oil Plug. Remove the Oil Plug Seal and Oil Plug Seal
Support.
4. Using the 2 mm hex wrench furnished with the tool,
rotate the Adjustment Screw without paint in the
wrench hole counterclockwise until it stops.
WARNING LABEL IDENTIFICATION
Always wear hearing
protection when operating
this tool.
Do not carry the tool by
the hose.
90 psig
Operate at 90 psig (6.2 bar/
(6.2bar/620kPa)
620 kPa) Maximum air pressure.
ADJUSTMENTS
WARNING
WARNING
WARNING
5.
With the oil plug opening downward over a container,
rotate the Drive Shaft to purge the fluid from the
mechanism.
6.
Using the syringe and fluid from the Fluid
Replacement Kit (Part No. EQ106S–K400), fill the
mechanism with the fluid furnished in the Kit until the
fluid overflows the fill hole. Model 1100PS4 will
require 17 cc of fluid and Model 1900PS4, 30 cc.
(Refer to Dwg. TPD1265.)
DO NOT SUBSTITUTE ANY OTHER FLUID.
Failure to use the impulse mechanism fluid
provided could damage the tool, increase
maintenance and decrease performance. Use only
clean fluid in these tools.
7. Submerge the mechanism in a reservoir containing
mechanism fluid, and using a wrench, rotate the Drive
Shaft clockwise and counterclockwise to purge any
remaining air from the system.
2
WARNING
Always turn off the air sup-
ply and disconnect the air
supply hose before install-
ing, removing or adjusting
any accessory on this tool,
or before performing any
maintenance on this tool.
WARNING
Do not use damaged, frayed
or deteriorated air hoses
and fittings.
(Dwg. TPD1265)
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