Beta Marine Beta 50 Operator's Maintenance Manual page 29

EMERGENCY STOPPING
Every propulsion engine is fitted with a back up stop lever.
To activate and stop the engine manually, simply press
the stop lever highlighted in image 24 down and hold in
place until engine stops.
For control panels operated by a key switch, turn the
key from the run to the off position. Then for all engines
regardless of control panel type, isolate the starter battery.
24
Stop lever
When leaving the vessel for an extended period: turn off the sea-cock if heat exchanger cooled and isolate
the starter battery.
Speed lever
WARNING!
DO NOT leave the key in the 'OFF' position when
engine is running. This will not allow the alternator
to charge and will damage the alternator.
DO NOT depress the stop lever for more than ten
seconds as this will lead to overheating and failure
of the solenoid.
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