8.2 Maintenance work
8.2.1 Cleaning
To be performed by operator
C l ean line actuator:
1 Separate the device from the energy supply.
2 Clean dirty parts with a damp cloth.
Cleaning of emergency lowering device, quick adjustment
device:
1 Separate the device from the energy supply.
2 Clean emergency lowering mechanism or quick adjustment
device with a damp cloth and prophyl alcohol.
8.2.2 Inspections and readings
• Execution by professional electrician.
• The inspections and readings must be performed as stipulated by
the applicable standards and regulations. The list of the applicable
standards can be found in the appendix.
• The inspections must be documented († “Service Log”).
The external metal parts are not reliably connected with the projec-
tive conductor, with the exception of the external protective conduc-
tor connection. The separation/insulation takes place either through
a double or reinforced insulation or through an intermediate circuit
that is connected with a protective conductor within the housing.
A reading of the protective conductor resistance is therefore not
possible. Potential connections only take place by accident due to
metal parts that touch each other more or less forcefully.
Damage due to incorrect cleaning
Therefore:
• Do not use any aggressive cleaning agents. Water used for
cleaning including the chemical additives must be pH-neutral.
• Liquids must not touch the actuator during the retraction or
extension.
• Only use the auxiliary materials listed by the manufacturer.
• Emergency lowering mechanism for quick adjustment system
may not be treated with oil, grease or other lubricants.
• No steam jets or pressure washers may be used for cleaning.
• Other cleaning agents or cleaning devices may only be utilized
with the manufacturer’s approval.
CAUTION
Measuring of the protective
conductor resistance (MAX6)
72
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