Recovery System290Service Manual – CS7000Circuit DescriptionThe following conditions must be met for the recovery system to operate:• The Hopper Interlock Switch S3 must be closed.• There must be positive voltage to the J7-1 Interlock Input. For this to happen:– The Seat Switch S9 must be closed.– The Safety Relay K14 on the Steer By Wire Controller A5 must energize the coil to close the Safety RelayK14 contactor.– The Emergency Stop Switch S15 must be closed.– The Battery Interlock S13 must be closed.• The 400-amp Fuse F1 must be closed to provide positive voltage from the Battery to the load side of AuxiliaryContactor K9.• The Ignition Switch S14 must be closed to provide positive voltage to the Auxiliary Contactor K9 coil. TheJ2-14 Output on the A1 Main Machine Controller provides ground to the Auxiliary Contactor K9 coil when theIgnition Switch S14 provides an input to the Key Switch Input J7-13.• The Auxiliary Contactor K9 must be closed to provide positive voltage to circuit breaker VACC1/CB1.• Circuit breaker VACC1/CB1 must be closed to provide positive voltage to the Vacuum Motor Contactor K6.• The J2-17 Output on the A1 Main Machine Controller must provide a ground to the Vacuum Motor Contactor K6coil. J2-17 provides ground to K6 under the following conditions:– The A1 Main Machine Controller must receive a signal from the A3 Control Panel via the CAN BUS that theoperator has pressed the scrub switch.– The A1 Main Machine Controller must receive a signal from the A2 Drive Controller via the CAN BUS thatthe machine is moving forward.– The voltage to J7-29 Vacuum Current Sense on the A1 Main Machine Controller from the Vacuum CurrentSensor B3 must be within the acceptable range to indicate both vacuum motors are working correctly.• The 150-amp Fuse F2 must be closed to provide positive voltage from the Battery to the load side of theVacuum Motor Contactor K6.• The Vacuum Motor Contactor K6 contacts must be closed.• The Vacuum Motors M6 and M7 must have connections to battery ground B-.
