Glow Timer System - Mitsubishi L3E Service Manual

ELECTRICAL SYSTEM
Glow relay
Battery
Test circuit
Operation chart
Figure 154 Glow timer system
Figure 155 Glow relay
Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
Glow timer
Glow indicator
Glow relay
Glow timer
Internal wire
connection
ELECTRICAL SYSTEM

36 GLOW TIMER SYSTEM

36.1 General
The glow plugs are used to help easy start of a cold
engine by preheating the combustion chamber.
In the standard-specification engines, it is necessary to
keep the starter key at the "glow" position for 20 to 30
seconds by hand in order to heat the glow plugs.
The glow timer system eliminates the necessity of
keeping the key switch at the "glow" position and
shortens the glow plug heating time (6 seconds). This
system remarkably simplifies the glow plug operation.
36.2 Glow timer
Description
Model
Rated voltage
Working temperature
Initial performance (at
normal temperature,
normal humidity, VCC:
12V)
NOTE
*1 Using the test circuit shown, measure the time
spent until the glow relay trips to ON after the switch
S1 is closed.
36.3 Glow relay
Description
Model
Rated voltage
Continous rating
Coil resistance
Inductance
ENGLISH
GLOW TIMER SYSTEM
Specification
p/n MM431762
12V DC
20°C [68°F]
+1.4
6 sec. (*1)
-0
Specification
p/n MM43128201
12V DC
1 min
13 Ω
24 mH (at 1 kHz)
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