Donaldson Dust Collector DFEP8

Afterfilters, commonly HEPA grade, can be employed to monitor primary filter performance. HEPA afterfilters will collect potential emissions from the primary filters. Should such emissions occur, the afterfilters will develop an increased resistance to airflow which can be monitored.

To replace the optional afterfilters on a DFEP:

1. Turn off collector and lock out all energy sources.

2. Remove the rear grated panel guarding the HEPA panel filters from accidental contact.

3. For each afterfilter, loosen the black three-lobe knobs so the hold down tabs can be rotated down and out of contact with the afterfilter frame.

5. Install the new afterfilter with the gasket side toward the collector, making contact with the metal frame.

6. Rotate the hold down tabs so they make contact with the afterfilter metal frame and hand tighten the black three-lobe knobs.

Turn off the collector and lock out all energy sources

Close the compressed air shut-off valve and bleed pressure from the DFEP manifold

Remove the rear access panel of the DFEP. For collectors with optional afterfilters, remove the afterfilters

Locate and repair or replace the damaged valve

Re-install the rear access panel or afterfilters

Open the compressed air shut-off valve and re-pressurize the manifold

Sign off on the valve maintenance

Warning: Wear eye, respiratory, head, and other protection equipment suitable for the type of dust when performing any service activities.

Lock out all energy sources prior to performing any service or maintenance on the equipment.

Electrical service or maintenance must be performed by a qualified electrician.

Ensure the downtime cleaning cycle has ended (if equipped with a Delta P Plus controller)

Open the dust bin access door by rotating the two handles counterclockwise

Lift the dust bin locking bar up until the bar clears the top of the bin

Roll the dust bin from under the collector hopper

Transfer dust from the dust bin to a suitable disposal site

To replace a damaged fan or motor assembly:

1. Turn off the collector and lock out all energy sources.

2. Open the dust bin access door.

3. Remove the dust bin. If the collector has an extended capacity dust bin, skip to step 5.

4. Remove the lower hopper assembly:

a. Block up the sides of the dust bin assembly.

b. Loosen the lower hopper hardware, nuts and bolts, and remove the lower hopper assembly.

c. Remove all rope caulk from the hopper and lower assembly flanges to provide a clean surface when reinstalling.

d. Install a temporary guard over the hopper flange to prevent dust from exiting the hopper.

Warning: Most dusts present safety and health hazards that require precautions. Wear eye, respiratory, head, and other protection equipment suitable for the type of dust.

Warning: Dirty filters may be heavier than they appear. Use appropriate lifting methods to avoid personal injury and or property damage.

Turn off collector and lock out all energy sources.

Open a filter access cover by rotating the knob counterclockwise.

Slide the exposed filter cartridge out of the access port along the suspension yoke.

Remove the filter cartridge and dispose of properly.

Align the gasket end of a new filter cartridge on the end of the suspension yoke.

Slide the new filter fully into the collector along the filter suspension yoke.

Inspect and clean the access cover gaskets. Replace gaskets if they become worn or damaged.