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M0140.docx | Rev 2.5 | Modified on 26/06/2019 | © Remote Control Technologies Pty Ltd
Engine Temperature Sensor
Ensuring the engine temperature sensor is installed on the engine side
of the vehicle in front of the thermostat. If the engine temperature sensor
is not installed on the engine side, the engine temperature will not be
sensed correctly. It is imperative that the switch sensing area (bulb) be
immersed in coolant. Install the switch using thread sealant.
Note
Care should be taken when selecting a mounting port to allow sufficient
depth for the bulb.
Engine Coolant Level Sensor
It is recommended that the coolant level sensor be installed in the
radiator tank (see figure below). Ensure there is sufficient clearance
within the radiator to accommodate the length of the coolant probe to be
fitted. Drill the required hole size in the tank and tap to the required
thread size as specified below. Always clean debris away and remove
any foreign objects before installing the sensor. Fit the sensor and
pressure test, this can be achieved by running the engine until normal
operating temperature has been reached.
Do not install the coolant level sensor in the coolant flow points of the
engine, i.e. hoses or piping. The application is designed to detect the
coolant level of the entire vehicle; the coolant level sensor must be fitted
in the top of the coolant tank (radiator) to enable it to get a correct
reading of the coolant level.
Figure 3 Radiator installation example
Engine Oil Pressure Switch
The engine oil pressure switch should be located in a suitable oil gallery
access port. Use the OEM oil pressure switch as a guide for location. Fit
the oil pressure switch using thread sealant, being careful not to over
tighten.
Note
T-pieces are available in most thread types to enable both the OEM and
Muirhead
®
Oil Pressure Switches to be installed into the original port.
Audible Alarm
There are three ways of mounting the audible warning alarm;
1. Through instrument panel (via a 29 mm hole)
2. Via an optional mounting bracket (part number 9655)
3. Under the instrument panel (cable tied to loom)
Part No.
1764
212 °F / 100 °C
Normally Closed
Thread: 3/8 NPT
Part No.
1766
230 °F / 110 °C
Normally Closed
Thread: 3/8 NPT
Part No.
2006
Thread: 1/8 NPT Nylon
Tapping drill: 21/64”
Probe length: 30 mm from top of
thread to tip of probe
Part No.
2887
Thread: 1/4 NPT Nylon
Tapping drill: 7/16”
Probe length: 72 mm from top of
thread to tip of probe
Note:
Brass weld collar included
Part No. 3074
8 PSI
Normally Open
Thread: 1/8 NPT
Probe position
Optimum probe level is ⅓ up
from the bottom of the top
hose hole