Hokuetsu AIRMAN PDS185S-6EZ1 Instruction Manual page 16

Cautions of service valve
Fully-close Fully-open
×
Half-open
2. Installation

Half-open of service valve could cause cracks of
valve seat and air leaks. Be sure to use as
full-close or full-open, not to use as half-open.
A150841
2-6