10.0 MAINTENANCE
IRN37–160K–OF & IRN50–200H–OF
http://air.irco.com
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10.3 MAINTENANCE PROCEDURES
CAUTION
Before beginning any work on the compressor, read and understand the safety instructions in this manual.
Open, lock and tag the main electrical disconnect and close the isolation valve on the compressor discharge.
Do not under any circumstances open any drain valve or remove components from the compressor until this
has been carried out. Note that pipework downstream of the check valve may still contain pressure that must
also be vented to atmosphere before beginning any work.
CAUTION
When using any form of liquid for cleaning, ensure that all electrical components are protected or covered
to prevent ingress of liquid.
WARNING
This compressor contains a variable frequency drive.
When it is switched off and the motor is stopped, the
internal capacitors store a potentially lethal high voltage. DO NOT REMOVE THE DRIVE COVER or attempt
any work on the drive unless trained. There are no user serviceable items behind the cover.
DANGER
This compressor contains a variable frequency drive.
When it is switched off and the motor is stopped, the
internal capacitors store a potentially lethal high voltage electric charge which gradually falls to zero over
time. After switching off the machine at its local isolator WAIT AT LEAST 15 MINUTES for the capacitors to
fully discharge before opening the power drive module doors.
WARNING
Use suitable equipment for lifting heavy items and ensure loose components are adequately supported to
eliminate risk of dropping
.
WARNING
The motor rotor contains a powerful magnetic field. This field can effect the operation of digital devices such
as watches, mobile phones etc. Assembly or handling of the rotor should not be attempted by personnel with
cardiac pacemakers, defibrillators or other implanted electronic medical device.
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.
Ensure that maintenance personnel are adequately
trained, competent and have read the Maintenance
Manuals.
Prior to attempting any maintenance work, ensure
that:–
S
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.
S
the machine cannot be started accidentally or
otherwise, by posting warning signs and/or fitting
appropriate anti–start devices.
S
all residual electrical power sources (mains and
battery) are isolated.
Prior to opening or removing panels or covers to
work
inside
a machine, ensure that:–
S
anyone entering the machine is aware of the reduced
level of protection and the additional hazards,
including hot surfaces and intermittently moving
parts.
S
the machine cannot be started accidentally or
otherwise, by posting warning signs and/or fitting
appropriate anti–start devices.
Prior to attempting any maintenance work on a
running
machine, ensure that:–
S
the work carried out is limited to only those tasks
which require the machine to run.
S
the work carried out with safety protection devices
disabled or removed is limited to only those tasks
which require the machine to be running with safety
protection devices disabled or removed.