Maintenance During Storage

DANGER

Hazardous voltage.

Can cause death, severe injury, or property damage.

Follow all safety rules.

DANGER

Rotating machinery.

Can cause death or severe injury. Follow all safety rules.

Sleeve Bearings

Per Chart 1, the motor shaft should be manually rotated by hand at about 30 rpm for 15 seconds or if power is available, the motor can be electrically bumped for 5 seconds;

 

Chart 1

STORAGE ENVIRONMENT

 

Shaft Rotation Frequency

INDOOR – WHOLLY CONTROLLED ATMOSPHERE

 

Every two (2) months

INDOOR – PARTIALLY CONTROLLED ATMOSPHERE

 

Once per month

OUTDOOR – INLAND DRY CLIMATE

 

Once per month

OUTDOOR – INLAND HUMID CLIMATE

 

Once per week

OUTDOOR – SALTY AND INDUSTRIAL ATMOSPHERE

 

Once per week

Tilting Pad Bearings

INDOOR STORAGE: Do not turn the shaft on motors with this type of bearing unless an external flood lubrication system is connected and in operation. If this system is not available, do not run the motor, but every three months, disassemble the motor for access to the bearings and coat the bearings and the shaft journal area with a rust-inhibiting turbine oil of the proper viscosity.

OUTDOOR STORAGE: The motor should not be stored outdoors.

Oil Lubricated Antifriction and Kingsbury Type Bearings

Every three (3) months, 3000-3600 RPM vertical motors with anti-friction bearings should be run for two minutes to recoat the oil-lubricated bearings. If the motor cannot be run, it must be partially disassembled to reach the bearings. Manually cover the bearing with a fresh coat of oil. The oil itself need not be renewed.

On 1800 rpm and slower speed vertical motors, the shaft should be rotated by hand every two (2) months. Turn it by hand at about 30 rpm for 15 seconds or if power is available, the motor can be electrically bumped for 5 seconds.

Grease Lubricated Anti-Friction Bearings

Per Chart 2, the motor shaft should be manually rotated by hand at about 30 rpm for 15 seconds or if power is available, the motor can be electrically bumped for 5 seconds;

 

Chart 2

STORAGE ENVIRONMENT

 

Shaft Rotation Frequency

INDOOR – WHOLLY CONTROLLED ATMOSPHERE

 

Every two (2) months

INDOOR – PARTIALLY CONTROLLED ATMOSPHERE

 

Every two (2) months

OUTDOOR – INLAND DRY CLIMATE

 

Once per month

OUTDOOR – INLAND HUMID CLIMATE

 

Once per week

OUTDOOR – SALTY AND INDUSTRIAL ATMOSPHERE

 

Once per week

Bearings should be regreased at one (1) year intervals while in storage. Refer to the lubrication plate on the motor for the amount of grease and the identification of the grease installed at the factory. Use the same or compatible grease.

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