Donaldson Torit Dust Collector DLMV 4/7

Proper solenoid and diaphragm valve operation

Door seals condition and contact

Adjustments or replacements made to door seals

Clean-air plenum free of dust accumulation

Check surrounding filter bags for tears or loose seals

Sign off on the dust collector check

Isolate the compressed-air supply and remove and clean the filter.

Isolate the compressed air supply, remove the drain plug and air inlet connections and clean thoroughly.

Remove one or two filter bags and inspect for general condition. Replace if necessary.

Check that jet tubes are clean and the orifices are clear.;

Check the compressed air components

Drain moisture following the manufacturer’s instructions

Is the compressed-air supply ON?

Check the cleaning valves for leaks

Check the solenoid valves for leaks

Replace components as necessary

Remove nylon tubing by pushing inward on the fitting collar and withdraw the tubing.

Remove the hex-head set screws and washers securing the valve bonnet.

Check that the bleed-hole pin is not blocked.

Place the diaphragm over the bleed hole pin with the nylon sealing washer inside the valve throat.

Position spring, if equipped, inside the bonnet recess.

Replace valve bonnet with the spring over the diaphragm disk shoulder and bonnet over the bleed hole pin. Secure using the hex-head set screws and washers removed in Step 2.

Reconnect nylon tubing and secure.

Sign off on the diaphragm replacement

The Delta P Plus Control offers three filter cleaning options.

1. Differential Pressure Cleaning (DFF) - When the pressure drop across the filters reaches the control's High setpoint, the control closes an output relay allowing a sequential timer to trigger the cleaning valves. When the control senses that the pressure drop has decreased to the Low setpoint, the relay opens and the cleaning cycle stops. This sequence continues as long as the collector is in use, maintaining the pressure drop within a narrow range.

2. Downtime Cleaning (DTC) - The Delta P Plus Controller monitors the collection system. When the pressure drop exceeds the Low Pressure Off set point and then approaches zero again, the Delta P Plus Controller runs a delay timer to allow the blower to come to a stop and then engages the cleaning mechanism for a preselected time.

3. Combined Differential and Down Time Cleaning (ALL) - The Delta P Plus Control combines the two functions described above; maintaining the pressure drop in a narrow band and down time cleaning the filters when the collector is shut down. The down time cleaning function can be toggled On or Off from the keyboard.;