Operation; Start Of Operation, Switching The Machine On - Hürner HWT 400–WeldControl Bedienungsanleitung

Angle scale and arrangement
cast-aluminum master clamps
the desired angle in the chart on the base plate. Keep in mind that
the angle value on the chart is the desired angled of the finished
bend. For instance, if you plan to produce a 45 deg. joint, align both
clamping assemblies on the 45 deg. value of the chart rather than on
the 22.5 deg. value.
For the production of tees, crosspieces or Y branch-offs, the clamps
have to be aligned and fastened according to the sketch for the weld-
ing operation in hand. Refer to Sect. 5.2 for more information.
Under the slots and holes in the master clamps meant to be used for
fastening them, only those holes of the base plates surrounded by a
triangle, square or hexagon or crossed out by an X are accessible which
are actually meant to have fastening bolts fitted into them.
When the master clamping assemblies are ready, install the appropri-
ate reducer inserts in them if the size of the components to be welded
is smaller than the diameter of the master clamps. When fastening
the reducers in the clamps, be sure not to damage the surface of the
clamps by impacts of the reducers or the tools you use.
4

Operation

4.1

Start of Operation, Switching the Machine on

Before the machine is turned on, check the oil level of the
hydraulic unit and top up with HF-E 15 hydraulic oil as
needed. A visor that allows checking the oil level is visible
Important
in an opening at the maintenance door (refer to the figure
in Sect. 3.2.2).
The heating element surfaces have to be free of grease and
clean, or be cleaned. The transport locks that secure heating
element, facing tool, and control terminal must be unlocked
Important
before operating the machine, if it was just transported.
Place the machine on a level surface and ensure it cannot slide. Before
the machine can be used for the first time, it has to be leveled. To level
it, adjust the height of the legs of the machine. All height-adjustable
legs must sit firmly on the floor.
Provided all occupational and operation safety requirements, as indi-
cated in Sect. 2, the machine can be connected to the power supply
and turned on at the On/Off switch.
14
EN
of fastening holes for
HÜRNER HWT 400–WeldControl User's Manual
H Ü R N E R S c h w e i s s t e c h n i k G m b H
Nieder-Ohmener Str. 26
35325 Mücke, Germany
Centers of rotation on both base
plates for the installation of
cast-aluminum master clamps
Version January 2020