Lukas R 430 - Manual (Page 19)

19
The R410 rescue ram may only be operated with the
LUKAS extension (length = 250mm). No other rescue
ram may be operated with an extension: furthermore,
operation is only permitted using the original LUKAS
extension. The extension is assembled from the right-
hand side as depicted.
7.3 Operating the star grip (cover: item 1)
Extend piston ( ):
Turn the star grip in a clockwise direction (in the direction of the
relevant symbol) and keep in this position.
Retract piston ( ):
Turn the star grip in an counterclockwise direction (in the direction of
the relevant symbol) and keep in this position.
“Dead-man” function:
Following release, the star grip automatically returns to the central
position, guaranteeing the full load-holding.
7.4 Use of extensions
Extension
Rescue Ram
WARNING / CAUTION!
Rescue rams with extensions are to be carefully monitored during their use. If
there are signs of a serious change to its behaviour, work is to be interrupted
immediately and, if necessary, even stopped altogether. After every use /
interruption to use, carefully control the cylinder and the extension for damage!
8.1 Rescue ram
Once work has been completed, the rescue rams are to be retracted so that just a few mm *)
protrude. This relieves the hydraulic and mechanical strain on the equipment.
REMARK:
Due to fl uctuations to the ambient temperature, the storage of rescue rams can
cause small lifting motions in the equipment. This effect is a physical reaction to
the expansion of the hydraulic fl uid enclosed in the piston and rod side. For this
reason, the storage room for rescue rams is to be designed such that there is up
to 30mm (1.18 in.) space to allow for a potential extension to the length.
8. Dismantling the equipment / deactivation following
operation
*) 1 mm = 0.04 in.