DRIVE GP-GOVERNOR & FUEL PUMP 1214699 - Caterpillar

switch inputs must be in valid states in order for the ECM to enable the starting of the machine.
switch (seat)
switch (armrest)The machine may be started once these conditions are met. The operator must remain in the seat with the armrest in the down position in order to enable the machine. The operator should then press the parking brake switch. Releasing the parking brake enables the hydrostatic system and the hydraulic interlock.Note: Raising the armrest and/or exiting the seat will cause the following conditions: a disabled hydrostatic system, a disabled hydraulic interlock and an engaged parking brake.The hydraulic lockout feature is enabled once the engine is started. If the hydraulic lockout switch is in the locked position, then the work tools will be locked out.