Mitsubishi Heavy Industries L2, Service Manual

Page: 139 / 156

138 / 155 Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
ENGLISH
KEY-OFF STOP SYSTEM ELECTRICAL SYSTEM
ELECTRICAL SYSTEM
35 KEY-OFF STOP
SYSTEM
35.1 General
The function of this system is to actuate the fuel cutoff
solenoid when the starter key is placed in the OFF
position. It also has the emergency engine stop
function by actuating the control timer in case of
abnormal low oil pressure or abnormal coolant
temperature.
35.2 Control timer unit
35.3 Fuel cutoff solenoid (ETS type)
35.3.1 Specification
Figure 149 Timer unit
BLK
YEL
BLU
BLU
GRN
RED/WHT
RED
Description Specification
Input voltage 9V to 15V DC
Load
Solenoid
(Coil resistance 1.7
Ω
or
more)
Table 53 Control timer unit
No. Cord Color Connect with
1
Blue Solenoid
2
Blue Solenoid
3
Red Battery (Key switch “B”)
4
Green Key switch “ON”
5
Red/White Starter (Key switch “ST”)
6
Yellow Oil pressure switch
7
Black (Ground)
Table 54 Control timer unit
Figure 150 Fuel cutoff solenoid (ETS type)
Stroke
10±0.5 mm [0.3937±0.0197 in.]
Description Specification
Type ETS type (Energize To Stop)
Voltage 10V to 15V DC
Coil resistance 1.6
Ω
±10% (at 20°C [68°F])
Stroke
10±0.5 mm
[0.3937±0.0197 in.]