MAINTENANCE (cont.)FAN BLADESCLEAN EVERY SEASON OR AS NEEDED- Remove upper shell (See Air Intake Filter Figure 10).- Use M6 Allen wrench to loosen set screw which holds fanblade to motor shaft.- Slip fan blade off motor shaft.- Clean fan blade using soft cloth moistened with keroseneor solvent.- Dry fan blade thoroughly.- Reinstall fan blade to motor shaft.- Place fan blade hub flush with end of motor shaft.- Place set screw on flat of shaft.- Tighten screw firmly (40-50 inch-pounds/4.5-5.6 N-m).Reinstall upper shell.Figure 15 - Fan AssemblyMotorFlushFan BladeMotor ShaftSet Screw- Slightly loosen the pump body screws using a mediumscrew driver.- Position pump body to set rotor gap to .003’’~.004’’ at topdead center and retighten pump body screws.- Verify the gap using calipers, a micrometer or a dollar bill.- Reinstall the end pump cover.- Reinstall air output filter and lint filter.- Reinstall end filter cover and air pressure gauge.- Reinstall fan guard and upper shell.Figure 13 - Rotor GappingFigure 14 - Check Air leaks around Pump.Pump Body ScrewPump BodyRotorRotor Gap13IMPORTANT: The newly inserted rotor must be gappedproperly before you reinstall the end pump cover.PUMP SERVICING (cont.)●ROTOR GAPPING●AIR LINE (LEAKING)REPLACE IF SPLIT,CRACKED OR AS NEEDED.- Remove air line from air line fitting (See Figure 14) and fromnozzle adaptor.(See Nozzle, page 14)- Reinstall Air line to air line fitting and nozzle adaptor.●END FILTER COVER & GASKET(LEAKING)REPLACE IF SPLIT,CRACKED OR AS NEEDED.- Replace End filter cover.(See Air output filter,page 12)- Replace Air ouput filter.(See Air output filter,page 12)Air Line FittingAir LineAir LineAir Outfilter FilterGasketEnd Filter Cover