SECTION 55 - ELECTRICAL SYSTEM
55-105
ENGINE OIL PRESSURE SWITCH
Op. 55 414 12
REMOVAL
1. Support the boom on the boom lock pins.
2. Open the rear door and raise the top engine
shield to access the switch.
3. Remove the Y/B wire, 1, from the switch terminal.
4. Remove the switch, 2, from the engine head.
INSTALLATION
1. Install the switch.
2. Attach the Y/B wire to the switch terminal.
132
HYDROSTATIC CHARGE PRESSURE
SWITCH
Op. 55 414 28
REMOVAL
1. Support the boom on the boom lock pins.
2. Open the rear door, raise the top engine shield
and remove the right engine side shield to access
the switch.
3. Remove the Y/GY wire, 1, and B wire, 2.
4. Remove the charge pressure switch, 3, from the
return line tee.
INSTALLATION
1. Install the charge pressure switch into the tee.
2. Reinstall the Y/GY and B wires to the switch.
133