Mitsubishi S12A2, Service Manual

Page: 11 / 354

IX
FOREWORD
Other Cautions
Do Not Tamper
If tampered, the warranty is totally void even in the
warranty period.Tampering with the engine can not
only damage the engine but also may lead to personal
injury.
Perform All Specified Pre-operation Inspec-
tions and Scheduled Inspections
Conduct the daily inspection and scheduled inspec-
tion/maintenance as described in this manual.
Failure to conduct the specified inspections may cause
various engine problems, damage to parts, and a seri-
ous accident.
Wear Proper Work Clothing and Protective
Gears
Wear a hard hat, face shield, safety shoes, dust mask,
gloves and other protective gears as needed.When
using compressed air, wear safety goggles, a hard
hat, gloves and other necessary protective gear.Works
without wearing proper protective gears may result in
serious injury.
Never Break the Seals
To ensure the proper engine operation, the fuel control
link is provided with seals that protect the fuel injection
volume and rotation speed settings against tamper-
ing.If the seal is tampered, no guarantee will be pro-
vided. If the seal is tampered, the defects shown below
can occur.
Œ
Rapid wear of moving and rotating parts
Œ
Engine troubles such as seizure and damage of
engine parts
Œ
Sudden increase of fuel and lubricating oil consump-
tion
Œ
Deterioration of engine performance due to improper
balance between fuel injection volume and governor
control, or a serious accident due to overrunning of
the engine
Inspect the Engine After Operation
After the engine operation, inspect each part of engine
once again.If any defect is found, correct immediately.
Break-in the Engine
To break-in a new engine or overhauled engine, 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 a new engine or overhauled
engine in a severe condition during the break-in period
shortens the service life of the engine.