SERVICE MANUAL
HEAVY DUTY GAS BROILER
MODELS
GHCB40
ML-052211
GHCB44
ML-052213
GHMCB44
ML-052214
HCB1
ML-052202
HCB2(B)
ML-052208
IR1
ML-052200
IR2(B)
ML-052201
GHIR44
ML-052210
GHCB40 SHOWN
– NOTICE –
This Manual is prepared for the use of trained Vulcan Service Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this product, you may be qualified to perform all the procedures
described in this manual.
This manual is not intended to be all encompassing. If you have not attended a Vulcan Service School for this product,
you should read, in its entirety, the repair procedure you wish to perform to determine if you have the necessary tools,
instruments and skills required to perform the procedure. Procedures for which you do not have the necessary tools,
instruments and skills should be performed by a trained Vulcan Service Technician.
Reproduction or other use of this Manual, without the express written consent of Vulcan, is prohibited.
For additional information on Vulcan-Hart Company or to locate an authorized
parts and service provider in your area, visit our website at www.vulcanhart.com
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791
FORM 35608 (Aug. 2003)

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Document Outline

• Table of Contents
  • GENERAL
  • Introduction
  • Installation and Operation
  • Cleaning
  • Lighting Pilot
  • Data Plate Location
  • GHCB40
  • GHIR44
  • IR1/2(B)
  • Specifications
  • Gas Data
  • Tools
  • Standard
  • IMPORTANT
  • REMOVAL AND REPLACEMENT OF PARTS
  • Covers, Panels and Handles
  • Burner Box Cover (GHCB40, GHCB44, GHIR44)
  • Burner Shield Cover [HCB2(B), IR1, IR2(B)]
  • Manifold Cover Assembly (GHCB40 & GHIR44)
  • Burner Knob Cover Plate [HCB2(B), IR1 and IR2(B)]
  • Control Panel Cover (GHCB40)
  • Lower Front Panel (GHCB40)
  • Oven Burner Cover (GHCB40)
  • Oven Bottom Assembly (GHCB40)
  • Augratin Oven Bottom Assembly (GHCB40)
  • Oven Door Handle (GHCB40)
  • Broiler Grid Tray (All Models)
  • Grid Carriage Assembly (All Models)
  • Burner Ceramics (GHCB40)
  • Burner Assembly
  • GHCB40 & HCB2(B)
  • GHIR44
  • Heat Shield (GHIR44)
  • Pilot Elbow Nozzle
  • Sub-Manifold Assembly
  • GHCB40
  • GHIR44
  • Burner Sub-Manifold (GHIR44)
  • Pilot Manifold (GHIR44)
  • Oven Burner Assembly (GHCB40)
  • Pilot Burner Nozzles (GHIR44)
  • Gas Valves, Tubing, Thermostats, Regulators and Solenoids
  • Burner Manifold Assembly (GHCB40)
  • Burner Manifold Assembly (GHIR44)
  • Oven Pilot Valve (GHCB40)
  • Oven Burner Valve (GHCB40)
  • Pilot Outage Protection Valve (GHCB40)
  • Thermostat (GHCB40)
  • Oven Burner Nozzle (GHCB40)
  • Burner Valve [(IR2(B) and HCB2(B)]
  • Burner Valve (GHIR44)
  • Regulator (GHIR44)
  • Regulator [HCB2(B)]
  • Solenoid (GHIR44)
  • Lever Arm Assembly (All Models)
  • Upper
  • Lower
  • Blower and Motor
  • GHIR44
  • IR1 and IR2(B)
  • Blower Switch (GHIR44)
  • Light (GHIR44)
  • Service Procedures and Adjustments
  • Gas Supply Checks
  • Regulator Adjustment (All Models)
  • Pilot Adjustment (All Models)
  • Burner Venturi Air Shutter Adjustment [GHCB40 and HCB2(B)]
  • Burner Service (All Models)
  • Burner Orifice Service (All Models)
  • Troubleshooting

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