Lincoln Electric BIG RED 500 Service Manual page 130

F-54
WELDER SEPARATION PROCEDURE (continued)
FIGURE F.24 – ENGINE SIDE COVER BOLTS & LEADS 5F & 239
RIGHT SIDE
MACHINE VIEW
21. Disconnect leads 201 & 200B from the weld
rotor brushes. See Figure F.28.
22. Disconnect leads 206A & 221 from diode
bridge D4. See Wiring Diagram.
23. Disconnect lead 222 from the hot start choke.
See Wiring Diagram.
24. Using a 1/2" wrench, remove the two bolts (left
and right) securing the horizontal shelf to the
left and right vertical baffle assemblies. See
Figure F.29.
25. Using a 1/2" wrench, remove the four bolts
securing the front panel assembly to the base
assembly. See Figure F.30.
26. Using a 1/2" wrench, remove the two bolts
securing the case front to the horizontal sup-
port rails. See Figure F.30.
27. Using a 7/16" wrench, remove the nut and
washer from the center locating bolt from the
inside lower center of the case front assembly.
See Figure F.30.
TROUBLESHOOTING AND REPAIR
ENGINE SIDE PANEL
BIG RED
ENGINE SIDE PANEL
MOUNTING BOLTS
28. Using a 3/4" wrench, remove the four bolts
securing the lift frame assembly to the base
assembly. Note washer placement upon
removal. See Figure F.30.
29. Clear all leads and prepare for front end
removal from machine.
WARNING
• Lift only with equipment of
adequate lifting capacity.
• Be sure machine is stable
when lifting.
• Do not lift this machine using
lift bail if it is equipped with a
heavy accessory such as trail-
er or gas cylinder.
FALLING • Do not lift machine if lift bail is
EQUIPMENT can damaged.
cause injury. • Do not operate machine while
suspended from lift bail.
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30. Using hoisting straps, carefully lift and remove
the front half of the welder. Separating it from
the engine stator assembly.
® 500/600
F-54
MACHINE
REAR