Graco PR70 Manual page 49

Accumulators
5. Once the accumulator is full, feel free to turn
the accumulator's pressure back up and press
the start button.
The air pressure to the accumulator is
regulated to 30 psi max, but it's recommended
that you try some lower pressures to start out
and then set the pressure to the LOWEST
possible setting to adequately run the
accumulator
312394B
Figure 63: Starting the Accumulator
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