Maintenance
9.2 Inspection and maintenance
1MB..5/6 shaft height 71 ... 355
112 Operating Instructions, 07/2020, A5E41926185A
9.2.8.5 Cleaning
Cleaning the grease ducts and spent grease chambers
The spent grease collects outside each bearing in the spent grease chamber of the outer
bearing cap. When replacing bearings, remove the spent grease.
Dismantle the bearing cartridges to replace the grease in the lubrication duct.
Cleaning the cooling air ducts
Regularly clean the cooling air ducts through which the ambient air flows.
The frequency of the cleaning intervals depends on the local degree of fouling.
Damage to the machine when cleaning with compressed air or water jets
• Do not direct compressed air or water jets in the direction of the shaft outlet or machine
openings.
• Avoid direct impact of compressed air and water jets on sealing elements of the machine.
Note
Please note the safety instructions for cleaning.
9.2.8.6 Maintenance and repair of machines with type of protection flameproof enclosure
Comply with special conditions for the use. (Page 17)
• Perform maintenance, repair and modification work on explosion-protected machines in
strict compliance with the corresponding national health and safety legislation, the safety
instructions and descriptions in the general maintenance instructions.
Have work influencing explosion protection solely performed by the manufacturer or by a
specialist workshop for electrical machinery authorized by the manufacturer. This includes
the following operations, for example:
• Repairs to the stator or rotor windings and to the terminals
• Repairs to the ventilation system
• Repairs to the bearings
• Dismantling machines with flameproof enclosures
• Connection work performed in the terminal box
Identify the work performed by an additional repair plate bearing the following information:
• Date
• Company carrying out repair
• Type of repair
• Reference number of the repair technician regarding repair work
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