Maintenance
HON 5020 gas pressure regulator with HON 630 pilot
46
8.2
Preparing for the maintenance
Proceed as follows:
Step
Description
Explanation
1
Have the maintenance
and servicing parts
ready
Please refer to
Additional information regarding spare parts
(see
page 92) to find out which bills of materials correspond your
specific gas pressure regulator model and have the correspond-
ing maintenance parts and servicing parts ready to go before
maintenance.
The spare parts that are always required for the actuator
assembly’s maintenance are listed in the spare parts kits for
the actuator assembly.
The bills of materials for the pilots are broken down by
maintenance parts and servicing parts.
The spare parts always required for maintenance of the travel
indication (optional) are defined in the list of maintenance and
servicing parts.
Spare part drawings and bills of materials are listed in the
appendix
(see page 92).
In addition to these maintenance parts, there are also servicing
parts that need to be checked during maintenance in order to
make sure that they are in working condition. and they must be
replaced if necessary. Because of this, it is recommended to have
the following servicing parts ready for maintenance in order to
avoid downtimes:
For the pilot:
Compression spring(s) and, if applicable, spring plates
Pressure gauge(s)
Filter insert
For the actuator assembly:
Closing spring
Flow restrictor
2
Preparing special tools
In addition to standard tools, have the special tools required for
your specific gas pressure regulator model ready to go before
maintenance. Please refer to the
Special tools
section in
Lubri-
cants, threadlockers, and special tools
(see page 113).
You will also need a ballpoint pen or felt tip marker to perform
maintenance on the pilot.
3
Have the required
lubricants and thread-
lockers ready
For specifications concerning the lubricants and threadlockers
that must be used, please refer to the sections of the same name
under
Lubricants, threadlockers, and special tools
(see page 113).
The maintenance instructions below are provided as examples for the various gas pressure
regulator models and versions. Use the bills of materials to make sure that you replace all the
maintenance parts relevant to your specific device model during maintenance.
Preparation work for
maintenance
Sample maintenance
instructions
