Liebherr LHM 420 - Manual (Page 22)

22
Slewing platform and outside located coolers
Electric switch compartment: CPU – Liebherr Litronic ® crane control system
Cooling and Ventilation System
The cooling system for the engine water and the engine
charge as well as the hydraulic oil cooler are situated
outside on top of the slewing platform (for working con-
ditions above 50°C). The cooling air flow is completely
conducted outside the machinery room: for such rea-
son it is not possible to contaminate the diesel engine
and other hydraulic components with dust particles.
In addition Liebherr technology is absolutely insuscepti-
ble to all sorts of dust and dirt due to the closed hydrau-
lic system and an electronic system which is military
proven and tested.
Electric Switch Compartment
Situated on the right side of the slewing platform is the
electric switch compartment, containing the in-house
designed Liebherr Litronic
® crane control system (VME-
CAN-Bus 2-line).
s¬ !VAILABILITY¬OF¬SPARE¬PARTS¬¬YEARS
s¬ !LL¬UPGRADES¬ARE¬DOWNWARD¬COMPATIBLE
s¬ %ASE¬OF¬MAINTENANCE¬n¬NO¬ADDITIONAL¬SOFTWARE¬
specialist required
s¬ 3UITABLE¬FOR¬CORROSIVE¬ENVIRONMENT¬SPECIAL¬COATING¬
of all cards, saltspray tested)
s¬ $ESIGNED¬AND¬TESTED¬FOR¬MARITIME¬ENVIRONMENT¬
(military standard)
s¬ Spacious arrangement for optimal service accessibility