TM 5-3431-207-15
CHAPTER 4
FIELD AND DEPOT MAINTENANCE INSTRUCTIONS
Section I. GENERAL
Operations authorized for all echelons
of
54. Scope
This section provides complete disassembly, repair and
responsibility and shall be strictly adhered to.
testing of the welding machine. The sections are
outlined in a logical sequence of disassembly. The
55.
Field and Depot Maintenance Record
instructions provided in the succeeding sections are
and Report Forms
beyond the scope and skill of organizational personnel.
For record and report forms applicable to field and depot
maintenance, refer to TM 38-750.
Note.
Appendix II, contains the Maintenance
Allocation Chart, listing all Maintenance and Repair
Note. Applicable forms, excluding standard Form
46 which is carried by the operator, shall be kept in .
canvas bag mounted on the equipment.
Section II. DESCRIPTION AND DATA
Turns
.....................................
1-1
56. Description
Wire
.....................................
.110 x .240
For complete description of the welding machine, see
Wedge form...................................
in. pins x 31 cut
in. off center
Span
.....................................
1-10
57.
Field and Depot Maintenance Tabulated
Groups
.....................................
37
Data
Coils
.....................................
2
Pounds
.....................................
20.38
a. Generator Classification and Rating.
(3) Type of winding ................
Shunt
Poles
.....................................
2/4
Rating
.....................................
1800 RPM (revolutions
Used with arm ...............................
37.4
per minute)
Volts
.....................................
125
Voltage
.....................................
220 to 440 volts
Amps
.....................................
300
Current
.....................................
300 amps (amperes)
Turns
.....................................
1000
Cooling
.....................................
Fan
Wire
.....................................
20 S.N.F.
Lubrication type .............................
Sealed bearings
Pounds
.....................................
5.4
Duty Classification .........................
Continuous
Degree of Enclosure.......................
Fully Enclosed
c. Exciter.
Drive
.....................................
Direct
(1) Type of wind-
b. Main Generator Rebuild Data.
ing ................................
Series
Turns
.....................................
600
Wire
.....................................
19 S.N.F.
(1) Type of winding ...............
Series
Pounds
.....................................
2.5
Size and type of wire......................
(.032 x 7/8) aluminum,
(2) Type of wind-
2.9 lbs.
ing ................................
Armature
Number of turns.............................
21
Volts
.....................................
120
Winding .....................................
15 turns 2 wide and 6
Poles
.....................................
2
turns 2 high
Slots
.....................................
24
(2) Type of wind-
No.
.....................................
155
ing ................................
Armature
Lamination.....................................
1
Number of poles ............................
4
Diameter .....................................
4
Slots per core ................................
37
Bars
.....................................
48
No.
.....................................
63 7/8 in.
Coils
.....................................
242
Lamination.....................................
5
Turns
.....................................
20-20
Diameter .....................................
9
Wire
.....................................
NO. 23 HNF
Bars
.....................................
73
Reels
.....................................
1
Coils
.....................................
372
21