1 minute read
Every 6 months .............................................................5
Maintenance
pressure filter The pressure filter is located on the right side of the machine at the secondary operator’s station (Fig. 49). The filter is monitored by the PLC and when it reaches a preset limit, an alarm will be displayed on the PLC view panel, located on the right side of the machine on the starter enclosure (Fig. 49). The alarm will display on the ‘MAIN SCREEN” and will read “PRESSURE LINE DIRTY FILTER”. When the alarm is displayed, the filter should be changed.
The return filter is located on the right side of the machine at the secondary operator’s station (Fig. 49). The filter is monitored by the PLC and when it reaches a preset limit, an alarm will be displayed on the PLC view panel, located on the right side of the machine on the starter enclosure (Fig. 49). The alarm will display on the ‘MAIN SCREEN” and will read “RETURN LINE DIRTY FILTER”. When the alarm is displayed, the filter should be changed.
return filter
Fig. 49: Pressure and return filter locations and PLC display
Return filter Pressure filter PLC display
breaker bits
Check the breaker bits (Fig. 50) to see if they will rotate in their holders and for damaged or missing bits. The bits may be inspected by looking into the receiving end of the machine. If bits need to be replaced, see Bit replacement in the Replacement of wear parts section of this chapter.
WARNING! Do not enter the hopper unless power center is locked and tagged out and machine main circuit breaker is in the “OFF” position. If these procedures are not followed, serious injury or death can result.
Fig. 50: Breaker bits
Breaker bits
