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How do I fix my CO2 regulator? Its leaking, and the pressure changes on its own.

It sounds like you need to rebuild your regulator, which is very simple - the parts come in a small kit. To install the rebuild kit you'll need to disassemble the regulator. Changing out the interior requires the use of a vise clamp to hold the regulator down and in place, and a monkey wrench to remove the bonnet. The bonnet or outer casing needs to be tightened down to approximately 75 foot/lbs when reapplied. This is best accomplished with a torque wrench. If you cannot get the regulator to register over forty PSI after , the rebuilding and tightening it, an additional 1/4 turn is recommended. The internal parts should be tightened down just past finger tight with a 7/8 socket wrench. You'll need to remove the low pressure gauge and the check valve to properly insert the regulator into the vise. Remove the pressure adjustment screw. Remove the high pressure gauge and check valve. Place the regulator in the vise. Unscrew the bonnet using a crescent or monkey wrench. Remove the metal disk, spring, plastic disk, and diaphragm. Unscrew the internal wearings with a 7/8 in socket wrench. Please save and note the order in which you've removed the parts, and reassemble the regulator accordingly with the parts from the rebuild kit. Please un-thread the pressure screw before disassembling the regulator and when re-threading it, be very careful to not cross thread it as it will make your regulator useless.

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