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12.0 CHANGING COMPONENTS
12.16 Pressure Gauge (Figs. 59 & 60)
1. Drain the primary circuit and undo the nut on the
pressure gauge capillary.
2. Undo the screws securing the gauge retaining
bracket.
3. Remove the bracket and gauge assembly.
Depress the barbs on the side of the gauge and
remove the retaining bracket.
4. Examine the sealing washer, replace if necessary.
5. Reassemble in reverse order.
12.17 Hall Effect Sensor (Fig. 61)
1. Ease the sensor upwards off the hydraulic inlet
manifold assembly.
2. Disconnect the electrical plug from the sensor.
3. Connect the plug to the new sensor. Carefully fit
the new sensor to the hydraulic assembly, ensuring it
is fully down.
12.18 Pressure Relief Valve (Fig. 62)
1. Drain the primary circuit.
2. Disconnect the discharge pipe from the valve.
Using a suitable hexagon key undo the grub screw
sufficiently to release the valve.
3. Note the orientation of the valve, rotate it and
withdraw it from the manifold.
4. Fit the new valve and ‘O’ ring seal and set to the
previously noted orientation. Reassemble in reverse
order.
Pressure Gauge
Pressure Gauge
Capillary
Gauge Retaining
Bracket
Fig. 59
Fig. 60
Pressure Relief Valve
Grub Screw
‘O’ ring seal
Discharge Pipe
Fig. 62
Hall Effect
Sensor
Hydraulic
Inlet
Assembly
Fig. 61
Publication No. 5116282
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