MAINTENANCE
Page 3-16
MAX42 Service Manual
SEQUENCE OF OPERATION
After repairing or replacing faulty components, refer to the following sequence of
operation procedure to test the power unit and torch assembly for normal operation.
Prior to starting the procedure, ensure that the required eye and body protection is
worn.
ACTION
• Connect gas supply to filter/regulator on power
unit.
• Close external disconnect switch.
• Set switch S1 to ON (1).
RESULT
• Fan M1 operates and POWER LED (LT2)
lights.
• TEMP/PRESSURE LED (LT1) lights when
pressure switch (PS1) and temperature switch
(TS1) close indicating the temperature and air
pressure are within the range of operation.
ACTION
• Push and hold TEST switch (S2) to check air
pressure.
- Release TEST switch.
RESULT
• Air solenoid valve V1 opens to purge system
and to allow setting of pressure.
- Gas flow stops.
ACTION
• Connect work cable to workpiece and position torch on
workpiece.
• Depress plasma start switch on torch (or remote start switch for
machine torches).
RESULT
• Gas flows, pilot arc starts, and cutting arc transfers immediately
to workpiece.
SYSTEM OFF
SYSTEM
READY
ACTION
• Select cutting current with AMPS knob.
RESULT
• Power circuits ready.
ACTION
• Torch moved away from workpiece or workpiece falls away after
cut.
RESULT
• Pilot arc stops after two to three second delay.
• Gas flow stops.
• Power circuits ready.
CUTTING ARC
TRANSFER
SYSTEM
READY
Содержание MAX42
Страница 1: ...Plasma Arc Cutting System Service Manual SM116 801160 Rev 2 MAX42 ...
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