Other Cautions; Never Modify Engine; Observe Safety Rules At Work Site; Work Clothing And Protective Gear - Mitsubishi S6B Operation & Maintenance Manual

Other cautions

Never modify engine

Unauthorized modification of the engine will void the
manufacturer's warranty.
Modification of the engine may not only cause engine
damage but also produce personal injuries.
If there is a need to modify the engine, contact your
Mitsubishi dealer.
Observe safety rules at work
site
Observe the safety rules established at your work-
place when operating and maintaining the engine.
Do not operate the engine if you are feeling ill, inform
your supervisor of your condition.
Operation of the engine with reduced awareness may
cause improper operation that could result in acci-
dents.
When working in a team for two or more people, use
specified hand signals to communicate among work-
ers.
Work clothing and protective
gear
Wear a hardhat, face shield, safety shoes, dust mask,
gloves and other protective gear as needed. When
handling compressed air, wear safety goggles, a hard-
hat, gloves and other necessary protective gear.
Works without wearing proper protective gear could
result in serious injuries.

Never break seals

To ensure proper engine operation, the fuel control
links are sealed to prevent accidental change of the
injection volume and rotation speed settings. Operat-
ing the engine without these seals in place can cause
problems described below, and also invalidates the
warranty.
Rapid wear of sliding and rotating parts
Engine damage such as seizing of engine parts
Considerably increased consumption of fuel and lu-
bricating oil
Degradation of engine performance due to improper
balance between fuel injection volume and governor
operation or overrunning of the engine which could
result in a serious accident
Chapter 1 BASIC SAFETY PRECAUTIONS
Perform all specified pre-opera-
tion inspections and periodic
inspections
Conduct the pre-operation inspections and periodic
inspections as described in this manual.
Failure to conduct the specified inspections may
cause various engine problems, damage to parts, and
serious accidents.

Break-in the engine

To break in new engines or overhauled engines, oper-
ate the engine at a speed lower than the rated speed
in a light load condition during the first 50 hours of
operation.
Operating new engines or overhauled engines in a
severe condition during the break-in period shortens
the service life of the engine.

Warm up the engine before use

After starting the engine, run the engine at low idling
speeds for 5 to 10 minutes for warming-up. Start the
work after this operation is completed. Warm-up oper-
ation circulates the lubricant through the engine.
Therefore, individual engine parts are well lubricated
before they are subjected to heavy loads.
Warm-up operation circulates lubricants in the engine
and contributes to a longer service life and economi-
cal operation.
Do not conduct warm-up operation for prolonged
period of time. Prolonged warm-up operation causes
carbon build-up in the cylinders that leads to incom-
plete combustion.
Never operate the engine in an
overloaded condition
If the engine shows an overloaded condition such as
black exhaust smoke, reduce the load immediately to
operate the engine at an appropriate output and load.
Overloading causes not only high fuel consumption
but also excessive carbon deposits inside the engine.
Carbon deposits cause various problems and will
shorten the service life of the engine.
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