Donaldson Dust Collector DFPRE4 SPKTRP

Warning: This inspection requires trained personnel with PPE!

Open valve at the bottom of the moisture separator bowl and allow collected water to drain off, then close valve.

Check the pressure drop across the filter by viewing the display on the front panel of the controller.

If pressure drop is excessive, refer to Table 1.

Record all pressure checks in a log book.

Sign off on the dust collector inspection

Remove and clean moisture separator filter element

Remove drain plug and air inlet connections from the compressed air manifold

Describe any accumulated sludge found

Remove a diaphragm valve for internal inspection purposes

Check all flameproof enclosures, motors, and cable glands for corrosion and tightness

Check collector earthing continuity

Check that measures taken to avoid ignition sources are still in place

Open the clean air chamber access cover and inspect the fan

Describe any residual dust accumulation found

Check general casing integrity and support structure

Describe any repairs or replacements made

Enter the fan assembly vibration level

Warning: Vibration monitoring is mandatory on category 2G, 3G, and 2D fan assemblies.

Is the vibration level in line with category BV-3, ISO 14694?

Were there any excessive vibration levels?

Describe the investigation and correction of excessive vibration levels

Sign off on the dust collector maintenance

1. Check dust seals on all access panels for damage or ageing and ensure they are properly seated to prevent entry of water. This is particularly important where the collector is located outside or in a wet atmosphere.

Note: Faulty seals must be replaced.

2. Check operation of solenoid and diaphragm valves. If it is found necessary to replace a diaphragm, refer to Valve Disassembly/Reassembly.

Warning: It may be necessary to check operation of the valves while the system is pressurised. Care should be taken to avoid injury.

Every two months check connected ducting. Repair any leaks as necessary.;

Warning: This maintenance check requires trained personnel with PPE!

Power to the collector and compressed air turned off?

Dirty Air Plenum access doors opened and set aside?

Filter cartridge cover removed and set aside?

Old cartridge slid out of the collector along the suspension yoke?

Old cartridge placed into a sealable bag and disposed of properly?

Sealing surfaces cleaned with a damp cloth?

New cartridge slid onto the suspension yoke?

Cartridge cover seal cleaned and cover replaced?