High Pressure Sensor / Switch: Service and Repair

Fig 25 High Pressure Cut-off Switch -- Typical:

HIGH PRESSURE CUT-OFF SWITCH

Removal
1. Disconnect and isolate the battery negative cable.
2. Unplug the wire harness connector from the switch.
3. Unscrew the switch from the discharge line fitting.

Installation
1. Install and tighten the switch.
2. Unplug the wire harness connector into the switch.
3. Connect the battery negative cable.

Fig 35 Low Pressure Cycling Clutch Switch Removal/Installation:

LOW PRESSURE CYCLING CLUTCH SWITCH
1. Disconnect and isolate the battery negative cable.
2. Unplug the wire harness connector from the low pressure cycling clutch switch on the top of the accumulator.
3. Unscrew the low pressure cycling clutch switch from the fitting on the top of the accumulator.
4. Reverse the removal procedures to install. The switch should be hand-tightened onto the accumulator fitting.