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Hersteller: Emerson Dateigröße: 3.49 mb Dateiname: 2006SSD_75_R3.pdf Unterrichtssprache:

19 2006SSD-75 R4 (10/10) Dual-Compressor Module Maintenance Oil level sight tube 4.3 Checking the Oil Level The proper oil level varies according to the Compressor Module’s operating speed. To check the oil level on the first-stage oil separator level gauge, use the following guidelines based on operating speed. NOTE The oil level indicated on the first-stage oil separator sight tube varies with inlet and discharge pressures as well as operating speed. Check the oil level when the compressor is running. 4.3.1 Oil Level Guidelines - Minimum Speed When operating the Compressor Module at minimum speed—2400 rpm, 40 Hz— check the oil level in the oil level sight tube, shown at right, then refer to the following suggested maintenance actions. If the oil level is: Take this action: • 1"– 3" from the bottom of the oil level gauge No action is required. • Lower than 1” from the bottom Add factory-supplied PAO oil to this level (see 4.5.1 - Topping Off the Oil Level on page 20). • Higher than 3” from the bottom Remove excess oil (see 4.5.2 - Changing the Oil on page 21). 4.3.2 Oil Level Guidelines - Maximum Speed When operating the Compressor Module at maximum speed—4800 rpm, 80 Hz— check the oil level in the oil level sight tube, shown at right, then refer to the following suggested maintenance actions. If the oil level is: Take this action: • 1"– 3" from the top of the oil level gauge No action is required. • Lower than 3” from the top Add factory-supplied PAO oil to this level (see 4.5.1 - Topping Off the Oil Level on page 20). • Higher than 1" from the top Remove excess oil (see 4.5.2 - Changing the Oil on page 21). 4.4 Oil Capacity and Type The factory oil charge of the SZO Compressor Module is 380 fluid ounces (11.25 liters). Use the special Poly-Alpha-Olefin (PAO) blend available from the Packager. Refer to Appendix A - Material Data Safety Sheet on page 30 for details. CAUTION The Compressor Module REQUIRES a special PAO blend available from your Packager. Do NOT substitute other types of oil. Using other types of oil will damage the equipment and void the warranty. 20 2006SSD-75 R4 (10/10) Dual-Compressor Module Maintenance RIGHT SIDE VIEW 4.5 Adding and Removing Oil Oil is drained from the system through the Schrader valves on the Compressor suction fittings, first-stage oil separator and oil cooler (see Figure 15 on page 21). 4.5.1 Topping Off the Oil Level See 4.4 - Oil Capacity and Type on page 19 before adding oil. Also refer to 4.2 - Maintenance Tools on page 18 for information about the tools used in this procedure. Note Adding oil through the Schrader valve on either compressor suction fitting permits adding the oil with the compressor running. Adding Oil 1. Turn the knob on the backseating control valve fully counterclockwise. 2. Remove the protective cap from the Schrader valve on either compressor suction fitting and connect the backseating control valve. 3. Connect one end of the oil transfer hose to the backseating control valve. 4. Connect the opposite end of the hose to the oil transfer pump. 5. Pour PAO oil into a clean container and attach the extension hose to the threaded neck of the container. 6. Turn the knob on the backseating control valve clockwise to open the Schrader valve and slowly open the oil transfer hose ball valve. Caution When pressure is applied to the oil pump, the handle may extend rapidly. 7. Move the pump handle slowly using long, slow, full strokes on the pump handle to transfer oil into the Compressor until the desired oil level is reached. One full pump stroke dispenses 1.6 oz. (47ml) of oil (see 4.3 - Checking the Oil Level on page 19). 8. Turn the knob on the backseating control valve counterclockwise to close the Schrader valve and remove the control valve. 9. Replace the protective cap on the Schrader valve. 10. Return the Compressor Package to service. 11. Check for leaks at all fittings that have been disturbed. 21 2006SSD-75 R4 (10/10) Dual-Compressor Module Maintenance 4.5.2 Changing the Oil These procedures describe how to drain oil from the system and to replace the oil after draining. Figure 15 Adding or Draining Oil Draining Oil Under normal operation, the Compressor and oil circuit remain under pressure when the Compressor is turned off. This pressure can be used to drain most of the oil. It is also possible to use the gas supply pressure to force oil out of the Compressor Module. In some cases it may necessary to pressurize the module with an inert gas to remove the oil. 1. Turn the knob on the backseating control valve fully counterclockwise. 2. Connect the backseating control valve to the Schrader valve near the bottom of the first-stage oil separator, shown in Figure 15. 3. Connect one end of the oil transfer hose to the backseating control valve. 4. Place the free end of the hose into a suitable container and turn the knob on the backseating control valve clockwise to open the Schrader valve and open the oil transfer hose ball valve. 5. Leave the va...

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