Dangers During Maintenance And Repairs - Gardner Denver L15 Original Operating Manual

4. Safety regulations

4.7 Dangers during maintenance and repairs

Danger
During maintenance and repairs, parts
that may be pressurized must be
removed. If you maintain the
compressor and have not been trained
by Gardner Denver, you will put yourself
and others at risk.
Incorrectly configured spare parts may
jeopardize safety, e.g., tear when
loaded.
Risk of electric shock.
The machine may start up
unexpectedly.
Risk of injury from pressurized or
moving parts.
During the course of maintenance and
repairs, parts can be damaged which
are important for safety.
16
Safety measure required
The compressor can only be maintained by specially trained technicians.
Contact your Gardner Denver agent.
Only persons with special knowledge and experience of hydraulics may work
on system elements, for example components under pressure.
Spare parts must meet the technical requirements laid down by the
manufacturer. This is always guaranteed when original spare parts are used.
Work on the electrical systems of the machine / installation may only be
carried out by a trained electrician in accordance with electrical regulations.
The system must be secured from being switched on. Seal off the main switch
and remove the key and/or attach a warning sign to the main switch.
L15RS-L22RS only: Danger of electric shock from loaded condensers!
Always first disconnect the system from the power supply and wait another
10 minutes before touching the electrical components. The power condensers
require this time in order to discharge!
Only carry out maintenance and repair work when the system is not in
operation and the power supply disconnected. Ensure that the power unit
cannot be switched on inadvertently. The system must be secured from being
switched on.
Seal off the main switch and remove the key and/or attach a warning sign to
the main switch.
Only carry out inspection, maintenance, and repair work when the screw com-
pressor system is at a standstill and is not under pressure. The system must
be secured from being switched on.
Before removing or opening pressurized components, positively isolate any
source of pressure and depressurize the entire system.
Never weld any pressure reservoir or change it in any way.
If work which produces heat, flames, or sparks has to be carried out on a
machine, the adjacent components have to be protected by means of non-
inflammable material.
Motor, air filter, electrical components, and regulating equipment have to
protected from the ingress of humidity, e.g., when cleaning the system by
means of a steam jet.
Under no circumstances must the sound-proofing material be removed or
modified.
Never use etching solvents which could attack the materials used.
Before cleaning the machine with water or steam jet (high-pressure cleaner)
or other cleaning agents, cover/mask all openings which have to be protected
from the ingress of water, steam or detergents for safety and/or functional
reasons, in particular electric motors and switch cabinets. After cleaning,
remove the covers/masking completely.
After cleaning, check all hydraulic oil lines for leaks, loose connections, chafe
marks and damage! Immediately remedy any defects found!