Onan MEP-003A - Section II. INSPECTION

TM
5-6115-585-34
NAVFAC P - 8-623-34
TO - 35C2-3-455-2
TM - 05684C / 05685B - 34
Section III . GENERAL MAINTENANCE
2-6
.
GENERAL
MAINTENANCE ,
should
make
sure
it
is
free
of
dirt
and
other
con
taminants
.
This section contains general maintenance instruc
tions which are the
responsibility
of
direct support
and general support maintenance personnel . You will
find that these
instructions
apply to
several assem
blies or components . They would otherwise have to
be repeated throughout the chapter .
( 5 )
Protect
disassembled
parts
from
dust
,
blowing
sand
,
and
moisture
which
can
cause
rapid
wear
and
deterioration
of
bearings
,
gears
,
and
other
machine
parts
.
2-7 . GENERAL MAINTENANCE PROCEDURES .
b
.
Seals
and
Gaskets
.
Replace
seals
and
gaskets
of
all
components
disassembled
.
This
will
greatly
reduce
the
possibility
of
leaking
and
will
help
prevent
the
entry
of
dust
and
dirt
after
reassembly
.
a . Work Guidelines .
c
.
Care
of
Bearings
.
( 1 ) Make sure the work area is clean before you
disassemble
the pump or
engine
.
(
2
)
Make
sure
that
materials
needed
for
the
maintenance
task
are
at
hand
.
These
may
include
cleaning
solvents
,
lubricants
,
buckets
,
or
other
con
tainers
for
cleaning
or
keeping
components
separated
,
clean
wiping
cloths
,
and
,
of
utmost
importance
,
the
(
1
)
Clean
ball
and
roller
bearings
by
placing
them
in
a
wire
basket
and
immersing
in
a
container
of
fresh
cleaning
solvent
.
Agitate
the
bearings
in
the
solvent
to
remove
all
traces
of
old
lubricant
.
proper
tools
.
( 2 ) After
cleaning
the
bearings
, dry
them
with
clean
compressed air .
Take
care
to
prevent
spinning
the
bearings
when
using
a
compressed
air
jet .
WARNING
( 3 ) Dip
the
cleaned
bearings
in clean
engine
oil
and
immediately
wrap
them
in
lint
- free
paper
to
protect
them
from
dust
and
other
foreign
matter
.
d . Replacing Electronic Components .
(
1
)
Tag
wires
before
removal
to
facilitate
proper
reconnection
.
DRY CLEANING SOLVENT , P - D - 680 or P - S
861 , used to clean parts is potentially danger
ous to personnel and property . Avoid repeated
and prolonged skin contact , DO NOT use near
open flame or excessive heat . Flash point of
solvent is 100 ° to 138 ° F ( 38 ° to 60 ° C ) .
(
3
)
Clean
the
exterior
of
the
engine
and
pump
before
disassembly
to
keep
foreign
matter
from
bearings
,
gears
,
and
other
machine
-
surfaced
parts
which
are
subject
to
scoring
and
other
such
damage
.
Use
a
cloth
dampened
with
cleaning
solvent
(
fed
.
spec
.
P
-
D
-
680
)
.
( 2 ) When soldering use heat sink between solder
ing pencil and electronic component to prevent damage
to
the
component
.
(
3 )
Do
not
use
excessive
heat
when
soldering
on
printed
circuit
boards
to
prevent
damage
to
board
.
WARNING
Compressed air used for cleaning and drying
purposes can create airborne particles that
may enter the eyes . Pressure shall not exceed
30 psig and use only with adequate chip
guards
and
goggles
.
e . Fuel System Maintenance . The fuel injectors and
fuel pump are manufactured to extremely tight toler
ances . Even small amounts of dust or water in the
fuel system can damage these components . Conse
quently it is of great importance that dirt be kept out
of the fuel lines and
fittings during disassembly
and
assembly
. All
openings
should be taped ,
plugged
, or
capped immediately after disassembly . If dirt does
accidentally enter a component , it should be washed
in
clean fuel
oil
before
reassembly
.
( 4 ) If compressed air is used to clean parts , you
Section IV . REMOVAL AND INSTALLATION OF MAJOR COMPONENTS
2-8
.
CONTROL
CUBICLE
.
2-9 . ENGINE ASSEMBLY .
to
a . Removal . Refer to Operator and Organizational
Maintenance Manual .
a
.
Remove
.
Refer
the
Operator
and
Organizational
Maintenance
Manual
and
perform
the
following
steps
.
b . Installation . Refer to Operator and
Organizational Maintenance Manual .
(
1
)
Disconnect
and
remove
batteries
.
2-12
Change
3