6.ly,7.PREPARATION FOR USEIf the air compressor will not be used immediate-omit steps d and e.a.b.c.d.e.f.Connect air hose assembly (figure 1). toglobe valv (15 fig.8) and connect inflatorgage assem. (fig. 1) to air hose assembly.Close globe valve assembly by rotating fullyclockwise.Add oil to crankcase according to lubricationinstructions (paragraph 9).Turn on electrical service and place toggleswitch (2, fig.6) on magnetic motor starterbox to on (up) position.Allow equipment to operate until operatingpressure is indicated on pressure gage ( 1 3,fig.18), at which time the electric motor willstop. This normally takes up to 21 minutes.Place toggle switch on magnetic motor starterbox to off-(down) position. -OPERATIONa.To start up air compressor, proceed as fol-lows :INTERVALDailyWeekly3 Months12 Months1.2.Place toggle switch (2, fig.6) on mag -netic motor starter box to on (up) position.Unless operating pressure is already indi-cated on pressure gage,equipmentmay operate for up to 21 minutes to buildup pressure.When operating pressure is reached, openglobe valve assembly by rotating fullycounterclockwise.b. To shut down air compressor for a prolongedperiod, proceed as follows:1. Place toggle switch on magnetic motorstarter box to off (down) position.2. Disconnect air hose assembly and allowcompressed air to bleed off.3. Close globe valve assembly by rotatingfully clockwise.8. PREVENTIVE MAINTENANCEThe following table contains the schedule of pre-ventive maintenance under normal operating condi-tions. Under high salt, sand, or dust conditions, cleanoverall equipment and muffler assemblies more fre-quently.TABLE 2. PREVENTIVE MAINTENANCE SCHEDULEMAINTENANCE REQUIRED1.2.3.1.2.3.1.2.3.1.Check oil level at oil level gage (17, fig.9). If necessary, add oil (paragraph9).Drain moisture from air receiver by opening drain cock (20, fig.8).Turn off air compressor at end of day’s operation and close globe valve assembly.Turn off air compressor.Clean dust and foreign matter from cylinder head,motor, fan blade, air lines, inter-cooler, and air receiver. Pay particular atten-tion to baffles.Turn off air compressor. Remove muffler assemblies and clean them with gasolineor any commercial solvent other than carbon tetrachloride.Check V belts for tightness.Belts should be tight enough to prevent slipping. Ifnecessary, adjust belt tension to allow approximately 3/8 inch depression (para-graph 14).Change oil (paragraph 9).Use soap solution and brush to check entire equipment for air leakage aroundfittings, connections, and gaskets.Tighten all nuts and cap screws.Check and clean compressor valves (paragraphs 17 and 28). Replace springs,discs, and seats when worn or damaged.3
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