Lincoln Electric IM558 Synergic 7 and 7H Water Cooled - Manual (Page 14)

A-7 INSTALLATION
SYNERGIC 7 & 7H
A-7
8) Loosen the molded hand screw on the front of the
wire drive and pull the gun connector out of the
connector block. The guide tube provided in the
gun connector is for .045" (1.2 mm) or smaller wire
sizes (marked with one ring). If larger wire sizes
are used, remove and replace the guide tube with
the larger hole guide tube (marked with four rings)
which is provided in the storage hole of appropriate
capacity wire drive faceplates (near motor). The
guide tube is secured with a set screw on the bot-
tom of the brass hex so the guide is flush with the
incoming end of the gun connector.
9) With the gun connector removed, back out the
screws for the incoming and outgoing guide tubes.
10) Install the longer guide tube in the rear hole near
the incoming drive roll. Slide the tube in until it
almost touches the roll. Tighten in place.
11) Install the remaining guide tube in the front hole.
Be certain that the proper plastic insert is used.
Fine wire chisel point tube must have largest
radius next to drive roll. Tighten in place.
12) Reinstall the gun connector into the conductor
block and tighten molded handscrew.
13) Re-latch both quick release levers.
14) To start new electrode, straighten the first 6"
(150mm) and cut off the first 1" (25 mm). Insert
free end through the incoming tube. Press gun
trigger and push wire into the drive roll.
TO SET IDLE ROLL PRESSURE, see Idle Roll
Pressure Setting.
Gun and Cable Assemblies
GMAW Guns
An expanding line of Magnum Fast-Mate™ air cooled
and water cooled gun and cable assemblies are avail-
able to allow welding with solid and cored electrodes
using the GMAW process. See the appropriate
Magnum literature for descriptions of the 200 to 400
ampere air cooled gun and cables that are available
as well as the Magnum Water Cooled 450 ampere
water cooled gun and cable. Gun cable lengths range
from 10 ft. (3.0 m) to 25 ft. (7.6 m) and feed electrode
sizes .025" (0.6 mm) to 5/64" (2.0 mm).
An expanding line of Magnum X-Tractor gun and
cable assemblies provides fume extraction capability
for welding with solid and cored electrodes using the
GMAW process. See the appropriate Magnum litera-
ture for descriptions of the 250 to 400 ampere air
cooled gun and cables that are available. Gun cable
lengths range from 10 ft. (3.0 m) to 15 ft. (4.5 m) and
feed electrode sizes .035" (0.9 mm) to 1/16" (1.6 mm).
These guns require the use of either the K173-1 or
K184# vacuum units.
# Requires S14927-8 connector hose and an S20591
hose adapter.
Gun Cable Connection: Wire Feeder to Gun
a. Check that the drive roll(s), feeder guide tubes and
gun connector guide tube are appropriate for the
electrode size being used. If necessary, change
them per Drive Roll Installation Section.
b. Connect gun to gun connector making sure all pins
and gas tube line up with appropriate holes in con-
nector. Tighten gun by turning large nut on gun
clockwise.