Leister BITUMAT B2 User Manual page 21

Changeover
Converting the hot-air welding machine BITUMAT B2 from 100 mm to 75 mm or vice versa.
230
Disconnect device from power supply.
400
The device may only be converted while the welding nozzle (7) is cold.
Caution when removing the welding nozzle (7); do not damage mica tube and heating element.
• Loosen fastening screws for welding nozzle (30).
• Carefully remove welding nozzle (7) and install new welding nozzle (7).
• Fasten welding nozzle (7) with the fastening screws for the welding nozzle (30).
• Adjustment of the welding nozzle (7), see page 17.
• Loosen screw for adjusting sleeve (29). Move adjusting
sleeve (21) correspondingly and lock with the screw for
the adjusting sleeve (29).
• Loosen fastening screw (14), remove drive roller (13).
• Install new drive roller (13), tighten fastening screw (14).
• Loosen screw-on additional weight (23) and remove replacement drive
roller (22) from holder (27). Position new replacement driver roller (22) in
the holder (27) and fasten with the screw-on additional weight (23).
• Loosen screw for scraper (26) slightly. Move scraper
(25) to the new position. Adjust distance from scraper (25)
to drive roller (13). Tighten screw for scraper (26).
Scraper (25) position for
75 mm driver roller (13)
Opening for 75 mm
welding nozzle (7)
Opening for 100 mm
welding nozzle (7)
23
22
27
25
Scraper (25) position for
100 mm driver roller (13)
26
30 7
29 21
13 14
21