Instruction/ maintenance manual of the product ML-052208 Vulcan-Hart
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VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791 – NOTICE – This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly qualified.
– 2 – TABLE OF CONTENTS GENERAL ............................................................................................................................... ................................. 4 Introduction ......................................
– 3 – Gas Valves, Tubing, Thermostats, Regulators and Solenoids .................................................................... 1 8 Burner Manifold Assembly (GHCB40) ............................................................................
– 4 – SPECIFICATIONS Gas Data Model Dimensions No. of Total Burners BTU Width Depth Height per /hr Section GHCB40 34” 39 1 / 8 ” 79” 4 100,000 GHCB44 34” 39 1 / 8 ” 79” 4 100,000 GHMCB.
– 5 – IMPORTANT STOP BOLTS MUST BE IN POSITION FOR SAFE OPERATION OF GRID. IF DAMAGED OR MISSING, REPLACE AT ONCE. DO NOT OPERATE GRID WITHOUT BOLTS. Two (2) broiler grid 1/4-20 stop bolts and nuts are supplied with each broiler grid to ensure that the grid is not accidentally pulled completely from the broil section while hot.
– 6 – REMOVAL AND REPLACEMENT OF PARTS COVERS, PANELS AND HANDLES Burner Box Cover (GHCB40, GHCB44, GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1 . Open the augratin oven door. 2. Remove the oven rack. 3. Remove the four screws and bushings from the oven.
– 7 – Manifold Cover Assembly (GHCB40 & GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Remove the grease tray from the broiler (GHCB40 only). NOTE: The GHIR44 manifold cover assembly has a chain to protect switch wiring. 2. Loosen the mounting screw in each burner knob.
– 8 – Control Panel Cover (GHCB40) 1 . Remove the manifold cover assembly as outlined in Manifold Cover Assembly. 2. Loosen the retaining screw and remove the burner knob from the broiler. 3. Pull the thermostat knob to remove it from the broiler.
– 9 – Oven Bottom Assembly (GHCB40) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Remove the lower front panel as outlined in Covers, Panels and Handles.
– 10 – Augratin Oven Bottom Assembly (GHCB40) WARNING: ALL GAS JOINTS DISTURED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Remove the four screws and brass bushings from the broiler.
– 11 – 2. Remove two screws and the oven door handle from the oven door. 3. Reverse the procedure to install. BROILER GRID TRAY (ALL MODELS) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Allow the broiler grids to cool. 2. Remove the two broiler grids from the broiler grid tray.
– 12 – 4. Remove the grid handle from the grid arm lifting assembly. 5. Remove two bolts, six washers and two nuts from the grid arm lifting assembly and the grid carriage assembly. 6. Remove the grid arm lifting assembly from the grid carriage assembly and the broiler.
– 13 – BURNER ASSEMBLY GHCB40 & HCB2(B) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Remove the burner ceramics as outlined under Burner Ceramics. 2. Remove burner box cover as outlined in Controls, Panels and Handles. 3. Allow the burner assembly to cool.
– 14 – HEAT SHIELD (GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Remove burner assemblies as outlined in Burner Assembly. 2. Remove the cotter pin from the shaft of the heat shield. 3. Remove the heat shield from the broiler. 4. Reverse the procedure to install.
– 15 – 4. Disconnect the burner tubing fitting from the sub-manifold assembly. 5. Loosen the two nuts on the sub-manifold assembly and the brackets. 6. Remove the sub-manifold assembly from the broiler. 7. Reverse the procedure to install. GHIR44 1.
– 16 – 5. Loosen the two nuts on the burner sub- manifold. 6. Remove the burner sub-manifold from the broiler. 7. Reverse the procedure to install. PILOT MANIFOLD (GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS.
– 17 – OVEN BURNER ASSEMBLY (GHCB40) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Remove the oven bottom assembly as outlined in Covers, Panels and Handles.
– 18 – GAS VALVES, TUBING, THERMOSTATS, REGULATORS AND SOLENOIDS Burner Manifold Assembly (GHCB40) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES).
– 19 – Burner Manifold Assembly (GHIR44) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Remove the manifold cover assembly as outlined in Covers, Panels and Handles.
– 20 – 2. Disconnect the oven burner valve from the oven gas supply tube and the union. 3. Reverse the procedure to install. Pilot Outage Protection Valve (GHCB40) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS.
– 21 – 6. Remove the two bolts from the pilot outage protection valve and the bracket. 7. Disconnect the pilot outage protection valve from the union and the thermostat. 8. Remove the pilot outage protection valve and the ignitor wire from the broiler.
– 22 – Oven Burner Nozzle (GHCB40) WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Remove the oven burner cover as outlined in Covers, Panels and Handles.
– 23 – Burner Valve (GHIR44) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES).
– 24 – Regulator [HCB2(B)] WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1. Disconnect the gas supply tube and the burner tube.
– 25 – LEVER ARM ASSEMBLY (ALL MODELS) Upper WARNING: SHUT OFF THE GAS BEFORE SERVICING. WARNING: ALL GAS JOINTS DISTURBED DURING SERVICING MUST BE CHECKED FOR LEAKS. CHECK WITH SOAP AND WATER SOLUTION (BUBBLES). DO NOT USE AN OPEN FLAME. 1 . Remove the grid carriage assembly as outlined in Grid Carriage Assembly.
– 26 – 3 . Remove the two cotter pins and washers from the lower lever arm assembly. 4. Remove the lower lever arm assembly from the two brackets. 5. Reverse the procedure to install. BLOWER AND MOTOR GHIR44 WARNING: SHUT OFF THE GAS BEFORE SERVICING.
– 27 – 8 . Disconnect the electrical wires. 9. Remove the blower and motor from the broiler. 10. Reverse the procedure to install. IR1 and IR2(B) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. WARNING: SHUT OFF THE GAS BEFORE SERVICING.
– 28 – Light (GHIR44) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE MACHINE AND FOLLOW LOCKOUT / TAGOUT PROCEDURES. WARNING: SHUT OFF THE GAS BEFORE SERVICING. 1. Remove the manifold cover assembly as outlined in Covers, Panels and Handles. 2. Note the location and connection of the electrical wires.
– 29 – PILOT ADJUSTMENT (ALL MODELS) 1 . Light the pilot as outlined under Lighting Pilot in the Installation and Operation manual for the appropriate model.
– 30 – BURNER SERVICE (ALL MODELS) WARNING: SHUT OFF THE GAS BEFORE SERVICING THE OVEN. If the burner ports become obstructed or the burner cracks, the burner will not operate properly. 1. Remove burner(s) as outlined under Burner Assemblies Section of this manual.
– 31 – TROUBLESHOOTING SYMPTOMS POSSIBLE CAUSES Uneven heating, sides burning. A) Temperature too low. B) Improper operation of broiler. C) Fluctuating gas pressure. Too much top heat. A) Temperature too high. B) Faulty ventilation. C) Excessive heat input.
– 32 – FORM 35608 (Aug. 2003) PRINTED IN U.S.A..
An important point after buying a device Vulcan-Hart ML-052208 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Vulcan-Hart ML-052208 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Vulcan-Hart ML-052208 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Vulcan-Hart ML-052208 you will learn all the available features of the product, as well as information on its operation. The information that you get Vulcan-Hart ML-052208 will certainly help you make a decision on the purchase.
If you already are a holder of Vulcan-Hart ML-052208, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Vulcan-Hart ML-052208.
However, one of the most important roles played by the user manual is to help in solving problems with Vulcan-Hart ML-052208. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Vulcan-Hart ML-052208 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
