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 TUBE REDUCER TO TUBE FITTING
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TM-9-2350-238-20-2 Crane (CAB) Components Recovery Vehicle Full-Tracked: Light Armored M578 (
Next
LUBRICATION
TM
9-2350-238-20-2
Section VII.
MAINTENANCE INSTRUCTIONS
UNIT
procedures in TB SIG 222 must be
2-25.
G E N E R A L .  This
section
provides
followed.
general
repair
methods
and
cleaning
pro-
cedures. Special repair and cleaning pro-
After
locating
the
malfunction
and
repair-
10
cedures are provided, as required, in the in-
ing the component, test it for proper
dividual  maintenance  instructions.
function.
2-26.
REPAIR
METHODS.
Follow torque values given throughout
11
this manual. When no torque value is
1
Complete disassembly is not always
given,
follow
the
torque
limits
guide,
pro-
necessary to make a repair. Exercise
vided in appendix E of this manual, to
good judgement to keep disassembly and
prevent  damaging  parts.
reassembly to a minimum.
2-27.
CLEANING.
2
Repair or replace unserviceable parts and
hardware.  Always  replace  packings,
Wire brush metal parts to remove rust
1
gaskets,  and  seals  with  new  parts.
and corrosion.
3
Remove burrs with a stone or file. Re-
move burrs on closely fitted mating sur-
faces by lapping the surfaces with lap-
ping grinding compound (item 13, appx
Dry cleaning solvent (SD2) is toxic
C).
and  flammable.  Wear  protective
goggles and gloves and use only
4
Remove
corrosion
or
rust
with
crocus
in  well-ventilated  area.
cloth (item 6, appx C) or emery cloth
(item 7, appx C). Use the method that
2
Clean metal parts with dry cleaning sol-
will  not  damage  the  surface  being
vent (SD2) (item 10, appx C). Metal or
cleaned. Crocus cloth (item 6, appx C)
fiber brushes may be used to apply
should be used to remove corrosion and
cleaning solvent and to remove softened
rust  from  polished  surfaces.  Make  sure
or  dissolved  material.  Hand  scraping  with
that critical dimensions are not altered
metal scrapers may be used to remove
when using crocus cloth.
soft
coatings
or
deposits.
5
Repair  damaged
threads
with
a
thread
Soak oily or greasy metal parts in a tank
3
chaser or die.
containing  dry  cleaning  solvent  (SD2)
(item 10, appx C). The time parts must
6
When welding is authorized, procedures
be in solvent varies with the type and
in TM 9-237 must be followed. Welds
amount of material to be removed.
must  be  inspected  for  cracks.
Do not use solvent to clean electrical in-
4
7
Bearings should be inspected and main-
sulation,  wires,  cables,  or  wiring
tained  following  procedures  in  TM  9-214.
harnesses.  Clean  these  parts  by  wiping
with a damp cloth. Use a mild soap solu-
8
Clean electrical ground contacts with
tion if necessary. Dry immediately with
crocus cloth (item 6, appx C) or emery
clean  dry  cloths.  Clean  contact  points
cloth (item 7, appx C). Make sure ground
with flint abrasive paper (item 1, appx C )
connections are tight.
and  dust  thoroughly  after  cleaning.
9
Repair
chafed,
broken,
or
damaged
elec-
trical  wiring  with  insulation  tape  (item
20, appx C). When soldering is required,

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