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Pressure Control Replacement
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 10.
1. Relieve pressure.
2. Disconnect hose at the pressure control while
holding the fitting (A) firmly. See the CAUTION,
below. Note the original location of each hose to
be sure you reassemble them correctly at the end
of this procedure. See Fig. 19.
CAUTION
Do not allow the fitting (A) to turn when removing or
connecting the hoses. Turning the fitting or elbow
can shift the calibration of the pressure control.
3. Remove the four mounting screws and washers
(302, 303, 304) from the pressure control cover
(301). See Fig. 20.
4. Carefully remove the pressure control cover (301)
so as not to stress the cables.
5. Disconnect the black and white wires of the pres-
sure control cable (314) from the pressure control
cover.
6. Disconnect the potentiometer cable assembly
(310) from the pressure control cover.
7. Disconnect the red power lead (B) from the
ON/OFF switch.
8. Loosen the ground terminal screw (317) and
disconnect the ground lead (C).
9. Pull off the pressure control cover.
To the pump.
To the filter.
Fig. 19
310
317
C
B
301
304
302
304
303
Fig. 20
WARNING
Do not attempt to adjust or calibrate the pressure
control. If the pressure control is faulty, replace it.
10. Reassemble in the reverse order; attach ground
wire (C), power lead (B), and the black and white
connectors. Attach the pressure control cover
(301) with the four mounting screws and washers
(302, 303, 304). Torque the mounting screws to 22
2 in-lb (2.5
0.23 N m).
A
06873
314
06872A
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