Preparing For The Maintenance - Honeywell HON 5020 Assembly

Maintenance and servic-
ing parts for actuator
assembly
Maintenance and servic-
ing parts for travel indica-
tion (optional)
Lubricants
5.3

Preparing for the maintenance

Pressurized parts
Overview
HON 5020 gas pressure regulator
 The spare parts always required for the actuator assembly's maintenance are grouped
together into spare parts kits appropriate for the device in question. Each spare parts kit
has its own part number.
 Individual servicing parts can be ordered by using the corresponding part number,
which is specified in the bill of materials for the actuator assembly. The required num-
ber of parts is specified in the "Quantity" column.
 The bill of materials for the travel indication is broken down into maintenance parts and
servicing parts.
 The required number of maintenance or servicing parts is indicated under the relevant
part number in the "Part No." column. If no quantity is specified, this means that only
one unit is required.
The specifications for the lubricants can be found in the list of lubricants.
The list of lubricants can be found in the appendix of this component documentation.
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.
Schematic diagram using the imperial system HON 640a as an example:
The numbers have the following meaning:
No. Meaning
1 Inlet stop valve armature
2 Gas pressure regulator
3 Pressure gauge
4 Outlet stop valve armature
5 Valve for blowdown line
6 Blowdown line
Maintenance
25