Gardner Denver L07, Original Operating And Service Manual

Page: 12 / 60

3. Safety regulations
10
Refrain from any working method which is doubtful in
terms of safety.
Never play around with compressed air!
Never aim compressed air at your skin or at other
persons!
Never use compressed air to clean your clothing.
When using compressed air to clean equipment take
the utmost care and always wear protective goggles.
The compressed air generated by these compressors
must never be used for breathing unless it has been
conditioned for those applications in line with the “safety
requirements for respiratory air”.
Never use the machine in an environment where
inflammable or poisonous vapour can be sucked in.
Never operate the system at pressures and
temperatures below or above the values indicated in
the technical data sheet.
The access panels, etc. have to be closed during
operation.
Check the machine/unit at least once per shift for visible
damage and faults! Report any changes (including
changes in the machine’s operating behaviour) to the
responsible department/person immediately. If
necessary, stop and lock the machine immediately!
In the case of malfunction, stop the machine/unit
immediately and lock it! Have any defects rectified
immediately!
Observe the start-up and stopping procedures and the
control displays according to the operating instructions.
Before starting up or setting the machine in motion,
ensure that nobody is at risk.
Do not cut off or remove extraction or venting facilities
while the machine is running.
3.5 Special work/maintenance
Carefulness
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 carried
out by skilled personnel only.
Brief the operating personnel prior to starting special
operations or maintenance work! Appoint a person to
supervise the activities!
Maintenance and repair work may only be carried out
under the supervision of a person who is qualified for
this work.
Oil losses result in a slippery floor. Therefore, always
clean the floor and the outside of the machine prior to
starting the maintenance work.
Checks, maintenance and repair work may only be
carried out with the screw compressor being at rest and
depressurized. Protective equipment to be removed for
this work, has to be refitted after completion of these
activities. Operation of the machine without protective
equipment is not permitted. When working on a running
screw compressor system, working clothes have to be
close-fitting.
If the machine/unit is completely shut down for
maintenance and repair work, it must be secured
against inadvertent restarting:

Lock the main command elements and remove the
key and/or

attach a warning sign to the main switch.
Always use the correct tools for maintenance and repair
work.
Never use inflammable solvents or carbon tetrachloride
to clean parts. Take precautions against poisonous
vapours from cleaning agents.
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 shutdown
procedures set out in the operating instructions and the
information on maintenance work.
Ensure that the maintenance area is adequately
secured.
To lower 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 correct lifting gear and
only utilize suspension systems with adequate lifting
capacity. Never work or stand under suspended loads!
During maintenance and when carrying out repair work,
cleanliness is very important. Avoid the ingress of dirt
by covering parts and free openings with a clean cloth,
paper or adhesive tape.
After the completion of each repair, check that tooling
or loose parts have not been left in the or on top of the
machine, drive motor or drive equipment and ensure
that no cloth has been left inside these units.
Be careful when the screw compressor system is in
operation.
Maintenance/rectification of faults
The employer has to inform the employee of the
dangers possibly arising during the repair and
maintenance of the machine/unit as well as on how to
avoid them; the employee has to observe all measures
for safety at work. Safety equipment for the prevention
or elimination of danger has to be maintained regularly
and functionally checked at least once a year. Faults
observed have to be immediately rectified and/or
reported to the responsible person.