Areva HVX-E - Lubrication Instructions

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Warning!
Comply with safety pro-
visions (Chapter 1.5).
Warning!
Risk of injury:
Circuit-breakers and
drives must not be dis-
assembled for service and
maintenance work.
Important:
The following elements
must not be lubricated:
- Motor
- Electric releases
- Push switches
- Blocking coils
- Auxiliary switches
- Ball bearings
Important:
Only approved lubricants
may be used (section 9.2).
Preparation
Remove the withdrawable part from
the switchgear cubicle for inspection
(see instructions for the panel con-
cerned). Remove the cover plate of
the circuit-breaker drive and re-
mount the drive´s transport securing
device.
8.6 Lubrication instructions
Fig. 8.1
Circuit-breaker drive mechanism
High-pressure grease
Cryogenic grease
Lubrication points inside the circuit breaker´s drive
Silicon grease
Lubricant Symbol Lubrication points Lubrication procedure
Silicon grease
Drive: lever on plastic housing of spring charging
mechanism
Clean lubricating points using a lint-
free cloth or a soft paint-brush, if ne-
cessary using cleaning agent (use
sparingly, just moisten points of lubri-
cation).
Apply a thin coat of lubricant (using
e.g. a paintbrush).
Cryogenic grease
Drive: roller levers
High-pressure
grease
Drive: cam discs, cogwheels and other friction
points
Contact lubricant
Kontasynth
Moving contacts, earth bar