20 Chapter 2: Components/Systems
4100 SCB Owner’s Manual Supplement
To test a float switch:
1. Push the float switch test button up to
activate the bilge pump. If the pump does
not turn on, check the inline fuse. If the
fuse is good but the switch doesn’t work,
it may indicate a bad switch or possibly a
low battery.
2. Push the test button all the way down
to return the float switch back into the
auto mode.
Fuel System
Carefully read the fuel sections of the owner’s manual and the engine operation manual.
Fuel Quality
Make sure your fuel suppliers are reputable and can be relied upon to furnish clean, high quality fuel. Once you have
found such suppliers, keep your tank as full as possible with their fuel, allowing for expansion due to temperature
variations. Then, if you are forced to add to the tank with a potentially poor quality supply, the portion of poor quality
fuel will be minimized. Refer to your engine manual for fuel grade recommendations.
FLOAT DOWN - AUTO MODE FLOAT UP - TEST MODE
BILGE PUMP SHOULD TURN ON
BILGE PUMP SHOULD TURN OFF
FLOAT SWITCH OPERATION
FLOAT SWITCH
TEST BUTTON
(TYPICAL)
When test is completed the float switch, you MUST push the test button all the way down to the
auto position to turn the switch back into auto mode!
CAUTION!
!
FIRE, EXPLOSION AND OPEN FLAME HAZARDS!
• It is very important that the fuel system be inspected thoroughly the first time it is filled
and at each subsequent filling.
• The fueling instructions in the engine operation manual must be followed.
WARNING!
!
• Diesel: Air in the diesel supply system can stop an engine or severely restrict performance.
If you suspect air in the fuel lines, refer to your engine operation manual for detailed
instructions on how to bleed the system.
• Avoid the storage or handling of gear near the fuel lines, fittings and tanks.
CAUTION!
!
Discharge of fuel into navigable waters is prohibited by law. Violators are subject to legal
action by the local authorities.
NOTICE
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