Craftsman 9-19905 - 1/2dr 1/4npt 500ft/lb Sq Dr Impact Wrench Owner's Manual page 13

4. Install the Trigger O-ring (34) on
the Trigger. Insert the Trigger
Assembly in the front of the
Housing.
5. Rotate the Reverse Valve in ei-
ther direction until an ear comes
up against the Trigger.
6. Look through the Housing from
the rear. If the tab on the Re-
verse Valve has been rotated to
the left, install the right Button
in the Housing. When one But-
ton has been installed, push the
Button in. This will rotate the'
Reverse Valve so that the other
Button can be installed. See
Figure 14.
Reverse /,<__ Rear of
valve _J housing
Tab-"'-
_ Forward
button
Figure
14
If the tab on the reverse Valve
has been rotated to the right,
install the left Button. See Fig-
ure 15.
_ Rear of
Reverse\ _usin9
valve "__-
Rever_e _ _ Tab
button
Figure 15
NOTICE: If the Forward/Re-
verse Buttons will not install
easily, move the Reverse Valve
slightly higher in the handle to
provide better alignment with
the Buttons.
7. After the Forward/Reverse But-
tons have been installed, re-
move the Trigger before pro-
ceeding with installation of the
throttle mechanism.
Assembly of Throttle Mecha-
nism
,
Using an Inlet Bushing Screen
Installation Tool, install the Inlet
Bushing Screen (23), screened
end first, in the bottom (hex
end) of the Inlet Bushing (22).
Insert the rounded end of the
tool in the cone formed by the
screen and tap the end of the
tool to secure the rim of the
screen in the Bushing. See Fig-
ure 16.
Inlet Bushing Screen
installation Tool
Figure 16
2. Install the Washer (25), Inlet
Retainer Clip (32), inlet Bushing
Seal (26), Tilt Valve Spring (32),
Tilt Valve (27) Tilt Valve Seat
(29) and Tilt Valve Seat Support
,_3o).
WARNING:
The "131t Valve Seat Retainer
(31) must be properly installed
in the groove in the Inlet Bush-
ing (22). To check for correct
installation of the Retainer, in-
sert a pin into one of the holes
in the Retainer and rotate the
Retainer. A correctly installed
Retainer will rotate freely but
with some resistance in the
groove of the Inlet Bushing. An
incorrectly installed Retainer will
pop out of the Inlet Bushing
when the Retainer is rotated,
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