Safety Interlock System - Ferris ISZKAV23/52 Operator's Manual

D. Parking Brake Handle
The parking brake is applied by pulling UP on the park-
ing brake handle until it locks over-center. To release the
parking brake, push the handle DOWN.
E. PTO (Power Take Off) Switch
The PTO switch engages and disengages the mower.
Pull UP on the switch to engage, and push DOWN to
disengage.
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. Fuel Shut Off Valve
Turning the handle to the desired position determines
which tank will be supplying fuel. With the handle point-
ing forward, it will draw fuel from the left-hand tank.
With the handle pointed towards the rear, it will draw fuel
from the right-hand fuel tank. With the handle pointing
towards the right, it will shut off fuel flow to the engine.
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 switch-
es, 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:
• 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.
Test 2 — Engine SHOULD crank if:
• 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.
Test 3 — Engine should SHUT OFF if:
• Operator rises off seat with PTO engaged, OR
• Operator rises off seat with parking brake disen-
gaged.
Test 4 — Blade Brake Check
Mower blades and mower drive belt should come to a
complete stop within five seconds after electric PTO
switch is turned off (or operator rises off seat). If mower
drive belt does not stop within five 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.
7
Features & Controls