BAK LARON User manual

BAK Thermoplastic Welding Technology AG 1
OPERATING INSTRUCTIONS
Automatic welding machine LARON Version .1
Please read the operating instructions carefully before use and keep for further reference!
Before start-up these operating instructions must be e amined 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 L W H mm 610 410 320 610 410 320
Weight kg 39 39

BAK Thermoplastic Welding Technology AG 2
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 e ists 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 e perience 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 3
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 e tension cords the minimum diameter of cables must be observed.
E tension 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
2,5
42-45
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 fi it with the he agon 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 4
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
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.
Actual temperature
Upward button Downward button
Temperature unit
Set temperature

BAK Thermoplastic Welding Technology AG 5
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]
Fa : (0041) 41 6612251
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 e pressly consented thereto.
DV 078 DV 033
DV 077
DV 233
DV 238
DV 175
DV 178 DV 123
DV 167DV 052
DV 045
DV 029 DV 068
DV 042
DV 037
DV 130
DV 129
DV 040
DV 022
DV 021
DV 069
DV 056
DV 234
DV 062DV 063
DV 167
DV 141
DV 232
D - 1079
DV 067
6600062
DV 183
6600063
DV 244

BAK Thermoplastic Welding Technology AG 6
DV 208
DV 089
DV 111
DV 085
DV 086
DV 084
DV 159
DV 088
DV 112
DV 209
D - 2286
DV 098
DV 215
DV 103
DV 212.1
DV 211.1
DV 220
DV 142
DV 219
DV 218.1

BAK Thermoplastic Welding Technology AG 7
DV 062DV 124 DV 063 DV 036
DV 042
DV 142
DV 143
DV 001DV 029DV 045
DV 128 DV 069
3
DV 023DV 013DV 042
DV 068
DV 136
DV 156
DV 029 DV 063
DV 137
DV 146 DV 045
DV 069
DV 114
DV 146DV 138
DV 059
DV 012
DV 136
DV 153

BAK Thermoplastic Welding Technology AG 8
Art. no. Description Art. no. Description
6600062 Eron 230V Laron complete 6601161 Sprocket wheel clamp (DV114)
6600063 Eron 400V Laron complete 6601254 Countersunk screw, M6 16 DIN7991 (DV123)
6601246 O-ring 19 3.5 DIN3771 (D-1079) 6601162 Cheese head screw, M6 20, DIN912(DV124)
6601111 Pressure spring (DV001) 6601164 Cheese head screw, M10 40, DIN7984(DV128)
6601112 Sprocket wheel, z=13 (DV012) 6601165 Cheese head screw, M12 35, DIN7984 (DV129)
6601113 Sprocket wheel, z=14 (DV013) 6601166 Cheese head screw, M12 70, DIN7984 (DV130)
6601114 Roller chain (DV153) 6601168 Countersunk screw, M4 10, 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 M8 16, DIN912 (DV143)
6601125 Circlip RA9 (DV036) 6601175 Cheese head screw M5 16, 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 Fi ation 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 3 2.5 (DV111) 6601277 Mainboard Laron (DV239)
6601160 Power supply cord 400V 3 2.5 (DV112) 6601278 Transformer (DV244)

BAK Thermoplastic Welding Technology AG 9
ERON 30V/400V
5101270 6600613
6107591
6600638
6107592
6600644
6600601
6100284
6600622
6113695
D - 2224 6600648
6600647
6600646
5112693
6100287 6600653
6600607
6600606
6600616 6600639
6600614
5107612
5101274
5108222
5107613
Art.-Nr.: 6600047 Eron230V / 6600048 Eron 400V

BAK Thermoplastic Welding Technology AG 10
Spare parts list Eron 30V/400V
Art. No. Description Qty.
5101270 Gasket 70 48 4 1
5101274 Mica tube 47.6 134 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 M4 12 TX 3
6100287 He agon nut M5 1
6107591 Turbine 1
6107592 Turbine 1
6113695 Cli on 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 M3 10 TX 6
6600622 Fillister head screwM4 10 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 he agon nut PG16 2

BAK Thermoplastic Welding Technology AG 11