26GDED-IOM-215-ARemove the used solenoids from within the solenoid box enclosure and replace themwith new items if required.NOTE: AAF recommends having a spare set of diaphragm and solenoid kits availableat all times.Inspect all gaskets and panels for possible leak points. Replace gaskets and re-caulkpanels as necessary.12.5 Cartridge removal and installationTurn the pulse controller on so that at least one complete pulse cycle is initialized(i.e. every cartridge has been pulsed at least once). This will ensure optimum safety andease for cartridge replacement.Disconnect power and lock out any electrical power sources before servicing.CAUTION: Dirty cartridges may be heavy, use caution when removing the cartridgesfrom the dust collector.Do not operate the dust collector with missing or damaged cartridges.The working area requires good ventilation. Some applications involve hazardousgasses and dusts. Check with an authorized person before work commences to avoidexposure to hazardous substances. Appropriate PPE should be considered and worn.In order to minimize escape of dust particles which have been deposited in thecartridges, it is recommended the used cartridges are placed into polyethylene sacks asthey are withdrawn from the unit for ultimate safe disposal.Replace the cartridges on the top row first, making your way down the collector. Thiswill help dust from bypassing into the clean air plenum and reduce dust collecting on newcartridges.Procedure:1. Ensure that protective personal equipment (PPE) is worn, which may include,but not limited to, protective clothing, breathing masks or breathing apparatus, head,hand, eye and ear protection, approved footwear.