Section III. REPAIR PARTS, SPECIAL TOOLS,
AND EQUIPMENT
6-5. Special Tools and Equipment
Direct and general support maintenance repair parts
are listed and illustrated in
Maintenance of the welding machine at the DS and
GS maintenance level requires no special tools or
6-7. Specially Designed Tools and Equip-
equipment.
ment
6-6. Direct Support, General Support Main-
No specially designed tools or equipment are re-
tenance
quired.
Section IV. TROUBLESHOOTING
get extremely hot when welding on ac.
This section contains information for the diagnosis
a. Before making checks or replacing items to
and correction of unsatisfactory operation or failure
remedy troubles, make a sensory inspection. Discon-
of the welding machine. Typical malfunctions which
nect main power and look for smoking, burned, or
may occur are listed in table 6-2. Each malfunction
charred wires and items. Look for broken parts or
stated is followed by a list of probable causes for
wires. Touch suspected parts except ballast resistor
each trouble. Te corrective action recommended is
for signs of overheating,
described opposite the probable cause. Refer to table
3-2 for organizational level troubleshooting.
b. Burning or overheating items frequently pro-
duce characteristic odors. Attempt to isolate by
small, the source of unusual odors coming from the
Warning: Ballast resistors (on fan
assembly)
welding machine.