Williams J/T 285 Manuel Du Propriétaire page 4

6
OPERATING YOUR TENDER
This boat uses a water-jet propulsion system and has unique characteristics in steering. The throttle
produces thrust from the jet pump, the directional control is provided by opening the throttle and
turning the wheel in the direction of your turn. High thrust will turn the boat sharply; low thrust will
produce less turning force. There is no rudder, so while underway there is no steering without thrust.
If weed or debris gets caught in the jet unit during use cavitation can occur causing a decrease in
forward thrust. If this condition is allowed to continue the engine may overheat resulting in serious
damage. If there is any sign of debris or weeds etc. blocking the jet, remove the boat from the
water. Switch off battery isolator and remove all debris from around the jet unit. DO NOT make
repeated attempts to start a blocked or jammed tender as engine damage may result. In case
of diffi culty consult your Williams approved dealer.
TOWING
CAUTION: Risk of engine fl ooding exists. Towing valve fi tted. Valve must be in the
CLOSED position for towing and OPEN position for running. Failure to observe
correct valve position will result in serious engine damage.
MOORING
Do not leave the Turbojet moored for extended periods as this may result in an
accumulation of marine growth and a loss of performance.
BEACHING
DO NOT operate in less than 0.5m/2ft of water as debris may enter the jet unit. DO NOT drive turbojet
onto beach. Stop engine before beaching as damage to pump/engine cooling may occur.
After beaching move boat into deeper water and tilt from side to side several times to remove
sand from intake area – failure to do so could cause damage to jet unit.
TRIM
Do not overload the boat. At all speeds be aware of trim and keep weight evenly distributed.
GENERAL
Operate the boat with due care and at a speed appropriate to the sea conditions. Always carry out
a visual check of the boat and its components prior to use. Adhere to the maintenance/service
schedule as detailed in the service manual.
WARNING LIGHTS
1. EXHAUST TEMPERATURE
This lamp will illuminate if the open loop coolant supply is restricted.
After restarting a hot engine it is normal for the lamp to stay
on for up to 30 seconds. If the lamp stays on for longer than 30
seconds or comes on when engine is above idle, STOP the engine
and check for restriction in coolant system (debris in pump/pipes).
2. ECU MALFUNCTION
This lamp will illuminate if there is a fault with the engine
management system. If this occurs STOP the engine and
refer to Williams approved dealer.
3. LOW OIL PRESSURE
If this illuminates, STOP the engine and refer to Williams
approved dealer.
AFTER USE:
FLUSHING PROCEDURE
To prolong engine life it is very important to fl ush engine of salt water after use and
prior to storage. Failure to carry out fl ushing will signifi cantly reduce the life of
engine components. DO NOT operate throttle out of water.
before water is connected. Risk of engine fl ooding exists if water remains on after
engine is switched off.
1. Remove the boat from the water everyday and wash entire boat/jet pump with fresh water.
2. Connect a fresh water hose fi tted with the male connector supplied with the tender to
the coupling.
3. Start engine and immediately turn on water supply.
4. Run engine at idle for approximately 1 minute to completely fl ush the open loop cooling system.
5. Turn off water supply.
6. Allow the engine to run for no longer than 10 seconds for all water to exit from the cooling
system, then turn off the engine. Remove hose connector from transom coupling.
7. Check bilge of boat and dry any residual water. Remove footwell drain plugs.
1. Bilge outlet
2. Open loop coolant
overfl ow
3. Fuel spill overfl ow
4. Right hand rear
footwell drain
5. Pump anode
6. Ride plate anode
7. Left hand rear
footwell drain
8. Front footwell drain
OIL LEVEL CHECK
The Weber engine is a 'dry sump' type engine, with a separate
oil tank. When the engine is started oil is pumped into the tank.
After the engine has run, oil will slowly return from the tank to
the sump. The engine must be at operating temperature
before an accurate level is indicated on the dip-stick.
The oil level should be between MIN and MAX on the dipstick.
3
Do not screw in cap to check level. Use the correct grade of oil.
Do not overfi ll.
1
SERVICING
2
The important post run-in 1st service is required at 25 hours. Thereafter servicing is required every
50 hours or yearly whichever comes fi rst. Consult your Williams approved dealer for servicing.
Refer to the Williams service manual for periodic engine maintenance.
For parts and accessories please contact your Williams approved dealer.
Engine MUST be running
1
2
8
7
5
6
7
3
4
MAX
0.5 Ltr/0.53 qt US
MIN