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Chapter 7: Maintenance
7-1 Routine Maintenance
Cleaning Filters
Check the condition of the filter frequently until you can determine a filter-cleaning interval.
Units conveying dusty or fine materials need more frequent cleaning. Note that a clogged filter
can cause the discharge flapper valve to stay open, critically reducing overall system
effectiveness. The discharge flapper valve requires proper venting; a clogged filter prevents
proper flapper valve operation.
Replace the filter if it shows any signs of wear. You can obtain replacements and spares from
the manufacturer.
To gain access to the filter, release the cover latches and lift the hopper/lid assembly off,
grasping the lip of the cover.
! CAUTION
Do not lift the cover assembly by the motor, piping, or accumulator.
These components are not designed to support the assembly.
Checking Flex Hose for Wear
Worn hose reduces conveying rates. Check the hose regularly.
Inspect Material Discharge Valves
Look for signs of wear, improper operation, or material obstruction. Make sure that the flapper
discharge valve is secure and free from all obstructions.
Note:
SS/CS Series hopper loaders that convey very abrasive and/or
very dusty materials may require more frequent maintenance.