Habasit PQ-18 Bedienungsanleitung

Habasit AG

Postfach, CH-4153 Reinach-Basel

Phone ++41 61 715 15 15

Fax ++41 61 715 15 55

Operating Instructions

36009

Author: Nyk/Ni/AA Page 1 of 14

Edition: 03/0404 Subject to alterations

Replaces: Edition 02/9912

Welding Device PQ-18

The PQ-18 is a simple and cost effective tool for welding of Polycord round

belts. The joining operation is by blunt welding: Ends of the belt are melted by

pressing them against the surface of a precisely regulated hot welding plate.

After sufficient heating belt ends are pressed against each other with a

defined pressure and left to cool in a defined position. After removing the

resulting bead with a knife or by grinding an optimum quality round belt is

ready for use.

The PQ-18 is well suitable for on-site installation and small to medium size

series fabrication in the workshop.

Operating instructions 36009

Welding device

PQ-18

Page 2 of 14

Edition: 03/0404 Subject to alterations

Table of contents

1. General information............................................................................................................................ 3

1.1 Application............................................................................................................................................. 3

1.2 Important safety terms .......................................................................................................................... 3

1.3 Scope of supply..................................................................................................................................... 4

1.3.1 Available accessories ........................................................................................................................... 4

1.4 Ordering of accessories/spare parts..................................................................................................... 5

1.5 Warranty................................................................................................................................................ 5

1.6 Technical advice ................................................................................................................................... 5

2. Mode of operation............................................................................................................................... 6

3. Initial start-up ...................................................................................................................................... 6

4. Welding of Polycord round belts....................................................................................................... 7

5. Service.................................................................................................................................................. 8

5.1 Maintenance.......................................................................................................................................... 8

5.2 Measuring of the plate temperature...................................................................................................... 8

5.3 Adjusting of the thermostat................................................................................................................... 9

5.4 Replacement of the power cord............................................................................................................ 9

6. Illustrations........................................................................................................................................ 10

7. Technical data................................................................................................................................... 11

8. Drawing and spare part numbers.................................................................................................... 12

9. Required accessories....................................................................................................................... 13

9.1 Cutting device S-16............................................................................................................................. 13

Appendix:

Product Liability

Operating instructions 36009

Welding device

PQ-18

Page 3 of 14

Edition: 03/0404 Subject to alterations

1. General information

1.1 Application

The welding device PQ-18 has been specifically designed for rapid and safe welding of Polycord round belts

up to a diameter of 15 mm / 0.6 in.

The PQ-18 welding device was developed solely for the purposes described in the operating instructions.

Improper use, or use for other reasons than those described in the instructions, is not permissible. Habasit

accepts no liability for the consequences of improper application.

The welding device PQ-18 is manufactured according to recognized engineering principles and state-of-the-

art technology, and complies with applicable regulations.

These operating instructions imply that all assembly, maintenance, and repair work, as well as operation of

the press, be carried out by skilled personnel or monitored by responsible specialists.

For reasons of scope, these instructions cannot cover all possible aspects of operation, maintenance, or

repair. The indications given herein refer to the use of the machines according to their designated purpose

by skilled personnel.

In case of doubt or if further detailed information is required, please consult the manufacturer (Chapter 1.4)

1.2 Important safety terms

In these operating instructions, you will find the terms WARNING, CAUTION, and INDICATION. They signal

dangers or special information to be borne in mind.

WARNING If disregarded, there is a danger of severe injury, and/or severe material damage.

CAUTION If disregarded, there is a danger of injury, and/or material damage may be caused.

INDICATION Technical information is emphasized if it is important and not readily apparent, even for

skilled personnel.

Please observe all indications for assembling, operating, and maintaining the machines, as well as all

technical data! This will prevent possible trouble and/or damage to people or materials.

Skilled personnel refer to persons authorized to perform the required work. These people have been

sufficiently trained and introduced to their field of activity so that they are able to recognize and prevent

dangers. They are aware of the pertinent provisions and safety regulations.

Operating instructions 36009

Welding device

PQ-18

Page 4 of 14

Edition: 03/0404 Subject to alterations

1.3 Scope of supply

Qty. Item Order No.

1 Welding tool 230V~, EURO 709 008

1 Welding tool 120V~, USA 709 006

1 Guiding tongs with holding device 690 240

1 Operating instruction

1.3.1 Available accessories

Also refer to chapter 9.

•Cutting device S-16 (690010)

•Temperature measuring device (N-28714 or N-28715) for checking the welding temperature

Operating instructions 36009

Welding device

PQ-18

Page 5 of 14

Edition: 03/0404 Subject to alterations

1.4 Ordering of accessories/spare parts

Spare parts and accessories can be ordered directly from the manufacturer.

Address: Habasit Italiana S.p.A.

Via A. Meucci 8, Zona Industriale

I-31029 Vittorio Veneto/TV

Tel. ++39 438 91 13

Fax ++39 438 91 2374

Please accurately describe the parts required.

State the numbers according to Section 8. Drawing and spare part numbers and, if applicable, the required

electric voltage for connection to the mains.

WARNING The use of parts by other manufacturers not meeting Habasit specifications is not

admissible.

Habasit declines all responsibility for the consequences if non-Habasit parts are

used.

1.5 Warranty

All tools undergo a strict final inspection. On the assumption of correct handling, they are warranted against

material and manufacturing defects for 1 year.

1.6 Technical advice

Our specialists will be pleased to advise you. For technical questions concerning function and condition of

the welding device, please contact the manufacturer (see Chapter 1.4 for the address).

Operating instructions 36009

Welding device

PQ-18

Page 6 of 14

Edition: 03/0404 Subject to alterations

2. Mode of operation

The heating power and the output control of the welding tool (2) in combination with the welding plate (1) are

optimally adapted to the energy requirement for butt-end welding of Polycord round belts.

The design of the guide heads (11) on the guiding tongs (5), which is adjustable in 3 positions makes it

possible to join the ends of Polycord round belts under approximately optimum joining pressures. The label

on the guiding tongs (5) indicates the spring position for the relevant Polycord round belt diameter.

The holding device (6) facilitates handling. With a corresponding number of guiding tongs (5) and holding

devices (6), efficient production in series is possible.

3. Initial start-up

Clamp holding device (6) to work table by means of clamping screw (7)

Place guiding tongs (5) on holding device (see illustration 1)

Check parallel adjustment of welding plate to flat support area of handle of welding tool (2). When laid

down on a table, the welding plate may not touch the supporting table.

Check to make sure that the voltage indicated on the welding tool conforms to the electrical

connection voltage.

Check to make sure that the welding plate (1) is clean.

Connect welding tool (2) to mains and place it on a sufficiently flat surface. Respect preheating time of

14 min.

Check temperature of the welding plate. The temperature is preset at the factory at 270 °C / 520 °F.

If a lower temperature is required, the temperature regulator can be adjusted accordingly (see 5.2,

Measuring of the plate temperature).

WARNING Do not touch the hot zone of the welding tool!.

Keep device away from water and meltable substances.

CAUTION Do not suspend the welding tool (2) from its cable.

The heat rising from the welding plate (1) may destroy the welding tool (2)

electronic regulator. If need be (e.g. when joining a belt in a machine), bend a wire

into a support hook, from which you can hang the welding tool by the welding plate.

Operating instructions 36009

Welding device

PQ-18

Page 7 of 14

Edition: 03/0404 Subject to alterations

4. Welding of Polycord round belts

Process: Engineering manual 1260

Cut Polycord round belt to length at right angles with cutting device S-16 (-> available accessories).

For determination of belt length -> manual 1260

Lock locking spring (3) in appropriate position -> label (8).

Open guiding tongs (5) and secure them by closing the bracket (4)

Open guide heads (11) by turning the knurled nuts (12).

Introduce belt ends laterally into guide heads (11) and let ends protrude 2-4 mm / 0.08-0.16 in.,

depending on diameter (larger diameters to protrude more).

Fix belt ends by turning knurled nuts (12).

INDICATION Fix belt without twisting, i.e. according to its „inner disposition“!

Introduce welding tool (2) with heating plate (1) between guide heads (11).

Free securing bracket (4) and carefully close guiding tongs (5).

Let belt ends melt until the bead measures about 1-2 mm / 0.04-0.08 in., depending on belt diameter.

Then block the handles of the guiding tongs (5) by hand, so that the guiding tongs (5) can not close

any further. This makes the belt ends stay in contact with the welding plate but without pressure

(about 5-10 s, depending on the diameter of the belt). This permits the belt ends to melt to the core

without further enlarging the bead.

WARNING Do not inhale vapors generated during welding. Join Polycord round belts only with

good ventilation!

Slightly open the guiding tongs (5) by pressing the handles.

Pull out the welding tool (2) and place it on a flat table. At the same time, carefully close guiding

tongs (5) (joining the two melted sections).

WARNING Do not touch the hot zone of the welding tool!.

Keep device away from water and meltable substances.

Let joint cool in guiding tongs (5) for about 1-2 min.

Open guide heads (11) by loosening the knurled nuts (12) and remove joined belt.

Open guiding tongs (5) and lock securing bracket (4).

Whenever the welding tool is not in use, pull out mains plug.

Remove bead with pliers, file or grinding disk. Æsee illustrations 2 and 3

The Polycord round belt is now ready for use.

WARNING After use, disconnect the welding device from the power supply and allow it to cool

completely before storing it.

Operating instructions 36009

Welding device

PQ-18

Page 8 of 14

Edition: 03/0404 Subject to alterations

5. Service

5.1 Maintenance

Keep the welding device clean at all times. Clean the welding plate (1) regularly and remove all

material residues. Clean the welding plate (1) while heated with a cotton cloth.

WARNING Burning hazard! Fold cotton cloth in several layers to assure good insulation!

Do not touch hot surfaces!

CAUTION Never clean welding plate (1) with hard objects (such as screwdrivers, spatulas

etc.)! This will damage the Teflon coating.

Check guiding tongs (5) for smooth running. If necessary clean and very slightly oil axle pin (9) and

guide bar (10).

Periodically inspect the power supply cable and connector plug for defects (insulation damage, etc.)

and rectify or replace with the correct type where necessary.

5.2 Measuring of the plate temperature

Check the operating temperature of the welding device once a month.

The tool temperature scale could not indicate the same temperature: it depends on the presence of welding

plate. We suggest to verify periodically the temperature on the plate and, if necessary, adjust it.

Carry out this check in an interior room in a draft-free environment with an ambient temperature of

between 18 °C / 64 °F and 25 °C / 77 °F

Heat up for at least 15 minutes.

Hold sensor of temperature gauge against the welding plate (1)

The temperature gauge ought to indicate 270°C ± 10°C / 520°F ± 18°F

If this is not the case, the temperature regulator has to be adjusted. See 5.3, Adjusting of the

thermostat.

Operating instructions 36009

Welding device

PQ-18

Page 9 of 14

Edition: 03/0404 Subject to alterations

5.3 Adjusting of the thermostat

The maximum plate temperature of 270 °C / 520 °F, preset at the factory, must not be exceeded by more

than ± 10 °C / ± 18 °F from 270 °C / 520 °F. It can therefore only be adjusted with a precision temperature

measuring device (see 1.3.1, Available accessories).

WARNING All work on the welding device involving electrical parts has to be carried out by the

respective specialists only.

Observe your local laws about required training of such personnel.

If the measured temperature deviates above the maximum value of 280°C / 538°F or below 260°C / 502°F,

the heating control is to be adjusted as follows:

Move adjustment potentiometer of the heating control, using a screwdriver, turning it ever so slightly:

clockwise: temperature will rise,

counterclockwise: temperature will drop.

After 5 minutes measure plate temperature to check as described above.

Proceed carefully and adjust gradually. Observe temperature change.

5.4 Replacement of the power cord

Check power cord periodically. In case of damage replace with the same type. To make sure only skilled

staff will do this repair, special tools are required for this operation.

WARNING All work on the welding device involving electrical parts has to be carried out by the

respective specialists only.

Observe your local laws about required training of such personnel.

Operating instructions 36009

Welding device

PQ-18

Page 10 of 14

Edition: 03/0404 Subject to alterations

6. Illustrations

1 2

Illustration 1: Overall view of PQ-18

Welding plate

Welding tool

Locking spring

Securing bracket

Guiding tongs

Holding device

Clamping screw

Label

Axle pin

Guide bar

Guide head

Knurled nut

Ill. 2: Polycord joint with bead Ill. 3: Polycord joint after grinding

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