LESITE LST-WP4 Manual 

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

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

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

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.

Nozzle 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

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

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.

the welding nozzle. Clean the air inlet at the back of the hot air blower.

· 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. 1 One year warranty