Mechanism
Lubrication
Proper Lubrication Times Per Rating
RATINGS
OPERATIONS
29kA and below
Above 29kA
3000 Amp
750
400
400
150VCP-W Mechanism Lubrication
All parts that require lubrication have been lubricated
during the assembly with molybdenum disulphide
grease. Eaton No. 53702AM. Over a period of time,
this lubricant may be pushed out of the way or degrade.
Proper lubrication at regular intervals is essential for
maintaining the reliable performance of the mechanism.
The circuit breaker should be relubricated once a year or
per the operations table, which ever comes first with a
non-synthetic light machine oil.
After lubrication, operate the circuit breaker several
times manually and electrically.
Roller bearings are used on the pole shaft, the cam
shaft, the main link and the motor eccentric. These
bearings are packed at the factory with a top grade slow
oxidizing grease which normally should be effective for
many years. They should not be disturbed unless there
is definite evidence of sluggishness, dirt or parts are
dismantled for some reason.
If it becomes necessary to disassemble the mechanism,
the bearings and related parts should be thoroughly
cleaned, remove old grease in a good grease solvent.
Do not use carbon tetrachloride. They should then be
washed in light machine oil until the cleaner is removed.
After the oil has been drawn off, the bearings should be
packed with Eaton Grease 53702AM or equivalent.
8
EATON
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Visual Instruction Booklet Essentials | 150VCP-W 25kA 1200A | January 2017
