Hadley 500 InstructionsREV F07/00146k
Contents
1. H00500 SERIES HEIGHT CONTROL VALVE INSTRUCTIONS BOLT TORQUE FILL 60 80 IN LB AIR SUPPLY OE EXHAUST LEVER HCV INSTALLATION NOTES 1 At full up or down suspension travel ee OPTIMAL LEVER ANGLE IS 45 MINIMUM LEVER ANGLE IS 30 2 Mount HCV parallel to frame rail 3 If NOT using the integral dump option dump pilot port vent must be left in place 4 If using integral dump option remove dump pilot port vent and connect directly to 3 way selector valve Ensure that selector system is vented to atmosphere at all times even when not being activated Note Dump pilot port system must not be plugged at any time as this may affect valve centering HCV INSTALLATION INSTRUCTIONS Caution Air lines are pressurized and may blow debris USE EYE PROTECTION 1 Disconnect and remove old valve 2 Attach the Hadley H00500 HCV to the same mounting bracket Or use the enclosed brackets as needed to mount the valve 3 Attach the proper length lever to achieve 30 minimum fill and exhaust angle see above notes Check for any interference or straight lining of the valve lever and linkage through the entire suspension travel 4 Reconnect the air lines to the HOOS500 HCV per the picture above Connect the dump pilot port to a normally closed control valve 5 Adjust the ride hei2. ght of the suspension utilizing the HO0500 HCV lever and the vehicle manufacturer s ride height recommendations Install centering dowel to insure the valve dead band 1s at ride height 6 Tighten all nuts 60 to 80 in lbs 7 Remove centering dowel LJ PROBLEM Air springs flat Air springs raise to full height but do not exhaust Air springs deflate when parked Suspension will not maintain proper height Hard ride Ride height unequal side to side for 2 valve system HCV TEST PROCEDURE POSSIBLE CAUSE Obstructed air line Insufficient air pressure to suspension Defective Pressure Protection Valve Defective HCV see test procedure Air leak in system Obstructed air line Defective HCV see test procedure Leak in air system check with soapy water Defective HCV see test procedure Check dump port for proper venting see installation notes 3 amp 4 Obstructed air line Defective HCV see test procedure Ride height out of adjustment readjust per vehicle service manual Check dump port for proper venting see installation notes 3 amp 4 Reset ride height on each side per installation instruction 5 1 With a minimum of 90 psi at the supply port rotate the lever up as indicated on the side of the valve 30 to 45 Air should begin to flow into the air springs within seconds 2 Rotate the lever to the neutral postion Aur flow should stop 3 Rotate the lever down 30 to 45 Air should beg
3. in to exhaust from the air springs within seconds REASONS TO REPLACE THE HCV HCV did not pass the test procedure Air leaks from the HCV HCV is damaged 4 Rotate the lever to the neutral position Air flow should stop 5 If valve fails to flow air or shut off as specified replace with a new one TYPICAL INSTALLATION ELECTRIC SOLENOID AND REVERSE DUMP OPTIONS AVAILABLE HADLEY PRODUCTS 2851 Prairie St SW Grandville MI 49418 Telephone 616 530 1717 Fax 616 530 3283 Call or write regarding other Hadley products Cab or Chassis HCV s Air Horns Mini Compressors etc FILENAME H14980 PM5 REV F 07 28 00
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