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Using the FOX High Pressure Pump

Figure 1: FOX High Pressure Pump

CAUTION: Do not cycle your fork or rear shock with the FOX HP pump attached, as you will risk damaging your pump.

To change the air pressure in your fork:

Remove the aircap (shown below) from the top of the right fork leg.
NOTE: To remove the aircap on a TALAS fork more easily, hold the lever with one hand while unthreading the aircap with the other.
Connect the pump by threading the chuck onto the Schrader valve until the pump gauge registers pressure. This takes about 6 turns. If the fork has no air pressure, the gauge will not register. Be careful not over-tighten the chuck, as it can damage the pump chuck seal.
Increase the pressure by stroking the pump a few times. Pressure should increase slowly. If the pressure increases rapidly, check that the pump is properly connected to the Schrader valve.
Decrease the pressure by depressing the black bleed valve. Push the bleed valve in halfway and hold to allow continuous pressure release. Depress the bleed valve completely to release pressure incrementally (micro adjust).
Disconnect the pump by unthreading the chuck. The sound of air loss comes from the pump hose, not the fork.
Install the aircap, and go ride.

Figure 2: Aircap on a 32 or 36 mm TALAS fork
Figure 3: Aircap on a 32 mm fork

To change the air pressure in your shock:

Remove the Schrader air valve cap from the shock.
Thread the pump’s valve chuck onto the shock’s air valve until pressure registers on the pump gauge. This takes approximately 6 turns. Do not over-tighten the pump on the air valve as this will damage the pump chuck seal.
Stroke the pump a few cycles. The pressure should increase slowly. If pressure increases rapidly check to make sure the pump is properly fitted and tightened onto the shock air valve.
NOTE: If the shock has no air pressure, the gauge will read zero.
Pump to the desired pressure setting. Air pressure range is from 50 to 300 psi for the main air chamber on air shocks. DO NOT EXCEED 300 PSI IN THE MAIN AIR CHAMBER.
You can decrease pressure by pushing the black bleed valve. Pushing the bleed valve half way down and holding it there will allow pressure to escape from the pump and shock. Pushing the bleed valve all the way down and releasing it will allow only a small amount of pressure to escape (micro adjust). When unthreading the pump from the air valve fitting, the sound of the air loss is from the pump hose, not from the shock.
NOTE: When you attach the pump to the shock, the hose will need to fill with air. This may result in a pressure reading that can be lower by as much as 10 to 20 psi.
Replace the Schrader air valve cap.