Lincoln Electric 7FH Procedure to Install Drive Roll and Guide Tubes, Steel Wire Sizes Roll

Wire Feed Drive Roll and Guide Tube Kits

NOTE: The maximum sizes the Synergic 7F will feed satisfactorily are the 3/32” (2.4mm) cored and

1/16” (1 . 6mm) solid electrodes . The maximum sizes the synergic 7FH will feed satisfactorily are the .045 (1.2mm) cored and

.045” (1.2mm) solid electrodes.

The electrode sizes that can be fed with each roll and guide tube are stencilled on each part. Check the kit for proper components.

Steel Wire Sizes:		4-Roll
*	.068 - 3/32” (1.7 - 2.4mm) Cored	KP655-3/32
*	1/16” (1.6mm) Cored or Solid	KP655-1/16
	.045 - .052” (1.2 - 1.4mm) Solid	KP655-052S
	.045 - .052” (1.2 - 1.4mm) Cored	KP655-052C
	.035” (0.9-1.0mm) Cored	KP655-035C
	.035” (0.9-1.0mm) Solid	KP655-035S
	.030” (0.8mm) Solid	KP655-030S
	.023” (0.6mm) Solid	KP655-025S
Aluminum Wire Sizes:
	1/16” (1.6mm)	KP656-1/16A
		KP647-1/16A**
	3/64” (1.2mm)	KP656-3/64A
		KP647-3/64A**
	.040” (1.0mm)	KP647-040A**
	.035” (0.9mm)	KP656-035A

Drive rolls for only cored electrode sizes are stencilled with a “C” suffix to the wire sizes.

Drive rolls for only solid electrode sizes are stencilled with an “S” suffix to the wire sizes.

Drive rolls for aluminum wire sizes are stencilled with an “A” suffix to the wire sizes.

* Not for Synergic 7H model.

**For use with Binzel European guns. Installation instructions are included with these kits.

PROCEDURE TO INSTALL DRIVE ROLL AND GUIDE TUBES

WARNING

ELECTRIC SHOCK can kill.

•Do not touch electrically live parts such as output terminals or internal wiring.

•When inching with gun trigger, electrode and drive mechanism are “hot” to work and ground.

•Turn OFF welding power source before installing or changing drive roll and/or guide tubes.

•Welding power source must be connected to system ground per the National Electrical Code or any applicable local codes.

•Only qualified personnel should perform this installation.

Observe all additional Safety Guidelines detailed throughout this manual.

Standard 4-Roll Kits (KP571 and KP572)

1)Turn off welding power source.

2)Release both quick release levers by sliding the levers sideways into the open positions.

3)Remove hex screw & clamping collar from the drive shaft closest to the incoming side of the feeder.

4)Install drive roll onto keyed shaft. Double grooved drive rolls are to be installed with side stencilled for correct wire size facing out and with slotted spacer on top of roll. Two piece drive rolls use a spacer between the rolls for .068” (1.7mm) and larger wire sizes. (Do not exceed the maximum wire size rating of the wire drive.) Replace collar and tighten clamping screw.

5)Back out the set screw for the middle guide tube. Install the middle guide tube and slide it up against the drive roll. DO NOT TIGHTEN THE MIDDLE GUIDE AT THIS TIME.

6)Install the outgoing drive roll following the same procedure as steps 3 & 4.

7)Center the middle guide between the two drive rolls and tighten in place.

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