Mitsubishi S12A2 User Manual

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Chapter 8 FUEL SYSTEM
3.3.3 Stop solenoid (RUN OFF type) - Adjust
Stop solenoid (RUN OFF type) - Adjust
(1) Pull the stop solenoid manually to the stop solenoid ON position (engine stop.)
(2) Adjust the variable-length control link so that the distance between the follower and stop lever is 0 mm (contact).
Note: When the power of governor actuator is OFF, the fuel injection pump rack is at the no injection (engine stop) position. In
this state, the distance between the fuel injection pump case end face and the follower center is 99±0.5 mm [3.898±0.019
in.].
3.3.4 Solenoid Function - Verify
Make sure the solenoid functions of start, running and emergency stop of the engine and check the fuel injection pump rack
positions.
Note:(a) If the distance to the follower center of fuel injection pump is the standard value (with 3.5 mm [0.138 in.] play to the
rack 0) or more, the engine may not be stopped.
(b) If the distance to the follower center of fuel injection pump is the 116 mm (4.57 in.) at RUN ON and 97 mm (3.82 in.)
at RUN OFF (rack 0 contacting to the stopper), fuel injection pump rack stopper may be damaged. Ensure the correct
play of 2 to 3 mm [0.08 to 0.12 in.]
Follower
Stop solenoid
Clearance: 0 mm (contact)
Stop solenoid
ON: 99 ± 0.5 mm [2.697 ± 0.020 in.]
Engine
stop condition
Engine
running condition
ON
Adjustable length control link
RUN OFF stop system spec
Play: approx. 3 mm [0.12 in.]
Stop lever
Stop solenoid
Specification Item Engine starting Engine running Engine emergency stop
Stop solenoid
RUN ON
Plunger position (spring condition) Compressed Stretched
Activation ON OFF
Distance from the fuel injection pump
end face to follower center
- 118.5±0.5 mm [4.6653±0.019 in.]
Stop solenoid
RUN OFF
Plunger position (spring condition) Stretched Compressed
Activation OFF ON
Distance from the fuel injection pump
end face to follower center
- 99±0.5 mm [3.898±0.019 in.]

Mitsubishi S12A2 Specifications

General

Brand	Mitsubishi
Model	S12A2
Category	Engine
Language	English