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The Art of Regulator Balancing:
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Before I go into detail about how to balance the regulators, I will first explain what
you are trying to achieve.
If you read the previous section, “How a Freestyle Works,” you will know that the
marker uses high and low pressure air. The surface area which the high pressure
acts on is much smaller than the low pressure surface area on the bolt. Thus, it is
possible for low pressure to counteract the high pressure. However, there is a
balancing point. If you have the Low Pressure Regulator (LPR) too high, it can
activate the solenoid’s auto bleed function. If the LPR is too low in comparison to the
High Pressure Regulator (HPR), the bolt will stay in a forward position, venting
continuously.
Now that you understand the principle, I can teach you how to properly balance your
regulators.
1.
Place a swab or similar hard object into the feedneck.
2.
Turn the LPR all the way off (counter clockwise). The bolt should move
forward against the swab but should not vent air.
3.
With Non-HE bolt systems, turn the HPR to 280 PSI. With HE Bolt
systems, turn the HPR to 350.
4.
Slowly turn the LPR up (clockwise) until the bolt cocks back.
5.
Turn the LPR up another quarter turn. If the solenoid leaks, turn it to
midpoint between where it cocks and where it bleeds.
6.
Go to the chronograph. If you are high, that means you must lower the
HPR. If you are low, raise the HPR. Remember, you must readjust
the LPR with EVERY HPR change!
With a little bit of practice, you should be able to tune your regulators easily! After
you break in your bolt and regs, the PSI for the HPR may or may not be different.
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