RPH DUST COLLECTOR
Page 7
5.0 PREVENTIVE
MAINTENANCE
WARNING
Make sure the following conditions are met
before performing any maintenance on the
collector.
•
Turn off compressed air supply and drain air
from pulse manifolds.
•
Turn off sequence control switch.
Failure to observe the above warnings could
result in serious injury from the sudden release
of trapped compressed air or the operator
loosing balance.
•
Always wear a properly fitted and
maintained, NIOSH approved respirator, eye
protection and safety clothing when
servicing dust laden areas of the dust
collector.
Failure to do so could result in serious eye
irritation and lung disease or death. Toxicity
and health risk vary with type of media, and
dust generated by blasting. Identify all material
that is being removed by blasting, and obtain a
materials safety data sheet for the blast media.
5.1 Daily
5.1.1
Empty dust drums.
NOTE: Check dust drums daily until the dust collection
rate is determined. At that time setup a program to
empty the drums before they are 2/3 full. Dust should
never accumulate in the hoppers.
5.1.1.1
Empty and/or replace the drums, ensuring that
the drum lids are secure.
5.1.2
Check the exhaust air during a pulse cycle.
5.1.2.1
If dust is emitting from the exhauster, filters are
leaking or damaged. Check immediately. To determine
which cartridge in leaking, turn the sequence switch off,
open the top access door and check the inside of the
collector for dust trails. NOTE: A small amount of dust
egress is normal for a short period when cartridges are
new.
5.1.3
Check the differential pressure gauge at least
once daily, and more often under dusty conditions. Turn
the sequence switch "on" or "off" as necessary to
maintain optimal differential pressure of 2" to 4". If the
reading is continually high (greater than 4"), adjust
pressure and/or sequence timing per Sections 4.1 and
4.2.
5.2 Weekly
5.2.1
Check the inside of the collector for moisture. If
moisture is caused by leaks, repair immediately.
5.2.2
Clean the differential pressure gauge in-line dust
filter located behind the gauge panel. See Figure 3.
6.0 SERVICE
MAINTENANCE
6.1
Replacing Filter Cartridge
WARNING
Make sure the following conditions are met
before performing any maintenance on the
collector.
•
Turn off compressed air supply and drain air
from pulse manifolds.
•
Turn off sequence control switch.
Failure to observe the above warnings could
result in serious injury from the sudden release
of trapped compressed air or the operator
loosing balance.
•
Always wear a properly fitted and
maintained, NIOSH approved respirator, eye
protection and safety clothing when
servicing dust laden areas of the dust
collector.
Failure to do so could result in serious eye
irritation and lung disease or death. Toxicity
and health risk vary with type of media, and
dust generated by blasting. Identify all material
that is being removed by blasting, and obtain a
materials safety data sheet for the blast media.
6.1.1
Lock out and tag out the compressed air supply
and electrical power.
6.1.2
Empty the dust receptacles.
6.1.3
Open the top access door.
6.1.4
Remove the wing nuts securing the filter hold-
down plate.
6.1.5
Remove the hold-down plates and venturi tubes.