On/Off Switch - Graco 231–034 Instructions And Parts List

WARNING
To reduce the risk of a serious injury, follow the
Pressure Relief Procedure on page 4 whenever
you are instructed to relieve the pressure.
NOTE: Refer to Fig. 15 for this procedure.
1. Relieve the pressure.
2. Remove the pressure control cover (63).
3. Disconnect the electrical lead for the power cord
from the ON/OFF switch (303). Disconnect the
white wire going to the bridge (308). Disconnect
the green wire to the grounding screw (343).
4. Loosen the bushing (328). Remove the power cord
(311).
5. Install the new power cord (311) in the reverse
order of disassembly.
On/Off Switch Replacement
WARNING
To reduce the risk of a serious injury, follow the
Pressure Relief Procedure on page 4 whenever
you are instructed to relieve the pressure.
NOTE: Refer to Fig. 16 for this procedure.
1. Relieve the pressure.
2. Remove the cover (63). See Fig. Fig. 15.
3. Disconnect the upper terminal wire from the micro-
switch (302) and the two black wires from the ON/
OFF switch (303). See Fig. 15.
4. Using a 5/8 inch socket wrench, remove the nut
and rubber boot (304). Remove the switch guard
(305). See Fig. 16.
5. Remove the ON/OFF switch (303). See Fig. 16.
6. Install the new switch. The internal tab of the ring
(W) must engage with the vertical groove in the
threads of the switch. The external tab must
engage with the blind hole (D) of the pressure con-
trol. See Fig. 16.
Power Cord Replacement
303
306
343
327
Fig. 15
7. Install the guard (305). Align the internal tab with
the groove in the threads.
8. Sprinkle talcum powder on the inside of the boot
(304). Shake out the excess powder.
9. Install the nut and the rubber boot. Tighten the nut.
10. Reconnect all of the wires.
D
Fig. 16
308
328
311
63
304
305
W
303