Power Steering Warning

[TCubed]

From the handbook:

"Under no circumstances must the steering wheel be held on full lock for more than thirty seconds in any one minute, otherwise the steering assembly may be damaged."

Why...? Presumably this only applies when the engine is running? Can one park with the steering on full lock?

 

[drewster]

very good question will get back to you on that might be that the pump will over heat dont know ??

 

[wammers]

Only applies with engine running. With steering held at full lock it will over pressure the system and cause heat build up.

 

[drewster]

Only applies with engine running. With steering held at full lock it will over pressure the system and cause heat build up.

are so part of my thoughts were right then is that the big bang theory lol

 

[ovalandrover]

are so part of my thoughts were right then is that the big bang theory lol

Yes then its a cleanup of your driveway

 

[drewster]

Yes then its a cleanup of your driveway

i made the mistake of bleading my new pump with a mate turning the steering and covered my hole garage with atf lol

 

[wammers]

are so part of my thoughts were right then is that the big bang theory lol

Not exactly, but under normal operation oil is pumped to steering box and then flows back to header tank. When you turn the steering wheel, the shuttle valves cause a greater pressure at one end of the steering box piston than at the other, which gives you the power assist. Oil is being circulated all the time. But if the steering is turned in one direction to full lock, there is no flow and the oil pressure rises until the relief valve opens.

 

[TCubed]

Not exactly, but under normal operation oil is pumped to steering box and then flows back to header tank. When you turn the steering wheel, the shuttle valves cause a greater pressure at one end of the steering box piston than at the other, which gives you the power assist. Oil is being circulated all the time. But if the steering is turned in one direction to full lock, there is no flow and the oil pressure rises until the relief valve opens.

Doesn't that imply there is a safety feature to prevent damage to the system?