Jump to content

C-130/Hercules Steering Control Valve


munirabbasi
 Share

Recommended Posts

What do you mean be failure?

I have changed steering control valves on all of the MDS/models you listed.

Normally they are changed for leaking out of limits, changed during shimmy troubleshooting, or changed because of normal wear.

I have never seen one explode or anything crazy.  

Link to comment
Share on other sites

50 minutes ago, hehe said:

What do you mean be failure?

I have changed steering control valves on all of the MDS/models you listed.

Normally they are changed for leaking out of limits, changed during shimmy troubleshooting, or changed because of normal wear.

I have never seen one explode or anything crazy.  

Thanks Chris  hehe

Can you submit me any lockheed martin service new/T.O regarding Steering Control Valve. or explain how it work and neutral

Munir Abbasi

home of hercules Pakistan

Link to comment
Share on other sites

The valve is set to a neutral position during overhaul by centering the spool between the outlet ports.  What that means is that the valve should not port fluid when in neutral position, this can be a hard position to achieve during overhaul.

Neutral position should not port fluid.  Neutral uses the internal spring loaded accumulator to take out shocks and movement of the wheels during takeoff and landing.

Are you having problems with the valve porting left or right and not holding the wheels in center position?  

Link to comment
Share on other sites

2 hours ago, hehe said:

This service news talks about it.  If in doubt and you dont know how to rig/overhaul the valve, Just replace it.

V12N4.pdf

Thanks.

Hercules operator countries guys continue promoting/enhancing/contributing skill level of work center mechanic for maintaining safe operation of C-130 hercules big birds

Best Regards

Munir Abbasi Home of hercules Pakistan

Link to comment
Share on other sites

On 11/18/2018 at 9:11 AM, hehe said:

The valve is set to a neutral position during overhaul by centering the spool between the outlet ports.  What that means is that the valve should not port fluid when in neutral position, this can be a hard position to achieve during overhaul.

Neutral position should not port fluid.  Neutral uses the internal spring loaded accumulator to take out shocks and movement of the wheels during takeoff and landing.

Are you having problems with the valve porting left or right and not holding the wheels in center position?  

Hello hehe Hydraulic Expertise

Can you explain what is out put of steering control valve (high pressure ports) for two cylinder actuator?

Munir Abbasi

Home of hercules Pakistan

Link to comment
Share on other sites

11 hours ago, munirabbasi said:

Hello hehe Hydraulic Expertise

Can you explain what is out put of steering control valve (high pressure ports) for two cylinder actuator?

Munir Abbasi

Home of hercules Pakistan

Are you asking what pressure is ported?

There is no pressure reduction in steering control valve, pressure to the actuators depends on how far you turn the steering wheel.  Full turn is 3k psi to the extend/retract side of applicable actuators (left/right)

Link to comment
Share on other sites

  • 2 weeks later...
On 11/21/2018 at 8:31 PM, hehe said:

Are you asking what pressure is ported?

There is no pressure reduction in steering control valve, pressure to the actuators depends on how far you turn the steering wheel.  Full turn is 3k psi to the extend/retract side of applicable actuators (left/right)

Thanks

Best Regards

Munir Abbasi Home of Hercules Pakistan

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...