Safety Interlock System - Ferris IS4000Z/D31 Operator's Manual

E. PTO (Power Take Off) Switch
The PTO switch engages and disengages the mower.
Pull UP on the switch to engage the mower, and push
DOWN to disengage the mower.
F & G. Deck Lift Pedal & Cutting Height
Adjustment Pin
These control the cutting height of the mower deck.
Depress the pedal until it locks into the TRANSPORT
position. Place the adjustment pin in the desired cutting
height and release the lift pedal.
H & I. Throttle / Choke Control
Pulling the round choke control knob (I) out fully chokes
the engine for cold starts. (A warm engine may not
require choking.) Moving the throttle control (H) fully for-
ward is FULL throttle position. Always operate the unit
at FULL throttle when mowing.
J. Hour Meter
Measures the time of the PTO being engaged.
K. Voltmeter
Measures the battery voltage.
L. Water Temperature Gauge
Measures the engine coolant temperature.
M. Indicator Lights & Warning Buzzer
The indicator lights will illuminate and buzzer will sound
when the ignition switch is in the "ON" position before
cranking the engine. After the engine is running, the
indicator lights will illuminate and the buzzer will sound
when there is either low oil pressure or high coolant
temperature.
N. Fuel Tank Selection/Shut Off Valve
Turning the handle to the desired position determines
which tank will be supplying fuel. With the handle point-
ing towards the left, it will draw fuel from the left-hand
tank. With the handle pointed towards the right, it will
draw fuel from the right-hand fuel tank. With the handle
pointing towards the operator, it will shut off fuel flow to
the engine.
O. Left Tank Selection Valve
Turning the handle to the desired position determines
which section of the left-hand tank will be supplying fuel.
With the handle pointing towards the right, it will draw
fuel from the primary section of the fuel tank. With the
handle pointing towards the left, it will draw from the
reserve section of the tank. With the handle pointing
towards the operator, it will shut off fuel flow to the tank
selection shut off valve.
This unit is equipped with safety interlock switches and
other safety devices. These safety systems are present
for your well being, 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 a seat switch safety system.
Check the seat switch operation every fall and spring
with the following tests.
Test 1 — Engine should NOT crank if:
Test 2 — Engine SHOULD crank if:
(IS4000Z/D31 only)
Test 3 — Engine should SHUT OFF if:
Test 4 — Blade Brake Check
Mower blades and mower drive belt should come to a
complete stop within seven seconds after electric PTO
switch is turned off (or operator rises off seat). If mower
drive belt does not stop within seven 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.
7
SAFETY
INTERLOCK SYSTEM
• PTO switch is engaged, OR
• Parking brake is not engaged, OR
• Motion control handles are not in the NEUTRAL
position, OR
• Operator is not on the seat.
• PTO switch is NOT engaged, AND
• Parking brake is engaged, AND
• Motion control handles are locked in the NEUTRAL
position, AND
• Operator is on the seat.
• Operator rises off seat with PTO engaged, OR
• Operator rises off seat with parking brake disen-
gaged, OR
• Operator moves the control levers out of the neutral
position with the parking brake engaged.
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.
Features & Controls