2.2 Monthly Checklist The following items require attention on a monthly basis:
1. Check air proving switch settings. Checking switch movements against pressure settings and comparing with actual impulse pressure should test the pressure switch settings.
2. Inspect all electrical components, connections and wiring. Clean, repair or replace as necessary.
3. Test high limit and safety shutoff valves, making sure that the instrument drives in the proper direction. Adjust or replace as necessary.
4. Check ventilation and ductwork systems for cleanliness and flow restrictions. Clean, repair or replace as necessary.
5.
Test the main fuel hand valves for operation. Replace as necessary.
6.
Inspect burners and pilots. Clean or repair as necessary.
7. Inspect all gauges for proper settings. Adjust, repair or replace as necessary.
8. Check ignition cable and transformers for loose connections, cracked ceramic or discoloration. Repair or replace as necessary.
9.
Inspect all piping for leaks. Repair or replace as necessary.
10. Clean drippings from carts and floor regularly. Do not allow drippings to accumulate. The leading cause of oven fires is poor housekeeping.
11.
Clean ducts and exhaust plenums as necessary.
2.3 Semiannual Checklist The following items require attention on a semiannual basis:
1.
Blow dirt and dust from all blower wheels.
2. Lubricate motor bearings with 30 drops of SAE 20, non-detergent or electric motor oil.
3.
Inspect door gasket. Repair or replace as necessary.
4. Inspect exhaust vent stack and recirculation plenums for condensation and accumulation of combustible products. Clean if necessary.
5.
Lubricate fan bearings with one of the following lubricants.
Mobil Mobilith #22 Mobil Mobilith AW2 (preferred) Shell Dolium R Amoco Amdex #2
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