BI620968
Operation____________________________________________________ Conveyor (s) Perform daily start-up procedure (see Start-up procedure in this chapter). The conveyors are controlled hydraulically, there are two (2) conveyors, one on the feeder breaker and one on the discharge boom. The conveyor on the feeder breaker is controlled by the 200 hp crusher motor and the discharge boom conveyor is controlled by the 75 hp remote power unit motor. The conveyor (s) may be started utilizing the conveyor direction and speed control valves located on the left side of the machine (Fig. 20). The running speed of the conveyor (s) is controlled by a pressure reducing valve located beside the conveyor direction control valve (Fig. 20). To increase conveyor speed, turn the adjustment knob clockwise (CW). To decrease conveyor speed, turn the adjustment knob counter-clockwise (CCW).
In the event the conveyor becomes jammed and it is necessary to reverse the chain, this may be done by changing the conveyor two position control valve from forward to reverse. IMPORTANT! If it is necessary to reverse the conveyor (s), it should be jogged only. Running the conveyor (s) in the reverse direction for a period of time with material in the hopper, will jam the conveyor (s) and it will be necessary to empty the machine hopper before the conveyor (s) will restart. Fig. 20: Conveyor control levers
Conveyor speed pressure gauge
Conveyor speed and direction control valves
_________________________________________________________________ DBT – Model 7MFBH-48A Feeder Breaker 5.14
© DBT AMERICA 2007
There is a timer on the circuit which in “AUTO” mode only allows the conveyor to run for a preset time (3 minutes) then times out. If during this time a start button is engaged the timer is reset back to zero and the timer starts timing again.
