MAINTENANCE
Page 3-6
MAX42 Service Manual
2
3
From page 3-5
From page 3-5
Measure resistance of
input rectifier bridge on
PCB3. Observe for open.
Yes
Meter indicates
an open?
Replace PCB3.
See Note on page
3-5.
Yes
No
Meter indicates
5 ohms?
No
Check connector plug
between PCB3 and T5.
No
Repair connector
plug.
Replace T5
No
T5 okay
Yes
Yes
Meter indicates
90-115 ohms?
Check resistors R1 and R2
on PCB2 ( Fig. 4-9 [13] ).
Measure resistance across
each resistor. Observe for
an indication of 5 ohms.
Recheck resistor and
relays K1 and K2 on
PCB2. Replace
resistor if faulty.
Replace PCB3 if a
relay is faulty.
Plug making
good electrical
contact?
Measure resistance across
terminals 1 and 2 of control
transformer T5 ( Fig. 4-6
[15] ) for 90-115 ohms.
Содержание MAX42
Страница 1: ...Plasma Arc Cutting System Service Manual SM116 801160 Rev 2 MAX42 ...
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