Gardner Denver APEXVS7-11A, Руководство по эксплуатации и обслуживанию

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13-25-603 Page 53
Air/oil under pressure will cause severe personal injury or death. Shut down
compressor, relieve system of all pressure, disconnect, lockout and tagout
power supply to the starter before removing valves, caps, plugs, fittings, bolts
and filters.
Compressor, air/oil reservoir, separation chamber and all piping and tubing
may be at high temperature during and after operation.
1. Stop the unit and be sure no air pressure is in the oil reservoir, disconnect, lockout and tagout power
supply to the starter.
2. Remove the spin-on element.
3. Clean the gasket face of the filter body.
4. Coat the new element gasket with clean lubricant used in the unit.
5. Screw the new element on the filter body and tighten by hand. Tighten 1/2 turn more after gasket
makes contact. DO NOT OVERTIGHTEN ELEMENT.
6. Run the unit and check for leaks.
COMPRESSOR OIL COOLER - The cooler fan is mounted on the compressor motor shaft; air is
exhausted through the oil cooler and away from the unit. Do not obstruct air flow to and from the oil
cooler. Allow a minimum of two (2) feet (.6M) clearance around the cooler. Keep both faces of the cooler
core clean for efficient cooling of the compressor oil.
THERMAL CONTROL (THERMOSTATIC MIXING) VALVE is installed in the system as shown in Figure
5-1, page 44. This valve is used to control the temperature of the oil. On start-up with unit cold, the
element is open to bypass, allowing oil to pass directly from the reservoir to compressor during warm-up.
As oil warms, the element gradually closes to the bypass allowing more of the oil from the cooler to mix
with oil from the bypass.
After the unit is warmed up, the mixing valve maintains oil injection temperature into the compressor at a
minimum of 170
°
F (77
°
C). This system provides proper compressor warm-up and prevents moisture
contamination of the oil.