Using a stiff brush, for example, a toothbrush,remove any build up of grease, wax, dust, anddirt. Also remove a similar build up within theblower housing itself.4.Clean the ventline elbownext to the unit, firstby removing the elbow and then cleaning withwarm soap water or a stiff brush.5.The interior of the housingshould be cleanedevery 90 days of bits and pieces of paper whichfall to the exterior of the incinerator chamber. Todo this, remove the four screws holding the topand bowl, then lifting the top section out of theway, thereby exposing the interior of thehousing. Remove the paper pieces.PARTS REPLACEMENTBefore replacing any part or making any continuitymeasurements, voltage must be removed from the unit.Remove ashpan.Remove top and bowl section.For electrical parts inspection, remove the cover fromthe control box. All electrical parts are accessible.Inspect for loose wiring or wiring harness holding therelay closed.HEATER REPLACEMENT.Disconnect the terminals of the heater leads by firstremoving the hex locknuts. Carefully remove theasbestos sealing rope about the heater cold endscoming through the wall of the incinerator chamber asthis packing rope will be reused. Remove the 1/4 inchbolts holding the heater brackets in place so that thebrackets and heater are now free to be removed throughthe front of the incinerator chamber. Install the newheater in exact reverse order.CAUTION: When replacing the hex locknuts on theheater terminals, use two end wrenches, one for thelocknut and one for the terminal stud coming fromthe heater. Be sure that the locknut is tightagainst the terminal without twisting the heater studand breaking the seal of the heater.Good practice is to replace the control thermostat(L-290) along with a new heater in order to insure properincineration control.THERMOSTAT REPLACEMENTBoth control thermostat (L-290) and blower thermostat(F-140) are located in the lower portion of the incineratorchamber to the rear of the ashpan. Both are replacedfrom the back by removing two screws. Replacementthermostats are furnished with the necessary wiring andterminals. When replacing thermostats make certain touse the same number of gaskets under the mountingflange.CATALYST REPLACEMENTThe catalyst inspection port, located at the upper rearportion of the incinerator chamber, is closed by means ofan asbestos rope. To inspect the level of catalyst,remove the rope. If the level of the catalyst is quite low,say 1 inch or more below the level of the top of the port,fill the port with replacement catalyst, working it to theleft and right beyond the extremes of the port by meansof a screwdriver to insure that all parts of the catalystcontainer are full of the catalyst. Use sufficient catalystto fill all parts as well as the port itself to within about 1/4of an inch of the top of the port. Then replace theasbestos rope, packing it securely in place.6
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
