BAK LARON Operating Instructions Manual

OPERATING INSTRUCTIONS

Automatic welding machine LARON Version 2.1

Please read the operating instructions carefully before use and keep for further reference!
Before start-up these operating instructions must be examined carefully because we will not
assume any liability for any failures resulting from improper use.

APPLICATION

The Laron is an automatic welding machine for overlap welding of roofing membranes made
of PE, PVC, TPO, ECB, EPDM, CSPE and bitumen. The machine can also be used in areas
close to edges and on uneven surfaces.

TECHNICAL DATA

Voltage VAC 230 400
Frequency Hz 50/60 50/60
Power consumption W 4100 6000
Power regular operation W 2500 4200
Drive m/min. 0.5-7 stepless 0.5-7 stepless
Welding temperature °C 30-620 stepless 30-620 stepless
Air flow % 60-100 60-100
Size LxWxH mm 610x410x320 610x410x320
Weight kg 39 39

BAK Thermoplastic Welding Technology AG 1

SECURITY WARNING

Danger of fire and explosion! The hot air stream of the automatic welding

machine may not be directed to temperature-sensitive objects or living things.
Ensure that a safety distance of 2 m is observed in all directions. Do not point
the hot air stream onto the same position for a long time.

Never use the automatic welding machine in hazardous or inflammable areas.
Heat can reach combustible materials which are hidden.

Danger of burns! All automatic welding machines may only be held and
operated using the handles provided for this purpose.
A risk of burning exists on all uncovered metal parts. Avoid contact with these
parts as they may achieve temperatures of up to 650°C. Let the automatic
welding machine cool down before packing.

The automatic welding machine must be operated using a protective switch or
an isolation transformer. Operating the automatic welding machine is subject to
applicable national regulations. Observe applicable regulations for the
prevention of accidents as well as technical rules for safe and professional
operation.

CAUTION

Before connecting the tool to the mains, check the rated voltage. The mains
voltage must correspond to the rated voltage shown on the tool plate.

Do not leave the tool unobserved!!! The appliance is not to be used by
persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction.
Children must be supervised not to play with the appliance.

Never spray water on the automatic welding machine (Risk of short circuit).

Protect the tool from wet and humidity!!!

Any improper use may result in dangers for the operator or third parties or may adversely
affect machines and assets.
Only use the automatic welding machine if in technically perfect condition and for the
purposes for which they are intended while observing the operating instructions.

The tool can be used for the applications mentioned in the present operating instructions
only!

BAK Thermoplastic Welding Technology AG 2

Stop operating the automatic welding machine if:

- connecting line or plug have been damaged

- safety installations have been damaged

- changes occur in the operating state

EXTENSION CORDS

When using extension cords the minimum diameter of cables must be observed.
Extension cords must be approved and marked for their place of utilisation.

Before operating the machine examine the tool adjustment.
Proceed with adjustments only in cold condition (burn danger!).

NOZZLE ADJUSTMENT

- Changes of the nozzle adjustments can be done if screws are loosened

- For recommended settings use the following sketch

42 -45

2,5

GUIDE ROLLER ADJUSTMENT

- Bring the automatic welding machine into the welding position.

- Push the transport roller to the right in welding position, take care that the spring sheet
engages.

- Push the guide roller downward and fix it with the hexagon nut on the threaded bar.
Outside edge of the overlap, outside edge of pressure roll and outside edge of guide roller
must form a line.
(see following sketch).

BAK Thermoplastic Welding Technology AG 3

START UP OF THE AUTOMATIC WELDING MACHINE

Observe the section concerning safety of these operating instructions.

Before connecting the tool to the mains supply please check that:

- Main switch is on pos. 0 OFF

- Drive switch is on pos. 0

- Heating switch is on pos. 0

- Potentiometer of the air flow is on pos. 0 (100%)

- The hot air blower is on pos. stand by (lifted up)

- Put the plug into the socket

- Put the main switch on pos. 01

The tool now heats up to the last selected set temperature.
To change the set temperature, check the section of the controller adjustment.

CONTROLLER ADJUSTMENT

Temperature unit

Actual temperature

Set temperature

Upward button Downward button

Select on the potentiometer the desired welding speed.
On switching position ON the drive starts immediately and is constantly running.
On switching position AUTO the drive starts only after sliding the nozzle into the welding
seam and stops immediately after taking out the nozzle.

To separate the automatic welding machine from the electric system, change the main switch
to “OFF” und unplug the mains plug.

GUARANTEE AND LIABIITY

For BAK guarantee and liability see the general and sales condition on the back of the invoice
paper.
For the neglect or for damages resulting from it, the manufacturer / supplier will not accept
any liability.
Any utilisation of the automatic welding machine, for other purposes than those for which it is
intended, is subject to the consent of the manufacturer / supplier.
No warranty claims will be accepted if the automatic welding machine has been modified
unless this has been done in consultation with the manufacturer / supplier.

BAK Thermoplastic Welding Technology AG 4

SERVICE AND REPAIRS

Work on electrical parts of welding machine may only be performed by an electrical engineer
in compliance with electro-technical rules.
Do not use the automatic welding machine if the connecting line or the plug is damaged,
repairs have to be done by the manufacturer or authorised service personnel.

For after-sales service and orders please contact:

BAK Thermoplastic Welding Technology AG
Industriestrasse 6
CH-6064 Kerns / Switzerland
Phone: [phone]
Fax: [phone]

We retain all copyrights of all descriptions, drawings and schedules contained in these
operating instructions which may not be reproduced nor be made accessible by third parties or
by competitors, neither in whole nor in part, unless we have expressly consented thereto.

DV 183

DV 077

6600063

6600062

DV 141

DV 233
DV 238
D - 1079
DV 234
DV 056

DV 232
DV 067

DV 178 DV 123

DV 175

DV 167

DV 167DV 052

DV 045

DV 069

DV 078

DV 244

DV 062DV 063

DV 029 DV 068

DV 033

DV 021

DV 022

DV 040

DV 129

DV 130

DV 037

DV 042

BAK Thermoplastic Welding Technology AG 5

DV 208

DV 085

DV 159

DV 089

DV 084

DV 088
DV 209

D - 2286

DV 086

DV 111
DV 112

DV 098

DV 103

DV 142

DV 220

DV 218.1
DV 212.1
DV 219
DV 211.1

DV 215

BAK Thermoplastic Welding Technology AG 6

DV 062DV 124 DV 063 DV 036

DV 042

DV 142

DV 143

DV 128

DV 156

DV 136

DV 068

DV 069

3

DV 137

DV 001DV 029DV 045

DV 146DV 138

DV 012

DV 114

DV 136

DV 153

DV 059

DV 069

DV 029 DV 063

BAK Thermoplastic Welding Technology AG 7

DV 146 DV 045

DV 023DV 013DV 042

Art. no. Description Art. no. Description

6600062 Eron 230V Laron complete 6601161 Sprocket wheel clamp (DV114)

6600063 Eron 400V Laron complete 6601254 Countersunk screw, M6x16 DIN7991 (DV123)

6601246 O-ring 19x3.5 DIN3771 (D-1079) 6601162 Cheese head screw, M6x20, DIN912(DV124)

6601111 Pressure spring (DV001) 6601164 Cheese head screw, M10x40, DIN7984(DV128)

6601112 Sprocket wheel, z=13 (DV012) 6601165 Cheese head screw, M12x35, DIN7984 (DV129)

6601113 Sprocket wheel, z=14 (DV013) 6601166 Cheese head screw, M12x70, DIN7984 (DV130)

6601114 Roller chain (DV153) 6601168 Countersunk screw, M4x10, DIN7991 (DV136)

6601118 Weight 1 (DV021) 6601169 Disk A5,3 DIN9021 (DV137)

6601119 Weight 2 (DV022) 6601170 Disk A5,3 DIN125 (DV138)

6601120 Chain tension adjuster (DV023) 6601172 Cone ring Eron (DV141)

6601121 Guide roller (DV029) 6601173 Disk B8,4 DIN9021 (DV142)

6601123 T-handle (DV033) 6601174 Cheese head screw M8x16, DIN912 (DV143)

6601125 Circlip RA9 (DV036) 6601175 Cheese head screw M5x16, DIN912 (DV146)

6601126 Drag roller (DV037) 6601255 Disk B6,4 DIN9021 (DV156)

6601127 Rocker drag roller (DV040) 6601146 Housing Laron (DV158)

6601128 Drive pressure roller (DV042) 6601231 Front plate Laron (DV159)

6601129 Round belt roller (DV045) 6601235 Planetary gear motor (DV167)

6601133 Fixation block (DV052) 6601237 Transport roller V2A (DV175)

6601135 Bearing (DV056) 6601238 Cover transport roller (DV178)

6601138 Gear sheet (DV059) 6601247 Ground piece (DV183)

6601139 Block guide pillar (DV062) 6601256 Controller Laron 2010 (DV208)

6601140 Guide pillar (DV063) 6601259 Front panel 2 (DV209)

6601212 Rubber ring white (DV067) 6601260 Potentiometer 47K (D-2286)

6601142 Silicon ring (DV068) 6601261 Locking disk (DV211.1)

6601143 Round belt (DV069) 6601262 Locking disk (DV212.1)

6601145 Locking ring Eron, upper part (DV077) 6601263 Handlebar base plate (DV215)

6601148 Alu knob (DV084) 6601264 Handlebar bottom (DV218.1)

6601217 Cam switch, 1-pole (DV085) 6601265 Pressure spring (DV219)

6601218 Cam switch, hand-off-auto (DV086) 6601266 Stainless steel wing nut (DV220)

6601220 Main switch (DV088) 6601274 Shaft 2 (DV232)

6601149 LCD Display (DV089) 6601275 Locking ring Eron, lower part 2 (DV233)

6601152 Grip of steering bar (DV098) 6601276 Base plate 2 (DV234)

6601155 Adjustable clamping lever (DV103) 6601273 Locking pin (DV238)

6601159 Power supply cord 230V 3x2.5 (DV111) 6601277 Mainboard Laron (DV239)

6601160 Power supply cord 400V 3x2.5 (DV112) 6601278 Transformer (DV244)

BAK Thermoplastic Welding Technology AG 8

ERON 230V/400V

6600646

6600647

6600648

6600644

D - 2224

6600606

6600613

6107591

6107592

6600638

5101270

6600639

6600607

6600614

6600616

6600601

6100284

Art.-Nr.: 6600047 Eron230V / 6600048 Eron 400V

6100287 6600653

6113695

5107612

5112693

5101274

5108222

BAK Thermoplastic Welding Technology AG 9

5107613

6600622

Spare parts list Eron 230V/400V

Art. No. Description Qty.

5101270 Gasket 70x48x4 1
5101274 Mica tube 47.6x134 1
5107612 Heating element Laron 230V 1
5107613 Heating element Laron 400V 1
5108222 Overlap welding nozzle 40mm 1
5112693 Thermocouple 1
6100284 Countersunk screw M4x12 TX 3
6100287 Hexagon nut M5 1
6107591 Turbine 1
6107592 Turbine 1
6113695 Clixon 135°C 1
6600601 Air filter 1
6600606 Motor 230V SL 1
6600607 Carbon 2
6600613 Turbine housing lower part 1
6600614 Stripper 1
6600616 Countersunk screw M3x10 TX 6
6600622 Fillister head screwM4x10 TX 5
6600639 Handle 1
6600644 Terminal support 1
6600638 Turbine housing upper part 1
6600646 Elbow 1
6600647 Cable sleeve 290mm 1
6600648 Hose coupling straight 1
6600653 Electronic circuit board 230V/400V 1
D-2224 Plastic hexagon nut PG16 2

BAK Thermoplastic Welding Technology AG 10

BAK Thermoplastic Welding Technology AG 11