Description Of Functions; Welding Preparation; Operating Conditions - Leister TWINNY T Instrucciones De Funcionamiento

Description of functions

• Heating system The hot air temperature is steplessly
adjustable and electronically controlled. The heat
transmission occurs with optimum combina tion of
all the advantages of contact hot air.
The flexible combination wedge contains three heating zones:
a
Pre-heating, drying cleaning of the material
b
Contact heating
c
Material plasticising with hot air
19 Pinch roller
20 Guide roller
22 Lower drive/pressure roller
23 Upper drive/pressure roller
• Welding Pressure
pressure rollers. The swivel head guarantees the equalisation of the pressure to both welded sections
(C and D) as well as on a welded seam without test channel.
This allows T-joints to be welded easily. During the welding process the welding pressure adjusts itself linearly
to the change in material thickness of the geomembrane liner.
Cross sectional diagram of an overlap weld
Seam thickness reduction = A – B
A Thickness of the upper and lower membrane
B Thickness of the welded seam D Welded section 2
C Welded section 1
• Drive Double drive system, is steplessly adjustable and elec tron ically controlled. The automatic control
system with tachogenerator is designed in such a way, that the adjusted welding speed remains constant
independently of the load. The power transmission to the drive/pressure rollers works through a three stage
planetary gear.

Welding Preparation

• Laying
• Mains supply
• Power supply cord

Operating conditions

• Before putting into operation, check power supply cord (1) and connector as well as extension cable for electrical
and mechanical damage.
Attach guide bar (30) or guide handle (16).
•
Move the hot air blower (6) out and lift up until it locks.
•
Connect tool to rated voltage.
120
Rated voltage stated on the device must correspond to line/mains voltage. Extract hot air blower (6)
230
in case of power breakdown.
Start the tool with Main- or Control-Level.
•
d Hot air outlet
e Upper geomembrane liner
f Lower geomembrane liner
steplessly adjustable. The welding pressure is transmitted via a toggle lever to the
E Test channel
Width of overlap 80 mm to 125 mm
Geomembrane liners must be clean between the overlap as well as above and below.
at least 4kW (generator)
supplied with an RCCB
a minimum cable cross section
in accordance with the table.
Heating system cross sectional diagram
Welding direction
c
b
e
230 V~ to 50 m
to 100 m
120 V~ to 50 m
to 100 m
d
a
b
2
3 × 1.5 mm / 3 × 14 AWG
2
3 × 2.5 mm / 3 × 12 AWG
2
3 × 1.5 mm / 3 × 14 AWG
2
3 × 2.5 mm / 3 × 12 AWG
15