Operation, Warning – Lincoln Electric IM677 RED-D-ARC LN-25 User Manual

Page 14

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LN-25

B-3

B-3

WORK CLIP LEAD

IMPORTANT SAFETY NOTE: To avoid possible
electrical shock, do not touch the metal portions of
the LN-25 work lead clip if the power source output is
on. The clip will be electrically “HOT” to work if the
input electrode cable to the LN-25 is electrically “HOT”
even if the gun trigger is off and even if an internal
contactor is used. Care should be taken to only handle
the LN-25 work clip by its non-metal insulated portions
and/or the welding power source should be turned off
before handling the work clip.

The 15 ft. (4.6m) work clip lead attached to the front
panel of the LN-25 case must be connected directly
to the work using the spring clip on the end of the lead.

If not connected, the LN-25 will not operate even if a
K431-1 or K624-1 (42V) Remote Output Control option
(refer to Accessories Section) is used. However, the
electrode will still be electrically “HOT” when the clip
lead is disconnected, if K431-1 or K624-1 (42V)
Remote Output Control Option, or Internal Contactor
(K443-2), is not used.

When used with a K460-1 Pulse Power Adapter Kit,
the LN-25 does not need a clip lead.

NOTE: The clip lead also serves as a work sensing
lead for the LN-25 Voltmeter (if installed). If the clip
lead is extended by the user beyond the standard 15
ft. length, the voltmeter reading will be lower than the
actual arc volts due to the LN-25 motor control cur-
rent flowing through the resistance of the extended
lead. To minimize this voltmeter error, the following
minimum lead size is recommended for the maximum
extended lengths shown:

OPERATION

AWG

Maximum Length

#14

25 Ft(7.6m)

#12

50 Ft(15.2m)

#10

100 Ft(30.5m)

#6

200 Ft(61m)

GAS FITTING (OPTIONAL)

Provides gas output connection to the welding gun for
the GMAW process. Refer to K430-2 Gas Solenoid Kit
in the Accessories Section.

WARNING

ELECTRIC SHOCK can kill.

• Do not touch metal por-

tions of the LN-25 lead
clip when welding power
source is on.

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