Mitsubishi Heavy Industries L2, Service Manual

Page: 140 / 156

139 / 155 Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
KEY-OFF STOP SYSTEM
ENGLISH
ELECTRICAL SYSTEM
35.3.2 Solenoid installation procedure
1. Temporarily fit the solenoid 1 and nut 2 to the
crankcase. (Coat the effective thread of solenoid
with THREE-BOND 1212 or 1211.)
2. Turn in the solenoid so that clearance “C”
becomes zero at the injection pump rack position
zero (stop position).
3. Turn back the solenoid 30
°
to 40
°
(the clearance
between the rack and shaft will be 0.15 to 0.20 mm
[0.0059 to 0.0079 in.]) and tighten the locknut.
4. Start the engine. Confirm that the engine is
stopped without fail when the solenoid shaft is fully
pushed.
5. Install the rubber cap with the arrow mark pointing
up (water drain hole faces down).
35.3.3 Cares after engine assembly
1. Make the “Key-OFF stop” system wiring properly,
according to the foregoing wiring diagrams. (Refer
to GENERAL.)
2. Start the engine and confirm that the solenoid
comes into action to stop the engine when the key
switch is placed in the OFF position.
3. Confirm that the engine comes to stop when the oil
pressure switch terminal is short-circuited to the
switch body.
35.4 Fuel cutoff solenoid (ETR type)
35.4.1 Specification
Figure 151 Solenoid installation
(A): Keep them abosolutely free
from sealant.
(B): Avoid intrusion of detergent
through those gaps.
(B)
(A)
1
Rubber cap
2
P
(C)
Water
drain hole
Rack
View P
0.15 to 0.2 mm
[0.0059 to
0.0079 in.]
CAUTION
Be careful not to allow detergent intrude into the
solenoid terminal and solenoid interior (cords and
shaft).
NOTE
It will take about 10 seconds to restart an engine
which was shut down by the key shutoff device.
Figure 152 Fuel cutoff solenoid (ETR type)
13.5±0.5 mm
[0.5315±0.0197 in.]
Description Specification
Type ETR type (Energize To Run)
Rated voltage 12V DC
Rated temperature 20°C [68°F]
Coil resistance, pull 0.25
Ω
±10%
Coil resistance, hold 13.5
Ω
±10%