Telwin DIGITAL CAR PULLER 5000 (400V) [8/104] Maintenance

Using the supplied extractor (POS.1, FIG. E)

Spot-welding the grommet for anchoring the earth terminal !

Locking on and pulling grommets

Fit the appropriate electrode to the studder chuck (POS.9, FIG. E) and insert the

This is carried out by fitting and locking the chuck tightly (POS.3, FIG. H) on the body

grommet (POS.13, FIG. E).

of the electrode (POS.1, FIG. H) Lock onto the grommet (POS.13, FIG. H), which was

Place the grommet in the chosen area. Place the earth terminal in contact in the

been spot-welded as described previously, and start pulling On completion turn the

of the electrode (POS.1, FIG. E) Insert the pin (POS.15-16, FIG. E), which was spot-

a) Bare the sheet as close as possible to the point where you intend to work,

welded as described previously, into the chuck (POS.1, FIG. E) keeping the end

cleaning an area corresponding to the contact surface of the earth hexagon.

pulled towards the extractor (POS.2, FIG. E) After insertion release the chuck and

b) Connect the earth terminal (threaded earth electrode and corresponding

start pulling. On completion pull the chuck towards the hammer to extract the pin.

threaded hexagon) to the eyelet terminal on the earth cable and lock it using the

nuts and washers supplied for this purpose.

Spot welding and drawing on sheets

after the set time (GREEN LED * switches off) and start drawing.

tighten up the earth hexagon manually so as to obtain a good contact with the

When finished, tilt and rotate the rod to remove the welding electrode, which can be

sheet.

used again.

Spot-welding screws, washers, studs, rivets

7. MAINTENANCE

Fit the appropriate electrode to the studder, insert the item to be welded and place it

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on the sheet at the desired point; press the button on the studder: release the button

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Fit the appropriate electrode to the studder chuck (POS.6, FIG. E) pressing on the

surface to be welded. Press the button on the studder and only release it after the

7.1 ROUTINE MAINTENANCE

preset time (LED * goes off).

ROUTINE MAINTENANCE CAN BE CARRIED OUT BY THE OPERATOR

WARNING!

- adjustment/reset of electrode tip diameter and profile;

The maximum sheet thickness that can be welded from only one side is 1+1 mm. This

- electrode alignment checks;

EXTRAORDINARY MAINTENANCE OPERATIONS SHOULD BE CARRIED OUT

2- The two parts to be spot-welded should be bared of any paint, grease or oil.

ONLY AND EXCLUSIVELY BY EXPERT OR SKILLED ELECTRICAL-MECHANICAL

3- The parts to be welded should be in contact with one another, without an

PERSONNEL.

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4- The top piece should never be thicker than 1 mm.

5-

7- When spot-welding, put the electrode on the sheet, exert slight pressure (3-4 kg).

If checks are made inside the spot-welder while it is live, this may cause serious

8- Never weld more than 30 cm from where the earth bar is fastened.

electric shock due to direct contact with live parts and/or injury due to direct

9- Connect the earth to the lower sheet.

contact with moving parts.

Inspect the inside of the spot welder periodically, and in any case as frequently as

Simultaneous spot-welding and pulling on special grommets 

required by use and the surrounding conditions. Remove the dust and metal parts that

(POS.4, FIG. E), locking it with the special screw (FIG. E) Spot-weld it in the required

very soft brush or with the appropriate solvents.

place, adjusting the studder as for spot-welding grommets and start pulling.

Take the opportunity to:

On completion, turn the extractor through 90° to detach the grommet, which can be

- Ensure that the wiring insulation is not damaged and the connections are tight and

re-welded in a new position.

- Make sure that the connecting screws of the transformer secondary (if present) are

- With the spot-welder main switch closed (pos. ” | ”) the green LED is on; if not the fault

- The yellow LED is on (thermal safeguard triggered); wait until the LED goes off before

- The parts making up the secondary circuit (arm-holder castings arms electrode