Operator Presence And Safety Interlock System - Ransomes Highway 3 Safety, Operation & Maintenance Manual

7.2 OPERATOR PRESENCE AND SAFETY INTERLOCK SYSTEM _________________

1. The operator presence & safety interlock system prevents the engine from starting unless the parking
brake is on, and the mowing device is switched off. The system stops the engine if the operator leaves the
seat with the parking brake disengaged. If the operator leaves the seat with the mowing device engaged
and the parking brake on the mowing device will stop.
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 not start in test 1;
• The engine does start during tests 2 or 3.
• The engine continues to run during test 4.
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 on, 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: Start the engine in the normal manner, then turn mower engage device on and lift your weight off
the seat. -
Test
1
2
3

Lift your weight off the seat. The cutting units must stop rotating within seven (7) seconds
Never Operate The Equipment With The
Operator Presence & Safety Interlock
System Disengaged Or Malfunctioning.
Do Not Disconnect Or Bypass Any
Operator Seated Parking Brake
Switch
Yes No On
 
 

 
WARNING
Switch.
Mower Switch
Off On Off



7 OPERATION
Engine Starts
Yes No



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