First Degree Fitness Apollo AR Owner's Manual page 9

Note on Filling the A/R Tank:
Important: Please Read Before Filling Tank:
Set adjuster knob to "MAX"
prior to filling
Caution:
When filling the A/R tank, the adjuster handle must be set to the "MAX" position as shown
to allow accurate fill levels.
Using any other setting other than "MAX" will result in inaccurate fill levels and in extreme cas-
es could cause leakage to occur during use or when stored in the standing position.
DO NOT overfill the tank beyond the maximum indicated level. Refer to the Tank Level Decal
on the lower side of the tank
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