LESITE LST-RM1 User manual

LST-RM1
Roofing Hot Air Welder
Manual
Lesite Technology
LESITE

LST-RM1 EN
Please read this manual carefully before using this machine,
and keep it for future reference.
Application
Precautions
It can be applicable for welding PVC-P、PE、TPO、ECB、CSPE、EPDM、PVDF and other
Coated fabric covering, foil and homogeneous or coating sealing film and PE coating
fabric.
Unplug the tools before opening it to avoid of being hurt by exposed
wires or component inside the machine with power.
Incorrect use of it can cause fire and explosion hazard because of high
temperature, especially near combustible materials and explosive gases.
Don’t touch heater tube and nozzle when they are hot. They may cause
burns. Don’t point hot air flow in the direction of people or animals.
The voltage rating stated on the welder must correspond to line/mains
voltage (120V). The drop cable / wire with protective earthed conductors
can only be used.
To ensure operator safety and reliable operation of equipment, the power
supply must be installed power supply and leakage protection at the
construction site.
It must be running at the correct use of manipulation of the operator, or t
hey may cause a fire or explosion caused by high temperature.
Don’t use welder in the water, or on a muddy construction site, to avoid
flooding, rain or moisture.
LESITE
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Parameter
Nameplate
Model LST-RM1
Voltage
Frequency
Power
Temperature
Welding Speed
Welding Width
Size( L*W*H)
Motor
Weight
Certification
Warranty
230 V
50 Hz
3600 W
50 - 620 ℃
1～10 m/min
40 mm
530 × 330 × 280 mm
Brushless
20 Kg
CE
One year
LST-RM1 EN
LESITE
BL
MOTOR
02
The model identification and serial number identification are marked onthe nameplate
of the machine you choose.
Please provide these data when consulting Lesite Sales and Service Center.

Main Parts
18
17
16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
23
22
2120
19
LST-RM1 EN
LESITE
03
1、Drive Silica Roller 2、Drive Roller
3、Round Belt 4、Nozzle
5、Pulley 6、Hot Gun Fixed Plate
7、Pulley Connecting Rod 8、Belt Wheel Fixing Block
9、Floor Plate 10、Guide
11、Hot Gun Fixed Slider 12、Hot Gun Positioning Handle
13、Guide Wheel 14、Guide Wheel Support Block
15、Hot Gun Fixed Seat 16、Locator Fixed Column
17、Laser Line Locator 18、Hot Gun Power Cord
19、Gun 20、Handle Screw
21、Counterweight Block 1 22、Counterweight Block
23、Universal Wheel

Main Parts
LST-RM1 EN
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24、Handrail 25、Clamp
26、Movable Handle 27、General Power Line
28、Cable Connector 29、Handle
30、Lifting Handle 31、Side Wheel
24
26
25
27
28
29
30
31

Controller Panel
LST-RM1 EN
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05
32 36
37
38
39
40
34
33
35
1、ON/OFF switch（40）is used for open the main power of the welder.
2、Open ON/OFF switch (40), LCD display is shown as figure 1, the hot air blower is
under natural wind without heating.
3、Press the button (34) and (35), the screen shows as Figure 2 and the hot air blower
starts to heat until to the setting temperature.
CT: 501℃
ST: 510℃
CV: .0M
SV: 5.0M
Current temp
Setting temp
Current speed
Setting speed
Figure 1
Figure 2
CT: 016℃
ST: -Pause
CV: .0M
SV: 5.0M
Current temp Current speed
Setting speed

1、Welding temperature：
Using bottoms on the panel to set the required temperature. You can
set the temperature according to the welding materials and the ambient temperature.
LCD display will show the set temperature and the current actual temperature.
2、Welding speed：
Using bottoms on the panel to set the required speed according to the
welding temperature. LCD display will show the set speed and the current actual speed.
3、Air volume：
Using the button on the panel to set the air volume, increase the air volume
clockwise and reduce the air volume counterclockwise. When the ambient temperature
is too low and the current temperature can not reach the set temperature, the air volume
can be reduced appropriately.
● The machine has a memory function parameters, namely when you use the welder
next time, the welder will automatically use the last set of parameters without having
to re-set parameters.
LST-RM1 EN
LESITE
Controller Panel
Welding Parameters Setting
06
4、If press the bottoms (33) and (34) at the same time, LCD display shows as figure 1,
the hot air blower is under natural wind without heating.
5、When the welding nozzle is at the right position, press the moving switch (39) and
the welder starts to move and weld. It will stop move if you press the moving switch
again.
6、When the welder starts to move, the LCD display shows as figure 3.
7、The knob (35) is used to adjust the air flow of the air gun, increase the air flow by
rotating clockwise, and reduce the air flow by rotating counter-clockwise.
Figure 3
CT: 501℃
ST: 510℃
CV: 5.0M
SV: 5.0M
Current temp
Setting temp
Current speed
Setting speed

Welding Steps
Positioning The Welder
LST-RM1 EN
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Pressure Lift lever (30) to lift machine, move it to welding position (the edge of upper
membrane should keep in the same alignment with Drive silica roller (1) and the edge
of Guide wheel (13), as shown in figure 4.
1、Setting welding parameters (see above).
2、When the temperature reaches the set value.
3、Welding machine positioning.
4、Pull up the positioning handle (12) of the air gun, lift the air gun (19), lower the air
nozzle (4) and make it close to the submerged membrane. Move the air gun to the
left to insert the air nozzle into the overlap membrane and make the air nozzle in
place. At this time, the welding machine will walk automatically for welding.
5、Always pay attention to the position of the guide wheel (13) and adjust it by touching
the handle (24) lightly if it deviates from the position.
6、 Pull up the positioning handle (12) of the air gun after welding, move the air nozzle
to the right until it stops, and rotate upward until it is locked.
7、After welding, press the button on the control panel at the same time (33) and (34)
and make the air gun in the state of blowing cold air to cool the air nozzle.
8、 Turn off the power supply with the power switch.
Upper film
The edge of upper film
Down film
Figure 4

LST-RM1 EN
LESITE
Instructions For Use
08
In order to prevent the machine from being damaged during transportation, the
machine is fixed in the steel packing box with screws. When using the machine for the
first time, it is necessary to loosen three machine fixing screws and take them out to
remove the machine from the packing box, as shown in the figure above.
Fixing screw
Fixing screw
The handle can be pulled
up and rotated, rotating
so that the handle is at
different angles.
Power cord should be clamped
on the hook to prevent cable
joints from loosening.
Screw down
Unlock
Rotatable

Using Condition
Quality Assurance
· 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.
LST-RM1 EN
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1、The distance between hot air nozzle and ground should be shown as figure 5
（We have adjusted the distance）.
2、 The distance between hot air nozzle and Drive roller should be shown as figure 6
（We have adjusted the distance）. You can adjust Hot air nozzle adjusting screw
figure 7 if the distance is not right.
3
38-45mm
1mm
1-2mm
Figure 5
Nozzle adjustment screw (Nozzle and driving rubber wheel of interval
Figure 6
Figure 7

Error Code
Repairs and Spare Parts
· 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.
LST-RM1 EN
LESITE
10
1
One year
warranty
Error Code Description Measures
Error
T002 No thermocouple
detected
No heating element
detected
Thermocouple failure
in operation
Overheating
1.Check thermocouple connection
2.Replace thermocouple
1.Check heating element connection
2.Replace heating element
1.Check thermocouple connection
2.Replace thermocouple
No thermocouple
detected
1.Check thermocouple connection
2.Replace thermocouple
Operation mode without
thermocouple
under this mode, the temperature
can be set for emergency use
1.Check hot air blower
2.Clean nozzle and filter
Error
S002
CT:999
Err-T001
Error
FANerr
PROPmode
ST:100
Thermoc-
oupleERR

Lesite Roofing Hot Air Welder 07/2022-EN
FUZHOU LESITE PLASTICS WELDING TECHNOLOGY CO.,LTD
Add: 5# Jingpu Road, Pushang Industry Park,
Cangshan, Fuzhou, 350007, Fujian, China
Tel：[phone]
E-mail：[e-mail]
Web：www.lesiteweld.com