Argus 671020, Инструкция по эксплуатации, Страница: 31 / 47

Argus E25 MOD II - Operating Instructions
31
For work on the unit you need the follow-
ing tools:

Torque wrench to DIN EN ISO 6789

Hexagon keys to
EN ISO 4762/ISO 272

Open-ended spanners to
EN ISO 4762/ISO 272
The properties of the tools, such as the
size or measurement range, depend on
the type and size of unit.
Select tools suitable for the work to be
carried out.
For work on the actuator, it is necessary
to have sufficient working clearance. This
depends on the type of unit and the local
options fitted.
When necessary you must carry out the
following maintenance work:

Check that the unit operates correctly
if it is not in regular use.

Make a visual inspection of the cable
connection to the unit for porosity.

Check all adapter connections be-
tween the unit and the valve.

Check the unit’s end positions.

Clean the unit.

After 8000 switching cycles, the unit
must be checked by the manufactur-
er. Failure to do so invalidates the
flameproof approval.
Maintenance and part re-
placement
You can replace the following parts of the
unit if they are worn or damaged:
- limit switch plate as a sub-assembly
- timing belt
- brake
- motor
These components are available from the
manufacturer as spare parts. The spare
parts sets contain all parts necessary for
replacing that sub-assembly.
Please contact the manufacturer for
detailed information about spare part
sets.
To ensure that your enquiry is dealt with
as quickly as possible, please provide the
manufacturer with the following infor-
mation:

Unit type

Actuator order number

Serial number
For work on the unit you need the follow-
ing tools:

Torque wrench to DIN EN ISO 6789

Hexagon keys to
EN ISO 4762/ISO 272

Open-ended spanners to
EN ISO 4762/ISO 272
The properties of the tools, such as the
size or measurement range, depend on
the type of sub-assembly that has to be
replaced.
Select tools suitable for the work to be
carried out.
For work on the actuator, it is necessary
to have sufficient working clearance. This