SCULLERY EQUIPMENTYou must read the manufacturer’s instruction bookfor each machine and become familiar with all itsoperating characteristics and its basic design. Ifroutinely cleaned, descaled, and properly maintained,scullery machines will not have any problems. Butthese procedures must be done on time as specified bythe planned maintenance schedule or by themanufacturer’s manual. Any necessary repairs andparts replacement requests must be submitted by theresponsible division on Ship’s Maintenance ActionForm, OPNAV 4790/2K. Following this procedure andusing this form will provide you, as the maintenanceperson, a document of repairs and parts that failed.TROUBLESHOOTINGFrom time to time, you may be called upon to repairscullery machines that have become defective. Figures7-5 and 7-6 illustrate the types of scullery machines usedby the Navy. Some common difficulties, the usualreasons for their occurrence, and possible remedies forthose difficulties are listed in table 7-4.REPAIRS OR OVERHAULSScullery machines must be inspected by themaintenance personnel according to the PMS schedule.Listed here are some common inspections,maintenance, repairs, or overhauls you may encounterwith these machines. You should perform the following:1. Check the adjustment of tension on the conveyorchains if the machine is equipped with a conveyor. Ifthe chain is equipped with lugs, make sure the lugs onboth chains are directly opposite each other.2. See that the guide sprockets are properly locatedon their shaft so that the conveyor chain will rideproperly on the track assembly.3. Inspect the operation of the doors and make sureall the counterweights are properly attached and thedoors are held in the open position when raised.4. Check the operation of thermometers, pressuregauges, thermostats, and automatic mixing valves orboosters.5. Adjust the thermostat so that the machine willnot start up unless the desired temperature is reached.6. Inspect the pump packing and adjust asnecessary to stop leakage around the pump shaft.Figure 7-6.—Cutaway view of a double-tank automatic dishwasher.7-9
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