• General Maintenance
    Maintain daily pressure drop readings on graph
    Keep bag location replacement chart
    Watch for consistent bag failures and retain typical bag for inspection
    Retain bags that have unusual or noncharacteristic failures
    Maintain an adequate supply of bags, cages and Diffusers to avoid costly production delays
  • Daily Maintenance
    Check pressure drop across baghouse
    Check header air pressure
    Drain header
    Check air lock for operation and leaks
    Rap hopper with rubber hammer to avoid bridging and build up
    Visually inspect stack
    Check temperature gauges (know bag limitations: temperature)
  • Weekly Maintenance
    Inspect tubesheet for dust accumulation, corrosion and evidence of condensation
    Visually inspect bags for blinding, leakage and wear. When possible perform Trace-It leak detection test
    Check timer control for operation and proper pulse sequence and duration
    Clean pressure gauge taps with compressed air
    Check foundation bolts, housings and belts on fans and motors
    Check inlet air flow into baghouse
  • High Collector Pressure Drop
    Possible Cause Solution
    Malfunction of bag cleaning System Check all cleaning system components
    Ineffective cleaning Modify cleaning cycle
    Re-entrainment of dust in collector due to low density material or inleakage at discharge Check discharge valves Lower A/C Ratio
    Wetting of bags Control dew point excursions
    Dry bags with clean air
    Clean bags or replace
    Too high A/C ratio Verify gas volume
  • Abnormally Low Pressure Drop
    Possible Cause Solution
    Lines(s) plugged Blow back thru lines
    Protect sensing point from dust or water build-up
    Incorporate auto-purging system in sensing lines
    If copper lines – air purge them yearly – could get moisture trapped
    Manometer line(s) broken or uncoupled Inspect and repair
  • Stack Emission
    Possible Cause Solution
    Bag permeability increase Test bag
    Check cleaning energy/ cycle and reduce if possible
    Clean to dirty plenum leakage Inspect and repair
    Change of inlet conditions Test & Review
  • Puffing Back
    Possible Cause Solution
    High pressure drop across the bag house See “High Collector Pressure Drop” above
    Low system fan speed Check drive system increase speed
    Improper duct balancing Rebalance system
    Plugged duct lines Clean out
    Poor hood design Evaluate temporary modifications and implement
  • Low Dust Discharge
    Possible Cause Solution
    Inleakage at discharge points Inspect and repair seals or valves
    Malfunction of discharge valve, screw conveyor or material transfer equipment Inspect and repair
    Re-entrainment of dust with in collector Check for leaks at discharge or hopper
    Retainment of dust on filter bags Increase cleaning
  • Corrosion
    Possible Cause
    Improper paint material or Application
    Improper insulation
    Emission of nearby equipment
    Dew point excursions
    Improper shutdowns
  • Loud or Unusual Noises
    Possible Cause
    Vibrations or banging of moving parts
    Squealing of belt drives