Opc (Operator Presence Control) System - Kubota M5040 Workshop Manual

M5040, M6040, M7040, WSM

(3) OPC (Operator Presence Control) System

Functional Check
NOTE
• The relays described here are used same ones so that these
are interchangeable.
1. Apply battery voltage across the terminals a and c, and check for
continuity across the terminals d and e.
2. If continuity is not established across terminals d and e, replace
it.
At 0 voltage between
terminal a and c
At battery voltage between
terminal a and c
(1) Battery
Checking OPC System
WARNING
• Disconnect the implement drive universal joint from the PTO
shaft, if the implement has mounted.
1. Sit on the seat.
2. Run the engine.
3. Shift the PTO clutch control switch to "ON". Make sure the
warning buzzer does not whistle.
4. Stand up from the seat.
5. The warning buzzer whistles about one second after standing up.
It whistles for 10 seconds.
(1) Seat Switch
Checking Seat Switch
1. Disconnect the connector from the cabin wire harness.
2. Check the continuity with an ohmmeter across the switch
terminals.
3. If it does not conduct or any value is indicated when the switch is
pushed (ON seat), the switch is faulty.
4. If infinity is not indicated when the switch is released (OFF seat),
the switch is faulty.
Resistance (Across Reference
switch terminals) value
(1) Seat Switch
9-S37
ELECTRICAL SYSTEM
b d
(2) Connector (Relay)
When switch is
0 Ω
pushed (P)
When switch is
Infinity
released (R)
P : Pushed
R : Released
KiSC issued 06, 2008 A
e
W1037072
W1097537
W1097695