Craftsman 9-19905 - 1/2dr 1/4npt 500ft/lb Sq Dr Impact Wrench Owner's Manual page 9

NOTICE: If you continueto ro-
tate the Anvil, it will cam the
Hammers out of engagement.
Don't do this; merely rotate the
Anvil until it comes up solid.
3. Hold the Hammer Frame firmly
and without disturbing the ham-
mers, gently lift the Anvil while
simultaneously rotating it clock-
wise about 1/8 of a turn from
the Hammer Frame.
4. With the Anvil removed, lift out
the two Hammer Pins. The twin
hammers are now free to slide
from the Hammer Frame, Be
careful do not to drop them.
Disassembly of the Motor
NOTICE: When pulling, disas-
sembling or assemblingthe mo-
tor, we recommend replace-
ment of the Motor Gasket (7).
1. Remove the Motor Assembly
from the Housing (19) by push-
ingon Power Management Dial
(41) from the back of the
Housing. See Figure 3.
Figure 3
NOTICE; If the Motor Assem-
bly cannot be removed from the
Housing by pushing, tap the
Power Management Dial lightly
until the Motor Assembly is free.
2. Remove the Power Manage-
ment Dial from the rear of the
Cylinder (1). Remove the Power
Management Dial Seal (42) if it
needs to be replaced.
3. Remove the Front End Plate (2)
from the Cylinder by tapping the
4,
splined end of the Rotor (5) with
a plastic hammer. If the Front
End Plate does not come loose,
secure a center punchin a vise
with the point angled downward
and outward from the vise.
Then, grasp the Cylinder and
Front End Plate in one hand
and position the hole in the end
of the Rotor against the punch.
NOTICE: Be careful not to
drop the Cylinder since it can
be damaged by hitting a hard
surface.
Using the other hand, tap the
punch with a hammer while
pressing the Rotor against the
punch. After a few taps, the
Front End Plate will slide off of
the Cylinder.
NOTICE: To prevent damage
to the Cylinder, do not tap or
strike Cylinder on a hard or me-
tallic surface when removing
the Rotor Bearings (3).
To remove the Front Rotor
Bearing, hold the Front End
Plate with Front Rotor Bearing
down and tap the Front End
Plate on a flat, nonmetallic
surface such as a work bench.
This will loosen the Front Rotor
Bearing so that it will drop out of
the Front End Plate. See
Figure 4.
Front end plate
Front rotor bearing
Bench with nonmetallic surface
Figure 4
5. Remove the Rear Rotor Bear-
ing Retainer(6) from the rear of
the Rotor (5). The Rotor can
now be removed from the Cylino
der. Remove the Vanes (4) from
the Rotor if they need to be re-
placed.