4 – MASTER MLS™ 2500, 2503, 3500, 3503, MASTERTIG MLS™ 3000, 3003, 4000, 4003 / 0606
© KEMPPI OY
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Welding power circuit
Isolate yourself by using proper protective clothing, do not wear wet clothing. Never work on a
wet surface or use damaged cables. Do not put TIG torch or welding cables on welding machine
or on other electric equipment. Do not press TIG torch switch if the torch is not directed towards
the work piece.
Welding fumes
Take care that there is sufficient ventilation during welding. Take special safety precautions when
welding metals which contain lead, cadmium, zinc, mercury or beryllium.
Lifting the equipment
Always remove gas bottle before lifting.
2. INSTALLATION
2.1. REMOVAL FROM PACKAGING
The equipment is packed in durable packages designed especially for it. However, it is necessary
to check the equipment before using it to make sure that the equipment or any part of it has not
got damaged during transportation. Also check that the delivery corresponds to your order and
that you have received all necessary instructions for installing and operating the equipment. The
packaging material is recyclable.
2.2. LOCATING THE MACHINE
Place the machine on a horizontal, stable and clean ground. Protect the machine from rain and
direct sunshine. Check that there is enough space for cooling air circulation in front of and behind
the machine.
2.3. SERIAL NUMBER
Serial number of the machine is marked on the rating plate. The serial number is the only proper
means of identifying parts for a specific product. It is important to make correct reference to the
serial number of the product when making repairs or ordering spare parts.
2.4. INSTALLATION AND MAIN PARTS
Front of machine
1. Function panel
2. Remote control connector
3. TIG torch control connector, not in MMA
version
4. Shield gas and current connector for TIG
torch, not in MMA version
5. (+) connector for electrode holder or earth
cable, in TIG welding for earth cable
6. (-) connector for earth cable or electrode
holder in MMA welding (stick welding)
Markings for (+/-) poles on the machine front are
embossed.