Lincoln Electric IM852 CV ADAPTER - Manual (Page 14)

A-7 INSTALLATION
CV ADAPTER
A-7
14. To check the VV output, place both CV/VV switch-
es on the CV Adapter in the “VV” position. Set the
Remote Control Switch to the “REMOTE” or
“LOCAL” position as applicable, if so equipped.
Start the engine welder and set for High Idle oper-
ation. Use a DC voltmeter to check the output
polarity. The “Electrode” output terminal that is
“Negative” must be negative and the “To Work”
output terminal that is “Positive” must be positive.
If polarity is not correct, recheck Steps 3 to 12.
Voltage should be about 40-60 volts DC when the
“Job Selector” control is set at minimum and 90-
100 volts DC when set at maximum. These volt-
ages may be higher if readings are taken when
welder is cold.
15. To check the CV output, place only the lower CV
Adapter switch in the CV position. Place the CV
Adapter Remote Control Switch in the “LOCAL”
Position. This may be done while the engine is
running as long as no welding is being done.
Check voltage between the output stud on the CV
adapter and frame ground. The voltage should be
less than 10 VDC. Voltage between the “To Work”
output terminal that is “Positive” and the CV
Adapter output terminal should be 7-12 volts DC
when the CV Adapter voltage control is at mini-
mum setting and 36-48 volts DC at maximum set-
ting.
16. If output varies greatly from that specified in Steps
15 and 16, check wiring and refer to the trou-
bleshooting section of the manual.