RENEWAL OF GREASE WITHOUT
should remain in the custody of the responsible
maintenance personnel.) Make sure the grease cups are
DISASSEMBLING THE BEARING HOUSING.--
clean. After the grease is added, clean the pipe plugs
Do not try to add new grease without at least partially
before replacing them.
disassembling the bearing housing unless the following
conditions exist:
The preferred method of adding grease calls for
The machine is horizontal. There is no adequate
disassembly of the bearing housing. Although not
recommended, renewing the bearing grease without at
means of protecting the windings against
least partially disassembling the housing may be tried
displaced lubricant in vertical machines.
under certain conditions (given later).
A suitable fitting is provided for admitting
RENEWAL OF GREASE BY DIS-
grease. If a grease-gun fitting is provided, it
ASSEMBLING THE BEARING HOUSING.-- The
should be replaced by a grease cup when you add
extent of disassembly necessary will depend on the
grease.
construction of the bearing, Bearings with outer bearing
The drain hole on the bearing housing is
caps should be disassembled as described in table 7-1:
accessible. Drainpipes do not permit satisfactory
Table 7-1.--Renewal of Grease by Disassembly of the Bearing
escape of displaced grease, and should be
Housing
removed when renewing grease.
The machine is running continuously while
removing grease. If the machine cannot be run
continuously during the greasing period without
injuring the driven auxiliary or endangering
personnel, the bearing housing must be
disassembled to renew the grease.
If one or more of the above conditions exist, renew
the grease in assembled bearing housings by the method
in table 7-2:
Table 7-2.--Renewal of Grease in Assembled Bearing Housings
7-4
