ON/OFF SWITCH REPLACEMENT
WARNING
eyes or on the skin, injury from moving parts, or
electric shock.
Refer
to
fig
23
-
1
and
23
-
2
1. Remove the pressure control cover and screws.
2. Remove the wires attached to the switch (302) at
TPI and TP2. using a screwdriver. See page 26, Fig
26-2.
3. Use a 16 mm socket wrench to loosen and remove
the nut and rubber boot (303) from the top
of
the
pressure control box. Remove the switch guard
Fig
23-,
(304).
4. Remove the
ONlOFF switch.
5. Remove the wires attached to the switch TP4 and
TP3 using a screwdriver. See page 26, Fig
26-2.
6.
Attach the wires to
TP4
and TP3 of the new switch.
7. 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. See Fig
23-1.
303
8.
Install the switch guard (304), aligning the internal
tab with the groove in the threads.
9. Powder the inside of the rubber boot (303) with tal
-
cum, then shake excess out of boot.
10.
Install the nut and rubber boot and tighten.
11. Reconnect the wires to
TPI and TP2.
12. Reinstall the pressure control cover and screws.
Fig
23
-
2
MICROSWITCH REPLACEMENT
IWARI/*jl
Before doing this procedure, follow the Pressure
the risk of a fluid injection injury, splashing in the
Relief Procedure
Warning
on page
21
to reduce
eyes or on the skin, injury from moving parts, or
electric shock.
~ ~~ ~~~
Refer
to
fig
23-2
1.
Remove the pressure control cover and screws.
3. Use the socket wrench to remove the nuts from the
microswitch.
4. Check to see
if
the flag
(X)
has been loosened.
If
it
has, be sure the fluid pressure is
0
bar, then loosen
just the distance from the top of the flag to top inside
the
two
6
mm hex nuts behind the microswitch. Ad-
Tighten the screws and recheck the dimension.
of the pressure control box to 40.79
+/
-
0.254 mm.
5. Perform the
STALL
PRESSURE
CALIBRATION
on
page 28 before regular operation
of
the sprayer.
2. Disconnect both wires from the microswitch (306). 6. Reinstall the cover and screws.
307-670
23
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