Cleaver Brooks FLX 750-177 R6 Mainteance


Cleaver Brooks FLX 750-177 R6 Mainteance


    A well-planned maintenance program will help to avoid unnecessary downtime or costly repairs, promote safety, and aid boiler inspectors in performing required periodic inspections. An inspection schedule with a listing of procedures should be established.

    WARNING: Shut off electrical power to the boiler when performing any service or maintenance work or work that requires removal of covers or component parts. Failure to heed this warning could result in electrical shock, serious personal injury or death.

    WARNING: Inspection and maintenance should be performed only by trained personnel who are familiar with the equipment. Failure to heed this warning could result in serious personal injury or death.


    Note: Cleaver-Brooks genuine parts should be used to ensure proper operation and to avoid damage to the equipment.


    WARNING: To avoid the hazard of electrical shock, which could cause serious personal injury or death, the use of a low voltage flashlight Is recommended when working Inside the boiler furnace area.


    Figure 7-1 Gasket application to inner casing


    Relief Valves

    ! WARNING: Improper removal, handling or installation of a relief valve may adversely affect the valve's operation, resulting in serious personal injury or death.

    Observe the following precautions when removing, handling or installing relief valves.

    WARNING: Only properly certified personnel such as the relief valve manufacturer's representative should adjust or repair the boiler relief valves. Failure to heed this warning could result in serious personal injury or death.

    Low Water Controls (Hot Water)

    WARNING: Safe operation of your boiler demands periodic inspection and maintenance of all low water cutoff devices. If controls do not shut off the burner when the water level drops below the safe operating level, or if controls appear in poor physical co

    Low Water Controls (Steam Boilers)

    CAUTION DANGER: If a control does not break the circuit to stop the burner at the proper point then shut down the burner immediately. Failure to do so may result in damage to the equipment.

    Water Gauge Glass

    Electrical Controls

    Flame Safeguard Control

    Note: NOTE: Be sure that the connecting contacts on the control and the base are not bent out of position.

    WARNING: When replacing a control, be sure to lock out the main power supply, since the control is “hot” even though the burner switch is off. Failure to heed this warning could result in serious personal injury or death.

    Checking Loss of Flame


    Strainer Servicing

    DANGER: Use only safety type solvents such as Cleaver-Brooks “Safety Solvent” for cleaning strainers or other components. Work only in a well ventilated area. Do not use gasoline or other flammable liquids as a solvent. Do not dry the strainer elements wi


    Solenoid Valves

    WARNING DANGER: Be sure to disconnect the main power supply to the boiler in order to prevent the possibility of electrical shock, which could result in serious personal injury or death.



    Burner Door

    WARNING :Disconnect main power to the boiler and the pilot fuel supply to the burner before the burner door is opened. Electrical power and fuel supply must remain shut off at all times when the burner door is open. Failure to heed this warning could resu

    Drum Seals

    Sight Port

Source: Cleaver Brooks

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