prism_checklist_02_assembly

• Prism Dive Number

• Location
  Address

• Conducted on

  Date

• Diver

• Buddy

1. Fill scrubber basket with CO2 absorbent + store in airtight container.

• Label Container: Date Packed, Grade, Time Used, Time Left, User

• Date Packed

  Date

• Grade

• Time Used

  Date

• Time Left

  Date

• User

2. Fill O2 & Diluent cylinders, analyze contents, label cylinders with name, date, contents.

• psi/bar Dil Contents

• Pressure

• psi/bar MOD

• O2%

• Pressure

3. Install Regulators + Hoses on H-Plate

• A. O2 system on right (head facing up) - run all lines under bottom tank strap.

  Yes

  No

  N/A

4. Install Head Assembly Onto H-plate

• A. 4 nylon allen screws

  Yes

  No

  N/A

• B. Run O2 solenoid line between right side<br>head mount, flange & H-plate. Tighten hose<br>to solenoid.

  Yes

  No

  N/A

5. Install BCD, Yoke + Backplate Onto H-plate

• A. Long screw on top, short screw on bottom -<br>secure with nylon keepers.<br>

  Yes

  No

  N/A

• B. Install BCD on plate - inflator facing H-Plate.

  Yes

  No

  N/A

• C. Install yoke harness - Fastex clips facing BCD.

  Yes

  No

  N/A

• D. Install backplate and harness – place on<br>washers and tighten butterfly nuts.

  Yes

  No

  N/A

6. Attach Counterlungs To Yoke

• A. Insure inhale counterlung is on right side<br>(with bladder & yoke face-up).

  Yes

  No

  N/A

• B. Clip Fastex buckles in place

  Yes

  No

  N/A

• C. Line-up Velcro parts and compress

  Yes

  No

  N/A

7. Install Counterlung Breathing Hoses To Head

• A. Clean and lubricate O-rings, O-ring grooves<br>and mating surfaces.

  Yes

  No

  N/A

• B. Install hose nuts finger tight. Do not over-tighten.

  Yes

  No

  N/A

8. Attach Gas Supply Lines To Diluent + Oxygen Addition Valves On Counterlungs + BCD Inflator

• A. Attach all 3 QD fittings. Pull on hoses to make<br>sure they are secure.

  Yes

  No

  N/A

9. Assemble DSV/BOV + Hoses, Check + Install

• A. Open/close, purge, mouthpiece

  Yes

  No

  N/A

• B. Check mushroom valve seals and flow direction

  Yes

  No

  N/A

• C. Install hoses onto DSV/BOV

  Yes

  No

  N/A

• D. Perform a mushroom valve sealing test<br>(stereo check)

  Yes

  No

  N/A

• E. Install DSV/BOV onto counterlungs<br>paying attention to flow direction arrow

  Yes

  No

  N/A

• F. Install LED Heads Up Display holder fix/attach<br>cable to breathing hose

  Yes

  No

  N/A

10. Clean Head To Bucket Sealing Rings, O-Ring Grooves + Lube O-Rings

• A. Remove O-rings per manual instructions, clean +<br>replace if needed.

  Yes

  No

  N/A

11. Clean Red CO2 Seal + Secure In Place

• B. Make sure the red CO2 seal is firmly seated in its<br>groove (triple check!)

  Yes

  No

  N/A

• A. Make sure there is no debris, dust or lubricant.<br>Clean seal groove.

  Yes

  No

  N/A

12. Check Filled CO2 Scrubber Basket

• A. Basket top secure

  Yes

  No

  N/A

• B. Check for settling and firmness of absorbent bed

  Yes

  No

  N/A

13. Check Scrubber Bucket

• A. Ensure bucket sealing surface is clean

  Yes

  No

  N/A

• B. Basket compression spring installed + functional

  Yes

  No

  N/A

• C. Install bucket moisture pads

  Yes

  No

  N/A

• D. Make sure the pad is not resting on or interfering<br>with the basket compression spring

  Yes

  No

  N/A

14. Place CO2 Basket In Bucket, Confirm Center Tube Opening Up, Mount + Seal Bucket To Head (record usage time on operational checklist)

• 14. Place CO2 Basket In Bucket, Confirm Center<br>Tube Opening Up, Mount + Seal Bucket<br>To Head (record usage time on operational<br>checklist)

  Yes

  No

  N/A