Recovery System295Service Manual – CS7000TroubleshootingNote: You can use the Service Mode to toggle the various system components on and off to check forfunction. Refer to the Control System/Service Mode section for information on how to enterand use the Service Mode.Problem Cause CorrectionNeither of the vacuummotors will run.An interlock is notclosed.Before you start troubleshooting the recovery system, check tomake sure:• The emergency stop switch (S15) on the Operator controlpanel is disengaged (rotate clockwise).• The safety relay from the steering system (K14) is closed.• The seat switch (S9) is closed.• The battery interlock proximity sensor (S13) is closed.• The A1 Main Machine Controller is receiving theappropriate signal from the A3 Control Panel via the CANBUS.The 150-amp Fuse(F2) is blown.Check the Fuse (F2) and replace if necessary.There is no voltage tothe K5 contactor coil.Check circuit breaker CB1 reset if necessary.The contactor K9 is not providing positive voltage to the K5contactor coil.1. Check the K9 contactor coil resistance. If the coilresistance is not 118 ohms ± 10%, replace the contactor.2. Check the continuity through contactor K9 with the coilenergized. If the contacts are open, replace the contactor.3. Check the J2-14 output from A1 Main Machine Controller.There is no voltage tothe vacuum motors.1. Check the K5 contactor coil resistance. If the coilresistance is not 118 ohms ± 10%, replace the contactor.2. Check the continuity through contactor K5 with the coilenergized. If the contacts are open, replace the contactor.There is an opencircuit in the vacuummotor wiring.Check the vacuum motor wiring and connections fromcontactor K5 to the motors, and the ground connections fromthe motors to battery ground. Repair as necessary.The vacuum currentsensor (B3) is notoperating correctly(generating a fault).Check the wiring and connections from the A1 Main MachineController to the vacuum current sensor and repair asnecessary.Check the +5V output from J7-24 and the ground output fromJ7-25 to the vacuum current sensor (B3) from the A1 MainMachine Controller.Check the input to J7-29 on the A1 Main Machine Controllerfrom the vacuum current sensor. If the output is not between2.5 and 4.7 volts, replace the vacuum current sensor.
