Lincoln Electric PRO-CUT 55 Service Manual page 55
For use with machine code numbers 10473, 10474
Hide thumbs
Also See for PRO-CUT 55:
- Technical specifications (4 pages) ,
- Service manual (121 pages) ,
- Operator's manual (40 pages)
Table of Contents
Advertisement
F-17
PRIMARY POWER BOARD RESISTANCE TEST AND
6. If the power board does not meet the
acceptable readings outlined in Table F.2,
the board is faulty. Replace. See Power
Board
Procedure.
NOTE: Complete power board and filter
capacitor replacement is recom-
mended.
TROUBLESHOOTING & REPAIR
CAPACITOR VOLTAGE TEST (continued)
PRIMARY POWER BOARD RESISTANCE TEST POINTS
TEST POINT TERMINALS
+ Probe
201
207A
204
207A
202A
204
202A
201
205
203A
208
203A
206
208
206
205
Removal
and
Replacement
PRO-CUT 55
TABLE F.2
ANALOG METER X10 RANGE
- Probe
207A
201
207A
204
204
202A
201
202A
203A
205
203A
208
208
206
205
206
7. If the power board "passes" the resistance
test, the IGBT portion of the board is good.
However, other circuits on the power board
may be faulty. These circuits are NOT readi-
ly tested or serviceable.
8. Reconnect leads #201, #204, #205 and #208
to their appropriate terminals.
Acceptable Meter Readings
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
Greater than 1000 ohms
Less than 100 ohms
F-17
Hide quick links:
Advertisement
Chapters
Table of Contents
Troubleshooting
