Mitsubishi S12R Service Manual

1 SAFETY
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
39
Pub. No. 291Y1-40720 Revision: 5
■ Warm-up Operation
■ Operation
Stay away from rotating parts during
operation.
* Otherwise you may get caught in the rotating
parts and seriously injured.
Do not apply excessive load when the
engine is cold.
* Otherwise, it may cause a failure.
* If the engine is driven at an idle speed in the low
load range for a prolonged period of time,
unburnt fuel may accumulate in the flue and
explode.
Allowable minimum load during
continuous operation: Operate with
30% or more of the rated output.
Allowable continuous operation time
with a load factor of 30% or less of the
rated output: Limit the operation
within one hour.
Operate with a load factor of 50% or
more for 30 minutes or more after
continuous operation with 30% or less
of the rated output is conducted.
The following problems may occur
when light load operation is
conducted beyond the above
allowable range:
* Fuel and/or oil leak from the exhaust system
* Carbon build-up on the cylinder head and
exhaust pipe
* Sulfuric acid corrosion
* Dilution
* Generation of blue-white smoke (mainly during
low idle operation)
During warm-up operation, check the
connections for leak (fuel, engine oil,
coolant, and exhaust gas). If you find
any problems, stop the engine
immediately.
* Otherwise, a fire or damage to the devices may
occur.
* It may cause carbon monoxide intoxication or
environmental pollution.
Stay away from rotating parts during
operation.
* Otherwise you may get caught in the rotating
parts and seriously injured.
Do not approach the engine side
without care during operation.
* Serious injury may result due to unexpected
device operation.
Do not touch any part of the engine
(other than the manual stop lever)
during operation or immediately after
operation.
* If you touch it, you may get burned by heat.
* Before starting the inspection and maintenance
work, make sure that the engine is cooled
down.
Do not turn off the battery switch
during operation.
* Otherwise, malfunctioned instruments may
cause such problems such as damage to the
devices due to operation under low oil pressure,
forcibly stopped by solenoids, or stopping
failure.
* It may also cause degradation of the diodes and
transistors in the alternator.
Never turn the key to the "START"
position during operation.
* Otherwise, the starter may be damaged.
Do not remove the protective covers
during operation.
* If you get caught in rotating parts, you may get
seriously injured.
Do not perform the inspection and
maintenance work during operation.
* Unexpected activation of the devices may result
in serious injury or damage to the devices.
Do not clean the engine during
operation.
* Otherwise, water or cleaning solution will enter
the engine, which may cause piston scuffing
and damage to the devices.
Do not operate the engine at no load
or low load for a prolonged period of
time.
* Otherwise, it may cause deterioration in the
exhaust gas properties.

Mitsubishi S12R Specifications

General

Brand	Mitsubishi
Model	S12R
Category	Engine
Language	English