Completing The Maintenance - Honeywell HON 512 User And Maintenance Manual

8.5

Completing the maintenance

Have the materials for
installing the operating
lines ready
Protecting the pipe con-
nections from being
twisted
Installing the operating
lines between the pilot
and the actuator assem-
bly
Pressurized parts
Tools and media for
internal leak test
Testing the gas pressure
regulator for internal
leaks
HON 512 with HON 650 pilot user manual
Prepare the following materials in order to install the operating lines between the pilot and
the actuator assembly:
▪ Pipes, connecting pieces, and fittings as per the specifications in the
Technical specifications (see page 22)
When conducting work involving the pipework, please always observe the following:
Figure
Proceed as follows:
Figure
Risk of serious injury posed by pressurized components moving in an uncontrolled manner
when handled improperly.
If not handled properly or in the event of a defect, gas can escape from pressurized compo-
nents under high pressure and cause serious injuries and even death. Before you start work-
ing on these components:
 Close all connections leading to the gas-carrying line.
 Establish a depressurized status. Residual amounts of energy must be depressurized as
well.
You will require the following tools and media:
▪ Testing device for an internal leak test with a bubble-tight sealing unit and pressure
measurements at the actuator assembly's gas inlet and gas outlet sides
▪ Air or inert gas as a test medium for the leak test
▪ Foam-generating leakage medium for the leak test
Description
Do not twist the pipe connections in the assemblies.
Use a second spanner wrench for securing when
loosening and tightening pipe joints.
Designation, category, installation condi-
No.
tion
1 Install the inlet pressure line (1).
2 Install the bleed line (2).
3 Install the motorization line (3).
Maintenance
141