Graco ULTRA 1000 Instructions-Parts List Manual page 23

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POWER SUPPLY CORD REPLACEMENT
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
ing parts, or electric shock. Unplug the sprayerl
1. Remove the pressure control cover and screws.
2. Disconnect the power supply cord lead from the
ON/OFF switch
( 3 0 3 1 ,
the white wire going to the
bridge ~308). and the green wire to the grounding
screw (343) and lockwasher (327). See Fig 15.
3. Loosen the strain relief bushing (328). Remove the
power supply cord (311).
4. install the new cord in
the
revem order of
disassembly.
5. Reinstall the cover and screws.
328
311
A p
Fig 16
ONlOFF SWITCH REPLACEMENT
WARNING
Relief Procedure Warning on page 13 to reduce
the risk of a fluid injection injury, injury from mov-
1. Remove the pressure control cover and screws.
2. Use a needle nose pliers to disconnect the upper
terminal wire from the microswitch (302) for ease in
removing the ON/OFF switch (303). Refer to Fig
15.
3. Use the pliers to disconnect the two black wires
from the ONIOFF switch
(3031.
Refer to Fig 15.
4. Use
a 5/8"
socket wrench to loosen and remove
the nut and rubber boot
(304)
from
the
top
of
the
pressure control box. Remove the switch guard
(305). See Fig 16.
5. Remove the ON/OFF switch.
6. Install the new switch so the internal tab of the anti-
rotation ring (W) engages with the vertical groove
in the threads.of the switch, and the external tab
trol box. See Fig 16.
engages with the blind hole (D) of the pressure con-
7. Install the switch guard (3051, aligning the internal
tab with the groove in the threads. See Fig 16.
8. Install the nut and rubber boot (304) and tighten.
See Fig 16.
9. Reconnect the wires to the ON/OFF switch
1303)
and reconnect the wire to the microswitch (302).
Refer to Fig 15.
10. Reinstall the pressure control cover and screws.
CONTROL BOX
Fig 16
3Q7-706
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