LESITE LST-WP4 Bedienungsanleitung

LST-WP4 EN

Please read this manual carefully before using this machine,

and keep it for future reference

Application

Precautions

The new generation roofing hot air welder LST-WP4 offers more application diversity

with the welding of high quality thermoplastic waterproof membrane (PVC,TPO,EPDM,

ECB,EVA, etc.) can be realized quickly in the gutter of the roof, near the edge of the

gutter, near the parapet or in other narrow spaces.

Please confirm that the machine is turned off and unplugged

before disassembling the welding machine, so as not to be

injured by live wires or components inside the machine.

The welding machine generates high temperature and high

heat, which may cause fire or explosion when used incorrectly,

especially when it is close to combustible materials or explosive gas.

Please do not touch the air duct and nozzle(during welding work or

when the welding machine has not completely cooled down),

and do not face the nozzle to avoid burns.

The power supply voltage must match the rated voltage (230V)

marked on the welding machine and be reliably grounded. Connect

the welding machine to a socket with a protective ground conductor.

In order to ensure the safety of the operators and the reliable

operation of the equipment, the power supply at the construction site

must be equipped with a regulated power supply and a leakage protector.

The welding machine must be operated under the correct control of the

operator, otherwise it may cause combustion or explosion due to

high temperature

It is strictly forbidden to use the welding machine in water or muddy

ground, avoid soaking, rain or damp

LST-WP4 EN

Main Parts

16、Operating Handle

15、Guide Bar

14、Power Cable

13、Guide Wheel

12、Fixing Screw

17、Scroll Wheel

1 8 、B e l t

19、Pulley

11、Front Wheel Axle

10、Front Wheel

9、Blower Location Handle

8、Blower Guide

7、Hot Air Blower

6、Welding Nozzle

4、Directional Bearing

3、360 Degree

Rotation Wheel

2、Lifting Handle

1、Carry Handle

5、Driving

Pressure Wheel

LST-WP4 EN

Control Panel

1.Welding temperature：

Using bottoms to set the required temperature. You can set the temperature

according to the welding materials and the ambient temperature. LCD display screen will

show the setting temperature and the current temperature.

2. Welding speed:

Using bottoms to set the required speed according to the welding temperature.

LCD display will show the setting speed and the current speed.

3. Air volume:

Use the knob to set the air volume, increase the air volume

clockwise, and decrease the air volume counterclockwise. When the ambient temperature

is too low and the current temperature does not reach the setting temperature, the air

volume can be appropriately reduced.

● The machine has a memory function parameters, namely when you use the welder next

time, the welder will automatically use the last setting parameters without having to

re-set parameters.

20-Temperature

Rise Button

21-Temperature

Drop Button

22-Speed Rise

Button

23-Speed Drop

Button

24-Air Volume

Adjustment Knob

25-Machine

Walk Button

26-Current Temp.

27-Setting Temp.

28-Current Speed

29-Setting Speed

30-Power ON/OFF

20+21- Press

Simultaneously

Turn OFF/ON Heating

LST-WP4 EN

Positioning Before Welding

2、Lifting Handle

12、Fixing Screw

10、Front Wheel

5、Driving

Pressure Wheel

Lower Film

13、Guide Wheel

upper membrane edge

Upper Film

Press the Lifting Handle (2) to raise the welding machine and move it to the welding

position (the edge of the upper film is aligned with the side edge of the Driving Pressure

Wheel (5), and the edge of the upper film is also aligned with the edge of the Guide

Wheel (13)), loosen the Locking Screw (12) to adjust the position of the Front Wheel (10)

from left to right, and tighten the Locking Screws (12) after adjusting, as shown in Figure.

LST-WP4 EN

Welding Nozzle Setting

Nozzle

pic1

◆ Nozzle default position setting

◆ Adjust the nozzle position by 3 pcs screws

pic2

pic3

35-42mm

1mm

1-2mm

3 pcs Adjusting screws Distance between nozzle and wheel

Nozzle

LST-WP4 EN

Nameplate

Error Code

The model identification and serial number identification are marked on

the nameplate of the machine you choose.

Please provide these data when consulting Lesite Sales and Service Center.

Error Code Description Measures

Error

T002

Error

S002

Error

T002

Error

FANerr

No thermocouple

detected

No heating element

detected

Thermocouple failure

in operation

Overheating

a.Check thermocouple connection

b.Replace thermocouple

a.Check heating element connection

b.Replace heating element

a.Check thermocouple connection

b.Replace thermocouple

a.Check hot air blower

b.Clean nozzle and filter

LST-WP4 EN

Boot Steps

Shutdown Steps

Current Temp. Current Speed

Current Speed

Current Temp.

Setting Temp.

Current Speed

Current Temp.

Setting Temp.

Current Speed

① Turn on the machine, and the LCD display screens are shown as above. At this

time, the air blower does not heat and is in the state of blowing natural wind.

② Press the buttons Temperature Rise (20) and Temperature Drop (21) at the

same time. At this time, the air blower starts to heat up to the setting temperature.

When the current temperature reach the setting temperature, press button Speed

Rise（22） to set speed. The LCD screens are shown as above.

③ Pull up the Blower Location Handle (9) , raise the Hot Air Blower (7), lower the

Welding Nozzle (6) to make it close to the lower membrane, move the air blower

to the left to insert the welding nozzle into the membranes and make the welding

nozzle in place, At this time, the welding machine automatically walks for welding.

The LCD screens are shown above.

After completing the welding work, remove the welding nozzle and return to the

initial position, and press the buttons Temperature Rise (20) and Temperature

Drop (21) on the control panel at the same time to turn off the heating. At this time,

the hot air blower stops heating and is in cold air standby mode while allowing the

welding nozzle to cool down after waiting for the temperature to drop to 60°C, and

then turn off the power switch.

④ Pay attention to the position of the Guide Wheel (13) at all times. If the position

deviates, you can touch the Operating Handle (16) to adjust.

LST-WP4 EN

Daily Maintenance

Use steel brush to clean

the welding nozzle.

Clean the air inlet at the

back of the hot air blower.

LST-WP4 EN

Default Accessories

Quality Assurance

Repairs and Spare Parts

· Spare 4000w heating element · Anti-hot plate

· Steel brush · Slotted screwdriver

· Phillips screwdriver · Allen wrench (M3, M4, M5, M6)

· Fuse 4A

· This product guarantees a 12-month shelf life from the day it is sold to consumers.

We will be responsible for failures caused by material or manufacturing defects. We

will repair or replace defective parts at our sole discretion to meet the warranty

requirements.

· The quality assurance does not include damage to wearing parts (heating elements,

carbon brushes, bearings, etc.), damage or defects caused by improper handling or

maintenance, and damage caused by falling products. Irregular use and unauthorized

modification should not be covered by the warranty.

· It is strongly recommended to send the product to Lesite company or

authorized repair center for professional inspection and repair.

· Only original Lesite spare parts are allowed.

One year

warranty

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