PDF Operating Manual Liebherr R 934 C Hydraulic Excavator - 3 MB
This is the official operating manual for the Liebherr R 934 C Hydraulic Excavator.
It provides operators with comprehensive instructions on the machine's controls, functions, and safety systems.
The manual also outlines essential daily and weekly maintenance tasks to keep the excavator in prime condition.
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en
Operating manual
Hydraulic excavator
R 934 C
from serial number 26 400
Document identification
ORIGINAL OPERATING MANUAL
Order number: 10070206
Edition: 12 / 2010
Valid for: R 934 C from serial number 26 400
Author: LFR - Technical documentation department
Product identification
Manufacturer: LIEBHERR France S.A.S.
Type: R 934 C
Type no.: 016 / 023 / 027 / 033 / 918 / 1088 / 1335 / 1337
Conformity: CE
Address
Liebherr France S.A.S.
2 avenue Joseph Rey
B.P 287 F - 68005 Colmar Cedex
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Operating manual Product description
Assembly - overview
1 Product description
1.1 Assembly - overview
This section comprises an overview of the machine and descriptions of the compo-
nents shown.
1.1.1 Machine with backhoe attachment
Fig. 1-1 Machine with backhoe attachment
100 Uppercarriage 310 Boom cylinder 340 Bucket
200 Undercarriage 320 Stiel 350 Bucket cylinder
300 Boom 330 Stiel cylinder
R 934 C / 10070206 1-1
MJFCIFSS
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--- Page 7 ---
Operating manual Safety instructions, Signs on the machine
Safety Instructions
– In case of a thunderstorm :
• lower the attachment to the ground and if possible anchor the digging tool into
the soil.
• leave the cab and move away from the machine before the storm breaks out.
Otherwise, you must stop the excavator, turn off the radio and keep inside the
closed cab until the end of the storm.
– Auxiliary control units can have various functions. Always check their functions
when starting up the machine.
– Stop the swinging motion of the uppercarriage when lowering the attachment into
a ditch without striking the attachment on the ditch walls.
– Inspect the machine for damage if the attachment has been swung into a wall or
any other obstacles.
– Applications in which the attachment is to be used to strike the material being ex-
tracted are not permitted, even when working in a longitudinal direction.
– Repeated strikes against an object leads to damage to the steel structures and
machine components.
– Please refer to your LIEBHERR dealer if special teeth for heavy-duty or special
applications are required.
– Do not attach too large bucket or bucket with side cutters or that are during oper-
ations with rocky material. This would prolong the work cycles and may lead to
damage to the bucket as well as further machine components.
– With the 2x45° offset articulation, the offset position may only be employed if the
working tool or the attachment does not touch the material.
– Operation of the offset articulation to drill into the material is not permitted.
– Do not lift the machine during operation. Should this happen, lower the machine
slowly back to the ground.
– Do not let the machine fall heavily on the ground and do not hold it back with the
hydraulics. This would damage the machine.
– During operation with the attachment it is forbidden to raise the machine with the
dozing blade (e.g. carving at the ceiling when tunnelling).
Safe use with a hydraulic hammer
– The hydraulic hammer must be selected with particular care. When using a hy-
draulic hammer not permitted by LIEBHERR, steel structures or the other ma-
chine components can become damaged.
– Before beginning breaking tasks, position the machine on firm and level ground.
– Use a hydraulic hammer designed exclusively for breaking stone, concrete and
other breakable materials.
– Only operate the hydraulic hammer in the longitudinal direction of the machine
and with the windshield closed or with a front protective grid.
– Ensure during hammer operation that no cylinder is entirely extended or retracted
and that the stick is not in the vertical position.
– In order to avoid damages to the machine, try not to break stone or concrete while
performing retraction and extension motions of the hydraulic hammer.
– Do not apply the hydraulic hammer uninterrupted for more than 15 secs. at a time
to the same place. Change the breaking point. Too long uninterrupted operation
of the hydraulic hammer leads to an unnecessary overheating of the hydraulic oil.
– Do not use the drop force of the hydraulic hammer to break stone or other mate-
rials. Do not move obstacles with the hydraulic hammer. Misuse of this nature
would damage both the hammer and the machine.
– Do not use the hydraulic hammer to lift objects
R 934 C / 10070206 2-9
MJFCIFSS
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Operating manual Safety instructions, Signs on the machine
Servicing the machine safely
– Inexpert assembly and handling of hydraulic accumulators can cause serious ac-