TORQUE CONVERTER GP 1T1040 - Caterpillar

NOTE B: Do Not Leave Starter Motor Engaged With Engine Running. Engines that have electric starter motor(s), or a DC actuated air starter motor, automatically disengage when crank termination rpm is reached. Positive (+) battery voltage is removed from the engine mounted or remote mounted starter controls when the normally closed crank termination contacts open. To perform test measurements, one of the methods that follow may be necessary to disengage the starter motor: 1. Disconnect wire at speed switch terminal ESS-12.2. Manually disengage by installing a toggle switch to control the electric starter motor magnetic switch (install the switch in series with the magnetic switch coil lead).3. Manually disengage by installing a toggle switch to control the air starter solenoid valve (install the switch in series with either of the solenoid valve leads). For wiring diagrams and schematics, make reference to Wiring Diagrams Section.Troubleshooting (Overspeed)
CHART A Troubleshooting (Crank Terminate)
CHART B Troubleshooting (Step Oil Pressure)
CHART C Troubleshooting (Reversal Detection)
CHART D