MAINTENANCE 33
Maintenance Schedule
PERIOD | MAINTENANCE |
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Each 24 hours | Check the coolant level and replenish if |
operation | necessary. |
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Visual check of | Report immediately, contact Ingersoll Rand |
machine for any | authorized distributor for assistance if in |
leaks, dust build up | doubt |
or unusual noise or |
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vibration |
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When compressor | Drain air receiver of condensate, or check |
is receiver mounted | that automatic drain is operating |
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Visual check | Blow clean if needed |
condition of |
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package pre −lter |
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First 150 hours | Change the coolant lter. |
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Each month or 100 | Remove and clean package pre −lter, |
hours | replace if needed |
| Check the cooler(s) for build up of foreign |
| matter. Clean if necessary by blowing out |
| with air or by pressure washing. |
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Every 4 months | CONDENSER |
| Remove any dust from the condenser ns. |
| COMPRESSOR |
| Make sure compressor power consumption |
| complies with data plate specications. |
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ROUTINE MAINTENANCE
This section refers to the various components which require periodic maintenance and replacement.
. It should be noted that the intervals between service requirement may be signicantly reduced as a consequence of poor operating environment. This would include ef fects of atmospheric contamination and extremes of temperature.
The SERVICE/MAINTENANCE CHART 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.
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.
CAUTION: Before beginning any work on the compressor, open, lock and tag the main electrical disconnect and close the isolation valve on the compressor discharge. Vent pressure from the unit by slowly unscrewing the coolant ll cap one turn. Unscrewing the ll cap opens a vent hole, drilled in the cap, allowing pressure to release to atmosphere. Do not remove the ll cap until all pressure has vented from the unit. Also vent piping by slightly opening the drain valve. When opening the drain valve or the coolant ll cap, stand clear of the valve discharge and wear appropriate eye protection.
Ensure that maintenance personnel are properly 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 oper ation.
MAINTENANCE
Check the operation of the high temperature protection switch (109 
C).
Change the coolant lter.
Check scavenge orice for blockage, clean if required.
Replace elements in IRGP and IRHE lters.
Change the separator cartridge.
Check motors w/grease ttings - grease bearings per motor data plate.
Change the Air Filter element.
Take coolant sample for uid analysis. Change the package pre −lter.
CONDENSATE DRAINS
Completely disassemble the drains and clean all their components.
Replace the Ultra Coolant at whichever interval occurs rst.
Check and replace all items included within 2000 hour service
Replace sealed bearing without grease ttings on motors.
Strip, clean and regrease or replace motor bearings on motors with grease ttings. Fit replacement electrical contactor tips.
. the machine cannot be started accidentally or otherwise.
. 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: − |
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. anyone entering the machine is aware of the reduced level of protection and the additional hazards, including hot surfaces and intermittentlymoving parts.
. the machine cannot be started accidentally or otherwise. |
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Prior to attempting any maintenance work on a | running |
machine, ensure that: − |
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DANGER
Only properly trained and competent persons should undertake any maintenance tasks with the compressor running or with electrical power connected.
. the work carried out is limited to only those tasks which require the machine to run.
. 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.
. all hazards present are known (e.g. pressurised components, electrically live components, removed panels, covers and guards, extreme temperatures, inow and outow of air, intermittently moving parts, safety valve discharge etc.).
. appropriate personal protective equipment is worn.
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