Routine Maintenance - Ingersoll-Rand 7/26E Operation & Maintenance Manual

Maintenance

Routine Maintenance

This section refers to the various components which require periodic maintenance and
replacement.
The "Maintenance Schedule" indicates the various components' descriptions and the
intervals when maintenance has to take place. Oil capacities, etc., can be found in the
"General Information" section of this manual.
For any specification or specific requirement on service or preventative maintenance for
the engine, refer to the Engine Manufacturer's Manual.
Compressed air can be dangerous if incorrectly handled. Before doing any work on the
unit, ensure that all pressure is vented from the system and that the machine cannot be
started accidentally.
If the automatic blowdown fails to operate, then pressure must be gradually relieved by
operating the manual blowdown valve. Suitable personal protective equipment should be
worn.
Ensure that maintenance personnel are adequately trained, competent and have read the
Maintenance Manuals.
Prior to attempting any maintenance work, ensure that:-
• all air pressure is fully discharged and isolated from the system. If the automatic
blowdown valve is used for this purpose, then allow enough time for it to complete
the operation.
• the discharge pipe/manifold area is depressurised by opening the discharge
valve, whilst keeping clear of any airflow from it.
MINIMUM PRESSURE VALVE - WHEN FITTED
NOTE: Pressure will always remain in the part of the system between
the minimum pressure valve and the discharge valve after operation of
the auto blowdown valve.
This pressure must be relieved by carefully:
a. Disconnecting any downstream equipment.
b. Opening the discharge valve to atmosphere.
(Use hearing protection if necessary).
• the machine cannot be started accidentally or otherwise, by posting warning
signs and/or fitting appropriate anti-start devices.
• all residual electrical power sources (mains and battery) are isolated.
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