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Workman MDX--D
Electrical System
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Oil Pressure Switch
The engine oil pressure switch is located on the engine
near the oil filter (Fig. 28). The oil pressure switch is a
normally closed switch that opens with pressure.
The oil pressure switch should open at approximately 8
PSI (0.56 kg/cm
2
).
Switch Testing
NOTE: Refer to Kubota Workshop Manual, Diesel En-
gine, SM--E3B Series for information regarding engine
lubrication system and testing.
1. Turn the ignition switch to the ON position. The oil
pressure indicator light on the dash panel should be illu-
minated.
2. If the indicator light is not illuminated, raise and sup-
port cargo box to gain access to engine.
3. Locate oil pressure switch on engine and disconnect
the wire harness connector from the switch.
4. With the ignition switch in the ON position, ground
the disconnected wire to the engine block.
5. If the indicator light comes on, the oil pressure switch
is faulty. Replace oil pressure switch.
6. If the indicator light does not come on after step 5,
check the oil pressure indicator light and circuit wiring
(see Indicator Lights in this section).
7. After testing is completed, connect the wire harness
connector to the oil pressure switch. Lower and secure
cargo box.
1. Oil filter 2. Oil pressure switch
Figure 28
1
2