Service; Inspection Of Protective And Safety Devices - Gardner Denver L Series Original User And Service Manual

Water-Cooled compressors
When operating water-cooled screw compressor units please observe the following points.

In case of leakage a part of the oil in oil/water coolers may penetrate into the cooling water circuit.
Cooling water must not be discharged into public sewage systems in an uncontrolled manner.
Exclude uncontrolled overflow of oil from separating basins into public sewage systems. Carefully
comply with the sewage regulations and guidelines.

Carefully perform maintenance and repairs. Removed tube bundles must be checked for damage
before reinstallation (and replaced even in case of minor damage). When assembling always use
new seals.
8.2

Service

For any spare parts needed, the local Gardner Denver branch or representative retailer is available.
The local Gardner Denver subsidiary or the responsible dealer is available for any spare parts
requirements.
It is important to provide the model name and serial number of the compressor in all communications.
Order spare parts on the basis of the separately provided spare parts list.
8.3

Inspection of Protective and Safety Devices

Protective covers and enclosure panels
Ensure that all protective covers and enclosures of the compressor are installed correctly.

Protective cover for cooling air fans

Protective cover of the coupling between the drive and compressor

Compressor housing; here especially the openings (doors)
Pressure Relief Valve must be in perfect condition. For example, it must not be blocked by dirt or paint.
Emergency Stop Pushbutton / Emergency Stop Function
The switching function of the contacts can be checked by an electrician.
The emergency stop function may be actuated only in dangerous situations. Otherwise increased
wear, up to and including damage to the compressor, can be expected.
Functional check of the Pressure Relief Valve
The functional checking of the pressure relief valve must be carried out by a safety specialist. The result of the
functional check must be documented.
1.
Lockout and Tagout.
2.
Open the enclosure, create access.
3.
Press start button < I > to allow the compressor to run under load.
4.
Rotate the valve cap counter-clockwise until a clear blow-off is heard.
5.
Turn the valve cap clockwise up to the stop. The valve must shut fully again.
Hearing damage
Increased sound pressure level when operated without noise-reducing enclosure.

Wear hearing protection.
NOTICE
NOTICE
NOTICE
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