5-2 l Mai nte na nc e
Preventative Maintenance
Checklist
Routine maintenance will ensure optimum operation and performance of the
MDCW Dryer and the receiver on the hopper. We recommend the following main-
tenance schedule and tasks.
• Whenever you change materials
❒
Drain and clean the hopper.
• Weekly, or as often as needed
❒
Clean or replace the process, regeneration and conveying filters.
You may need to clean filters more often than weekly. Frequency
depends on how much material you process and how dusty or full of
fines it is.
❒
Inspect hoses and hose connections.
Check for damage, kinks, or loose hose clamps. Replace any hoses that
show signs of damage or wear. Reposition and tighten loose hose clamps.
❒
Clean and check the filter for clogging or holes.*
Replace if necessary.
❒
Drain the compressed air filter trap (if equipped).*
Depending on your compressed air system, you may see moisture or
oil in the compressed air filter trap. Open the petcock on the bottom of
the trap to drain.
• Monthly
❒
Clean the aftercooler and/or optional precooler coils.
You may need to clean the coils more often than monthly. Frequency will
depend on the type and volume of material you process.
❒
Check the seals of the vacuum sequencing valve, optional ratio valve
and discharge valve pan*
*Procedures marked with an asterisk are steps to follow for the receiver located on top
of the hopper.
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