When in following seas or when running an inlet, the plates should be fully retracted. This will allow for optimal performance.
ELECTRO-MECHANICAL ACTUATORS PROVIDE AN INSTANT RESPONSE. WHEN MAKING ADJUSTMENTS, USE SHORT MO- MENTARY TAPS OF THE SWITCH.
Ballast Empty/Fill Switches
(On Ballast-equipped Models Only) On boat models equipped with a ballast system, a separate three-position switch will allow for the filling or emptying of the ballast tanks and/or bags. Be aware that the engine must operate at 1500 RPM during the fill and empty processes. Check engine specifications for related engine idle speed, which may be too low for the empty/fill operation to be properly accomplished; it is likely that the boat will need to be in motion during the filling and
emptying of the ballast system. Failure to increase engine RPM to the required level may result in malfunction or permanent damage to the ballast pumps that force the water through the system. Such damage is not covered under your warranty. The ballast controls vary in location by model, and the operator should determine exact location prior to use. The three-position switches are clearly marked; FILL, OFF (in center), and EMPTY.
Manual and Automatic Bilge
Pump Switch (Manual and
Automatic)
(All Models)
The bilge pumps on all V-drive models will be in the automatic mode when the igni- tion key is turned ON. Some models may
have two (2) switches, one for the forward bilge and one for the aft. In these instances, the switches will be marked. The manual and automatic bilge discharge system is never completely off.
When in the automatic (default) position, a sensor alerts the system to discharge water from the bilge area. Boat operators are advised to leave the switch in the automatic position, unless there appears to be excess water in the bilge. In that event, the bilge pump can be manually activated by turning the bilge pump switch to the manual ON position. Return the switch to the au- tomatic position when finished emptying the bilge. Leaving the switch in manual mode can result in damage to the pump and may not be covered by warranty!
Blower Switch
(All Models)
A two-position rocker switch activates the engine box ventilation blower. Push the top half of the switch to turn the blower ON.
Note: The blower must operate for a mini-
mum of four (4) minutes before starting the engine at any time.
The blower must also be operated during idle and slow-speed running, but is not necessary during cruising speed.
To prevent a possible explosion, operate the blower for at least four (4) minutes before starting the engine and always when at idle or slow-running speed. Explosive gasoline and/or battery fumes may be present in the engine compartment. Failure to oper- ate the blower as instructed may cause improper ventilation of the boat engine and bilge areas, and fuel vapors can accumulate in this area, causing a fire or explosion which may result in death or serious injury!
Circuit Breakers
(All Models)
All major boat circuits are pro- tected from shorting and overload by re-settable circuit breakers. If a problem develops with one of the following circuits, switch OFF the circuit and wait for approximately one (1) minute. Then fully push the appropriate breaker button and switch ON the circuit. If the circuit continues to trip, there is a problem
somewhere that must be attended to immediately. See your au- thorized MasterCraft service department to resolve this matter.
The location of the main circuit breaker board is under the dash panel. In some models, there is an additional breaker panel to assist with the accessory load, and where equipped is located near the battery box. There may also be a waterproof fuse for the stereo amplifier, where equipped. If the boat’s accessories are malfunctioning, check and then re-set breakers as necessary.
The engines are also equipped with breaker systems. The main 35A circuit breaker protects the engine electrical system and components from overload. If the engine will not turn over with the battery switch in the ON position, locate the red breaker re- set button (labeled “35”) in the engine. There will be an audible click. Try again to start the engine. If the breaker trips again, the engine requires attention. Immediately take your boat to your authorized MasterCraft service department.
In addition to the 35A circuit breaker, the engines are equipped with additional component overload protection, including a 15A ATO fuse for the fuel pump, a 15A ATO fuse for the injectors and a 15A ATO fuse for the ECM unit.
If you suspect that any of these fuses may not be operating as designed, you should take your boat to your authorized Master- Craft service department for inspection and repair.
If during maintenance or inspection it becomes necessary to remove or re-position any of the engine’s wiring or wire
