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I
9
POWER SUPPLY CORD REPLACEMENT
WARNING
Before doing this procedure, follow the Pressure
the risk of a fluid injection injury, splashing in
the
Relief Procedure Warning on page 25 to reduce
eyes or on the skin, injury from moving parts, or
electric shock.
Unolua
the
snraver!
1
Refer
to
Fig 27-1.
1. Remove the pressure control cover and screws.
2. Disconnect the power supply cord lead from the
ON/
OFF switch (303). the white wire ooina to the bridoe
(308), and the green wire to thegrchding screw
(343) and lockwasher (327).
3. Loosen the strain relief bushing (328). Remove the
4. Install the new cord (31
1)
in the reverse order
of
dis-
5. Reinstall the cover and screws.
power supply cord (31 1).
assembly.
ON/OFF SWITCH REPLACEMENT
WARNING
the risk of a fluid injection injury, splashing in the
Relief Procedure Warning
on
page 25 lo reduce
eyes or
on
the skin, injury from moving parts, or
Refer to F;g 27-2 except where noted.
1. Remove the pressure control cover and screws.
2. Use a needle nose pliers to disconnect the upper ter-
moving the ONlOFF switch (303). See Fig 27-1.
minal wire from the microswitch (302) for ease in re-
3.
Use pliers to disconnect the two black wires from the
ON/OFF switch (303). Refer to Fig 27-1,
4. Use a 518" socket wrench to loosen and remove the
nut and rubber boot (304)
from
the top
of
the pres-
sure control box. Re'move the switch guard (305).
5.
Remove the ONlOFF 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 en-
gages with the blind hole (D) of the pressure control
box.
7. Install the switch guard (305), aligning the internal
tab with the groove in the threads.
8. Powder the inside of the rubber boot (304) with tal-
9.
Install the nut and rubber boot and tighten.
10.
ReconnectthewirestotheON/OFFswitch(303)and
reconnect the wire to the microswitch
(302).
11. Reinstall the pressure control cover and screws
cum, then shake excess out of boot.
n
'
I
303
Flg 27-2
307-786
27
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