Engine Oil Pressure Switch - Kubota MX5100 Workshop Manual

MX5100, WSM

(14) Engine Oil Pressure Switch

Engine Oil Pressure Switch Panel Board and Wiring Harness
1. Disconnect the lead from the engine oil pressure switch after
turning the main switch OFF.
2. Turn the main switch ON and connect a jumper lead from the
lead to the chassis.
3. If the engine oil pressure indicator lamp does not light, the panel
board circuit or the wiring harness is faulty.
(1) Engine Oil Pressure Switch
Engine Oil Pressure Switch Continuity
1. Measure the resistance with an ohmmeter across the switch
terminal and the chassis.
2. If 0 ohm is not indicated in the normal state, the switch is faulty.
3. If infinity is not indicated at pressure over 4.9 kPa (0.5 kgf/cm
psi), the switch is faulty.
In normal state
Resistance
At pressure over
(Switch terminal –
approx. 4.9 kPa
Chassis)
(0.5 kgf/cm
(1) Engine Oil Pressure Switch
9-S25
ELECTRICAL SYSTEM
(a) From Oil Pressure Lamp
W10259540
0 Ω
Infinity
2
, 7 psi)
W10260840
2
, 7