Laserfiche WebLink
Microwave ovens have one capacitor located directly behind the control panel and <br />attached to the transformer. The casing of the microwave or front panel will have to be <br />removed prior to accessing the capacitor 16. <br />Fluorescent light ballasts (see Figure 7) are located in the housing of light fixtures. You <br />may have to unscrew the back panel to access the ballast16 <br />. <br />3.3 Does the Capacitor or Light Ballast Contain PCBs? <br />According to the United States Environmental Protection Agency (US EPA), PCB <br />capacitors are invariably enclosed in a sheet steel jacket (a magnet can distinguish <br />them). The soldering of the seams or a galvanized finish may also be useful in <br />distinguishing them from the non -PCB or electrolytic capacitors which are typically <br />encased in either a Bakelite or aluminum shell. The only appliances identified at the <br />time of the letter with a significant likelihood of containing a PCB -type small capacitor <br />are room and central air conditioners, heat pumps, furnace blowers, fluorescent lighting <br />ballasts, and microwave ovens. These units represent a relatively small percentage of <br />recycled "white goods" (approximately 5%). There is no evidence that small PCB <br />capacitors were used in household clothes washers, clothes dryers, dishwashers, hot <br />water heaters, garbage disposers, trash compactors, conventional ovens, ranges, or <br />stoves. There has been suggestions that some refrigerators and freezers contain PCB <br />small capacitors, but the use of PCB capacitors in these units were limited". <br />® A capacitor may have "No PCBs" stamped on its casing, or may have a 4 -digit date <br />indicating time of manufacture. Some appliance manufacturers and repair businesses <br />continued to use up stocks of PCB capacitors even after the 1978 ban on the production <br />of PCBs. Some appliances manufactured after the 1978 date could therefore contain a <br />PCB capacitor(s)Z'. It is anticipated that a majority of the stocked PCB capacitors were <br />depleted within one year of the ban. Foreign oil -filled small capacitors may also contain <br />PCBs despite Federal PCB restrictions16. <br />3.4 Capacitor I Ballast Removal Methods <br />Tools / Equipment Needed <br />The basic tools needed for removing capacitors are; 1) screwdriver, 2) nut driver set, <br />3) crescent wrench, 4) socket set, and 5) side cutters or wire cutters. <br />Capacitor Removal <br />Capacitors are easily removed by loosening or removing the clamp holding the capacitor <br />to the motor or bracket and cutting the wires from the capacitor terminals or removing <br />the wires from the terminals if the capacitor is discharged. In some cases, the capacitor <br />may be in a protective casing on the motor which needs to be removed first or the <br />13 <br />