Honeywell HON 673 - Preparing for Maintenance

Maintenance
HON 380 gas pressure regulator with HON 673/674 controller 40
8.2 Preparing for the maintenance
Proceed as follows:
Step Description Explanation
1 Have the mainte-
nance and servicing
parts ready
Please refer to Additional information regarding spare
parts (see page 67) to find out which bills of materials
correspond your specific gas pressure regulator model
and have the corresponding maintenance parts and ser-
vicing parts ready to go before maintenance.
 The spare parts that are always required for mainte-
nance of the regulator unit are defined in the regulator
unit spare parts kits.
 The spare parts that are always required for the con-
troller’s maintenance are listed in the spare parts kits
for the controller.
 Spare part drawings and bills of materials are listed in
the appendix (see page 67).
In addition to these maintenance parts, there are also
servicing parts that need to be checked during mainte-
nance in order to make sure that they are in working con-
dition. Depending on their condition, these must be re-
placed as needed. Because of this, it is recommended to
have the following servicing parts ready for maintenance
in order to avoid downtimes:
For the controller:
 Locking ring
 Balls
For the regulator unit:
 Nozzle assembly
2
Preparing special
tools
In addition to standard tools, have the special tools re-
quired for your specific gas pressure regulator model
ready to go before maintenance. Please refer to the Spe-
cial tools section in Lubricants, threadlockers, and special
tools (see page 78).
You will also need a magnetic bowl for the maintenance
of your controller to enable removal of the balls of the
guide sleeve.
3
Have the required
lubricants and
threadlockers ready
For specifications concerning the lubricants and thread-
lockers that must be used, please refer to the sections of
the same name under Lubricants, threadlockers, and
special tools (see page 78).
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