Auto-Float Switch - Maxum 2400 SR3 Owner's Manual

Chapter 5: Plumbing
Bilge Pump Testing
• The bilge pump is critical to the safety of your boat.
• Check the bilge pump often to make sure it is working.
Test the pump as follows:
1. Turn On the bilge pump switch at the helm.
2. Any water in the bilge should pump overboard.
• If the pump motor is running, but not pumping, inspect the discharge
hose for a kink or collapsed area.
• If no problems are found, check the bilge pump housing for clogging
debris as follows:
1. Remove the power cartridge:
a. Lift the tab while rotating the fins counter-clockwise.
b. Lift out the power cartridge.
c. Clear the outer housing of debris.
2. Reinstall the power cartridge:
a. Make sure the "O" ring is properly seated.
b. Coat the "O" ring with a light film of vegetable or mineral oil.
c. Align the cams on either side of the power cartridge with the two
slots on the outer housing.
d. Press the power cartridge into the housing while twisting clockwise.
3. Check the reinstallation by trying to twist the fins counter-clockwise
without lifting the tab; the cartridge should stay in place.

Auto-float Switch

• A float switch (auto-float) turns On the bilge pump whenever water rises above a preset level in the bilge.
• The auto-float switch is mounted next to the bilge pump.
• The auto-float switch is wired directly to the battery and should work even when the boat is completely shut down
and left unattended.
Test the float switch often, as follows:
1. Lift the float switch test button up
to turn On the bilge pump.
• If the pump does not turn On,
check the fuse on the fuse block.
• If the fuse is good but the switch still
does not work, it may mean the switch
is bad or possibly the battery is low.
2. Push test button all the way down to
return the float switch to auto mode.
When the test is complete, you MUST push the test button all the way down to the auto position
to return the switch to auto mode!
28
LIFT SWITCH UP
BILGE PUMP SHOULD TURN ON
!
CAUTION!
BILGE PUMP COMPONENTS
TAB
LIGHT FILM
OF OIL "O" RING
CAM POWER
(TYPICAL) CARTRIDGE
FLOAT SWITCH
TESTING
FLOAT SWITCH
TEST BUTTON
PUSH SWITCH DOWN
BILGE PUMP SHOULD TURN OFF
FIN
OUTER
HOUSING
SLOT
(TYPICAL)