SET UP 3
13
3.2
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.
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:
O
the engine
does not
start in test 1;
O
the engine
does
start during tests 2 or 3;
O
the engine
continues
to run during tests 4 or 5.
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.
+
+
Lift your weight off seat. The engine will shut down.
WARNING
Never operate equipment with the Interlock
System disconnected or malfunctioning. Do not
disconnect or bypass any switch.
!
Interlock System Check
Test
Operator
Seated
Parking
Brake
PTO
Switch
Engine
Starts
Yes
No
Engaged
Disengaged
On
Off
Yes No
1
2
3
4
+
+
5
+
+
