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Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004
TIPS ON DISASSEMBLY AND
REASSEMBLY
ENGLISH
GENERAL INSTRUCTIONS
GENERAL INSTRUCTIONS
5 TIPS ON DISASSEMBLY
AND REASSEMBLY
This service manual covers recommended procedures
to be followed when servicing diesel engines. It also
contains information on special tools required and
basic safety precautions.
It is the responsibility of service personnel to be familiar
with these requirements, precautions and potential
hazards and to discuss these points with their foreman
or supervisor.
Study this manual carefully and observe the following
general precautions to prevent serious personal injury
and to avoid damage to the engine, equipment and
parts.
5.1 Disassembly
1. Use the correct tools and instruments. Serious
injury or damage to the engine can result from
using the wrong tools and instruments.
2. Use an overhaul stand or a work bench if
necessary. Also, use assembly bins to keep the
engine parts in order of removal.
3. Lay down the disassembled or cleaned parts in the
order in which they were removed. This will save
you time at reassembly.
4. Pay attention to the marks on assemblies,
components and parts for positions or directions.
Put on your own marks, if necessary, to aid
reassembly.
5. Carefully check each part for faults during removal
or cleaning. Signs of abnormal wear will tell if parts
or assemblies are functioning improperly.
6. When lifting or carrying heavy parts, get someone
to help you if the part is too awkward for one
person to handle. Use jacks and chain blocks
when necessary.
5.2 Reassembly
1. Wash all parts, except for oil seals, O-rings, rubber
seals, etc., in cleaning solvent and dry them with
compressed air.
2. Always use tools that are in good condition and be
sure you understand how to use them before
performing any service work.
3. Use only good quality lubricating oils and greases.
Be sure to apply a coat of oil, grease or sealant to
parts as specified.
4. Use a torque wrench to tighten parts when
specified tightening torques are required.
5. Replace all gaskets and packing.
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