13-25-600 Page 56
NOTICE
A sudden drop of zero pressure differential or sudden heavy oil carryover may
indicate a ruptured element.
Inspection
- After removal of separator element, shine a light inside the element to reveal areas of heavy
dirt or varnish deposits or breaks (ruptures) in element media.
Oil Separator for Inspection or Replacement.
Be certain the unit is off and all system pressure is relieved.
1. Disconnect, lockout and tagout the power supply to the starter.
2. Remove the spin-on element.
3. Clean the gasket seating surface of the head.
4. Inspect and/or replace the separator as necessary. Before reassembly, coat the separator element
gasket with the same lubricant used in the unit.
5. Screw on until gasket makes contact. Hand tighten 1/3 to 1/2 turn extra.
6. Run the unit and check for leaks.
COMPRESSOR OIL SYSTEM CHECK
- The following readings are based on ambient temperature of
80
°
F (27
°
C) with the system in good condition. The compressor should be at operating temperature at
the time of the checks. One-half hour of loaded operation is usually sufficient to reach level-out operating
temperatures.
Air and Oil Discharge Temperature
- 170
°
F to 200
°
F (77
°
C to 93
°
C) - Read temperature on AirSmart
controller.
Compressor Oil Inlet Temperature
- 165
°
F to 175
°
F (74
°
C to 79
°
C)
– Use infrared heat gun to check.
Oil Inlet Pressure
- Check at the fitting in the line near the compressor oil inlet. With air receiver
pressure at 100 psi (6.9 bar), oil inlet pressure should be 65-75 psig (4.5 to 5.2 bar).
Oil Cooler Oil Pressure Differential (Air-Cooled Radiator)
- Check differential across the oil system by
measuring oil inlet pressure as described above.
Oil Cooler Temperature Differential (Air-Cooled Radiator)
- The oil temperature differential depends
on the temperature of the air at the oil cooler fan and cleanliness of the core faces. As ambient
temperatures and core restrictions increase, the oil cooler outlet temperature will increase. The oil inlet
temperature is approximately the same as the air discharge temperature - see AirSmart controller. Use a
infrared heat gun to check oil filter outlet.
Summary of Contents for AirSmart Controller APEX5-15A
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Page 27: ...13 25 600 Page 26 Figure 4 1 CONTROL SCHEMATIC 300ELA797 B Ref Drawing...
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