GB-18RANSOMES HR3806 Series: DZSAFETY AND OPERATORS MANUAL7 OPERATIONNever operate the equipment with theoperator presence & safety interlocksystem disengaged or malfunctioning. Donot disconnect or bypass any switch.WARNING7.3 OPERATOR PRESENCE AND SAFETY INTERLOCK SYSTEM1. The operator presence & safety interlock system prevents the engine from starting unless the parkingbrake is engaged, the mowing device is off and the operator is in the seat. The system also stopsthe engine if the operator leaves the seat with the mowing device engaged or the park brake notapplied or the emergency brake valve lever is operated.2. Perform each of the following tests to ensure the operator presence & safety interlock system isfunctioning properly. Stop the test and have the system inspected and repaired if any of the tests failas listed below:• The engine does start in test 1;• The engine does not start during tests 2,3;• The engine continues to run during test 4.3. Refer to the chart below for each test and follow the check tick marks across the chart. Shut engineoff between each test.Test1: Represents normal starting procedure. The operator is seated, parking brake isengaged, the operators feet are off the pedals and the mower engagement device is off. Theengine 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 park brake is not applied.Test 4: Start the engine in the normal manner, push speed governor into Cut position, engagemower switch on dash, engage cutting blades by depressing foot switch and lift yourweight off the seat.tseT rotarepOdetaeSgnikraPekarBdeilppAegagnEwoMhctiwSenignEstratSseY oN seY oN tuC -siDdegagnE seY oN1 99999 99999 99999 999992 99999 99999 99999 999993 99999 99999 99999 999994 99999 99999 99999 )7(nevesnihtiwgnitatorpotstsumstinugnittucehT.taesffothgiewruoytfiLsdnoces