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Using the FOX High Pressure Pump BUY
Forks | Rear Shocks
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.
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