Operator Interlock System - Jacobsen JMP653F Manual

6 OPERATION
6.2 OPERATOR PRESENCE AND SAFETY INTERLOCK SYSTEM _________________
1. The Operator Presence And Safety Interlock System will not allow the engine to start unless the
operator is sitting in the seat, the parking brake is engaged and the cutter switch is disengaged. The
system stops the engine if the operator leaves the seat with the cutters engaged.
Do Not Operate The Equipment With The Operator Presence And Safety Interlock System Disengaged
Or When The Equipment Has Defects. Do Not Disconnect Or Bypass Any Switch.
2. Do each of the tests as shown below, to make sure that the Operator Presence And Safety Interlock
Systems operates correctly. If any of the tests fail, stop the test and have the system inspected and
repaired.
• The engine will start in test 1;
• The engine does start during tests 2 to 4.
• The engine continues to run during test 5.
3. Refer to the chart below for each test and follow the check () sign across the chart. Turn off the engine
between each test.
Test 1: Shows the normal start procedure. The operator must be in the driver seat and the cutter switch
disengaged and the park brake switch on. The engine must start correctly.
Test 2: The engine must not start if the cutter switch is engaged.
Test 3: The engine must not start if the park brake is off.
Test 4: The engine will not start if the operator is not in the seat.
Test 5: Start the engine with the normal procedure, then turn mower engagement device on and move your
weight from the seat.
Test Operator in the
Yes
1

2

3

4
5


Remove your weight from the seat. The cutting units must not rotate after three (3) seconds
en-54
Parking Brake
seat Engaged
No Yes


 
 
WARNING
Cutter Switch
No On



Engine Starts
Off Yes
 



No


