CHAPTER 5: PREVENTIVE MAINTENANCE AND TROUBLESHOOTING
5.1 Preventive Maintenance
Preventive Maintenance (PM) procedures are contained in McDonald’s Preventive Maintenance System Maintenance Requirement Cards (MRC) 12, 14, 14A, and 15. The cards are distributed with this manual, but are not an integral part of the manual. A replacement card set may be ordered using part number
In addition to maintenance referenced in MRC cards, Frymaster recommends that the fryer be inspected at least annually by a Factory Authorized Service Technician as follows:
•Inspect the cabinet inside and out, front and rear for excessive oil
•Verify that the heating element wires are in good condition and that leads have no visible fraying or insulation damage and that they are free of oil migration
•Verify that heating elements are in good condition with no carbon/caramelized oil
•Verify that the tilt mechanism is working properly when lifting and lowering elements, and that the element wires are not binding and/or chafing.
•Verify the
•Verify that the temperature and
•Verify that component box and contactor box components (i.e. computer/controller, relays, interface boards, transformers, contactors, etc.) are in good condition and free from oil migration
•Verify that component box and contactor box wiring connections are tight and that wiring is in good condition.
•Verify that all safety features (i.e. contactor shields, drain safety switches, reset switches, etc.) are present and functioning properly.
•Verify that the frypot/cookpot is in good condition and free of leaks and that the frypot/cookpot insulation is in serviceable condition.
•Verify that all wiring harnesses and connections are tight and in good condition.
•Inspect all