Donaldson Dust Collector DFEP8

Turn off collector and lock out all energy sources

Open the damaged filter access cover assembly by rotating the knob counterclockwise

Swing the filter access cover assembly to the open position

Remove the Access Cover Pin, Clevis, and E-Clip from the collector end of the access cover hinge assembly

Position the new filter access cover assembly and install the Access Cover Pin, Clevis, and E-Clip. Be careful to retain both the upper and lower Hinge Pin Shoulder Spacers

Swing the new filter access cover assembly closed and tighten the knob clockwise. After the knob has been hand tightened three turns, a tool assist may be used

Do not exceed 150 inch-pounds torque when securing the access cover to avoid damage to the filter or collector. The access cover is considered closed when it is seated and sealed against the filter housing to ensure a dust-tight seal

Sign off on the filter access cover assembly replacement

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

Open the filter access cover by rotating the knob counterclockwise

Swing the filter access cover assembly to the open position

Remove the filter. See Filter Replacement section

Open the control panel access door

Access and remove the six thread-forming screws securing the damaged venturi to the filter panel from the control panel access door

Remove the damaged venturi through the filter access door

Remove any residual silicone caulk adhering to the filter panel

Add silicone caulk to the filter panel side, side with holes, of the new venturi

Turn off the collector and lock out all energy sources

Open the filter access cover by rotating the knob counterclockwise

Swing the filter access cover assembly to the open position

Open the control panel access door

Locate and remove the nuts, fender washers, and star washers from the damaged yoke through the control panel access door

Remove the damaged yoke through the filter access door and remove remaining hardware from the damaged yoke

Place hardware, located on the filter side of the filter panel, onto the new yoke, including the nut, washer, and star washer

Insert the new yoke through the filter access door and insert ends through the corresponding holes in the filter panel

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