Gardner Denver L Series Service Manual page 18

Danger
During the course of maintenance and
repairs, parts can be damaged which
are important for safety.
Modifications to the machine impair
safety.
Safety measure required
Never weld any pressure reservoir or modify it in any way.
If work which produces heat, flames, or sparks has to be carried out on a
machine, the adjacent components must be protected by means of
inflammable material.
Motor, air filter, electrical components, and regulating equipment must
protected from the ingress of humidity, e.g., when cleaning the system by
means of a steam jet.
Under no circumstances should 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 must 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 completing repair work, always check to see whether any tools, loose
parts or cloths have been left in or on the machine, driving engine or driving
equipment.
After the work has been completed, replace any protective devices that have
been removed. Operation without protective devices is not permissible.
Always re-tighten screwed connections which were loosened for maintenance
and repair work.
Machines performing rotating movements must be cycled several times in
order to ensure that there are no mechanical faults in the machine or the
drive member.
Before releasing the power unit for operation after maintenance or overhaul,
check that the operating pressures, temperatures and time settings are
correct and that the regulating and shutdown equipment function properly.
13-25-638 v03 Page 18