Dust Control/DustGuard
™
Systems 86Service Manual – CS7000
Circuit Description
The following conditions must be met for the DustGuard™ system to operate:
• The DustGuard™ system must be installed in the conguration menu.
• 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 Relay
K14
contactor.
– The Emergency Stop Switch S15 must be closed.
– The Battery Interlock S13 must be closed (battery machines) or jumpered (Diesel and LPG machines).
• The 400-amp Fuse F1 must be closed to provide positive voltage from the Battery to the load side of Auxiliary
Contactor K9
, and to the 10-amp circuit breaker CB5.
• The Ignition Switch S14 must be closed to provide positive voltage to the Auxiliary Contactor K9 coil. The
J2-14 Output on the A1 Main Machine Controller provides ground to the Auxiliary Contactor K9 coil when the
Ignition Switch S14 provides an input to the Key Switch Input J7-12.
• The Auxiliary Contactor K9 must be closed to provide positive voltage to circuit breaker VACC2/CB2.
• Circuit breaker VACC1/CB1 must closed to provide positive voltage to the Dust Control Motor Contactor K6
coil and the Shaker Motor M14.
• The J2-6 Output provides the negative ground to the Dust Control Motor Contactor K6 coil under the
following conditions:
– If the hopper is down:
◦ The A1 Main Machine Controller must receive a signal from the A3 Control Panel via the CAN BUS that
the operator has pressed the DustGuard™ spray switch (blue LED on).
◦ The A1 Main Machine Controller must receive a signal from the A2 Drive Controller via the CAN BUS
that the machine is moving forward or backward.
– If the hopper is up, the A1 Main Machine Controller must receive a signal from the A3 Control Panel via
the CAN BUS that the operator has pressed the DustGuard™ spray switch. Note that the seat switch
does not have to be closed.
• Circuit breaker CB5 must closed to provide positive voltage to the load side of Dust Control Motor Contactor
K6
.
• Dust Control Motor Contactor K6 must be closed to provide positive voltage to the Dust Control Motor M5.
• Dust Control Motor M5 must be connected to battery ground.
• Circuit breaker VACC2/CB2 must closed to provide positive voltage to the DustGuard Valve L2 and the
DustGuard Pump M22.
• The J3-13 Output provides the negative ground to the DustGuard Valve L2 and the DustGuard Pump M22
under the following conditions:
– The A1 Main Machine Controller must receive a signal from the A3 Control Panel via the CAN BUS that the
operator has pressed the DustGuard™ spray switch (blue LED on).
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