Leister ASTRO Manual De Instrucciones página 15

Welding parameter
Welding pressure
• Insert the two strips of the material to be welded between the lower drive-/pressure roller
(20) and the upper drive/pressure roller (21) by approx. 5 mm (Illustration E). Pull the lever
(9) (Illustration C). The hot wedge is automat-ically pushed forward. Push and hold down
the locking spring (11). Turn the adjustment screw for welding pressure (10) until the drive/
pressure rollers (20/21) slightly touch the material to be welded. Let go the locking spring
(11) and release the tension of the lever (9).
• Keep pushing the locking spring of the adjustment screw (11). Adjust the welding pres-sure by
turning the corresponding adjustment screw (10) according to illustration D and let go the
locking spring (11) at the requested welding pressure.
• Warning: If the maximum welding pressure of 1500 N is exceeded mechanical damage may occur.
Illustration D
[N]
Welding pressure
1500
1375
1250
1125
1000
875
750
625
500
375
250
125
1 2 3 4 5 6 1 2 3 4 5 6
max. welding pressure 1500 N
Welding temperature
• Set the welding temperature with the
and the ambient temperature. The in-put SET value will be shown on the display. Switch on the heating by
pressing the and
H
Heating
Welding Speed
• According on the film or geomembrane liner and the influence of the weather, set the welding speed with the
keys. The in-put SET value will be shown on the display.
Drive
–
H
,
+
keys simultaneously. Heating up time approx. 5 mins.
H
–
+
H
&
–
M
10 11
Screen
+
keys. The temperature is dependent on the material
cursor will blink
on the display
+
SET value setting
ON / OFF
+
SET value setting
ON / OFF
Illustration E
21
ca. 5 mm
Geomembrane
Illustration C
Wedge
20
9
15