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L510032-16
ENGINE MAINTENANCE - 11
ELECTRICAL SYSTEM RELAY AND FUSE
BLOCK
MAIN PANEL FUSE
Some Crusader Challenger engines are equipped with a
40 Amp PANEL fuse which provides electrical overload
protection for the boat’s instrumentation wiring and
components. Should an electrical overload occur, the
PANEL fuse will open and prevent electrical current ow.
When this fuse opens, the cause for the high current
draw must be found and corrected. Check the battery
and alternator connections and all other harness
connectors between the boat and the engine main
harness. Check for loose or disconnected lead wires
and shorted circuits. Replace the PANEL fuse and
resume operation. If the cause of the overload cannot
be found, consult an authorized Crusader Challenger
Engines Certied Dealer to make necessary repairs.
NOTICE: Most Dash, lighting and stereo power comes
directly from the battery through circuit protection in the
boat. Consult your boat manufacturer for operation of
these systems.
ELECTRICAL SYSTEM FUSES
Crusader Challenger engines utilize fuses to protect
critical engine components and devices. The fuel
pump, ECM, ignition components, fuel injectors, starter
and diagnostic devices are protected by fuses. The
fuse block is mounted on a bracket near the rear of the
engine.
BOAT’S IGNITION FUSE
If the engine will not crank when the ignition key is
turned to the START position, rst check that the shift
lever is in the neutral position and the safety lanyard
(if equipped) is attached properly. If none of the Fuse
Block fuses are open, check for a blown boat ignition
fuse. The boat’s ignition fuse may be located on the
instrument panel, the fuse holder block or as part of
the helm’s instrument wiring harness. Check the wiring
diagrams supplied from the boat manufacturer for the
exact location.
Figure 11-5 (Typical) Electrical System Relay and Fuse
Block
ELECTRICAL SYSTEM WIRING AND
CONNECTORS
The electrical system wiring and connectors should be
checked periodically for loose or dirty connections and
damaged wiring. If electrical components or wiring show
signs of corrosion, deterioration or damage, consult
an authorized Crusader Challenger Engines Certied
Dealer to make necessary repairs.
BATTERY
WARNING
Battery electrolyte is a corrosive acid and should
be handled with care. If electrolyte is spilled or
splashed on any part of the body, IMMEDIATELY
ush the exposed area with liberal amounts of water
and obtain medical aid as soon as possible. Safety
glasses and rubber gloves are recommended when
handling batteries or lling with electrolyte.
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