Protective devices for crawler excavators – Liebherr L 556 User Manual
Page 20
20 // Quarrying
Protective devices
for crawler excavators
Operators can choose between a piston rod guard for the
cylinders, bottom boom protection for the stick or monoblock,
wear plates on the undercarriage and many other individual
measures for protecting both man and machine.
1. Piston rod guard
•
Simultaneously moving metal covers protect the chrome-plated
piston rods against damage.
•
Available for bucket cylinders (all machine types), hoist cylinderson
R 956 to R 980 SME, crowd cylinders for front shovel machines
from R 956 to R 9 80 SME.
2. Hoist cylinder hose protection
•
Protection for hydraulic lines and line-break protection
for hoist cylinders.
•
Optional for R 936 to R 950 SME.
3. Bottom boom protection for stick and monoblock
•
Prevents damage to the stick and the monoblock.
•
Protects the underside of the stick (bottom boom) and/or the
monoblock with a solid metal cover.
•
Especially suitable for working under hard conditions.
•
Stick: available for R 936 to R 980 SME.
•
Monoblock: available for excavators R 918 to R 980, R 936
to R 960 SME.
4. Protection for slewing mechanism and
lubrication lines
•
Protects the slewing mechanism and the lubrication lines in this
area against damage, especially during wrecking ball operations.
•
Covers the slewing mechanism and the lubrication lines.
•
Available for excavators R 950 to R 980.
5. Protective grille for driver’s cab
•
Protective grille in front (FGPS) and top (FOPS) area of the
driver’s cab protects against flying stones.
•
Available for all types of machines.
6. Armoured glass
•
Front and roof glass in the driver’s cab can be equipped
with impact-resistant armoured glass, offering additional
protection for the driver.
•
Available for all types of machines, standard for R 966.
7. Guard plate
•
Protects the undercarriage against damage and wear, especially
when working on loose piles of material and/or during wrecking
ball operations.
•
Available for R 950 SME to R 980 SME.
8. Travel drive guard and reinforcement kit for
transmission bearings
•
Reinforcement panels protect the outsides of the travel drive
and the transmission bearings on the inside of the longitudinal
members against damage (e. g., when working on piles of loose
material).
•
Available for excavators R 950 SME to R 980 SME.
Several excavator components at risk of damage caused by flying stones when working in the quarry,
especially when they are performing wrecking ball operations. Liebherr has developed special protective
measures for such operations to prolong the service life of the most important components.
Trends