TM
5-3431-200-15
Table I. Time Standards-Continued
Table I. Time Standards-Continued
Hours
Remove and replace
Remove and Replace
Hours
4406.6
SWITCHING, TIMING AND
4406.3
CONTROL PANELS, HOUSINGS,
SPEED CONTROL
CUBICLES
Switches --------------------
0.3
4.0
Control
assembly
-------------
Contactor ___________________
0.3
Relay ______________________
0.5
4406.4
CONNECTING DEVICES
Capacitor ___________________
0.4
Receptacle __________________
0.3
4406.7
RESISTORS
0.5
Cable assembly --------------
Rheostat --------------------
0.5
Resistors --------------------
0.3
Hose assembly _______________
0.2
4406.9
RECTIFIERS
Terminal strip
--------------
1.0
0.6
4406.5
PROTECTING DEVICES,
4406.11
ELECTRICAL
1.0
Fuse _______________________
0.1
Section III. SPECIAL TOOLS AND EQUIPMENT
are listed and illustrated in TM 5-3431-200-
75. Special Tools and Equipment
25P.
No special tools or equipment are required
by field and depot maintenance personnel for
77. Specially Designed Tools and Equipment
the maintenance of the welding set
No specially designed tools or equipment are
76. Field and Depot Maintenance
required by field and depot maintenance per-
Repair Parts
sonnel for the maintenance of the welding
set.
Field and depot maintenance repair parts
Section IV. TROUBLESHOOTING
78. General
80. Motor Fails to Run When Inching
Switch Is Pressed
This section provides information useful in
diagnosing and correcting unsatisfactory opera-
Probable cause
Possible remedy
tion or failure of the welding set or any of
Inching switch
RepIace the inching switch
defective.
its components. Each trouble symptom stated
Motor defective ---------Replace the motor
is followed by a list of probable causes of trou-
ble. The possible remedy recommended is de-
scribed opposite the probable cause.
81. Wire Will Not Feed
Probable cause
Possible remedy
79. Contractor Fails to Close When Trigger
Wire feed motor
Replace motor (par. 88).
Is Pressed
defective.
Probable cause
Possible remedy
82. Wire Peed Speed Too Slow
Trigger switch
Replace the trigger
Probable cause
Possible remedy
defective,
switch (par. 88),
Contactor coil
Replace the contactor coil
Wire feed motor
Replace motor (par. 88).
defective.
erratic.
41
