Leister BITUMAT B2 Operating Instructions Manual page 11

Tool positioning with lifting device
• Lift hot air welder applying pressure onto upper guide bar (33) and move to weld position
• Swivel the guide roller (19) downwards.
• The distance between Guide roller (19) and Drive roller (13) is 5 mm (Detail C).
• Lift the welding machine with the lifting device (34).
Welding process with lifting device
• Set the welding parameters, see Page 19.
• The welding temperature must be attained (heating-up time approx. 5 minutes).
• Perform a test welding according to the welding instructions of the material manufacturer and the
national standards or guidelines. Approve the test welding.
• Start the drive with the drive switch (4). In case of mains power failure, the drive switch (4) switches
off automatically. Once mains power is restored the drive can be restarted.
• Raise the locking lever (10), lower the hot air blower (8) and move it in between the overlapping sea-
ling sheets as far as it goes. Wait a moment until the material is plasticized and then lower the welding
machine using the lifting device (34).
• The hot air welder is guided along the overlap at the upper guide bar (33). Do not apply any pressure to
the upper guide bar (33); this could lead to welding errors. Observe the position of the guide roller (19).
• After welding pull locking lever (10), move out hot air blower (8) as far as the end stop and swivel up
to the latching point, at the same time switch off drive switch (4).
• On completion of welding work, set the temperature knob (6) to zero; this cools the welding
nozzle (7).
• Set the main switch (3) to 0.
• In the case of line/mains power failure extract hot air blower (8) and set main switch (3) to
position 0
230
• Disconnect power supply cord (1) form the line/mains.
400
Detail C
13
24
15
19
1
8
19
10
33
34
13
7
6 5 4
3