Shibaura SG280E, Workshop Manual

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3) Relay (38523 0300), black
(1) Layout and role of relay
When electricity flows to the seat switch timer, the
relay is triggered and the current flows.
When the keys switch is in the START position,
the relay is triggered and the current flows.
When electricity flows to the safety start switch,
the relay is triggered and the current flows to the
glow plug.
(2) Relay test
1. Connect a tester to the relay terminal to check
continuity between D and C.
There should be no continuity.
2. When a voltage of 12V is applied between A and
B, there should be continuity between D and C.
If the conditions detailed in 1. and 2. above are
not met, replace the relay.
4) Seat safety switch timer (38587 0640)
(1) Installation location and operation
The timer is installed in the location shown in the
figure on the right.
If the driver leaves the seat for 1 second or longer
will operating the mower, this timer stops the flow
of electricity to the engine stop solenoid.
(The engine stops.)
This timer is designed so that the switch will not be
too sensitive to bumpy surface conditions.
Fig.4-2-6
Fig.4-2-4
Fig.4-2-5
Fig.4-2-7