ABB UniGear ZS1 - Page 126

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9. Maintenance
Repairs on withdrawable parts
When functional tests are carried out on
withdrawable parts, compliance with the
conditions listed below should also be checked.
The following operating instructions must also be
followed, together with this instruction manual in
the individual cases concerned:
• Vacuum circuit-breaker
• Vacuum circuit-breaker with magnetic
actuator
• Gas circuit-breaker
• Vacuum contactor
• Operating mechanisms of the circuit-
breakers with high voltage - catalogue
Apparatus in general:
• Follow the maintenance instructions in the
manuals for individual equipment
components.
• Check that the bolt connections at the
contact points in the busbar system and the
earth connections are tight, and that the
contact system functions correctly.
• Where necessary, grease slide plates and
bearings in the panel again or thoroughly
clean them. Then grease them again with
mechanical grease for moving parts
lubricant.
• Top up grease on contact areas in the contact
system when corroded or otherwise as
necessary, or, when lubrication is inadequate
or missing, thoroughly clean the areas
concerned and grease them again with
mechanical grease for moving parts
lubricant.
9.6 Risk-Based maintenance
ABB supports UniGear users with optimized and
cost effective strategies to ensure that the
correct actions are implemented at the right
time. Asset managers are fully supported in
moving from conventional approaches
(‘Corrective maintenance’ and ‘Preventive
maintenance’) to advanced strategies (‘Risk-
based maintenance’ and ‘Condition-based
maintenance’).
In this way, the service activity is no longer driven
by predefined timeframes, observations and past
experiences, but takes into account the actual
condition of the equipment, the required
reliability level and the expetation for life time
extension.
This assessment is performed by trained
technicians as part of risk-based maintenance
programs or is carried out automatically by on-
line monitoring systems for condition-based
maintenance solutions. Please refer to brochure
1VCP000427 - Maintenance by ABB for more
details on Risk-Based maintenance.
9.7 Spare parts, auxillary
materials and lubricants
Spare parts
A spare parts list is available on request for
procurement of spare parts. It basically includes
moving parts and parts subject to wear. When
parts are required, the serial number of the
relevant switchgear or switching device should
always be quoted.
Auxiliary materials, lubricants
• Lubricant - SYN-setral-EK 339
• DOW CORNING TORAY DC4 silicone grease
• Halogen-free cleansers (optional) - ETHANOL
F 25 M (for general cleaning)
• Touch-up paint (optional) - Standard colour
RAL 7035