Graco 231-032 A Series Instructions And Parts List page 23

POWER SUPPLY CORD REPLACEMENT
r " . ^ I N I N G l
Before doing this procedure, follow the Pressure
the risk of a fluid injection injury, injury from mov-
Relief Procedure Warning on page 13 to reduce
ina
Darts.
or electric shock. UnDlua the soreverl
1. Remove the pressure control cover and screws.
ONlOFF switch ~302). the whimwire going to the
2. Disconnect the power supply cord lead from the
bridge (308). and the green wire to the grounding
screw
(3431
and lockwasher (327). See
Fig 15.
3.
Loosen the strain relief bushing (328). Remove the
power supply cord (3111.
4. Install the new cord in the reverse order of
disassembly.
5. Reinstall the cover and screws.
Fig 15
ONlOFF SWITCH REPLACEMENT
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Before doing this procedure, follow the Pressure
the risk of a fluid injection injury, injury from mov-
Rellef Procedure Warning on page 13 to reduce
ina
MRS.
or electric shock. UnDlua the soraverl
1.
2.
3.
4.
5.
6.
7.
8.
Remove the pressure control cover and screws.
Use a
needle nose pliers to disconnect the upper
terminal wire from the microswitch (302) for ease in
removing the ONlOFF switch (303). Refer to Fig
15.
Use the pliers to disconnect the
two
black wires
from the ON/OFF switch
(3031.
Refer to Fig 15.
Use
a 5 / 8 socket wrench to loosen and remove
6 Y D '
the nut and rubber boot (304) from the top of the
pressure control box. Remove the switch guard
(305).
See Fig 16.
TO
Remove the ONlOFF switch.
rotation ring
(WI
engages with the vertical groove
Install the new.switch so the internal tab of the anti-
in the threads of the switch, and the external tab
engages with the blind hole (Dl of the pressure con-
trol box. See Fig 16.
Install the switch guard (3051, aligning the internal
tab with the groove in the threads. See Fig 16.
Install the nut and rubber boot (304) and tighten.
See Fig 16.
PRESS
CONTROL
303
Fig 16
9. Reconnect the wires to the ON/OFF switch 1 3 0 3 1
and reconnect the wire to the microswitch (302).
Refer to Fig 15.
10. Reinstall the pressure control cover and screws.
307-758 23