Kirby 37 appendix Correct assembly order of the one way valve

Seat

O-ring

O-ring Poppet

Body

Correct assembly order of the one way valve.

poppet and the poppet O-ring usually come out in the seat being followed by the spring.

The only functional part remaining in the valve body is a non-moving, pressed-in cage. The function of the cage is to prevent the poppet O-ring from blowing out of place during high flows. Do not remove the pressed in cage. This can only be done at the factory.

3)Inspect the body interior for foreign matter of any type and clean, if necessary. Clean in accordance with the cleaning instructions in Chapter 6. If corrosion is present, clean using the acidic solution as outlined in Chapter 6.

4)Inspect the seat, wiper, O-ring, poppet O-ring and poppet for wear, replace if necessary. Be sure each part is clean and all components are lightly lubricated with the appropriate lubricant. A repair kit is available for replacement parts. (Part #525-330)

5)Be careful to wipe the poppet and poppet O-ring thoroughly, removing nearly all silicone to prevent foreign materials from sticking to these compo- nents.

6)Replace the spring.

7.2.2Reassembly of the One Way Valve

1)Slide the new O-ring over the poppet.

2)Insert the new spring into the valve body, followed by the poppet.

3)Next, install the new O-ring and new wiper on the

seat. Thread the seat into the valve body.

4)Tighten the seat to 150 inch lbs. (17 Newton me- ters) with a torque wrench while holding the body in a soft jaw vice or wrench.

5)If the adapter has been removed, it must be cleaned and wrapped with Teflon tape.

WARNING

Do not allow any Teflon tape to cover the end of the adapter, or to enter the one- way valve. Loose pieces of Teflon tape can interfere with the performance of the one-way valve or the regulator and may block the diver’s air supply. This could lead to death through suffocation.

6)Test the operation of the valve.

7)Place the new O-ring on the end of the one way valve assembly and reinstall the valve assembly in the side block. Tighten to 150 inch lbs. (270 kg.cm.) with a torque wrench.

Tighten to 150 inch lbs. (17 Newton Meters) with a torque wrench.