Safety Interlock System - Briggs & Stratton SnapperPRO S800X Series Operator's Manual

Operator Safety

Safety Interlock System

This unit is equipped with safety interlock switches. These
safety systems are present for your safety, do not attempt
to bypass safety switches, and never tamper with safety
devices. Check their operation regularly.
Operational SAFETY Checks
Test 1 — Engine should NOT crank if:
• PTO switch is engaged, OR
• Parking brake is not engaged, OR
• Ground speed control levers are not in the NEUTRAL
position, OR
Test 2 — Engine SHOULD crank if:
• PTO switch is NOT engaged, AND
• Parking brake is engaged, AND
• Ground speed control levers are locked in the NEUTRAL
position, AND
Test 3 — Engine should SHUT OFF if:
• Operator rises off the seat with the PTO engaged, OR
• Operator rises off the seat with the parking brake
disengaged.
• Operator moves the ground speed control levers out of
their NEUTRAL positions before disengaging the parking
brake.
• Operator moves the ground speed control levers out of
the NEUTRAL position be positioning the mower deck in
the operating position.
Test 4 — PTO SHOULD shut off if:
• Operator raises the deck from the operating position
with the PTO engaged.
Test 5 — PTO should NOT engage if:
• Operator engages the PTO before the mower deck is in
the operating position.
Test 6 — Blade Brake Check
Mower blades and mower drive belt should come to a
complete stop within seven (7) seconds after electric PTO
switch is turned off (or operator raises from the seat). If
mower drive belt does not stop within seven (7) seconds,
see your dealer.
NOTE: Once the engine has stopped, the PTO switch must
be turned off, parking brake must be engaged, the ground
speed control levers must be locked in the NEUTRAL
position, after the operator returns to the seat to start the
engine.
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WARNING
If the unit does not pass a safety test, do NOT operate
it. See your authorized dealer. Under no circumstance
should you attempt to defeat the purpose of the safety
interlock system.
Safety Alert Symbol & Signal Words
The alert symbol ( ) is used to identity safety information
about hazards that can result in personal injury. A signal
word (DANGER, WARNING, or CAUTION) is used with the
alert symbol to indicate the likelihood and the potential
severity of the injury. In addition, a hazard icon may be
used to represent the type of hazard. An explanation of
hazard levels and icons are as follows:
DANGER
This indicates a hazard which, if not avoided, will result in
serious injury or death.
WARNING
This indicates a hazard which, if not avoided, could result
in serious injury or death.
CAUTION
This indicates a hazard which, if not avoided, might result
in serious injury or death.
NOTICE
This message presented without the alert symbol indicates
a situation where the unit or property could be damaged.
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