en-24
JACOBSEN G-PLEX III Series: FH & FJ
SAFETY AND OPERATORS MANUAL
7 OPERATION
7.2.1 OPERATOR PRESENCE AND SAFETY
INTERLOCK SYSTEM
1. The operator presence & safety interlock
system prevents the engine from starting
unless the parking brake is engaged, the
mowing device is off and the operator is in
the seat. The system also stops the engine if
the operator leaves the seat with the mowing
device engaged or the parking brake dis-
engaged.
2. Perform each of the following tests to ensure
the operator presence & safety 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 start in test 1;
• The engine does not start during tests 2 or 3;
• The engine Stops during test 4.
3. Refer to the chart below for each test and
follow the check (ü) marks across the chart.
Shut engine off between each test.
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1
99
9
9999
9
9999
9
9999
9
99
2
9
9
9
9999
9
9999
9
9999
9
99
3
99
9
9999
9
9999
9
9999
9
99
4
99
9
99
99
9
9999
9
99
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Never operate the equipment with the
operator presence & safety interlock
system disengaged or malfunctioning. Do
not disconnect or bypass any switch.
WARNING
7.2.2 CONTROLLER ERROR CODES
A. Power Indicator
B. Error Code Lamp
Error Flash
One flash - Seat, No Operator
Two flashes - Parking Brake Off
Three flashes - Reel Engaged
Test 1: Represents normal starting procedure.
The operator is seated, parking brake is
engaged, the operators feet are off the pedals
and the mower engagement device is off. The
engine should start.
Test 2: The engine must not start if the mower
engage device is on.
Test 3: The engine must not start if the parking
brake is not applied.
Test 4: Start the engine in the normal manner,
then turn mower engage device on and lift your
weight off the seat. -
X 1 =
X 3 =
X 2 =
4146700
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