Brownie’s THIRD LUNG F280X, Owner'S Manual, Page: 11 / 24

PERIODIC MAINTENANCE
Much of the maintenance will be determined by such factors as frequency of usage, wind and sea conditions, and attention
after the dive and storage conditions. Assuming you have followed the simple post dive procedures, periodic maintenance
will be easy and inexpensive.
NOTE: Engine maintenance is covered in Engine Owner’s Manual.
The inline filter between the black hose and the heat hose needs to be inspected before every
dive and cleaned when dirty. See the diagram below.
Occasionally other compressor maintenance is needed. It is best to call Brownie’s service department to determine what
parts are needed. Generally, all that is required is the cleaning off of mineral deposits from the valve plate and possibly
some inexpensive parts replacement. Hard and frequent usage will require a scheduled inspection program to prevent
breakdown. Your seasonal requirements and frequency of usage will dictate your maintenance schedule.
TROUBLESHOOTINg gUIDE
CONDITION: Diver headache, nausea, dizziness.
POSSIBLE CAUSE: Boat engines running in vicinity of compressor. Exposed chemicals or fuel.
SOLUTION: Abort dive or move to a cleaner air environment.
POSSIBLE CAUSE: Exhaust is entering intake.
SOLUTION: Abort dive and inspect/repair equipment.
CONDITION: Insufficient air.
POSSIBLE CAUSE: Debris in inline filter.
SOLUTION: Replace or clean out as instructed on other page.
POSSIBLE CAUSE: Too many diver’s for the depth attempted.
SOLUTION: Move to shallower water.
POSSIBLE CAUSE: Air leak in hose system.
SOLUTION: Check all fittings. Pouring water on the connections may help detect leaks.
POSSIBLE CAUSE: Compressor may require servicing.
SOLUTION: Have unit inspected and repaired by a qualified technician.
CONDITION: System “frozen”. Inability to pull engine starter rope.
POSSIBLE CAUSE: Seized engine or compressor.
SOLUTION: Have unit inspected and repaired by a qualified technician.
CONDITION: Any strange noises or erratic behavior in system.
POSSIBLE CAUSE: Water intrusion, loss of lubrication in main bearing.
SOLUTION: Have unit inspected and repaired by a qualified technician.
STORAgE
1. If you are going to be storing the unit for more than 2 months you will need to drain the gasoline completely in three
different areas. Remember that you will need to have some sort of container to catch the fuel as it is draining.
2. To do this turn off the gas feed switch and allow the engine to run until it shuts off. Unscrew the big main bolt un-
derneath the carburetor to drain the gas. After the gas has drained out replace the bolt and turn the on/off switch to
the off position.
3. You will then need to drain all of the gasoline out of the fuel tank. Remove the small bolt located underneath the
gas feed switch and drain the entire contents of the fuel tank.
4. Then use a flat head screwdriver to disconnect the gas line from the carburetor.
5. It is okay to store the unit with oil, but it must be drained before being shipped.
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