4
OPERATION
4.1
DAILY INSPECTION ________________________________________________________
!
CAUTION
The daily inspection should be performed only when
the engine is off and all fluids are cold. Lower decks to
the ground, engage the parking brake, stop engine,
and remove ignition key.
1. Perform a visual inspection of the entire unit. Look for
signs of wear, loose hardware, and missing or
damaged components. Check for fuel or oil leaks to
ensure connections are tight and hoses and tubes
are in good condition.
4.2
INTERLOCK SYSTEM ______________________________________________________
1.
The Interlock System prevents the engine from start-
ing unless the parking brake is engaged and the PTO
switch is OFF. The system also stops the engine if
the operator leaves the seat with the PTO switch ON
or parking brake DISENGAGED.
!
Never operate equipment with the Interlock
System disconnected or malfunctioning. Do not
disconnect or bypass any switch.
2. Perform each of the following tests to insure the
Interlock System is functioning properly. Stop the
test and have the system inspected and repaired if
any of the tests fail as listed below:
the engine does not start in test 1;
the engine does start during tests 2 or 3;
the engine continues to run during tests 4 or 5.
Test
1
2
3
4
5
WARNING
Interlock System Check
Operator
Seated
Yes
No
Engaged
Lift your weight off seat. The engine will shut down.
2.
Check the fuel supply, radiator coolant level, crankcase
oil, and air cleaner indicator. All fluids must be at the
full level mark with engine cold.
3.
Make sure all decks are adjusted to the same cutting
height.
4.
Visually check tires for proper inflation.
5.
Test the Interlock System.
Note: For more detailed maintenance information,
adjustments, and maintenance/lube charts, see the
Parts & Maintenance manual.
3. Refer to the chart below for each test and follow the
check ( ) marks across the chart. Shut engine off
between each test.
Test 1: Represents normal starting procedure. The
operator is seated, parking brake is ENGAGED, and
the PTO switch is OFF. The engine should start.
Test 2: The engine must not start if the PTO switch is
ON.
Test 3: The engine must not start if the parking brake
is DISENGAGED.
Test 4: Start the engine in the normal manner then
turn the PTO switch ON and lift your weight off the
seat.
Test 5: Start the engine in the normal manner then
DISENGAGE parking brake and lift your weight off
the seat.
Parking
PTO
Brake
Switch
Disengaged
On
OPERATION
Engine
Starts
Off
Yes
No
4
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