Engine Oil Pressure Switch - Kubota WSM B2050 Workshop Manual

B2050, B2350, B2650, B3150, WSM

(3) Engine Oil Pressure Switch

Connector Voltage
1. Disconnect the connector of connector 2 side.
2. Measure the voltage between terminal 15 (+) (Yellow/Blue) and
terminal 11 (−) (Black).
3. Turn the main key switch ON.
4. Measure the voltage between terminal 16 (+) (Brown) and
terminal 11 (−) (Black).
5. If the measure is not approximately battery voltage, check the
relating electric circuit.
Terminal 15 – 11
Voltage
Terminal 16 – 11
(1) Connector (Harness Side)
Engine Oil Pressure Switch Continuity
1. Measure the resistance with an ohmmeter across the switch
terminal and the chassis.
2. If 0 Ω is not indicated in the normal state, the switch is damaged.
3. If infinity is not indicated at pressure over 49 kPa (0.50 kgf/cm
7.1 psi), the switch is damaged.
In normal state
Resistance (Switch
At pressure over
terminal – Chassis)
approx. 49 kPa
(0.50 kgf/cm
(1) Engine Oil Pressure Switch
9-S34
ELECTRICAL SYSTEM
Approx. battery voltage
Approx. battery voltage
A: Connector 1
B: Connector 2
9Y1210982ELS0065US0
0 Ω
Infinity
2
, 7.1 psi)
9Y1210982ELS0066US0
KiSC issued 03, 2014 A
2
,