Ferris Industries HydroCut Series 5900111 - Manual (Page 14)

SAFETY
INTERLOCK SYSTEM
This unit is equipped with safety interlock switches
and other safety devices. 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
Your unit is equipped with an operator presence
switch safety system. Check the operator presence
switch operation every fall and spring with the
following tests.
Test 1 — Engine WILL NOT start if:
• PTO switch is engaged.
• Parking brake is disengaged. (36” model only)
Test 2 — Engine WILL start if:
• PTO switch is NOT engaged.
• Parking brake is engaged. (36” model only)
Test 3 — Engine should SHUT OFF if:
• Operator releases the operator presence / parking
brake handles with PTO engaged. (manual start)
• Operator releases the ground speed control
handles / operator presence with the PTO
engaged. (electric start)
• Operator releases the ground speed control
handles / operator presence with the parking
brake disengaged. (36” model)
Test 4 — 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 releases
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