Downdraft Bench, DB-800
8
Instruct all personnel on safe use and maintenance
procedures.
Use proper equipment and adopt
all safety precautions needed for
servicing equipment.
Use appropriate access equipment and
procedures. Note the standard collector is not
equipped with access platforms unless noted
on the specification drawings.
Electrical service or maintenance work must
be performed by a qualified electrician and
comply with all applicable national and local
codes.
Turn power off and lock out all power before
performing service or maintenance work.
Do not install in classified hazardous
atmospheres without an enclosure rated for
the application.
1. Monitor the physical condition of the collector and
repair or replace any damaged components.
Routine inspections will minimize downtime and
maintain optimum system performance. This
is particularly important on continuous-duty
applications.
2. Monitor pressure drop across filters.
Abnormal changes in pressure drop may indicate a
change in operating conditions and possibly a fault
to be corrected.
3. Monitor exhaust.
4. Monitor dust disposal.
Operational Checklist
Maintenance Information
Filter Removal and Installation
Use proper safety and protective
equipment when removing
contaminants and filters.
Dirty filters may be heavier than they appear.
Use care when removing filters to avoid
personal injury and/or property damage.
Turn power off and lock out all power before
performing service or maintenance work.
Do not operate with missing or damaged filters.
Filter Pack Maintenance
1. Clean the filters once each day depending on load
circumstances.
2. Shut off fan.
3. Allow fan to coast down.
4. Depress the cleaning pedal or handle.
5. Release to allow cleaning pedal or handle to drop
rapidly.
6. Repeat step 4 six to eight times.
7. Allow dust to settle.
8. Open filter access door and remove any dust which
has now accumulated in the dust drawer.
9. Close the filter access door.
10. A good practice is to clean filters at break, lunch,
and end of day.
