Baroness LM331, Service Manual, Page: 92 / 165

Thermo-start
When the ignition key is set to the "GLOW"
position, the thermo-start lamp illuminates as
the glow plug generates heat.
Illumination time of the thermo-start lamp is
controlled by the glow lamp timer, and the
lamp is turned off after a specified amount of
time passes.
The duration of illumination indicates an
approximate period of time required for warm-
up, and has been fixed at five seconds.
Engine Oil Pressure
The lamp turns on when the ignition key is set
to the "ON" position before the engine starts.
It turns off when the engine starts and engine
oil pressure is generated properly.
It is connected to an oil pressure switch
located in the engine block (beside the oil
element) and lights up if the oil pressure
drops during operation.
1
e9jueo-004
Engine Oil Pressure_001
1 Oil pressure switch
Delay Timer
(Seat safety switch timer)
The delay timer is located under the hood and,
if the driver is away from the seat for 0.9
second or longer while driving this machine, it
turns off the signal to the power relay which
controls fuel.
If the signal from the delay timer is blocked, the
energization to the fuel solenoid stops and then
the engine stops.
1
tmdyvy-004
Delay Timer_001
1 Delay timer
LM331
Electrical system
Page 5-18
Electrical components