Standard Shock Absorbers - JHBennett.com

Air/Oil Tank DimensionsAOT-3 & AOT-6F (AOT-3)FILLPLUGAOT-81 1 /2 NPTTHIS END9.81(249mm)3/4-14 NPTAIR INLET3.38(85.7mm)8.00 O.D.(203mm)2 1 /2 NPTPORT W/PLUG(CLEAN OUT)SIGHT GAGECED DIA.GAIRINLET3.88(98.4mm)AOT-1.50(12.7mm)1/8-27 NPT1.75AIR INLET(44.5mm)SQ.1/8-27 NPT FILL PLUG10.00(254mm)18.00(457mm).50(12.7mm)15°3/4-14 NPT.41 (10.3mm) DIA. THRU4 MOUNTING HOLES1/8-27 NPTTO SHOCK ABSORBER6.00 (152mm)5.63 (143mm)4.56 (116mm)1.50 (38.1mm) DIA.5.00 (127mm)6.50(165mm)7.50(191mm).28 (7.14mm) DIA.(2 HOLES)4.75(121mm)HTO SHOCKABSORBERAI MTG. SLOTF (AOT-6)FILLPLUGMODEL A B C D E F G H IAOT-3inmm7.691956.251594.251083.5088.91.7544.51/2-14NPT1/4-18NPT1/2-14NPT.4110.3AOT-6in 13.16mm 3349.502416.311605.561412.7870.63/4-14NPT3/4-14NPT3/4-14NPT.6616.7EXTERNAL ACCUMULATOR CIRCUITSAir / Oil Systems provide a convenient way foradditional heat dissipation and extends the cycles perhour capability of a shock absorber. Air / Oil Systemsalso can be used to extend the functionality of a shockabsorber by delaying the piston rod return.Units requiring an external accumulator, or fluidreservoir, are normally installed in one of three systemconfigurations.Figure 1 is the simplest and is utilized purely for heatFig. 1ALDSFig. 2ALDFig. 3ALDdissipation. The oil has a positive circulation path to supply cool oil to the shock absorber. The air/oil tank may be eitherclosed, or open, and vented through a filter breather unit. Specify a spring or mechanical return shock absorber model with anexternal accumulator.Figure 2 provides a filtered, pressurized, positive cool oil circulation path. Specify an air or mechanical return shock absorbermodel with an external accumulator. Operating pressure 50 to 100 PSI or 3.3 to 6.6 Bar.Figure 3 uses a solenoid valve to return the shock absorbers piston rod to the extended position on demand. The system alsouses a filtered, pressurized, positive cool oil circulation path. Specify an air return shock absorber model with an externalaccumulator. Operating pressure 50 to 100 PSI or 3.3 to 6.6 Bar.INSTALLATION TIPS FOR AIR/OIL SYSTEMS1. Do not install Air/Oil Systems with any shock that has an internal accumulator.2. Make certain that all air return shocks are used with an Air/Oil tank.3. Install shocks with the ports facing up and the Air/Oil Tank elevated above the shocks.4. Check for proper size tank, especially when using one (1) tank with two (2) shocks.5. Check tank for proper oil level and correct bleeding – approximately half-full.6. Do not allow a shut-off valve to be installed between the tank and the shock.7. Fittings and line size should be equal to or greater than the shock connection port.8. On recirculating installations, make sure the check valves are properly installed.9. Make sure incoming air is filtered to remove all water and contaminants.47