Leister VARIANT T1 Instructions D'utilisation page 39

FAQ
• 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 (2.3 Standby Setup, Page 38).
• 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), see page 40 / 41.
• 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 (1.8 Cooling, page 36)
– Move welding nozzle (9) into welding position
– Tighten screw (30) slightly with a screwdriver, then turn screw (30)
back approx. 1/2 revolution.
• Hot air welding machine moves away to the sides.
– Carry out track fine adjustment of the control roller (14) as follows:
– Allow welding nozzle (9) to cool (1.8 Cooling, page 36)
– 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 (1.8 Cooling, page 36)
– 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
If the drive motor still does not start automatically, the service centre must be contacted.
Error – Cause – Remedy
OFF
OFF
9
30
14
9
16
32
31
8
9
7
39