TM-9-2350-311-34-2
CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-2 - Page 72 of 552
TM 9--2350--311--34--2
2--10
Change 3
2--8
DISASSEMBLY AND ASSEMBLY PROCEDURES — CONTINUED
CAUTION
Never scribe-mark bearing surfaces.
Mark gears on mating teeth by scribe marks, or with dye, indelible ink, or paint, to be certain of correct positioning at
assembly. Use of chalk or crayon for marking should be avoided because of lack of permanence.
During assembly, subassemblies should be assembled first, combined into major components where possible, and then
installed to form a complete component.
Records to provide repair and replacement data and statistics should be carefully prepared and maintained according to
DA PAM 750--8.
2--9
CLEANING
RefertoTM 9--247forinstructionsoncleaningandfornecessarycleaningmaterials.AlsorefertoTM 9--2350--311--10and
TM 9--2350--311--20--2 for specific areas to be cleaned.
WARNING
Breathing vapor from degreasing solutions can cause headache, dizziness, loss of muscular
control, coma, permanent brain damage, or death. Make sure area is well ventilated as a
preventive measure.
a. Cleaning of Materiel Received from Storage
Materiel received by support maintenance units from storage will be cleaned by dip-tank, vapor-degreaser,
or steam method, whichever is applicable or available. Descriptions of these methods follow. If some time is
to elapse before the start of repair operations, apply a coating of CLP (item 11, Appx B) to all finished metal
surfaces to prevent rusting.
CAUTION
Do not immerse sealed-typed ball bearings in cleaning compound (item 11.1, Appx B) or hot oil.
1
Dip-tank method. Disassemble as required. Using rubber gloves, place parts in a perforated metal basket,
submerge, and agitate in a tank containing cleaning compound (item 11.1, Appx B).
2
Vapor-degreaser method. Tanks containing a heated solution of trichlorethylene or perchloroethylene (Type
II) are used for degreasing items that are very greasy or oily and are not readily cleaned by dip-tank method.
Place parts in a perforated metal basket, and submerge just below the vapors in the tank, keeping the
basket in this position until all of the grease, oil, or dirt melts and runs off the parts. If necessary, materiel
may be washed with degreasing spray unit.
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