TM-9-2350-277-34
CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
TM-9-2350-277-34 - Page 131 of 871
TM 9-2350-277-34
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS — Continued
0014 00
f.
PLASTIC MOLDING MATERIAL PARTS.
The following is a list of plastic molding material parts and their
location on the carrier:
1)
Driver’s power plant compartment access panel.
2)
Power plant rear compartment access panel.
3)
Driver’s seat upholstered backrest.
4)
All armor.
g.
MIG WELDING METHOD.
1)
MIG (Metal-Inert-Gas) welding. This process uses a DC power source, control panel, and a welding gun. The
gun feeds a consumable bare electrode at a given rate into a molten pool beneath a blanket of inert gas. When
an arc is struck, a molten pool forms at once. Move the welding gun along the joint line at a rate that shapes
the right size bead. The covering inert gas keeps air from pollutingtheweldingzone
.Nofluxisneeded
.
2)
Lead angle and cant angle. Place gun at a lead angle of 10 to 15 off vertical. Point gun in direction of weld
travel for good gas coverage, cleaning, andpreheatingof material. Place gun at a cant angle of 90 to parent
metal so filler wire and arc are directed towards apex of groove. This will give equal fusion on both sides of
material, even weld buildup, good gas coverage, and equal penetration.
0014 00-12
Change 5
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