Maintenance
HON 512 with HON 650 pilot user manual
134
8.4.5
Maintaining the load limiting stage
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.
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.
When tightening fasteners, observe the following tightening torques:
Part
Tightening torque
Step
Socket cap screw
12 Nm (9 ft lbs)
35
Proceed as follows:
Figure
Step
Description
1 - 27
Same as in
Maintaining the control stage
with a diaphragm assembly
(see page 106)
28
Turn the load limiting stage. Unscrew the
socket cap screws and washers on the base
plate
29
Remove the base plate. Replace the O-ring
(1) with a new, greased O-ring.
Falling components
Cleaning
Tightening torques
Maintaining the load
limiting stage
Summary of Contents for HON 512
Page 185: ...Appendix HON 512 with HON 650 pilot user manual 185 X Fail to open version Y Amplifying valve ...
Page 205: ...Appendix HON 512 with HON 650 pilot user manual 205 ...
Page 206: ...Appendix HON 512 with HON 650 pilot user manual 206 ...
Page 207: ...Appendix HON 512 with HON 650 pilot user manual 207 ...
