Leister UNIFLOOR 500 User manual

Leister Technologies AG
Galileo-Strasse 10
CH-6056 Kaegiswil/Switzerland
Tel. [phone]
Fax [phone]
www.leister.com
[e-mail]
UNIFLOOR
500
EnglishEnglish

2
Table of contents
1. General safety information 3
2. Application 4
2.1. Intended use 4
2.2. Non-intended use 4
3. Technical data 4
4. Transport 5
5. Your UNIFLOOR 500 6
5.1. Type plate and identification 6
5.2. Scope of delivery (standard equipment in the case) 6
5.3. Overview of device parts 7
6. UNIFLOOR 500 control panel 8
6.1. Function buttons 8
6.2. Display 9
6.3. Display symbols for the status display (34) 9
6.4. Display symbols for the welding speed (35) 10
6.5. Display symbols for the welding temperature (36) 10
6.6. Display symbols for the air volume (37) 10
6.7. Status LED display 10
7. Commissioning your UNIFLOOR 500 11
7.1. Work environment and safety 11
7.2. Operating readiness 12
7.3. Positioning the device 14
7.4. Starting the device 15
7.5. Welding sequence 16
7.6. Switching o the device/Maintenance 17
8. UNIFLOOR 500 Quick Guide 18
8.1. Switching on/Starting 18
8.2. Switching o 18
9. UNIFLOOR 500 settings 19
9.1. Adjust track 19
9.2. Wire pressure 20
10. Settings and functions of the UNIFLOOR 500 software 21
10.1.Setting the parameter units 21
10.2.Setting the welding parameters 21
10.3.Cool down mode 21
10.4.Power saving mode – Eco mode 21
11. UNIFLOOR 500 warning and error messages 23
12. FAQ, causes and actions UNIFLOOR 500 24
13. Accessories 24
14. Service and repair 24
15. Training 24
16. Warranty 25
17. Declaration of Conformity 25
18. Disposal 25
Table of contents

3
UNIFLOOR 500
Welding Machine
Congratulations on your purchase of the UNIFLOOR 500.
You have chosen a first-class hot-air welder.
It was developed and produced in accordance with the latest state-of-the-art technology in the plastics-processing
industry. It has also been manufactured using high–quality materials.
You can find more information on the UNIFLOOR 500 at www.leister.com
Please keep all safety information and instructions for future reference.
1. General safety information
Warning
Caution
Danger to life. Before opening the device, pull the power plug out of the socket, because voltage-
bearing components and connections will be exposed when it is opened.
Danger of fire and explosion. Never use the hot-air welder in explosive or readily inflammable
surroundings. Maintain sucient distance from combustible materials or explosive gases at all times.
Danger of burns
Do not touch the heating element tube, nozzle and linoleum flap when hot. The device should always
be allowed to cool down first.
Do not point the hot-air flow at people or animals.
Connect the device to an outlet with a protective conductor. Any interruption of the protective conductor
inside or outside of the device is dangerous.
Only use extension cables with protective conductors.
The local supply voltage must match the nominal voltage specified on the device. If the line voltage
fails, then the main switch and the drive must be switched o (extend hot-air blower).
If the device is being used on construction sites, a fault current circuit breaker must be used to
protect site personnel.
The device must be monitored continuously during operation. Waste heat can come into contact
with flammable materials that are not in view.
The device may be operated only by trained specialists or under their supervision. Children are not
permitted to operate the device.
Protect the device from moisture and wet conditions.

4
UNIFLOOR 500
100 V
UNIFLOOR 500
120 V
UNIFLOOR 500
220 – 240 V
V~ 100 120 230
Hz 50/60 50/60 50/60
W1500 1800 2300
°C
°F
100 – 560
212 – 1040
%45 – 100
m/min
ft/min
0.7 – 7.5
2.2 – 24.6
LpA (dB) 70 (K = 3 dB)
kg
lbs
15.5
34.2
a) mm / inch
b) mm / inch
c) mm / inch
d) mm / inch
562 / 22.1
289 / 11.4
440 / 17.3
800 / 31.5
The UNIFLOOR 500 is intended for professional use for laying elastic floor coverings.
Closing of joints is possible up to five centimeters close to the wall.
Welding procedures and types of materials
• Thermal welding of suitable plastic coverings
• Thermal jointing of suitable natural coverings
Only use original Leister spare parts and accessories; otherwise, any warranty and/or guarantee claims will be
invalidated.
Any other use of the UNIFLOOR 500 or any use beyond the type of use described is deemed improper use.
2.1 Intended use
2.2 Non-intended use
We reserve the right to make technical changes.
2. Application
3. Technical data

5
5
21
19
Use only the transport box included in the scope of delivery (see scope of delivery) and the handle fitted on the
transport box for transporting the hot-air welder.
To manually raise the semi-automatic hot-air welder,
use the carrying handle (5).
To position the hot-air welder, press the guide bar
(19, 21) and then roll the UNIFLOOR 500 this way into
the desired welding position.
4. Transport
Comply with applicable national regulations regarding the carrying or lifting of loads.
The weight of your UNIFLOOR 500 including the transport box is 20 kg (15.5 kg without transport box).
Two persons are required for transportation with the transport box.
Danger of burning
Allow the hot-air blowers (7) to cool down suciently prior to transport (see Cool-Down-Mode,
UNIFLOOR 500). Never store flammable materials (such as plastic, wood, or paper) in the transport box.
Never use the carrying handle (5) on the device or on the transport box for transporting with a crane.

6
5. Your UNIFLOOR 500
5.1 Type plate and identification
5.2 Scope of delivery (standard equipment in the case)
Example:
The part no. and serial number are on the type plate (17) of your device. Please always refer to this information
for all inquiries to our representative or the authorized Leister Service Center.
• UNIFLOOR 500 hot-air welder
(guide bar folded in)
• Upper part of the guide bar (separately in the case)
• Welding rod holder
• Side cutter (integrated in the transport axle)
• Pin wrench for hexagon socket (SW3)
• Pin wrench for torx key (T15)
• Folder
• Nozzle positioning gauge

7
1
1. Power cord
2. Operating unit (see Chapter 9)
3. Cover
4. Opening for attaching any holding/carrying handles
and device security
5. Carrying handle
6. Welding nozzle
7. Hot-air blower
8. Drive roller
9. Transport roller
10. Guide roller
11. Wire pressure roller
12. Wire guide eye
13. Lever of the wire pressure roller
14. Star grip screw
15. Main switch (On/O)
16. Wall switch-o
17. Nameplate with type designation and series
identification
18. Locking screw for guide bar
19. Lower guide bar
20. Clamping lever on the guide bar
21. Guide bar top
22. Spiral holder for power cord (with snap-in hook)
23. Locking screw for welding rod holder
24. Welding rod holder
25. Rotary plate
26. Locking screw on the rotary plate
27. Side cutter (in holder)
28. Linoleum flap
29. Wire guide tube
5.3 Overview of device parts

8
32
33
32
31
30
6. UNIFLOOR 500 control panel
6.1 Function buttons
Function buttons
The operating unit (2) of the UNIFLOOR 500 consists of the function buttons with which you can activate and/or
deactivate the drive or heating, the Select and confirm button for selecting the setpoints to be configured, as well
as the display on which the currently selected setting is displayed.
30. Drive “On/O” button
31. Heating “On/O” button
32. Minus/Plus buttons
33. Select and confirm button
Symbol Name Function
Motor “On/O” button (30) Switches drive on and o
Heating “On/O” button (31) Switches heating on and o
Blower symbol No function
Minus/Plus buttons (32) Sets the required setpoint in
0.1m/min, 10°C or 5% steps
Select and confirm button (33) Switches between the setpoint values to be set

9
6.2 Display
6.3 Display symbols for the status display (34)
The display is subdivided into four areas:
35 Displays welding speed in m/min or ft/min
36 Display of the air temperature in °C or °F
37 Display of air volume in %
34 Status display
During operation, the setpoints of the welding parameters (drive in m/min or ft/min, temperature in degrees
Celsius or Fahrenheit), air volume in percent and, if applicable, information notes are displayed.
Use the Select and confirm button (33) to switch between the welding parameters and adjust the values indi-
vidually with the Minus/Plus arrow buttons (32).
Symbol Meaning
Symbol for Cool-Down mode.
(see also Cool-Down mode 10.3)
Symbol for Eco mode
Automatic power saving mode after a predefined time of 8 minutes.
(see also Eco mode 10.4)
Symbol for warning note, warning message or error message.
Allow the device to cool down (see also Warning and error messages 11)
Reference to service.
Symbol for device error message (hardware).
The device is no longer ready for operation. Contact an authorized Leister
Service Center.
(Note the respective error code in Chapter Warning and Error Messages 11).

10
Actual and setpoint value of the welding speed
Actual and setpoint value of the air volume
Welding temperature too low, heat-up process.
Up arrow shows that the desired higher temperature has not yet been reached.
The flashing number designates the currently achieved actual value (430);
the value below (450) shows the setpoint of the individual setting.
Welding temperature too high, cool-down process.
Down arrow shows that the desired lower temperature has not yet been reached.
The flashing value designates the currently achieved actual value (470);
the value below (450) shows the setpoint of the individual setting.
6.4 Display symbols for the welding speed (35)
Heating
The LED on the Heating “On/O” button (31) displays the respective condition of the heating.
LED status heating “On/O” (31) Condition
LED o Heating is switched o.
LED flashes green Heating is switched on. Temperature is outside the tolerance range.
LED green Heating is switched on. Temperature is within the tolerance range.
6.5 Display symbols for the welding temperature (36)
6.6 Display symbols for the air volume (37)
6.7 Status LED display
Heating and drive
If both LEDs of the Heating “On/O” button (31) and the Drive “On/O” button (30) flash simultaneously,
there is an error (see Chapter Warning and Error Messages 11).
drive
LED status drive “On/O” (30) Condition
LED o Drive is switched o
LED green Drive is switched on
The LED on the Drive “On/O” button (30) displays the condition of the drive.

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7. Commissioning your UNIFLOOR 500
7.1 Work environment and safety
Safety precautions
Power cord and extension cable
Health risk
Welding PVC materials creates harmful hydrogen chloride vapors.
The hot-air welder should be used only in well-ventilated indoor areas.
Danger of burns
Do not touch the heating element tube, nozzle and linoleum flap when hot. The device should always
first be allowed to cool down. Do not point the hot-air flow at people or animals.
Danger of fire and explosion
Never use the hot-air welder in explosive or readily inflammable surroundings. Maintain sucient
distance from combustible materials or explosive gases at all times.
Read the material safety data sheet from the manufacturer of the material and follow that company's
instructions. Be careful not to burn the material during the welding process.
Only use the device on fireproof surfaces.
In addition, comply with national statutory requirements regarding occupational safety (securing per-
sonnel and electrical devices).
• The local supply voltage must match the nominal voltage specified on the device. If the line
voltage fails, then the main switch and the drive must be switched o (extend hot-air blower).
• The power cord (1) must be able to move freely and must not hinder the user or third parties
during work (trip hazard).
• The extension cables must be authorized for the utilization site (e.g., outdoors) and be marked
accordingly.

12
19 18 16
21
20
123
Obstacle Wall
7.2 Operating readiness
Check nozzle setting
Installing the guide bar
• Check nozzle setting: Nozzle must have a distance of approx. 2-3 mm from the base material.
1. Loosen the locking screw of the guide bar (18).
2. Fold up the guide bar 90° and retighten the locking screw of the guide bar (18). Make sure that the guide
bar is positioned perpendicular (90°) to the machine, otherwise the function of the wall switch (16) is not
guaranteed.
3. Push the guide bar at the top (21) into the guide bar at the bottom (19) and lock into place at the desired
height with the clamping lever on the guide bar (20).
Depending on where the automatic welder is used, it can be helpful to completely disassemble the guide bar.
For example, if there is an obstacle (radiator or similar) on the wall.
2 - 3 mm

13
23
24
26
25
1
1 2
2 3
24 25
26
Borehole
Welding rod roller
Mounting the welding rod holder
Installing the welding rod roller
1. Loosen the locking screw for the welding rod holder (23).
2. Insert the welding rod holder (24) into the borehole and tighten the locking screw for the welding rod
holder (23).
1. Loosen the locking screw on the rotary plate (26), remove the rotary plate (25).
2. Place the welding rod roller on the welding rod holder (24).
3. Push the rotary plate (25) back onto the welding rod holder (24). Then clamp the welding rod roller
between the two rotary plates (25) as firmly and centrically as possible and tighten the locking screw on
the rotary plate (26) at the same time.

14
29
10
13
12
11
28
28
Welding joint
Welding rod
Lever
7.3 Positioning the device
• Position the automatic welder over the joint to be welded.
• The guide roller (10) must be located in the welding joint.
• Fold up the wire pressure roller (11) using the lever of the wire pressure roller (13).
• Insert the welding rod through wire guide eye (12) and wire guide tube (29), pull through under the wire
pressure roller (11) and place in the welding joint.
• Lower the wire pressure roller (11) by actuating the lever of the wire pressure roller (13).
• Check whether the welding rod is correctly located in the welding joint and centrally under the wire
pressure roller (11).
• To grout the linoleum, the linoleum flap (28) must
be folded down (closed flap).
• For welding PVC, the linoleum flap (28) must be
folded up (opened flap).
Closed flap for linoleum
Open flap for PVC
Do not touch moving parts
There is a risk that fingers or other body parts may become trapped and crushed. Do not handle any
other moving parts when operating the wire thrust roller lever.
Risk of burning
Do not touch the metallic surfaces of the linoleum flap and the welding nozzle when hot. Only open or
close the linoleum flap by moving the black plastic lever of the linoleum flap. Be careful when inserting
the welding rod.

15
7.4 Start UNIFLOOR 500
• Once you have prepared the working area and the UNIFLOOR 500 in accordance with the description, connect
the device to the mains voltage.
• Mains voltage must match the voltage on the nameplate.
• Switch on the device at the main switch (15).
• Now switch on the heating (Heating “On/O” button, 31).
After connection, the start screen appears briefly on the display of the operating
unit (2) with the version number of the current
software release and the device designation.
If the device was allowed to cool down beforehand, this will be followed by a static
display of the setpoints for the most recently set welding parameters.
At this stage, the heating, blower and drive are switched o.

16
7.5 Welding sequence
Preparing for welding
Preparing for welding
During the welding process
• Make sure that the welding temperature has been reached before commencing
work (the heating-up time is 3 − 5 minutes).
• Now carry out test welds in accordance with the welding instructions of the
material manufacturer and/or national standards or regulations and inspect the
results. Adjust the welding profile as necessary.
• The welding process is started by pressing the Drive “On/O” button (30). The fan is set to the preset air
volume and automatically lowered after approx. 5 seconds. The drive will start automatically.
• Check the welding process.
• Guide roller (10) must run in the joint.
• Welding bead will be visible depending on the wire. If necessary, correct settings.
Welding speed, air temperature and air volume are monitored continuously.
If an actual value deviates from the setpoint according to the individual settings, this is indicated in the working
display (see also Chapter 6.4–6.6 ‘Display symbols’).
As soon as you have switched on the heating, you will see a dynamic display of the
current air temperature (setpoint and actual value). All welding parameters (welding
speed, temperature and air volume) can be set.
Do not touch the drive roller
There is a risk of inadvertently becoming caught and being pulled in. Do not wear articles of clothing
such as scarves or shawls. Tie up long hair or protect it by wearing headgear.

17
7.6 Switching off the device/Maintenance
Switch o the heating with the Heating “On/O” button (31).
Finishing welding
Wall switch (16)
• In case of contact with the wall or other obstacles, the drive is stopped and the hot-air blower is automatically
swiveled to the rest position.
Drive “On/O” button (30)
• The welding process is also stopped by pressing the Drive "On/O" button (30). The hot-air blower is
automatically swiveled to the rest position.
If no button is pressed 1.5 minutes after the end of the welding, the air volume is automatically reduced to 45%.
During the next welding process, the air volume is increased back to the previously set value.
• Wait until the device has cooled down.
• Check the power cord (1) and plug for electrical and/or mechanical damage.
• Clean the welding nozzle (6) with a wire brush (available as an option).
After finishing the welding work, switch o the heating with the Heating “On/O”
button (31).
• The device switches to cool down mode.
• The blower switches o automatically after approx. 6 minutes.
• Then disconnect the power cord (1) from the mains.

18
QG UNIFLOOR 500 / Art. 170.135 / 10.2020
User Manual:
leister.com/um-unifloor500
UNIFLOOR 500 Quick Guide
2
6
1a
1b
1 5
2
4
3
4
5 min
6
3
ON
5
OFF
8. UNIFLOOR 500 Quick Guide
8.1 Switching on/Starting
8.2 Switching off
1. Check guide bar position. The bar should be positioned perpendicular (90°) to the machine.
2. Connect the plug of the power cord (1).
3. Switch on the main switch (15).
4. Switch on the heating with the Heating “On/O” button (31); wait 3 to 5 minutes until the desired tempera-
ture is reached.
5. Lower the wire pressure roller (11) with the lever of the wire pressure roller (13).
6. Use the Drive “On/O” button (30) to switch on the drive.
1. Switch o the drive with the Drive “On/O” button (30) (1a) or wall switch (16) (1b).
2. The wire pressure roller (11) with the lever of the wire pressure roller (13).
3. Switch o the heating with the Heating “On/O” button (31).
4. Wait for the end of the cool-down process (approx. 5 minutes).
5. Switch o the main switch (15).
6. Pull out the plug of the power cord (1).

19
40
13
11
38
29
39 10Nozzle positioning gauge
9. UNIFLOOR 500 settings
9.1 Adjust track
• Check the alignment of the guide roller (10), welding nozzle (6) and wire pressure roller (11).
These three components must be in line.
• Lift the wire pressure roller (11) using the lever of the wire pressure roller (13).
• Place the nozzle positioning gauge (included in the scope of delivery) on the floor and place the hot-air
welder on top of it as shown in the image below.
• Swivel the hot-air blower (7) manually to the lower stop.
• Check whether the welding nozzle (6) is parallel to the corresponding groove in the nozzle positioning gauge.
• If not, loosen the 4 hexagon socket screws (40) using the supplied pin torx wrench (T15) and align the
nozzle so that it is parallel to the groove. To do this, you can swivel the hot-air blower (7) up and down as
desired. Then retighten the 4 screws.
• Loosen the locking screw of the wire pressure roller (38) with the supplied hexagon pin wrench (SW3).
• With the lever of the wire pressure roller (13) lower the wire pressure roller (11) and, if necessary, align
laterally so that the guide roller (10), welding nozzle (6) and the wire pressure roller (11) are centered in
the respective groove of the nozzle positioning gauge.
• Tighten the locking screw of the wire pressure roller (3).
• Check the alignment of the wire guide tube (29) to the wire pressure roller (11). The lower part of the
wire guide tube (29) must be centered to the wire pressure roller (11).
• If the orientation of the wire guide tube (29) is not correct, loosen the locking screw of the wire guide tube
(39).
• Align the wire guide tube (29) and retighten the locking screw of the wire guide tube (39).
Danger of burns
Do not touch the heating element tube, nozzle and linoleum flap when hot. The device should always
first be allowed to cool down.
Before setting up the UNIFLOOR 500, disconnect the power cord (1) from the device.

20
31
14
41
Pressure
spring
9.2 Wire pressure
Adjusting the wire pressure
• The force exerted on the welding rod by the wire pressure roller (11) during the welding process can be set
by means of the star grip screw to adjust the wire pressure (14).
• Turn the screw clockwise to increase the wire contact pressure and counterclockwise to reduce it (also note
the +/- symbols on the screw head). The force exerted by the pressure spring on the wire pressure roller (11)
is thereby increased or reduced.
• Increase or decrease the wire contact pressure to optimize the welding process for dierent welding rod
diameters and materials.
• In any case, the eect of the setting of the wire contact pressure on the welding result should be verified by
appropriate test welds.
Reset wire contact pressure to factory setting
• If you want to reset the wire contact pressure to the factory default setting, you can use the wire pressure
reset lever (41). By default, the wire contact pressure is in the middle range.
• Turn the star grip screw (14) counterclockwise to adjust the wire contact pressure so that there is a few milli-
meters of air under the screw head.
• Swivel the wire pressure reset lever (41) under the screw head of the star handle screw (14) to adjust the
pressure on the pressure roll (set position).
• Rotate the star-shaped handle screw (14) clockwise to adjust the wire contact pressure until it touches the
wire contact reset lever (41).
• Swivel the wire pressure reset lever (41) back (basic position).
Wire pressure reset lever in the basic position Wire pressure reset lever in the setting position