TM 5-3431-200-15
CHAPTER 6
FIELD AND DEPOT MAINTENANCE INSTRUCTIONS
Section I. GENERAL
pair Parts and Special Tool Lists are listed in
71. Scope
TM 5-3431-200-25P.
a. The following instructions are for field
and depot maintenance personnel. The contain
information on equipment maintenance that is
72. Record and Report Forms
beyond the scope of the tools, equipment, per-
For record and report forms applicable to
sonnel, and supplies normally available to
field and depot maintenance, refer to TM 5-
organizational maintenance.
505.
plicable to field and depot maintenance. Ap-
Note. Applicable forms, excluding Standard Form 46
which is carried by the operator, shall be kept in a
Chart. The Field and Depot Maintenance Re-
canvas bag mounted on the welding set.
Section II. DESCRIPTION AND DATA
73. Description
wiring diagram of the welding set.
For a complete description of the welding
set, Westinghouse Model SA-135, see para-
of man-hours required under normal conditions
graph 3.
to perform the indicated maintenance and repair
of the welding set. Components are listed un-
74. Tabulated Data
der the appropriate functional index. The
times listed are not intended to be rigid stand-
a. Contactor.
ards. Under adverse conditions, the operations
Manufacturer--------------------Westinghouse
Electric
Corp.
will take longer; but under ideal conditions,
Type-------------------------------- MM410
with highly skilled mechanics, most of the op-
Style -------------------------------552D 181 G02
erations can be accomplished in considerably
Resistance, ohms:
leas time.
High-----------------------------252
Low------------------------------------266
Average-------------------------240
Table I. Time Stadards
b. Welding Gun Motor.
Manufacturer---------------------Globe Industries
Hours
Remove and replace
Model--------------------------------29A571
Volts-------------------------------24dc
44
WELDING, METALIZING,
Armature resistance
12 ohms (minimum)
METAL HEATING AND
including brushes.
PLATING EQUIPMENT
Full load torque------------------12 ounce inches (minimum)
GAS WELDING, FLAME
4403
(continuous)
CUTTING
No load speed----------------------9.800 rpm maximum)
Regulator, gas _______________ 0.2
Gear
ratio------------------------18.78:1
39
