Operation; Daily Inspection; Interlock System - Jacobsen LF 550 Serie Manual De Instrucciones

5

OPERATION

5.1

DAILY INSPECTION ________________________________________________________

!
CAUTION
The daily inspection should be performed only when
the engine is off and all fluids are cold. Lower mowers
to the ground, engage the parking brake switch, 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
5.2

INTERLOCK SYSTEM ______________________________________________________

1. The interlock system prevents the engine from starting
unless the parking brake switch is Engaged, the traction
pedal is in Neutral, and the mow switch is OFF. The sys-
tem also stops the engine if the operator leaves the seat
with the mow switch ON, traction pedal out of Neutral,
or parking brake switch is 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
fail as listed below:
the tests
the engine does not start in test 1;
?
the engine does start during tests 2, 3, or 4;
?
the engine continues to run during tests 5 or 6.
?
Test
Operator
Seated
Yes No
1 4
2
4
3
4
4 4
5 4 H
6
4 H
H Lift your weight off seat. The engine must shut down and cutting units must stop rotating within seven (7) seconds.
WARNING
Interlock System Check
Parking
Brake Switch
Engaged Disengaged
4
4
4
4
connections are tight and hoses and tubes are in good
condition.
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 mowers are adjusted to the same cutting
height.
4. Visually check tires for proper inflation.
5. Test the interlock system.
3. Refer to the chart below for each test and follow the
check ( ) marks across the chart. Shut engine off
4
between each test.
Test 1: Represents normal starting procedure. The
operator is seated, parking brake switch is Engaged,
the operator's feet are off the pedals, and the mow
switch is OFF. The engine should start.
Test 2: The engine must not start if the mow switch is
ON.
Test 3: The engine must not start if the parking brake
switch is Disengaged.
Test 4: The engine must not start if the traction pedal is
pressed.
Test 5: Start the engine in the normal manner then turn
mow switch ON and lift your weight off the seat. H
Test 6: Start the engine in the normal manner then
disengage parking brake switch and lift your weight off
the seat. H
Traction Pedal
in Neutral
Yes No
4
4
4 4
4
4
4 4
OPERATION
Mow Engine
Switch Starts
On Off Yes
4 4
4
4
4
4 H
4 H
5
No
4
4
4
25