3. 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 withthese 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.
3.1 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
work
bench
if
necessary. Also, use assembly bins to keep the
engine parts in order of removal.
(3) Lay down disassembied or c1eanedparts 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.
GENERAL
3.2 Reassembly
(1)
Wash all engineparts, exceptoil seals, O-rings,
rubber seals, etc. in c1eaning solvent and dry
them with compressed air.
(2) Use only the correct tools and instruments.
(3) Use only
good
quality lubricating oils and
greases. Be sure to apply a coat of oil, grease,
or sealant to parts as specified. (Refer to section
3, of Group 2, "Maintenance Standards".)
(4) Use a torque wrench to tighten parts when
specified tightening torques arerequired.(Refer
to
section
2,
of
Group
2,
"Maintenance
Standards".)
(5)
Replace
all
gaskets
and
packing.
Apply
appropriate amount of adhesiveor liquid gasket
when required.
1-13
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