1. Check H-Plate / Harness / BC for Wear,
Damage or Missing Parts

A. H-Plate

B. Harness (W)

C. Fabric (W)

D. Inflator / Alt. Air Source (O)

E. Dump Valve(s) (O, W)

F. Removable Weight Pockets (W, I)

G. Fastening Clips (W)

2. Inspect Counterlungs

A. Fabric (W)

B. Drains (O)

C. Threaded DSV/BOV Assembly Rings (W)

D. Breathing Hoses, Oetiker Clamps,
+ O-Rings (W)

E. O2 Addition Valve (I, O)

F. Automatic Diluent Valve (ADV) (O)

G. Over-Pressure Valve (OPV) (O)

3. Inspect DSV/BOV Breathing Hoses

A. Hoses

B. Oetiker Clamps (W)

C. O-Rings (W)

D. Inhalation Hose Mushroom Valve
(only on inhale hose for DSV supplied systems)
(O, W)

4. Inspect DSV/BOV

A. Shut-Down/OC Assembly (O)

B. Water Drain (O)

C. Mouthpiece, Zip-Tie

D. DSV/BOV Exhalation Mushroom Valve (O,W)

E. Inhalation Hose Mushroom Valve (only on
inhale side of BOV) (O, W)

5. Inspect Regulators + Hoses

A. 1st Stages (W)

B. Pressure Relief Valves

C. LP Hoses + Connectors (W)

D. HP Hoses + Connectors (W)

E. Diver Installed Gas Supply Hoses
(if installed)

F. Pressure Gauges

6. Inspect Wiring

A. Heads Up Display (W)

B. Wrist Display (W)

7. Battery Compartment, Batteries
+ O-Rings

A. Solenoid Batteries (I)

B. Heads Up Display Battery (I)

C. O-Rings (2) (W)

D. Cover, Cover Latches + Keepers (O,W)

8. Solenoid Operation

Solenoid Operation (O)(If proceeding
immediately to assembly and operational
checks, you can skip this step.)

9. Inspect Head Assembly

A. Red CO2 Seal (I, W)

B. Head To Bucket O-Rings (2) (W)

C. O-Ring Seats (W)

D. Latch Keeper (W)

E. Nut Bars, Head Bolts, Head Cover Bar +
Head Cover (W, I)

10. Oxygen Sensors

A. 3 Oxygen Sensors + Sensor Holders Installed (I)

B. Oxygen Sensor Wiring Harness (I)

C. mV Readings Within Range(O)
(8.5 mV to 14 mV in air)

11. Bucket Assembly

C. 1 Moisture Pad (I)

B. Latches (3) (W, O)

A. Basket Compression Spring + Pad(I)

12. Basket Assembly

D. Top + Bottom Foam Pads (I)

B. Center Tube O-Ring (I)

C. Top + Basket Threads Clean (O)

A. Check Mesh (W)

Please note that this checklist is a hypothetical example and provides basic information only. It is not intended to take the place of, among other things, workplace, health and safety advice; medical advice, diagnosis, or treatment; or other applicable laws. You should also seek your own professional advice to determine if the use of such checklist is permissible in your workplace or jurisdiction.