Safety Interlock System - Simplicity ZT3500B2448 Operator's Manual

Safety Alert Symbol and 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 serial injury or death.
CAUTION
This indicates a hazard which, if not avoided, might result
in minor or moderate injury.
CAUTION or NOTICE
These messages presented without the alert symbol indicate
a situation where the unit or property could be damaged.
Safety Icons
A B
E F
I J
Callout Description
A Alert
B Read the Manual
C Fire Hazard
D Keep Children Away
E Maximum Slope Angle for Safe Operation
F Tipover
G Slippery Slopes
H Amputation - Rotating Parts
C D
G H
K
Operator Safety
I Amputation - Hand in Blade
J Amputation - Foot in Blade
K Thrown Objects

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.
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.
Test 3 — Engine should SHUT OFF if:
• Operator rises off seat with PTO engaged, OR
• Operator rises off seat with parking brake disengaged.
• Operator moves ground speed control levers out of their
neutral positions before disengaging parking brake.
Test 4 — Blade Brake Check
Mower blades and mower drive belt should come to a
complete stop within five (5) seconds after electric PTO
switch is turned off (or operator rises off seat). If mower
drive belt does not stop within five (5) seconds, see your
dealer.
NOTE: Once the engine has stopped, PTO switch must be
turned off, parking brake must be engaged, and the motion
control handles must be locked in the NEUTRAL position
after the operator returns to the seat in order to start the
engine.
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.
9