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Proper Compressor Oil Level (Daily)
Review safety section prior to performing any compressor service. Checking and maintaining the proper
compressor oil level will extend the life of the system and minimize down time.
1. Turn the vehicle off and ensure the system is relieved of all air pressure.
2. Locate the sightglass on the side of the sump tank. Make sure the vehicle is on level ground. The
oil level should be midway in the sightglass but not above the specified line. Visually check oil
condition. Dirty oil or oil contaminated with moisture should be completely drained and replaced.
3. If oil needs to be added to the system, remove the oil fill cap on the side of the sump tank.
4. Pour oil in and fill until the desired level is reached on the sightglass.
5. Reinstall and secure the oil fill cap.
Draining Moisture from the System (25 hours or monthly)
Review safety section prior to performing any compressor service. When the compressor system is running it brings in
ambient air to the system to compress. Along with the air it also brings in the humidity. If the system is not running at the
proper temperature or is not permitted to run long enough to reach proper temperature, the water will not vaporize and
pass down stream as it should. The water will remain in the system and mix with the compressor oil. When using Dexron
III, the normally bright red oil begins to turn pink when there is too much moisture in the system. This moisture will need
to be drained to ensure proper lubrication.
1. Turn off the vehicle and let the vehicle sit for 24 hours to separate the oil from the water in the sump tank.
Water is heavier than oil and will settle to the bottom.
2. Locate the drain plug in the tee on the bottom of the sump tank.
3. Slowly loosen the drain plug until water begins to drain from the sump tank. Catch fluid waste in a drain pan.
4. Drain water and heavy oil/water mixture from sump tank until you start to see solid oil coming out and then
retighten the drain plug. Dispose of drained fluid properly.
5. Check the oil level and, if necessary, refill to proper level.
The oil fill cap supplied with the unit is specially designed for this system and
cannot be replaced with a standard cap.
It is important that the compressor oil be of a recommended type and that
this oil as well as the coalescer elements be inspected and replaced as
stated in this manual. The combination of a coalescer element loaded with
dirt and oxidized oil products, together with increased air velocity as a
result of this clogged condition, may produce a critical point while the
machine is in operation where ignition can take place and could cause a fire
in the system. Failure to comply with this will cause damage to property
and serious bodily harm or even death.
37
Maintenance
309743
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