45
Maintenance
Inspection
• The motors are to be constantly monitored depending on the operating
conditions.
• Keep the motors clean and the venting openings free
(Î Section "Site", page 10)
Any national regulations valid for the maintenance/repair of electrical
equipment in areas subject to explosion hazards - e.g. in Germany the
Operational Safety Order, etc - are to be complied with.
During maintenance especially those parts on which the degree of protection
depends must be checked; these include, for instance, the integrity of the
lead-in components and gaskets.
Lubrication
Please note!
In order to avoid damage the bearings and grease must be
kept clean.
The deep groove ball bearings of motors up to frame size 280 are sealed on
both sides and filled by the bearing manufacturer with a grease which is
enough for normal operating conditions in 4 or multi-pole motors for 40000
operating hours or in 2-pole motors for 20000 operating hours.
When changing the bearings, change also the shaft seals. To do so,
dismount the motor so that the winding can be cleaned at the same time.
Disassembly and assembly as per the specific manufacturer repair
instructions.
Motors starting from frame size 315 and motors with reinforced bearings are
to be equipped with regreasing devices. The bearings are to be regreased
preferably with the motor running with a grease gun through the grease
nipples located over the bearing plates or bearing caps.
To Next Page
Loading...