Lukas LZR 12-700 EN - Manual (Page 9)

9
8.3 Principles on rescue rams
8.3.1 LZR../... und LTR./..
Important!
When applaying the tool make sure that all tips of both the body - mounted and the piston - mounted
claw have a firm and safe grip with the load so as to avoid any point load. Lifted loads have to
be supported by suitable cribbings or other packings.
8.3.2 Use of extensions According to the regulations of DIN 14751 T3,
and DIN EN 13204 (draft 6.98)
a use of extensions is not allowed.
Where this instruction does not apply,
the extension 250 mm may be used only with
the LZR 12/300EN and as shown in the drawing.
Important!
Watch the rescue cylinder and the extension closely during the operation.
8.3.3 LZR 12/550 PS
Preparation of the wall (penetration)
To start the peeling function a hole of 60 x 60 mm
has to be made. The cylinder with penetration tip has
to be adjusted to a counterpart and the ram hydraulically
extended to create a hole in the wall.
Attention:
No person is allowed to stand behind the wall while
creating the hole in the wall.
Peeling operation
The rescue ram is placed into the hole by using the counterpart of the
peeling tip as starting point. By extending the rescue ram with the
peeling tip hydraulically an opening as far as the stroke of the cylinder
can be made. Peeling operation see picture on the left. To create a
"man hole" the peeling operation has to be made four times. The di-
rection for each peeling operation has to be changed by 90° to create
a retangular opening.
8.3.4 Warnings
Before any operation of the rescue ram unit make sure that the extension of the piston rods with
claws does not constitue a risk to persons (involved or uninvolved) or that the piston movement
or cut-off parts jerking away cannot damage property.
Important!
The claws must be jammed tight even in case of long strokes. Avoid slipping through proper
application!
Do not use the piston for carrying the device!
Use of stroke extension pieces is not allowed! (exept LZR 12/300EN)