16
OPERATING
Leister WELDPLAST S4 / EC4 hand extruder
To disassemble the
hot-air tube (44),
firstly remove the
welding shoe (8).
After loos-
ening the countersunk
locating screw (45)
on the tube
clamp (10)
and the
clamping
screw (47)
on the hot-air tube connector, the complete unit can be removed.
Assembly in the reverse
sequence.
To ensure no pre-heated air is lost
when reassembling, the unit must
be pushed on the
hot-air blower
(16)
as far as possible.
Work with temperature resistant gloves only.
Danger of getting burned!
Replacing the pre-heating nozzles
To disassemble the pre-heating nozzle, loosen the
clamping screw (43)
on the
side and pull the
pre-heating nozzle (9)
off the
hot-air tube (44).
To ensure no
pre-heated air is lost, the nozzle is pushed on the
hot-air tube (44)
as far as it
goes. Take care that the nozzle is parallel to the nozzle shoe.
Replacing the hot-air tube
Pre-heating nozzles
There are three different
pre-heating nozzles (9)
available according to the requi-
red welding seam width. The nozzle cross-sections comply with DVS guidelines.
Nozzle 1
Seam widht
up to 15 mm
Nozzle 2
Seam widht
16 to 20 mm
Nozzle 3
Seam widht
21 to 40 mm
16
44
45
10
8
43
9
47