Routine Maintenance; Checking Coolant Level; Adding Coolant; Draining Coolant - Ingersoll Rand R30 Manual De Instrucciones

121714.07.04

Routine Maintenance


This section refers to the various components which require periodic
maintenance and replacement.
Refer to safety information and maintenance procedures prior to carrying out
any of the maintenance in the following sections.

Checking Coolant Level


A coolant level sight glass is located on the side of the separator tank. While
the compressor is running under load, coolant should always be visible in
the sight glass. The normal position is half way. The compressor should be
running for at least 40 seconds for this check.
Stop the compressor, ensure the sump pressure is 0 psig and ensure the
coolant is still visible in the sight glass.

Adding Coolant


Run the compressor for a minimum of 40 seconds. The coolant level should
be visible in the sight glass. If not:
1. Stop the compressor.
2. Isolate the compressor from the external air system.
3. Press the emergency stop to vent the separator tank and airend.
Fixed speed compressors can take more than two minutes to fully
de-pressurize once stopped.
4. Slowly unscrew the coolant fill plug to verify all pressure has been
released.
5. Add coolant.
6. Replace the coolant fill plug and restart the compressor.
7. Recheck the coolant level.
8. Repeat the above steps until the coolant level is visible in the sight
glass with the compressor both running and stopped.
Do not add coolant through the intake of the compressor, as this can
result in overfilling, saturation of the separator filter element, and
coolant carry-over downstream .

Draining Coolant


It is better to drain the coolant immediately after the compressor has been
operating as the coolant will drain faster and any contaminant will still be in
suspension.
See Figure 1.
1. Place the straight end of the drain hose in a suitable container.
Install the other end of the drain hose in the drain valve. The
coolant flows through the drain hose automatically.
2. After drainage, remove the hose and close the valve.
On air cooled compressors, you may also drain coolant from the
coolant cooler by removing the plug .
You should also drain additional coolant from the airend by removing
the plug in the airend discharge elbow .
80447170 Rev C
NOTICE
NOTICE
Figure 1: Coolant Drain
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3. Dispose of waste coolant in accordance with local and
governmental regulations.
Shorter coolant change intervals may be necessary if the compressor
is operated in adverse conditions .

Sampling Coolant for Analysis


1. Bring the compressor up to operating temperature.
2. Stop the compressor.
3. Isolate the compressor from the external air system.
4. Press the emergency stop to vent the separator tank and airend.
Fixed speed compressors can take more than two minutes to fully
de-pressurize once stopped.
5. Draw a sample from the separator tank port using a pump kit. DO
NOT draw a sample from the drain port or oil filter.
Use a new hose on the pump for each sample. Failure to do this can give false
readings.
See Figure 2.
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NOTICE
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