Lanyard Stop Switch - Mercury MR504LB3 Manual

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We recommend instructing other occupants on proper starting and operating procedures should they need to operate the
engine in an emergency.
Accidental or unintended activation of the switch during normal operation is also possible, which can cause any or all of the
following potentially hazardous situations:
Occupants can be thrown forward due to unexpected loss of forward motion, and passengers in the front of the boat could
be ejected over the bow and possibly struck by the propulsion or steering components.
The operator can lose power and directional control in heavy seas, strong current, or high winds.
The operator can lose control of the vessel when docking.
Restarting an engine using the key switch or start button after an E‑stop shutdown without first turning the key switch to the off
position for at least 30 seconds will restart the engine but cause fault codes to be set. Unless you are in a potentially hazardous
situation, turn the key switch off and wait at least 30 seconds before restarting the engine or engines. If after restarting, some
fault codes are still being displayed, contact your authorized Mercury Diesel repair facility.

Lanyard Stop Switch

A lanyard switch is designed to shut down the engine in the event the operator unexpectedly moves away from the helm, as
may happen in an accidental ejection. The lanyard is connected to the operator's personal flotation device or wrist.
A decal near the lanyard stop switch reminds the operator to attach the lanyard to his or her personal flotation device or wrist.
a
Accidental ejections, such as falling overboard, are more likely to occur in:
Low‑sided sport boats
Bass boats
High‑performance boats
Accidental ejections can also occur from:
Poor operating practices
Sitting on the seat or gunwale at planing speeds
Standing at planing speeds
Operating at planing speeds in shallow or obstacle‑infested waters
Releasing your grip on the steering wheel
Carelessness caused by consuming alcohol or drugs
High‑speed boating maneuvers
The lanyard is a cord usually between 122 and 152 cm (4 and 5 ft) long when stretched out, with an element on one end made
to be inserted into the switch, and a snap on the other end for attaching to the operator. The lanyard is coiled to make its at‑rest
condition as short as possible to minimize the likelihood of lanyard entanglement with nearby objects. Its stretched‑out length is
made to minimize the likelihood of accidental activation should the operator choose to move around in an area close to the
operator's normal position. The operator can shorten the lanyard by wrapping the lanyard around his wrist, or by tying a knot in
the lanyard.
Activation of the lanyard stop switch will stop the engine immediately, but the boat will continue to coast for some distance,
depending upon its velocity. While the boat is coasting, it can cause injury to anyone in the boat's path as it would under power.
Instruct all passengers on the proper starting and operating procedures should they be required to operate the boat in an
emergency.
If the operator falls out of the boat, stop the engine immediately to reduce the possibility of serious injury or death from being
struck by the boat. Always properly connect the operator to the stop switch using a lanyard.
90-8M0089579
MARCH 2014
eng
ATTACH LANYARD
b
RUN
OFF
c
Section 2 - Getting to Know Your Power Package
a -
Lanyard cord clip
b -
Lanyard decal
c -

Lanyard stop switch

53910
WARNING
!
Page 19

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