ALL INFORMATION IS PROPRIETARY AND MAY NOT BE COPIED WITHOUT WRITTEN PERMISSION OF SUBMERSIBLE SYSTEMS.
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G:\Mktg\MILT\Heed 3 tech manual.hose
5
GENERAL SERVICING INFORMATION
NOTE: Ensure HEED is always pressurized whenever it is submerged to prevent water from entering system. If
HEED has been emptied of air underwater it should be referred for five year service.
NOTE: If a leak or damage is found at any point the unit should be referred for five year service.
ANNUAL CHECK: (performed by user):
1.
Visually check Dial Gauge for needle to be within green zone. If it is not, perform a leak test to determine if
the HEED is actually leaking or if it just needs to be filled.
2.
Look for obvious physical damage, such as broken or loose parts. Check openings of diaphragm cover for
presence of foreign objects or punctures of blue diaphragm. Check that all parts are clean and securely
attached.
3.
Perform a leak test. HEED must be pressurized and needle within the green zone.
a. Completely submerge filled unit into a tub of water.
b. Shake the unit back and forth several times so that all trapped air is released.
c. Hold the unit still and watch for any leaks for 60 seconds (spend 20 seconds at each of the following:
mouthpiece opening, side ports, and tank o-ring areas).
NOTE: A leak is defined as a continuous bubble at a constant rate.
d. If leak is detected, refer unit for five year service.
FIVE YEAR SERVICE: (must be done by certified repair technician or returned to manufacturer):
1.
Every five years the regulator should be overhauled with a complete overhaul kit. Refer to Service Manual for
complete instructions. Only personnel certified to repair HEED can perform the repair or refer units to the
manufacturer for servicing at:
Submersible Systems
7413 Slater Ave.
Huntington Beach, CA 92647
2.
DOT 3AL cylinder: Hydrostatic testing is required every five years. DOT also requires that any cylinder
exposed to fire or heat in excess of 350°F be condemned. CE marked cylinder: Refer to local country
regulations for how often hydrostatic testing should occur.
NOTE: Any cylinder that shows signs of corrosion, pitting or damage during any service checks should be
evaluated further.
ROUTINE CARE / STORAGE:
1.
For general cleaning, use a mild dish soap or Simple Green / biodegradable solution.
2.
For sanitizing, use a commercially available regulator sanitizer available through a dive shop.
3.
Keep the threads on both the Refill Port and Refill Adapter clean and lubricated. Use high-quality, non-
toxic, food grade silicone grease for best results.
NOTE: NEVER use a hydrocarbon based oil (i.e. household oil or motor oil).
4.
HEED used frequently in a water training environment need extra care:
a. After use, rinse and soak for at least 30 minutes in warm, fresh water.
b. Gently shake to dislodge any water and wipe dry with a clean towel.
c. Will require service every three to six months.
5.
Store HEED full or with some positive pressure to prevent contaminants from entering the cylinder. Store in
a clean, dry environment with optimum temperatures of 50-75ºF for best product performance. Avoid direct
sunlight, automobile trunks or other areas subject to temperature extremes.
NOTE: Industry guidelines recommend replacing air in cylinders annually.
