Relay Layout - Kubota KX080-4 Workshop Manual

KX080-4, WSM

[3] RELAY LAYOUT

Starter
1. Power supply to terminal B
IMPORTANT
• The battery voltage always exists at terminal B of the
starter, so do not short it during inspection.
1. Connect the (+) side of the circuit tester to terminal B of the
starter and the (–) side to the body and measure the voltage.
2. If the measurement meets the factory spec, the harness
between the battery and terminal B is OK.
3. If the measurement is outside of factory specs, check the
condition of the battery cable (+) contact and that of the GND (–)
cable and the body.
Measured voltage Factory specification
2. Power supply to starter's pull-in and holding coils
1. Remove the connector from the starter's S terminal.
2. Connect the (+) of the circuit tester to the connector on the
harness side and the (–) to the body.
3. Put the machinery operation lock lever in the lock position and
measure the voltage with the key switch held in the START
position.
If the measurement meets factory specs, the circuit from the
battery to the S terminal is OK (harness, key switch, auto-release
relay).
Measured voltage Factory specification
(1) Terminal B
Relay Layout and Capacities
(1) Power relay (40A)
(2) Glow relay (40A)
(3) Horn relay (20A)
(4) Starter relay (20A)
(5) Beacon relay (20A)
(6) Worklight relay (20A)
(7) ECU (Power) relay (20 A)
(8) Blower relay (20A)
(9) Compressor relay (20A)
(10) Condenser relay (20 A)
(11) Engine ECU relay (20A)
4-S48
ELECTRICAL SYSTEM
11 to 14 V (battery voltage)
11 to 14 V (battery voltage)
(2) Terminal S
RY9212148ELS0137US0
RY9212148ELS0142US0
KiSC issued 08, 2015 A