Liebherr LHM 420 Manuel d'utilisateur télécharger pdf (Page 20)

Winch room – axial piston motors and rope drum Middle section – generator, slewing gears and access stairs to tower cab

Slewing Platform

The slewing platform is designed to house the diesel-hydraulic power pack, the winches,

the counterweight, the slewing gears and the electric control cabinet.

Machinery House

The front part of the slewing platform contains the

diesel-hydraulic power pack. This machinery house is

sound insulated and fully protected against any kind of

corrosion using Glass-Fibre Reinforced Plastic (GFRP).

Winch Frame

The winches are located within the rear part of the slew-

ing platform. Various winches are available according to

crane variants and application.

Middle Section

The middle part of the slewing platform accommodates

the base section of the tower, the slewing gears, the

generator and access stairs to the tower cab.

A Liebherr triple row roller bearing connects the slew-

ing platform with the undercarriage allowing for unlim-

ited rotation in both directions. Slewing gear units are

placed around the slew-ring bearing according to crane

variants and application. Due to the round tower design

the load is already distributed over 360 degrees when

it arrives at the slew-ring resulting in longer life time of

components as well as the steel structure.

s¬ -AXIMUM¬SAFETY¬AND¬RELIABILITY¬WITH¬

minimum components

s¬ !LL¬COMPONENTS¬ARE¬STANDARDISED¬AND¬UNIFORM¬

throughout the LHM Series which reduces repair costs

s¬ &IRST¬CLASS¬AND¬PRACTICALLY¬MAINTENANCEFREE¬HYDRAULIC¬

components for enormous cost savings and

long-term endurance

s¬ /PTIMAL¬ACCESSIBILITY¬TO¬ALL¬COMPONENTS¬AND¬SIMPLIlED¬

maintenance

s¬ 3IMPLE¬AND¬EASY¬TRAINING¬OF¬PERSONNEL

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Liebherr LHM 420 Manuel d'utilisateur Page 20