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 2023 OWNER’S MANUAL 
Fire extinguishers require periodic maintenance. Monthly, each  
fire extinguisher on your boat should be examined to be sure that 
 the seals and tamper indicators are not broken or missing.  
The pressure gauges or indicators, if applicable, should read in 
the operable range. There should be no obvious physical damage, 
rust, corrosion, leakage or clogged nozzles. Additionally, if the 
extinguisher has not been used, it should be weighed annually to 
assure that the minimum weight as stated on the label still exists. 
Any fire extinguisher that has been partially emptied must be 
replaced as soon as possible.
In an automatic/manual system, ensure the pin inserted to protect 
the system at the helm during transit from the factory (pictured 
above) has been pulled to activate the system. This is part of 
dealer preparation, but it is the responsibility of the boat owner to 
ensure that the system is functional. 
FIRE SUPPRESSION  
AND EXTINGUISHING
All MasterCraft boats are equipped with an automatic fire 
suppression system. The automatic system operates from 
sensors in the engine room and will automatically release a clean-
agent, gaseous chemical that does not leave residue behind. 
It is also possible to activate the system manually on the domestic 
boats only. Pull the pin with the red tag (pictured to left), and then  
pull the red fire handle to set the system in operation. 
(International boats are automatic only.)
In case of an engine compartment fire, shut down the engine 
and blowers before manual discharge, or immediately following 
the automatic discharge. Boats are equipped with a discharge 
indication light at the instrument panel or on the video display 
gauge at the helm. 
After the suppression system has been used, the fire extinguisher 
canister will be empty. The boat owner/operator should have the 
canister replaced as soon as possible. 
MasterCraft boats have also been specified to carry a hand-held 
2.5 lb. monoammonium phosphate expellant (dry chemical) unit, 
which is rated Class A (trash, wood and paper), Class B (flammable 
liquids, fuel, gas) and Class C (energized electrical equipment).