Siemens SIMOTICS HV M, Руководство по эксплуатации

Страница: 94 / 136

Grease replacement intervals
The grease replacement intervals in these operating instructions or the regreasing intervals
indicated on the plate apply to the following conditions:
● Normal load
● Operation at speeds in accordance with rating plate
● Low-vibration operation
● Neutral ambient air
● High-quality roller bearing greases
In the case of unfavorable operating conditions, reduce the relubrication intervals after prior
consultation with the manufacturer.
Regreasing roller bearings
Pay attention to the instructions on the lubricant plate.
1. Rotate the shaft when regreasing, so that the new grease can be distributed throughout
the bearing.
Motors that are operated with converters: Regrease the bearings at a low to medium speed
(n
min
= 250 rpm, n
max
= 3600 rpm) to ensure an even distribution of grease.
WARNING
Rotating components
The shaft must rotate to allow the grease to be distributed. This can result in death, serious
injury or material damage.
● When regreasing, pay attention to all rotating components.
2. Clean the grease nipple before regreasing. Gradually press in an appropriate type and
amount of grease, as stamped on the lubricant plate and specified in these operating
instructions.
The roller bearing temperature rises sharply at first, then drops to the normal value again
when the excess grease is displaced out of the bearing.
3. The used grease collects outside each bearing in a spent grease chamber.
Lubricating roller bearings prior to commissioning
When properly stored prior to commissioning for a longer period of time, normally the grease
in the bearings does not deteriorate within two years. Please note the information regarding
long-term storage.
When commissioning, the bearings must be relubricated with twice the amount of lubricating
grease. When doing this, the shaft must rotate so that the grease is replaced in the bearings.
9.1.8 Removing spent grease
If the specifications on the lubricant plate are observed, the spent grease chamber will provide
capacity for a calculated service life of at least 40 000 operating hours, approx. five years.
When the spent grease chamber is full, the spent grease must be removed prior to
Maintenance
9.1 Inspection and maintenance
SIMOTICS HV M 1RN76308PR900CG0-Z
94
Operating Instructions 07/2018