Disassembling The Pilot And Maintaining The Base Plate - Honeywell HON 512 User And Maintenance Manual

8.4.1

Disassembling the pilot and maintaining the base plate

Falling components
Sample maintenance
instructions
Cleaning
Disassembling the pilot
and maintaining the base
plate
HON 512 with HON 650 pilot user manual
Crush and impact hazard posed by components falling or toppling over
accidentally.
When working with heavy components that have been removed or are yet to be installed,
injury may result if the components start moving in an uncontrolled manner, e.g., fall down
from the working surface or topple over.
 Place removed components exclusively on level, horizontal working surfaces with enough
load-bearing capacity.
 If necessary, secure removed components so that they will not fall or topple over.
 Wear the required personal protective equipment.
 Exercise caution when performing the relevant tasks.
The maintenance described below uses the two-stage pilot as a reference. Refer to the spare
parts lists to make sure that you replace all the maintenance parts relevant to your device
model during maintenance.
Observe the following cleaning instructions:
▪ Before assembly, all parts must be cleaned in order to remove any foreign particles
(swarf) and soiling.
▪ If fasteners (screws, washers, etc.) are replaced with identical new parts, any oil on
these new parts must first be removed.
Proceed as follows:
Figure Step Description
1 Unscrew the 4 screws (3) between the
control stage (1) and the base plate (2) and
remove the control stage.
2 Unscrew the 4 screws (3) between the load
limiting stage (1) and the base plate (2) and
remove the load limiting stage.
Maintenance
103