Lincoln Electric IM526-B LN-9 GMA Connection Instructions, Output Cables, Quick Disconnect Plugs

LN-9 GMA Connection Instructions

1.Turn the Invertec power switch “off”.

2.Connect the K596 control cable assembly from the LN-9 GMA to the Invertec control cable connector. The control cable connector is located at the rear of the Invertec.

3.Connect the electrode cable to the output terminal of polarity required by electrode. Connect the work lead to the other terminal.

4.Place the local-remote switch in the “remote” posi- tion to allow output control at the LN-9 GMA.

5.Set the meter polarity switch on the rear of the Invertec to coincide with wire feeder polarity used. The wire feeder will now display the welding volt- age.

6.K608-1 adapter is required in LN-9 GMA for LN-9 type control. K608-1 is installed in line with P10 connection at the LN-9 GMA voltage board. See diagram S20607 at the back of this manual.

7.K442-1 Pulse Power Filter Board is also required for GMAW, but should be disconnected for FCAW.

8.If K596 is not available, see connection diagram S20608 at the back of this manual for modification of K196 LN-9 GMA input cable with K867 universal adapter plug.

Output Cables

Select the output cable size based upon the following chart.

Cable sizes for Combined Length of Electrode and Work Cable (Copper) 75° rated:

Duty		Length Up	61-76m
Cycle	Current	61m (200 ft.)	(200-250 ft.)
100%	250	1/0	1/0
60%	300	1/0	2/0

Quick Disconnect Plugs

A quick disconnect system is used for the welding cable connections. The welding plug included with the machine is designed to accept a welding cable size of 1/0 to 2/0.

1. Remote 25mm (1 in.) of welding cable insulation.

2.Slide rubber boot onto cable end. The boot end may be trimmed to match the cable diameter. Soap or other lubricant will help to slide the boot over the cable.

BOOT

WELDING CABLE

25 mm

TRIM

1 in.

3.Slide the copper tube into the brass plug.

4.Insert cable into copper tube.

SET SCREW

BRASS PLUG

COPPER TUBE

5.Tighten set screw to collapse copper tube. Screw must apply pressure against welding cable. The top of the set screw will be well below the surface of the brass plug after tightening.

6.Slide rubber boot over brass plug. The rubber boot must be positioned to completely cover all electrical surfaces after the plug is locked into the receptacle.

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