Domino's Pizza: Middleby Marshall PS555G Double Deck Conveyor Pizza Oven Monthly Maintenance Form

Pre-cleaning/service steps

• Switch off the oven and allow it to cool. Do NOT service the oven while it is warm

• Turn off the electric supply circuit breaker(s) and disconnect the electric supply to the oven

• If it is necessary to move a gas oven for cleaning or servicing, disconnect the gas supply before moving the oven

Monthly Maintenance Procedure

• Check that the oven is cool and the power is disconnected

• Remove the crumb trays and drive motor shroud from the oven

• Lift the drive end of the conveyor slightly, and push it forward into the oven. This removes the tension from the drive chain

• Remove the drive chain from the conveyor sprocket

• Slide the conveyor out of the oven, folding it as it is removed. Split-belt conveyors can only be removed from the end of the oven with the drive motor

• Remove the end plugs in the oven

• Slide the air fingers and blank plates out of the oven. As each finger or plate is removed, write a location code on it with a marker to make sure that it can be reinstalled correctly

• Disassembly the air fingers

• Clean the air finger components and the interior of the baking chamber using a vacuum cleaner and a damp cloth

• Reassemble the air fingers. Then, replace them in the oven, using the location code as a guide

• Replace the end plugs on the oven

• Reassemble the conveyor into the oven. If the drive sprocket was removed when installing the conveyor, replace it at this time

• Reattach the drive chain

• Check the tension of the conveyor belt. The belt should lift between 3-4'' (75-100mm). If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (right) end of the conveyor

• Replace the crumb trays and drive motor shroud