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MAINTENANCE
MAX42 Service Manual
Page 3-13
From page 3-12
Meter
indicates
torch start
switch
closed?
Yes
No
Meter
indicates 0
ohms?
Yes
No
Check that P104/J04 at PCB14
( Fig. 4-3 [6] ). are making contact,
especially that pins 3 and 4 are
seated, or cables W116 and W117
are making good contact with TB2.
Yes
No
Replace control PC
BD Assy PCB14.
7
Set power switch to OFF (0) and
unplug power cord. Measure
resistance at TB2-11 and 13 ( Fig. 4-
6 [7] ) while depressing torch start
switch. Observe for a switch closed
indication.
Disconnect torch lead. Measure
resistance between TB2-11 and
connector torch lead receptacle J1
pin 7 and TB2-13 and J1 pin 6 for 0
ohms.
Replace torch start
switch ( Fig 4-12 )
or torch lead.
Tighten or repair all
connections as required or
replace connectors and
cables as required.
Check and repair solder
joints at J1 or wire crimps at
TB2.
Connections
making good
contact?
Содержание MAX42
Страница 1: ...Plasma Arc Cutting System Service Manual SM116 801160 Rev 2 MAX42 ...
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