Rock O Meter Instructions:

            The Rock o meter is a visual aid for testing low pressure regulators  (LPRs).  This device will provide a meter for psi, recharge rate, consistency and leaks.  If used correctly this unit will save you time money and shipping cost. Testing is fairly simple and straight forward.

Safety info:

300 psi  MAXIMUM input. A 250 psi bleed valve (included) is required to prevent gauge damage. A firm grip on the unit an absolute must to prevent bodily harm. Rapidly venting gas could launch the until to unwanted places. Safety glasses/goggles should be worn at all times, particles could be released during the vent procedure.

Seal testing:

1.      Leave the LPR attached to the marker and remove the low pressure hose at the barb.

2.      Back out the adjustment screw all of the way (skip this step if you have a Stock WGP LPR) This will disable the LPR and no air should vent when gassed up.

3.      Slide the Rock O Meter Hose over the first flange of the barb.

4.      Slowly gas up the marker and watch the gauge on the Rock O Meter. If you have disabled the LPR as in step #2 nothing should happen. If nothing happens; no gauge reading or gas venting, then most likely your LPR is OK.  If the gauge starts to slowly rise in pressure until the  meter maxes out or the bleed valve vents, then you have a high pressure seal leak. If the meter rapidly rises, the LPR is missing a part, a huge piece of crud is stuck in the valve, you have a stuck plunger, or the adjustment is set to high.

Recharge/Consistency/PSI Test: (working LPR only)

1. Install the Rock O meter hose onto the output of the LPR
2. Gas up the marker
3. The gauge should read  below 200 psi (100 psi optimum). If not, adjust accordingly.
4. Press the release button momentarily to vent some pressure.  The needle on the gauge should drop down a bit when venting.
5. Release the button and the gauge should snap back to the original psi reading. The high flow gauge included will recharge in milliseconds, so if it returns slowly you have a slow recharge rate or a restriction somewhere.

Ram Testing

1. Attach the hose to the non-charged barb and let it sit for a while. If the pressure climbs then the air is seeping past the ram plunger.

That’s It!