Steering Link Rod Fasteners; Fuse Replacement - Electric Start Models; Corrosion Control Anode; Propeller Replacement - Mercury 40 Manual

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MAINTENANCE
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STEERING LINK ROD FASTENERS

IMPORTANT: The steering link rod that connects the steering cable to the
engine must be fastened using special washer head bolt ("a" – Part Number
10-14000) and self locking nylon insert locknuts ("b" & "c" – Part Number
11-34863). These locknuts must never be replaced with common nuts (non
locking) as they will work loose and vibrate off, freeing the link rod to
disengage.
WARNING
Disengagement of a steering link rod can result in the boat taking a full,
sudden, sharp turn. This potentially violent action can cause occupants
to be thrown overboard exposing them to serious injury or death.
Assemble steering link rod to steering cable with two flat washers (d) and nylon
insert locknut ("b" – Part Number 11-34863). Tighten locknut (b) until it seats, then
back nut off 1/4 turn.
Assemble steering link rod to engine with special washer head bolt ("a" – Part
Number 10-14000), self locking nylon insert locknut ("c" – Part Number 11-34863)
and spacer ("e" – Part Number 12-71970) First torque bolt (a) to 20 lb. ft. (27 N·m),
then torque locknut (c) to 20 lb. ft. (27 N·m).
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FUSE REPLACEMENT - ELECTRIC START MODELS

IMPORTANT: Always carry spare SFE 20 AMP fuses.
The electric starting circuit is protected from overload by an SFE 20 AMP fuse. If
the fuse is blown, the electric starter motor will not operate. Try to locate and
correct the cause of the overload. If the cause is not found, the fuse may blow
again.
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Open the fuse holder and look at the silver colored band inside the fuse. If band
is broken, replace the fuse. Replace fuse with a new fuse with the same rating.
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CORROSION CONTROL ANODE

Your outboard has two corrosion control anodes. One of the anodes is the trim tab
installed on the gear case and the other is installed on the bottom of the transom
bracket assembly. An anode helps protect the outboard against galvanic corrosion
by sacrificing its metal to be slowly eroded instead of the outboard metals.
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Each anode requires periodic inspection especially in salt water which will
accelerate the erosion. To maintain this corrosion protection, always replace
the anode before it is completely eroded. Never paint or apply a protective
coating on the anode as this will reduce effectiveness of the anode.
90-10170R40
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PROPELLER REPLACEMENT

If the propeller shaft is rotated while the engine is in gear, there is the pos-
sibility that the engine will crank over and start. To prevent this type of
accidental engine starting and possible serious injury caused from being
struck by a rotating propeller, always shift outboard to neutral position
and remove spark plug leads when you are servicing the propeller.
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Shift outboard to neutral (N) position.
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Remove the spark plug leads to prevent engine from starting.
3
Straighten the bent tabs on the propeller nut retainer.
4
Place a block of wood between gear case and propeller to hold propeller and
remove propeller nut.
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Pull propeller straight off shaft. If propeller is seized to the shaft and cannot be
removed, have the propeller removed by an authorized dealer.
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PROPELLER REPLACEMENT (CONTINUED)
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Coat the propeller shaft with Quicksilver or Mercury Precision Lubricants
Anti-Corrosion Grease or 2-4-C Marine Lubricant with Teflon.
IMPORTANT: To prevent the propeller hub from corroding and seizing to the
propeller shaft, especially in salt water, always apply a coat of the
recommended lubricant to the entire propeller shaft at the recommended
maintenance intervals and also each time the propeller is removed.
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Flo-Torque I Drive Hub Propellers – Install forward thrust hub (a), propeller (b),
propeller nut retainer (c) and propeller nut (d) onto the shaft.
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Flo-Torque II Drive Hub Propellers – Install forward thrust hub (a), propeller (b),
replaceable drive sleeve (c), rear thrust hub (d), propeller nut retainer (e) and
propeller nut (f) onto the shaft.
9
Place propeller nut retainer over pins (a). Place a block of wood between gear
case and propeller and tighten propeller nut to 55 lb. ft. (75 N·m), aligning flat
sides of the propeller nut with tabs on the propeller nut retainer.
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Secure propeller nut by bending tabs (b) up and against the flats on the
propeller nut.
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Reinstall spark plug leads.
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WARNING
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