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2.
INSTALLATION
2.1
ASSEMBLY OF MIG SYSTEM
Assemble the units in order mentioned below and follow mounting and operation
instructions
which are delivered in packages.
1. Installation of power source
Read paragraph: "Installation" in operation instructions for Kemppi FastMig™ power sources
and carry out the installation according to that.
2. Mounting of KMS power sources to transport wagon
Read and follow the instructions given in the transport cart installation/assembly manual
3. Mounting the FastMig™ MSF on to the power source
Screw the fastening pivot on the power source. Lift the wire feeder on fastening pivot.
4. Connecting cables
Connect the cables in accordance with the equipment notes provided.
The polarity of the welding wire (+ or -) can be changed by replacing the MSF welding current
cable and return current cable with the Kemppi FastMig™ power source welding cable
connector.
5. Mounting of FastMig™ wire feed units to boom
NOTE!
Wire feed unit must be mounted to boom in such a way that its chassis is galvanic
separated both from swing arm and boom.
Suspension angle of wire feed unit can be changed by moving fixing point in handle.
2.2
ACCESSORIES CORRESPONDING TO WIRE DIAMETER
Wire feed rolls are available with plain groove, knurled groove and with U groove for different
purposes.
Feed rolls with plain groove: Universal feed roll for welding of all kinds of wires.
Feed rolls with knurled groove: Special feed roll for cored wires and steel wires.
Feed rolls with U groove: Special feed roll for aluminium wires.
In delivery FastMig™ wire feed units are equipped with 1.2 mm orange feed rolls with
V-groove and with silver wire guide tubes for welding filler wires of 0.6 – 1.6 mm.
2.3
MOUNTING OF MIG WELDING GUN
In order to ensure trouble-free welding check in operation instructions of gun used by you
that wire guide tube and contact tip of gun are according to manufacturer's recommendation
suitable to be used for wire feed diameter and type in question. To tight a wire guide tube
might cause for wire feed unit a bigger stress than normally as well as disturbances in
wire feed. Screw snap connector of gun tight that there won't come any voltage losses on
connecting surface. A loose connection will heat gun and wire feed unit and feeder.
MSF wire feed units are equipped with backup functions in case of overheating of the liquid-
cooled PMT gun or overloading of the wire feed motor. The backup function is as follows (see
also the error code information, page 21):
1. The Kemppi PMT gun thermal protection goes into action. When this occurs, the unit
interrupts welding and the message 'Err 153' appears on the panel (ls) display.
2. The wire feed motor can overload - due to, e.g., gun clogging. In this event, the unit
interrupts welding and the text 'Err 162' appears on the panel display. 'Err 161' = warning.
Error codes disappear on the next start-up if the cause of the error has been eliminated (i.e.,
the gun has cooled down or the motor is no longer overloaded).
EN
9
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