2.7 Proper Housekeeping In maintaining safe oven operation, it is important that proper housekeeping be performed at all times. Allowing varnish to build up in handling carts, for example, contributes to the maximum allowable solvent in the oven and could subsequently cause a fire or explosion. All drippings and combustible products should be cleaned regularly from handling carts and the oven interior. Certain applications cause flammable materials to accumulate in oven exhaust ducts. These items should be inspected and either cleaned or replaced as necessary. 2.8 Explosion Venting Doors and Hatches Most ovens include explosion relief doors or hatches to allow the oven to vent itself in the case of an explosion. These hatches or doors should not be obstructed. Operators should not stand near these openings. 2.9 Belt Guards This oven should not be operated if the guards over the moving parts have been removed. When purchased, all ovens include guards secured over all moving parts, i.e., conveyor belts and fan belts. Operators should turn off the oven and notify management if guards are not secured. Guards should be re- secured prior to returning the oven to operation. 2.10 High Voltage This oven operates on voltages high enough to cause physical injury or death. Only qualified personnel should service the oven or open the control panels or junction boxes. 2.11 Maintain Unobstructed Airflow In order to maintain a non-explosive atmosphere in the oven, it is important that the circulation and exhaust be unobstructed. Operators should load the oven in a manner that allows adequate air movement in the oven. 2.12 Fire Protection In accordance with NFPA 86, “Ovens containing or processing sufficient combustible materials to sustain a fire shall be equipped with automatic sprinklers or water spray.” Consult NFPA 86 for supporting details. Contact your local fire control specialist for assistance.
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