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Maintenance and repair
Fundamental safety instructions
Special work in conjunction with utilization of the machine
and maintenance and repairs during operation; disposal
of parts and consumables
Observe the adjusting, maintenance and inspection
activities and intervals set out in the operating instructions,
including information on the replacement of parts and
equipment. These activities may be executed by skilled
personnel only.
Brief operating personnel before beginning special
operations and maintenance work, and appoint a person
to supervise the activities.
In any work concerning the operation, conversion or
adjustment of the machine and its safety-oriented devices
or any work related to maintenance, inspection and repair,
always observe the start-up and shut-down procedures
set out in the operating instructions and the information
on maintenance work.
Ensure that the maintenance area is adequately secured.
If the machine is completely shut down for maintenance
and repair work, it must be secured against inadvertent
starting by:
-locking the principal control elements and removing the
ignition key and
-attaching a warning sign to the main switch
Carry out maintenance and repair work only if the machine
is positioned on stable and level ground and has been
secured against inadvertent movement and buckling.
To avoid the risk of accidents, individual parts and large
assemblies being moved for replacement purposes should
be carefully attached to lifting tackle and secured. Use
only suitable and technically perfect lifting gear and
suspension systems with adequate lifting capacity. Never
work or stand under suspended loads.
The fastening of loads and the instructing of crane
operators should be entrusted to experienced persons only.
The marshaller giving the instructions must be within sight
or sound of the operator.
For carrying out overhead assembly work always use
specially designed or otherwise safety-oriented ladders
and working platforms. Never use machine parts as a
climbing aid. Wear a safety harness when carrying out
maintenance work at greater heights.
Keep all handles, steps, handrails, platforms, landings and
ladders free from dirt, snow and ice.
Clean the machine, especially connections and threaded
unions, of any traces of oil, fuel or preservatives before
carrying out maintenance/repair. Never use aggressive
detergents. Use lint-free cleaning rags.
Before cleaning the machine with water, steam jet (high-
pressure cleaning) or detergents, cover or tape up all
openings which - for safety and functional reasons - must
be protected against water, steam or detergent penetration.
Special care must be taken with electric motors and
switchgear cabinets.
Ensure during cleaning of the machine that the temperature
sensors of the fire-warning and fire-fighting systems do
not come into contact with hot cleaning agents as this
might activate the fire-fighting system.
After cleaning, remove all covers and tapes applied for
that purpose.
After cleaning, examine all fuel, lubricant, and hydraulic
fluid lines for leaks, loose connections, chafe marks and
damage. Any defects found must be rectified without delay.
Always tighten any screwed connections that have been
loosened during maintenance and repair.
Any safety devices removed for set-up, maintenance or
repair purposes must be refitted and checked immediately
upon completion of the maintenance and repair work.
Ensure that all consumables and replaced parts are
disposed of safely and with minimum environmental impact.
The electrical equipment of machines is to be inspected
and checked at regular intervals. Defects such as loose
connections or scorched cables must be rectified
immediately.
Before starting work on high-voltage assemblies and after
cutting out the power supply, the feeder cable must be
grounded
Operate internal combustion engines and fueloperated
heating systems only on adequately ventilated premises.
Before starting the machine on enclosed premises, make
sure that there is sufficient ventilation.
Observe the regulations in force at the respective site.
Carry out welding, flame-cutting and grinding work on the
machine only if this has been expressly authorized, as there
may be a risk of explosion and fire.
Before carrying out welding, flame-cutting and grinding
operations, clean the machine/plant and its surroundings
from dust and other inflammable substances and make sure
that the premises are adequately ventilated (risk of
explosion).
Check all lines, hoses and screwed connections regularly
for leaks and obvious damage. Repair damage immediately.
Splashed oil may cause injury and fire.
During operation, all sound baffles must be closed.
Be careful when handling hot consumables (risk of burning
or scalding).
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