Leister VARIANT T1 User manual

VARIANT T1
Leister Technologies AG
Galileo-Strasse 10
CH-6056 Kaegiswil/Switzerland
Tel. [phone]
Fax [phone]
www.leister.com
[e-mail]
®
D
PNLE
USA
F
GB I

20
Congratulations on your purchase of a hot-air welding machine VARIANT T1
You have opted for a first-class hot-air welding machine made of high-quality materials. This device
has been developed and manufactured in accordance with the latest welding technologies. Every
VARIANT T1 undergoes stringent quality checks before leaving the factory in Switzerland.
Table of Contents
Application, Warning, Caution Page 21
Conformity, Disposal, Technical Data Page 22
Device Description, Controls Page 23
Info Icons, Active Icons, Quick Info Page 24
Operational Availability, Device Positioning Page 25
Welding Workflow Page 26
Transport Readiness, Button Combinations Page 27
Work Mode (Section 1) 1.1 Setpoint Value Display
1.2 Work Display Page 28
1.3 Setting the Drive Speed
1.4 Setting the Welding Temperature Page 29
1.5 Setting the Air Volume
1.6 Length Measurement, Blower and Drive Counter Page 30
1.7 Selecting Profiles
1.8 Cooling Page 31
1.9 Standby
1.10 Error Messages
Profile Setup (Section 2) 2.1 Profile Setup Button Combination Page 32
2.2 Creating Profiles
2.3 Standby Setup Page 33
FAQ Page 34/35
Welding Applications Page 36
Versions, Accessories, Training, Maintenance, Service and Repair, Guarantee Page 37
GB

21
Leister VARIANT T1
Hot-air welding machine
• Handheld hot-air welding machine for overlap, hem and piping welding of tarpaulin material (PVC and similar ma-
terials).
•Processing only in well ventilated rooms
Application
Operating Instructions (Translation of the original operating instructions)
GB
Read the operating instructions carefully before starting
the device and keep them for future reference.
Danger of death when opening the device, as live parts and connections are
exposed. Remove the plug from the socket before opening the device.
Risk of fire and explosion if hot-air welding devices are used incorrectly, especially
in the vicinity of flammable materials and explosive gases.
Danger – can cause burns! Do not touch the welding nozzle while it is hot.
Allow the device to cool.
Do not direct hot-air stream towards people or animals.
Warning
Connect device to power socket with protective earth conductor. Any break in
the protective earth conductor inside or outside the device is dangerous!
Only use extension cables with protective earth conductor!
The device must not be left unattended when in use.
Heat can reach combustible materials which are out of sight.
The device may only be used by trained personnel or under their supervision.
Children may not use the device under any circumstances.
When using the device on building sites, a residual current circuit breaker is
essential for the safety of persons there.
Rated voltage stated on the device must correspond to line/mains voltage.
N 61000-3-11; Zmax = 0.164 Ω+ j 0.102 Ω. If necessary, consultate supply
authority.
Move out hot-air blower upon mains failure.
Keep away from wet and damp areas.
FI
230
400
Caution
Device must not be lifted at additional weight.

22
Leister Technologies AG, Galileo-Strasse 10, CH-6056 Kaegiswil/Switzerland confirms that this product in the
version put into circulation by us, fulfils the requirements of the following EU directives.
Directives:
2006/42, 2004/108, 2006/95, 2011/65
Harmonised standards: EN 12100-1, EN 12100-2, EN 14121-1,
EN 55014-1, EN 55014-2, EN 61000-6-2
EN 61000-3-2, EN 61000-3-12, EN 61000-3-3, EN 61000-3-11 (Zmax)
EN 62233, EN 60335-2-45, EN 50581
Kaegiswil, 09.11.2012
Bruno von Wyl, CTO Beat Mettler, COO
Power tools, accessories and packaging should be recycled. For EU countries only: do not dispose
of power tools in your household rubbish! According to the European Directive 2002/96 on waste elec-
trical and electronic equipment and its implementation in national law, power tools which can no longer
be used must be collected separately and recycled.
Disposal
Conformity
Technical Data
Voltage V~ 200, 230, 400 (2 LNPE) V~ 200, 230, 400 (2 LNPE)
Power consumption W 4200, 3680, 5700 W4200, 3680, 5700
Frequency Hz 50 / 60 Hz 50/60
Temperature °C 100 – 620 infinite °F 212 – 1148 infinite
Drive m/min. 1.5 – 18 infinite ft/min 4.9 – 59.1 infinite
Air volume % 40 – 100 % 40 – 100
Emission level LpA (dB) 70 LpA (dB) 70
Weight kg 22 lbs 48.5
without power supply cord
Dimensions L ×W×H mm 500 × 400 × 195 inch 19.7 × 15.8 × 7.7
Conformity mark 2
Safety standard
Type of certification
Protection class I 1
Connection voltage non-switchable
The right to make technical changes is reserved

23
Device Description
1Power supply cord
2Housing
3Main switch
4Controls
5Display
6Sensor
7Set screw for sensor
setting
8Hot-air blower
9Welding nozzle
10 Locking cam for hot-air
blower
11 Pressure roller
12 Diverting roller
13 Hold-down device
14 Control roller
15 Guide roller
16 Additional weight
17 Carrying handle
18 Cheese head screw
19 Guide bar bottom
20 Guide bar top
21 Clamping lever for guide bar top
22 Holder for power supply cord
23 Round belt
24 Screw lever for guide bar bottom
25 Swivel axis adjustment screws
26 Transport roller
27 Handle for lifting device
28 Holding handle
29 Device holder angular adjustment
30 Locking screw for welding position
31 Locking screw for track fine
adjustment
32 Lever for track fine adjustment
33 Guide bar handle
34 Nozzle gauge
Controls (4)
For switching the hot-air welding machine VARIANT T1 On / Off
Drive
Sets the drive speed
Heating
Sets the welding temperature
Blower
Sets the air volume
e-Drive
The e-Drive serves as a navigator.
It has two functions:
Turn left or right in order to set diverse
menus or values
Press to confirm or to activate
Main switch (3)
Guide bar, optional
1
18
2
25
5
4
10 14
21
3
33
9
8
29
28
16
19
24
20
11
12
13
23
17
17
22
22
26 27
15
630 7
31 32
40mm
34

24
Active Icons
Info Icons
The following icons are shown on the display for information.
Welding nozzle cooling
down
Contact authorised
service centre
Device in Standby mode,
device is switched off
after a time
Profile
80
%
620
6.0
Profile
80
%
520
6.0
Info Icons
Active Icons
How do I start the hot-air welding machine VARIANT T1?
1. Establish mains connection to the electrical mains
2. Main switch (3) ON
3. Press Drive button Turn e-Drive
4. Press Heating button Turn e-Drive
5. Press Blower button Turn e-Drive
6. Press e-Drive Heating up time approx. 1–2 minutes
7. Carry out a test weld according to the welding instructions of the
material manufacturer and national standards or directives.
Check test weld.
8. Welding
How do I switch off the hot-air welding machine VARIANT T1?
1. Press e-Drive (Fig. 1).
2. Press «Cool down OK» e-Drive and allow to cool approx. 4 minutes (Fig. 2).
Blower switches off automatically.
3. After welding nozzle (9) has cooled down, main switch (3) OFF
Quick Info
040
6.0
620
100
%
ON
(Fig. 1) (Fig. 2)
OFF
Profile
80
%
520
6.0
Indicates that the temperature is rising
Indicates that the temperature is falling Progress bar
The following icons are shown on the display and activated by pressing the e-Drive .
Switch on heating and blower
(if blower not yet running)
Stop the drive
Start the drive
Enter, confirm
Automatic cooling down
(heating off, blower on)
Up in the structure
(back to the previous programme)
Select profile
Save changed name
Change profile name
To next screen
To next screen
Profile
Save
Reset daily distance to zero
Reset

25
Device Positioning
• The tarpaulin material must be clean between the overlap and on the upper and lower side.
• The welding nozzle (9),pressure roller (11),diverting roller (12),round belt (23) and hold-down device
(13) must be clean.
• If the hot-air welding machine is not ready for transport, lift up device using the handle (27) of the lifting
device. The transport rollers (26) are now functioning.
• Move hot-air welding machine to welding position.
• Lower the hot-air welding machine into the welding position with the handle (27). The transport rollers (26) no
longer function and are thus relieved.
• Swivel guide roller (15) downwards.
• The guide roller (15) must be parallel to the pressure roller (11) (Detail C). Detail C
11 15
Connect device to nominal voltage. The nominal voltage indicated on the device must correspond to
the mains voltage.
Move hot-air blower (8) out to parked position if the mains power fails.
•Install guide bar with cheese head screws (18).
– Move the guide bar bottom (19) into the required position using the
screw lever (24) and the guide bar top (20) using the clamping lever (21).
– Hang strain relief of power supply cord (1) into holder (22) on the guide bar or on
the carriage.
230
400
18
18
21
19
24
20
22
27 27
26
Transport readiness
Handle left
Welding position
Handle right
•Insert additional weight (16)
(max. two additional weights).
Operational Availability
• Before putting into operation, check power supply cord (1) and connector as well as extension cable for
electrical and mechanical damage.
• The default setting for the welding nozzle (9) is made at the factory.
• Check the default setting of the welding nozzle (9).
– The check can be made using the nozzle gauge (34) or corresponding to Detail A and B.
Detail A Detail B
11
9
1 mm
34
9

26
– Drive motor starts automatically. No automatic start (Section FAQ, page 35).
– The machine can be started manually with the controls (4) Drive and e-Drive .
– If the drive is started via and e-Drive and the welding nozzle (9) is then pushed in, the hot-air welding
machine will continue operating for about 30 cm after the welding nozzle (9) has been swivelled out (delayed
deactivation of the drive).
– The hot-air welding machine can be guided along the overlap at the guide bar handle (33),carrying handle (17)
or holding handle (28). Guide the hot-air welding machine without pressure onto the guide bar handle (33),
carrying handle (17) or holding handle (28) during welding. Pressure can lead to welding faults
.
Observe position of the guide roller (15).
• End of welding
– After welding, push the welding nozzle (9) out from the welding position to the right using the hot-air
blower (8) and raise.
– Push hot-air blower (8) to the right until the locking cam (10) latches into the recess of the holding
handle (28). The hot-air blower (8) is in the parked position.
– Swivel guide roller (15) upwards.
– After finishing the welding work using the e-Drive (press twice) switch off the heating; this cools down
the welding nozzle (9) and the blower switches off automatically after approx. 4 minutes (Section 1.8, Cooling).
– Turn off main switch (3)
Disconnect power supply cord from power supply.
– Clean welding nozzle (9) with brass brush.
• Preparation
Carry out a test weld according to the welding instruction of the material manufacturer and
national standards or guidelines. Check test weld.
– Set welding parameters for drive, heating and blower (see Section 1, Work Mode).
– Welding temperature must be reached (heating up time approx. 1–2 min.).
• Start welding
– Swivel guide roller (15) downwards.
– Swivel hot-air blower (8) gently open and in until the locking cam (10) is pushed out of the recess.
Immediately lower the hot-air blower (8).
WARNING: If the hot-air blower (8) is pushed in too far, the welding nozzle (9) and pressure roller (11) will
come into contact. The hot-air blower (8) cannot then be lowered.
– Lift upper tarpaulin material slightly in the area of the guide roller and move the welding nozzle (9) between
the overlapping tarpaulins as far as the limit stop by pushing the hot-air blower (8).
Welding Workflow
OFF
15
27
26
10
810 9
– Lowering the transport rollers (26) by swivelling the handle (27). The
pressure roller (11) and diverting roller (12) are relieved for transport
in this way.
9
8
10
9
9
11
12
230
400
15
28

27
Button Combinations
Main switch ON
Keep Drive and Heating buttons pressed
with main switch ON at the same time
Release
Release
Profile
80
%
620
6.0
Release
Release
1
1
2
3
Work Mode
Section 1
Profile Setup
Section 2
ON
ON
Transport Readiness
• Swivel guide roller (15) upwards.
• Push hot-air blower (8) to the right until the locking cam (10) latches into the recess of the holding handle (28).
The hot-air blower (8) is in the parked position.
• Lower the transport rollers (26) by swivelling the handle (27). The pressure roller (11) and diverting roller (12)
are relieved for transport in this way.
27
26 11
12
15 10
8
10
28
Moving Carrying

28
1.2 Work display
• Pressing the e-Drive starts the heating and blower and the Setpoint
Value display changes to the Work display.
• When the welding nozzle (9) is heating up, this is indicated on the
display (5) with a progress bar, arrow (up) and the actual value of
the welding temperature (flashing) (Fig. 5).
Once the setpoint value of the welding temperature is reached,
the arrow and progress bar will no longer be displayed (Fig. 6).
• If the mains voltage is outside (+/- 15%) the specified nominal
voltage, the symbol will be displayed alternately with the measured
undervoltage /overvoltage and the set air volume. If the air
volume is 100 %, the symbol will be displayed flashing with the
measured undervoltage /overvoltage (Fig. 7).
(Only possible with VARIANT T1 230 V~).
Undervoltage/Overvoltage can affect the welding results!
• If no button is pressed after a definite time (welding nozzle (9)
NOT in welding position), the Standby menu will be displayed
(Section 1.9 Standby).
• If the welding nozzle (9) is in the parked position, the menus Cool Down (Section 1.8 Cooling) or Profiles
(Section 1.7 Selecting Profiles) can be selected by turning the e-Drive .
•
If the welding nozzle (9) is swivelled in, the two menu items will disappear on the display (5)
and can no longer be selected
.
• While the welding nozzle (9) is cooling down, this is indicated with a filled out progress bar,
arrow (down) and flashing actual value of the welding temperature on the display (5) (Fig. 8)
.
Profile
620
6.0
Profile
80
%
520
6.0
Profile
620
6.0
Profile
80
%
520
6.0
Profile
1. Work Mode
1.1 Setpoint Value Display (after switching on the device)
Main switch (3) ON
• After switching on the device, the values last set appear on the display (5) (Fig. 3).
• The heating, blower and drive are switched off in this menu.
• Here the user can perform all settings described in the following sections using the
controls (4).
• If, however, the heating element temperature is greater than 80°C when switching on,
the display will immediately change to the Cool Down mode (Section 1.8 Cooling)
in which the blower is always operated at full power, thus cooling down the
welding nozzle (9). You can change back to the Work Mode from this mode at any
time by pressing the e-Drive .
• If the heating element temperature reaches 60°C during cooling, the blower will
continue to operate for 2 minutes and then switch off automatically. The display (5)
changes back to the Setpoint Value display (Fig. 3).
•
Turning the e-Drive to Profiles allows various welding profiles to be selected
(Fig. 4; Section 1.7 Selecting Profiles)
.
Profile
80
%
620
6.0
(Fig. 3)
Profile
(Fig. 4)
ON
(Fig. 5)
(Fig. 7)
(Fig. 6)
(Fig. 8)

29
1. Work Mode
1.3 Setting the drive speed
• The drive speed can be adapted with the Drive button. This can be set by turning
the e-Drive in 0.1 m/min. increments from 1.5 m/min. to 18.0 m/min. This setting
can be carried out with the drive switched on or switched off. If no entry is made by
the controls (4) within 3 seconds, the new drive speed will be accepted.
The Setpoint Value display or Cool Down menu appears on the display (5) (Fig. 9).
• If the welding nozzle (9) is not in the welding position, the (Start) symbol will
appear at the bottom left of the display (5).
• The drive can be switched on by pressing the e-Drive , after which the
(Stop) symbol will appear. The drive speed can be adjusted directly by turning the
e-Drive
.
• Pressing the e-Drive again executes the Stop command, which switches off the drive. The Setpoint Value
display or Cool Down menu appears on the display.
• If the Drive button is pressed for 3 seconds, the display will change to another menu (see Section 1.6
Length Measurement, Blower and Drive Counter).
• You can change to the relevant menu by pressing the Heating or Blower button.
620
6.0
1.4 Setting the welding temperature
• The welding temperature can be changed with the Heating button. The welding
temperature can be set in 10°C increments from 100°C to 620°C by turning the
e-Drive . The setting is accepted after 3 seconds, as long as no button is pressed
within these 3 seconds (Fig. 10).
• If this menu is called up from the Setpoint Value display, the heating and blower
can be started by pressing the e-Drive . Once the heating is switched on, the
Cool Down menu can be selected (Section 1.8 Cooling) (Fig. 11).
• If the Heating button is pressed for 3 seconds, the mains voltage will appear below
the drive speed. This call-up is only possible from the Work display (Section 1.2).
(Only possible with VARIANT T1 230 V~).
• You can change to the relevant menu by pressing the Drive or Blower button.
100
%
620
6.0
Profile
80
%
520
6.0
(Fig. 9)
(Fig. 10)
(Fig. 11)

30
1. Work Mode
1.5 Setting the air volume
• The air volume can be changed with the Blower button. The air volume can be set
in 5% increments from 40% to 100% by turning the e-Drive . .The setting is accepted
after 3 seconds, as long as no button is pressed within these 3 seconds. If the air volume
is set to 100%, no information will appear on the display (5) (Fig. 12).
• If this menu is called up from the Setpoint Value display, the heating and blower
can be started by pressing the e-Drive .
• The Cool Down menu can be selected by pressing the e-Drive
(Section 1.8 Cooling).
• You can change to the relevant menu using the Drive or Heating button.
100
%
620
6.0
1.6 Length Measurement, Blower and Drive Counter
• This menu (Fig. 13) appears if the Drive button is pressed for at least 3 seconds.
• The menu displays all operating times and the distance which the device has travelled
since being switched on. The total distance (here: 1034 m) cannot be changed and shows
the entire path taken since being put into operation.
• The daily distance (here: 012 m) is not reset automatically, but instead can be reset to
zero by the user via by pressing the e-Drive .
• The Time values concern the operating time for the individual components of the
device. The time is assigned to the blower «Blow» (here: 043:58) and the drive «Drive»
(here: 020:10). The «Total» time refers to the operating time. It counts the hours and minutes (here: 143:12)
during which the main switch (3) is switched on.
• If the Back arrow is selected by pressing the e-Drive , you will be taken back to the menu from
which the Drive button has been pressed.
Reset
(Fig. 13)
(Fig. 12)
Reset

31
1.7 Selecting Profiles
•
If the display at the right bottom of the display (5) is activated, profiles can
be loaded by pressing the e-Drive . The display «Select Profile» then appears. A profile
can be selected by turning the e-Drive . The profiles FREE 1, 2 and 3 can be defined
by users themselves (see Section 2 Profile Setup). All other profiles have permanently
assigned values and cannot be defined by the user (Fig. 14).
• Turning the e-Drive activates left or right arrows on the display (5) at the
bottom.
Right arrow by pressing the e-Drive to the next page
(Fig. 15).
Left arrow by pressing the e-Drive to the previous
page (Fig. 16).
•
If the Back arrow is activated by turning the
e-Drive , you will be taken back to the menu from which the
Profiles menu has been selected by pressing the e-Drive
(Fig. 15).
Carry out a test weld according to the welding instruction of the material manufacturer and national
standards or guidelines. Check test weld.
Profile
80
%
620
6.0
3
1
1
2
5
4
6
1
2
3
1
2
1
1
2
Profile
1. Work Mode
1.8 Cooling
• If the symbol is selected by pressing the e-Drive (Fig. 17), the menu
«Cool down OK?» will appear (Fig. 18). Pressing the e-Drive activates the symbol
OK at the right bottom of the display (5). This initiates the cooling process.
• During the cooling down process, the air volume is increased to 100% and the
instantaneous welding temperature displayed (Fig. 19).
If the welding temperature of 60°C is fallen below, the blower will continue to operate
for 2 minutes and will automatically switch off after this time expires.
The display changes to the Setpoint Value display.
• If the e-Drive is pressed during the cooling process, the heating
will start and the Work Display will appear on the display (5) (see
Section 1.2 Work Display)
.
• If the Cool Down menu is active, the drive can be switched on/off
manually via the Drive button.
The Heating and Blower buttons do not have any function.
Profile
80
%
520
6.0
240
(Fig. 14)
(Fig. 15) (Fig. 16)
(Fig. 17)
(Fig. 18) (Fig. 19)

32
1.9 Standby
• If the welding nozzle (9) is not in the welding position and no button is pressed during
a standby time defined by the user, Cool Down mode will automatically start after the
countdown has passed (Fig. 20).
The cooling down process is initiated.
• If the e-Drive is pressed before the countdown has passed (180 seconds), the
display (5) will change to Work Display (see Section 1.2 Work Display).
• Setting the standby time (Section 2.3 Standby Setup).
1. Work Mode
1.10 Error messages
• If a malfunction occurs in the hot-air welding
machine VARIANT T1, a message accompanied
by an error code will appear on the display (5).
This code stands for a more precise
definition of
the error which can be seen in the list below.
• Separate symbols are displayed for error 02
and error 40.
• In case of all other errors, the spanner is displayed for the service prompt.
Error Type of error
Err00 Control electronics defective
Err01 Interruption or short-circuit of the temperature probe
Err02 Heating element / Electronics defective (interruption in one/both winding(s))
Err04 Triac defective (one or both Triacs are defective)
Err08 Blower motor defective
Err40 Undervoltage 25% (mains voltage 75%) only VARIANT T1 230 V~
(Fig. 20)
2. Profile Setup
2.1 Profile Setup Button Combination
Keep Drive and Heating buttons pressed
with main switch ON at the same time.
Release
Release
1
1
2
3
ON

33
2.2 Creating Profiles
• The Profile Setup allows you to create 3 individual profiles for
which the name, and all three parameters Drive , Heating ,
Blower can be freely set and then saved by pressing the
e-Drive (Fig. 21).
•
The various menu items can be selected using the controls (4). Pressing
the e-Drive will take you back to the Profile Setup selection
.
• If the ABC symbol is activated by turning the
e-Drive , you will be taken back to the menu Profile Name
by pressing the e-Drive (Fig. 22).
• In the Profile Name menu, you can turn the e-Drive to select
the characters _ / . / A to Z / 0 to 9, as well as the left or
right arrows and the symbols Save or Back .
• Change profile name
– If you turn the e-Drive you can select the left or right arrows.
If the right arrow is selected by pressing the e-Drive , the
position in the profile name will jump one character (black) to the
right. If you activate the left arrow by pressing the e-Drive , the
position in the profile name will jump one character (black) to
the left (Fig 23).
– Turning the e-Drive allows the required character ( _ / . / A to Z / 0 to 9) to be selected.
If you press the e-Drive the character shown black in the profile name will now be replaced by
the character previous selected.
• Save or reject profile name
– If the Save symbol is selected by turning the e-Drive , the profile name will be saved by
pressing the e-Drive .
– If the Back symbol is selected by turning the e-Drive , the profile name will be rejected
(not saved) by pressing the e-Drive .
2. Profile Setup
1
1
2
3
1
%
62
6
(Fig. 21) (Fig. 22)
Save
G
1
JK
ST
UX
Y
Z
2
5
34 6
789
(Fig. 23)
Carry out a test weld according to the welding instructions of the material manufacturer and
national standards or directives. Check test weld.
2.3 Standby Setup
• The standby times defines the time that has to pass (no buttons pressed, welding
nozzle (9) not in welding position) before the cooling process (see Section 1.8
Cooling) is automatically triggered.
– Turning the e-Drive allows the time to be set from 5 to 120 minutes.
40 minutes are set at the factory.
• Pressing the e-Drive will take you back to the Profile Setup selection.
Save
Save

34
• Failure to reach the set temperature (temperature display flashes)
– Check mains voltage
– Reduce air volume
– Reduce temperature
• Hot-air blower does not lock into welding position
– The ball pressure element must be set as follows:
– Allow welding nozzle (9) to cool
(Page 31, 1. Work Mode, 1.8 Cooling)
– Move welding nozzle (9) into welding position
– Tighten screw (30) slightly with a screwdriver, then
turn screw (30) back approx. 1/2 revolution.
FAQ Error – Cause – Remedy
• Machine switches off automatically
– The machine is automatically switched off after a set time with Standby mode
(factory setting 40 minutes).
If needed, increase standby time (Page 33, 2. Profile Setup, 2.3 Standby Setup).
• Quality of the weld is defective
– Check drive speed, welding temperature and air volume
– Clean welding nozzle (9) with wire brush
–Welding nozzle (9) is set incorrectly
Carry out the adjustment of the welding nozzle (9) as follows
Allow welding nozzle (9) to cool down (Page 31, 1. Work Mode, 1.8 Cooling).
Loosen hexagon screws on device holder.
Carry out angular adjustment via swivel movements at hot-air blower (8).
The welding nozzle (9) must (arrow L) be located on the nozzle gauge (34) and (arrow R) on the substrate.
Tighten hexagon screws on device holder.
Move nozzle gauge (34) to position. Note scale on nozzle gauge (34) .
Move hot-air blower (8) into welding position.
Loosen swivel axis adjustment screws (25).
Align hot-air blower (8) parallel to nozzle gauge (34).
Tighten swivel axis adjustment screws (25).
Remove nozzle gauge (34) and perform test weld.
40mm
A
B
C
D
E
F
G
H
I
J
K
ABCD E F
GH I J K20 mm
40 mm
930
LR

35
• Hot-air welding machine moves away from the weld (overlap welding)
– Carry out track fine adjustment of the control roller (14) as follows:
– Allow welding nozzle (9) to cool
(Page 31, 1. Work Mode, 1.8 Cooling)
– Turn off main switch (3)
– Disconnect power supply cord from power supply
– Remove additional weight (16)
– Tilt welding machine to the side
– Loosen locking screw for track fine adjustment (31)
and push lever for track fine adjustment (32) into
the required position
– Tighten locking screw for track fine adjustment (31)
– Move hot-air welding machine into welding position
– Insert additional weight (16)
– Restart hot-air welding machine
– Perform test weld
• Startup mechanism not working
If the drive motor does not start automatically after moving in the welding nozzle (9), the sensor (6) is possibly set
incorrectly.
– Set sensor (6) as follows:
– Allow welding nozzle (9) to cool (Page 31, 1. Work Mode, 1.8 Cooling)
– Turn off main switch (3)
– Using the hot-air blower (8), swivel the welding nozzle (9) into the welding position and latch in.
– Carry out setting for the sensor (6) at set screw (7) with Allen key;
IMPORTANT: Sensing distance 0.2 – 0.5mm
– Check function
OFF
67
39
If the drive motor still does not start automatically, the service centre must be contacted.
FAQ Error – Cause – Remedy
9
9
8
14
OFF
• Weld seam width is not constant
– Carry out fine adjustment of the guide roller as follows:
– Allow welding nozzle (9) to cool
(Page 31, 1. Work Mode, 1.8 Cooling)
– Move welding nozzle (9) into welding position
– Loosen hexagon screw of the guide roller (15)
– Push guide roller (15) into the required position
– Tighten hexagon screw
– Perform test weld
15
9
31
32

36
Welding Applications
Overlap Hem Hemstitch
(up to 70 mm) Piping cord prefabricated
piping
Standard version • • • Hem / Piping add-on part ••• Hold-down device • • • Piping guide • •
Application Instead of the guide
roller (15) you can also work with the hem / piping add-on part.
Also possible with standard version and fixing of the tarpaulin.
Also possible with standard version and fixing of the tarpaulin.
A base with longitudi- nal groove is recom- mended.
Crease-free fixing of the prefabricated piping.
Type Good fixing of the
tarpaulin.
Marking the hem overlap for better guide control.
Marking the hem overlap for better guide control.
Marking the hem overlap for better guide control. Allow device to run freely, manual guiding of the tarpaulin with piping.

37
Article no. 141.891 VARIANT T1, 230 V / 40 mm welding nozzle / with European plug
Article no. 141.892 VARIANT T1, 230 V / 20 mm welding nozzle / with European plug
Article no. 141.893 VARIANT T1, 400 V / 40 mm welding nozzle / with CEE plug (3LNPE)
Article no. 141.894 VARIANT T1, 400 V / 20 mm welding nozzle / with CEE plug (3LNPE)
Article no. 147.739 VARIANT T1, 200 V / 40 mm welding nozzle / without plug
Article no. 147.748 VARIANT T1, 200 V / 20 mm welding nozzle / without plug
For safety and technical reasons, only Leister accessories may be used.
Article no. 142.650 Hem / Piping kit complete Article no. 139.438 Additional weight
Article no. 140.530 Hem / Piping add-on part Article no. 137.843 T-handle for guide bar top
Article no. 142.221 Hold-down device Article no. 116.798 Brass brush
Article no. 141.326 Piping guide Article no. 142.705 Carrying case
• Leister Technologies AG and its authorised service points offer free welding courses and training events.
Information at www.leister.com.
• The air inlet on the hot-air blower (8) must be cleaned with a brush if soiled.
• Clean welding nozzle (9) with brass brush.
• Check power supply cord (1) and plug for electrical and mechanical damage.
• If the drive counter reaches 400 h or the blower counter reaches 2000 h, the message
«Maintenance servicing» will appear on the display (5) the next time the main switch (3)
is switched on. This message is displayed for 10 seconds and cannot be skipped by the
controls (4).
• Repairs should only be carried out by authorised Leister service centres.
These guarantee a professional, reliable repair service within 24 hours, using original
replacement parts according to the circuit diagrams and replacement part lists.
• This device is covered by a basic guarantee of one (1) year from the date of purchase (proof of purchase is an
invoice or delivery receipt). Damage which arises will be rectified by replacement or repair. Heating elements are
excluded from the guarantee.
•
Other claims are excluded, subject to legal requirements.
• Damage due to wear and tear, overload or improper treatment is excluded from the guarantee.
•
Claims for devices which have been converted or modified by customers are void.
Leister VARIANT T1 Versions
Guarantee
Accessories
Training
Service and Repairs
Maintenance

®
Your authorised Service Centre is:
Leister Technologies AG
Galileo-Strasse 10
CH-6056 Kaegiswil/Switzerland
Tel. [phone]
Fax [phone]
www.leister.com
[e-mail]
© Copyright by Leister
BA VARIANT T1 / 03.2010 / 11.2012 Art. 132.022 (part 1)