www.geniecompany.com 08-12 1.1Section 1: How to use this manualSection 2Provides important defining information related to safety terminology used throughout this manual, aswell as safety related instructions which must be followed at all times while doing anysteps/tasks/instructions detailed in this manual.Section 3Details pre-installation concerns/issues/decisions that are recommended to be considered and/orresolved prior to beginning any commercial door operator installation.Sections 4-6Provide step by step installation and set-up instructions for the GCL-MJ&MH™ commercial door operator. Eachsection is written such that it must be followed in a step by step order to complete a successfulinstallation.Sections 7-8Detail important features and troubleshooting information for typical installation and normal operationsthat may occur.Sections 9-11Provide related information on service and maintenance items, operator drawings for use introubleshooting and service activities, along with important warranty and returned goods policyinformation.The 11 sections of this Installation Manual provide the information required to install,troubleshoot and maintain an GCL-MJ&MH™ commercial/industrial door operator.Failure to correctly perform all steps in sections 4-6 can result in serious injury or death.WARNINGFOR ASSISTANCE CALL 1-800-843-4084Medium Duty OperatorGCL-MJ&MH