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Note: Be certain the compressed air is off and the pressure relieved
before servicing any components that contain compressed air.
6. Follow the manufacturer’s maintenance schedule for the compressed air filters.
7. Tighten the couplings of the valves for the reverse jet pulse cleaning.
8. Remove any moisture that has accumulated in the compressed air manifold and
accumulator.
9. Inspect and clean diaphragm valves. A thorough cleaning normally rectifies operational
problems with valves; however any worn or damaged parts are to be replaced. Use the
following procedure to inspect and repair valves:
A. Main Diaphragm
a. Switch off air supply and drain the system.
b. Unscrew the main diaphragm cover bolts and remove the valve cover.
c. Inspect the spring and diaphragm for dust and damage. Remove dust with water and
replace damaged parts with diaphragm repair kits for 1” or 1.5” valves.
d. Replace valve cover and valve cover bolts.
B. Solenoid Diaphragm
a. Switch off air supply and drain the system.
b. Unscrew the bonnet bolts and remove the bonnet.
c. Inspect the diaphragm for dust and damage. Remove dust with water and replace
damaged parts with diaphragm repair kit for 1” or 1.5” valves.
d. Replace the valve bonnet and valve bonnet bolts.
C. Solenoid Coil
a. Switch off air supply and drain system.
b. Apply proper voltage to the coil and listen for a pronounced “Click” as the pole
moves.
c. If a pronounced “Click” occurs and the valve does not function follow instructions
for replacing the main diaphragm and solenoid diaphragm.
d. If the “Click” is not heard, replace the solenoid with either a part for the 1” valve or
for the 1.5” valve.
10. Check and replace if necessary the access door gaskets and dust drawer gaskets if
applicable.
Cartridge Filter Replacement
Note: Depending on the contaminant being collected, it is advised to wear a
dust respirator when handling dirty filters.
Turn the “T” handles counter-clockwise until clearance is obtained above the cartridge filter.
Remove top cover from top of filter. Slide plastic bag over filter and pull it down to cover top
filter and remove. Cover the bottom filter with a plastic bag and remove. Repeat this with all
filters.
