Telwin DIGITAL CAR PULLER 5000 (400V) [5/104] General safety rules for

INDEX

ENGLISH

which spot welding machines are in operation.

This spot welder conforms to technical product standards for exclusive use in an

industrial environment for professional purposes. It does not assure compliance

with the basic limits relative to human exposure to electromagnetic fields in the

domestic environment.

APPLIANCES FOR RESISTANCE WELDING FOR INDUSTRIAL AND

The operator must adopt the following procedures in order to reduce exposure to

1. GENERAL SAFETY RULES FOR RESISTANCE

- Avoid spot welding with the body within the spot welding circuit. Keep both

cables on the same side of the body.

WELDING

- Connect the spot welding current return cable to the piece being spot welded,

The operator should be properly trained to use the spot-welder safely and should

as close as possible to the welding joint.

be informed of the risks connected with resistance welding procedures, of

- Do not spot weld while close to, sitting on or leaning against the spot welder

related protection measures and of emergency procedures.

- d= 3cm, f= 50cm (Fig. G)

legislation and standards.

- d= 30cm (Fig. H)

- The spot-welder should be connected only and exclusively to a power supply

- d= 20cm (Fig. I)

with the neutral conductor connected to earth.

- Make sure the power supply outlet is correctly connected to the earth

protection.

- Do not use cables with worn or damaged insulation or with loosened

connections.

compliance with electromagnetic compatibility in domestic dwellings and in

off and disconnected from the power supply.

premises directly connected to a low-voltage power supply system feeding

The same procedure should be followed when making connections to the

buildings for domestic use.

water supply or to a closed circuit cooling unit (water-cooled spot-welders)

and whenever repairs are made (extraordinary maintenance).

RESIDUAL RISKS

- RISK OF UPPER LIMBS BEING CRUSHED

hands, forearm.

substances.

The risk should be reduced by appropriate preventive measures:

- Do not weld on pressurised containers.

- The operator should either be expert or trained in resistance welding

- Remove all flammable substances from the work area (e.g. wood, paper, rags

procedures using this type of appliance.

etc.).

- There should be risk evaluation for every type of job to be done; equipment

- Make sure there is sufficient ventilation or provide means for removing

that the stroke does not exceed 6 mm.

- Do not allow more than one person to work on the same spot-welder at the

same time.

- Unauthorised persons should not be allowed in the working area.

- Do not leave the spot-welder unattended: in such a case it should be

- Always protect the eyes with suitable eye protectors.

disconnected from the power supply.

- Wear protective gloves and clothing suitable for resistance welding work.

- Noise levels: If the personal daily exposure level (LEPd) is found to be greater

- Place the spot-welder on a level horizontal surface that is able to support its

- The flowing of spot welding currents generates electromagnetic fields (EMF)

- Never lift the spot-welder unless explicitly required by the “INSTALLATION”

Electromagnetic fields can interfere with certain medical equipment (e.g. Pace-

5.1 PRELIMINARY OPERATIONS ................................................................ 7

RESISTANCE WELDING ........................................... 5

5.2 LIFTING THE SPOT-WELDER ................................................................ 7

5.3 POSITION ............................................................................................... 7

5.4 CONNECTION TO THE MAIN POWER SUPPLY ................................... 7

2. INTRODUCTION AND GENERAL DESCRIPTION .... 6

5.4.1 Warnings ........................................................................................ 7

2.1 INTRODUCTION...................................................................................... 6

5.4.2 Plug and socket.............................................................................. 7

2.2 STANDARD ACCESSORIES ................................................................... 6

3.2 OTHER TECHNICAL DATA ....................................................................... 6

4. DESCRIPTION OF THE SPOT-WELDER ................... 6

4.1 CONTROL PANEL (FIG. B1).................................................................... 7

7. MAINTENANCE.......................................................... 8

4.2 CONTROL PANEL (FIG. B2).................................................................... 7