Leister Varimat V Manuale utente

LEISTER Varimat V

Hot Air Automatic Welding Machine

OPERATING INSTRUCTIONS ®

LEISTER Varimat V

Automatic Overlap Welding

Machine

• For overlap welding of roofing

membranes made of PVC, PE,

ECB, EPDM, CSPE, and Modified

Bitumen for areas close to

edges and uneven surfaces.

• Overlap welding of foils and

coated materials. Width of wel-

ding seam 20, 40 mm.

LEISTER Varimat V

Automatic Bitumen Welding

Machine

For overlap welding of Modified

Bitumen sheet. Width of welding

seam 80, 100 or 120 mm.

APPLICATION

LEISTER Process Technologies, Riedstrasse, CH-6060 Sarnen/Switzerland

Tel. +41 41 662 74 74 Fax +41 41 662 74 16

www.leister.com [email protected]

Please read operating instructions carefully before

use and keep for further reference.

Incorrect use of the hot air tool can present a fire and

explosion hazard especially near combustable materi-

als and explosive gases.

The tool must be operated under supervision. The heat

can ignite flammable materials which are not in view.

For personal protection, we strongly recommend the

tool be connected to an RCCB (Residual Current Circuit

Breaker) before using it on construction sites.

The voltage rating stated on the tool should correspond

to the mains voltage.

Do not touch the element housing and nozzle when hot

as they can cause burns. Allow the tool to cool down.

Do not point the hot air flow at people or animals.

Protect the tool from damp and wet.

230

400

WARNING

CAUTION

Technical Data

230, 400 230, 400 

4600, 5700 4600, 6300

50 / 60 50 / 60

20 – 620 stepless 20 – 620 stepless

0,5 – 5 stepless 0,5 – 5 stepless

ca. 190 (2 weights) ca. 220 (2 weights)

50 – 100 50 – 100

67 67

640 x 430 x 330 640 x 430 x 330

33 with 5 m cable 35 with 5 m cable

Voltage V~

Power consumption W

Frequency Hz

Temperature °C

Drive m/min.

Welding pressure N

Air flow %

Emission level LpA (dB)

Size mm

Weight kg

Mains voltage cannot be switched over

Connect tool to a receptacle with protective earth

terminal. Any interruption of the protective conductor

inside or outside the tool is dangerous!

Line/mains extension cables must always have a pro-

tective ground conductor!

Danger! Unplug the tool before opening it as live com-

ponents and connections are exposed.

APPROVAL MARKS

Protection Class Ι

DESCRIPTION OF TOOLS LEISTER Varimat V

1. Cable to mains

2. Housing

3. Main switch

4. Key board

5. Display

6. Sensor

7. Locking screw

8. Hot air blower

9. Welding nozzle

10. Tool holder

11. Locking lever

12. Pendulum action roller

13. Adjustment screw for tracking

14. Track-alignment roller

15. Guide roller

16. Adjustable transport roller

17. Transport roller

18. Guide roller

19. Shift spring for transport roller

20. Gate

21. Scale for tool adjustment

22. Additional weight

23. End weight

24. Carrying handle

25. Socket head cap screw

26. Lower guide bar

27. Upper guide bar

28. Clamping lever guide bar

heigh adujstable

29. Cable holder

30. Round belt

31. Clamping lever guide bar

32. Sensor covering

12 30

20 10

12 Pendulum action roller

1. Retaining ring

2. Tension ring

3. Rubber buffer

4. Tappet casing

5. Rubber tyre

6. Rubber buffer

7. Tension ring

8. Tightening disk

9. Cylinder screw

23456789

32 7 6

DISPLAY OPTIONS LEISTER Varimat V

Main– Level

main switch (3) on

Control– Level +

–& &

1 3 5

2 4 6

1 3 5

2 4 6

Display of:

1. Welding speed ACTUAL value

2. Welding speed SET value

3. Temperature ACTUAL value

4. Temperature SET value

5. Voltage - ACTUAL value

6. Welded length - ACTUAL value

*Heating / Drive active

Display of:

1. Welding speed ACTUAL value

2. Welding speed Power consumption in % after start

3. Temperature ACTUAL value

4. Temperature Power consumption in % after start

5. Voltage ACTUAL value

6. Welded length ACTUAL value

Display 4 Drive reason for fault Action

100 % • mains under-voltage reduction of

welding speed

• high welding speed with check welding

large sudden overload procedure/machine

Display 2 Heating reason for fault Action

100 % • mains under-voltage reduction of airflow

100 % • heating element faulty repair

SET value

not achieved

FAULT FINDING ACTIONS LEISTER Varimat V

Automatic starter reason for fault

Drive motor does not start automatically after the nozzle has been positioned

• Sensor (6) set incorrectly

Action adjust Sensor

–

Switch off main switch (3)

– Remove sensor covering (32)

–

Lower the hot air blower (8) and guide it to the left until it locks

– Locking lever (11) must click in

– Loosen locking screw for sensor (7)

– Push sensor (6) to tool holder (10)

IMPORTANT! Distance between tool holder and sensor > 0,2 – 0,5mm max.

– Tighten locking screw for sensor (7)

– Fix sensor covering (32)

–

Move the hot air blower (8) out until it locks and swivel up

– Make a functional test

If malfunction is still present, contact your Service Center.

Error 100/ 101/ 102 Measures

• Check blower (air must be flowing out of nozzle)

• If malfunction is still present, contact your Service Center

check the blower

3 8

32 7 6 11

Heating

Reset

Welded length

Cursor will blink

on the display

Welding Temperature

Set the welding temperature with the , keys. The temperature is

dependent on the material and the ambient temperature. The in-put SET value

will be shown on the display. Switch on the heating by pressing the and

keys simultaneously. Heating-up time approx. 5 mins. (SET value not achie-

ved, see airflow

Airflow

–

Drive

ON / OFF

SET value setting

–+

ON / OFF

SET value setting

–+

WELDING PARAMETERS LEISTER Varimat V

Welding speed

Depending on the film or geomembrane liner and the influence of the weather,

set the welding speed with the keys. The in-put SET value will be shown

on the display.

+–

Important note:

During the heating-up process, the airflow is adjusted automatically

to 100%. Only after reaching the SET temperature, the pre-set airflow

in %, is taken over (element protection). If the SET temperature has

not been achieved, adjust the airflow to 80% before switching on the

heating element.

–+

M&+

OPERATION Overlap 20/40 mm LEISTER Varimat V

WELDING PARAMETERS Overlap 20/40 mm LEISTER Varimat V

Operating condition

• Attach strain relief of guide bar (26/27)

• Hang the mains cable (1) into the cable holder (29).

• Adjust the guide bar (27) with the clamping lever (28) to the desired height

• .Check the basic setting of the welding nozzle (9).

(ex works illustration A and C)

• Transport setting:

– Swivel the guide roller (18) upwards

– Release the transport roller (16) by raising the guide bar (27).

– Push the transport roller (16) by applying a little pressure to the shift spring (19)

to the left until it stops (illustration B).

– Position the hot air blower (8) by pulling the locking lever (11) and swivel it up

until it locks.

• Connect the tool to the mains

The voltage rating stated on the tool should

correspond to the mains voltage.

Illustration

Illustration A

Illustration

1–2 mm

40 – 50 mm

18 16 12

222

120N 155 N 190N

Illustration H

12 23

Welding pressure

• The welding pressure is transmitted to the

pendulum action roller (12).

• As necessary, the additional weights (22) and

the end weight (23) can be put on

(see illustration H).

1–2mm

Welding procedure

• Adjust welding parameter, see page 6.

• The welding temperature must be achieved (heating up time approx. 5 min).

•Do a test run.

• Pull the locking lever (11), lower the hot air blower (8) and position it between

the overlapped sheets until it stops.

If it does not start, see sensor adjustment, page 5.

The machine can be started manually with key

• The automatic welding machine is guided along the overlap with the guide

bar (27). Do not apply pressure to the guide bar (27) this could lead to

welding faults. Keep watching the guide roller (18) position.

• After welding, pull the locking lever (11), take the hot air blower (8) out

until it stops and swivel up until it locks.

• After completion of the welding work switch off the heater by pressing keys

and on keyboard (4) simultaneously, so that the welding nozzle (8)

cools down.

• Switch off main switch (3).

USAGE Overlap 20/40 mm LEISTER Varimat V

Tool positioning

• Tip up the Automatic Welding Machine by applying pressure to the guide bar

(27) and position it ready for welding.

• Release the transport roller (16) by lifting it with the guide bar (27).

• Push the transport roller (16) to the left until it stops by applying light pressure

to the shift spring (19).

• Swivel the guide roller (18) down.

• The guide roller (18) should be set parallel to the edge of the pendulum

action roller (12) (see illustration E)

• Do a test run

• To correct the tracking , adjust the adjustment screw for tracking (13) (see illu-

stration F and G, and the function notes on the automatic welding machine).

Illustration E

Illustration F Illustration G

1212 1313

OPERATION Overlap 80/100/120 mm LEISTER Varimat V

WELDING PARAMETERS Overlap 80/100/120 mm LEISTER Varimat V

Operating condition

• Attach the guide bar (26/27).

• Hang strain relief of mains cable (1) in the cable holder (29).

• Adjust the guide bar (27) with the clamping lever (28) to the desired height

• Check the basic setting of the welding nozzle (9). (ex works detail A and C).

• Transport setting:

– Swivel the guide roller (18) upwards.

– Release the transport roller (16) by lifting up with the guide bar (27).

– Push the transport roller (16) by applying a little pressure to the shift spring (19)

to the left until it stops (illustration B).

– Position the hot air blower (8) by pulling the locking lever (11) and swivel it up

until it locks.

• The basic adjustment of the welding nozzle (9)

is done at the factory (Illustration A and C)

• Connect the tool to the mains.

The voltage rating stated on the tool should

correspond to the mains voltage.

Illustration

1–2 mm

70 – 85mm

18 16 12

222

140N 175 N 210N

Illustration H

12 23

Welding pressure

• The welding pressure is transmitted to the

pendulum action roller (12).

• As necessary, the additional weights (22)

and the end weight (23) can be put on

(see illustration H).

Illustration A

1–2mm

USAGE Overlap 80/100/120 mm LEISTER Varimat V

Welding procedure

• Adjust welding parameters, see page 6.

• The welding temperature must be achieved (heating up time approx. 5 min.).

If the temperature is not achieved, reduce the airflow.

•Do a test run.

• Pull the locking lever (11), lower the hot air blower (8) and position it between

the overlapped sheets until it stops. The drive motor will start automatically.

If it does not start, see sensor adjustment, page 5.

The machine can be started manually by pressing key .

• The automatic welding machine is guided along the overlap with the guide

bar (27). Do not apply pressure to the guide bar (27) this could lead to welding

faults. Keep watching the guide roller (18) position.

• After welding, pull the locking lever (11), take the hot air blower (8) out until it

stops and swivel up until it locks.

• When the welding is completed switch off heater with the and keys

on the keyboard (4), so that the welding nozzle (8) cools down.

• Switch off main switch (3).

Tool positioning

• Tip up the Automatic Welding Machine by applying pressure to the guide bar

(27) and position it ready for welding.

• Release the transport roller (16) by lifting it with the guide bar (27).

• Push the transport roller (16) to the left until it stops by applying light pressure

to the shift spring (19).

• Swivel the guide roller (18) down.

•The guide roller (18) should be set parallel to the edge of the pendulum

action roller (12) (see illustration E).

• Do a test run

• To correct the tracking, adjust the adjustment screw for tracking (13) (see

illustration F and G, and the function notes on the automatic welding

machine).

Illustration E

Illustration F Illustration G

1212 1313

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