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Author Topic: Steering box  (Read 494 times)

Offline RSL

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Steering box
« on: July 30, 2016, 04:35:37 pm »
U1500 will soon be back on the road, after its refurbishment. I am however wondering about the condition of the steering box as I can turn the steering wheel about 6inches before anything happens. I have already replaced the track rod and all other joints OK. My experience on my father's 2 406 mogs years ago was the same if not worse. Do they all have a degree of play and is there a fix or does it need to be a new steering box
Bought a mog now trying to justify the cost to my wife

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Offline Rabbit Recovery

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Re: Steering box
« Reply #1 on: August 03, 2016, 08:37:29 am »
I am assuming that you have adjusted the steering box as per the manual using the grub screw? I did this too mine and there was a marked improvement.
New challenges every month, but driving one cannot be beaten.

Offline RSL

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Re: Steering box
« Reply #2 on: August 03, 2016, 09:30:57 am »
Hello

thank you for the reply, i have just been through my operating instruction manual(only one i have) and there is nothing in there about the steering box.  could you advise what you did please
Bought a mog now trying to justify the cost to my wife

Offline Rabbit Recovery

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Re: Steering box
« Reply #3 on: August 03, 2016, 11:30:40 pm »
The short version is: on the steering box there is a slotted set crew with a lock nut and I twiddled that to achieve the desired effect. I have since replaced both of the uj's in the engine bay for the steering as well without having to for out for the genuine shaft and column! (Bonus)  :D

The long version will have to wait until I am back at the weekend as I am working away this week.

Another check is for loose King pins due to lack of greasing. I had to replace one of those as well. As I am sure you can imagine if there is play in that steering effort will be lost.

Let's hope my memory doesn't fail me at the weekend.
New challenges every month, but driving one cannot be beaten.

Offline RSL

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Re: Steering box
« Reply #4 on: August 11, 2016, 08:29:05 pm »
Adjusted the steering box as you suggested, made a big difference, almost no play now, thanks for the help.
Bought a mog now trying to justify the cost to my wife

Offline Rabbit Recovery

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Re: Steering box
« Reply #5 on: August 15, 2016, 08:05:49 pm »
My sincere apologies!!!  :o

My mind it would appear did fail me. I am so sorry.

Paul
New challenges every month, but driving one cannot be beaten.

Offline RSL

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Re: Steering box
« Reply #6 on: August 16, 2016, 07:39:16 am »
No problem,  it has made a big difference to the steering,  does it say in you manual to tighten to a tolerance or till there's no play as that is only thing i don't know.  i was a bit worried i may overtighten

Bought a mog now trying to justify the cost to my wife

Offline moose

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Re: Steering box
« Reply #7 on: August 17, 2016, 08:06:47 am »
Be careful the adjusting screw is there to adjust the slack in the box when everything is like new, and as we are all running machines that are used the play you have adjusted out is in the middle of the worm drive or the straight ahead position As this is where it sits most of its life, so what happens you tighten this screw and adjust the play out but that also means that it very tight where there is no wear when turning outside the straight ahead position.
At best this will lead to increased wear at worst the box could seize ! One of the things forgotten on a service is the power steering fluid not being changed and the filter not being replaced this has a massive effect on pump and box life.
Best practice I've found is disconnect the pitman arm lift the cab disconnect the intermediate shaft make a tool out of an old shaft and socket use a torque indicator turning left to right checking for risitance at any point.
You may think there is no stiffness at any point but your power steering masks this.
Moose

Offline RSL

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Re: Steering box
« Reply #8 on: August 17, 2016, 08:11:42 am »
Hello

thank you for your reply, with doing the refurb all oils and filters have been changed, and it does concern me about over adjusting the steering box so i will investigate further
Bought a mog now trying to justify the cost to my wife

Offline moose

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Re: Steering box
« Reply #9 on: August 17, 2016, 08:18:26 am »
Be careful the adjusting screw is there to adjust the slack in the box when everything is like new, and as we are all running machines that are used the play you have adjusted out is in the middle of the worm drive or the straight ahead position As this is where it sits most of its life, so what happens you tighten this screw and adjust the play out but that also means that it very tight where there is no wear when turning outside the straight ahead position.
At best this will lead to increased wear at worst the box could seize ! One of the things forgotten on a service is the power steering fluid not being changed and the filter not being replaced this has a massive effect on pump and box life.
Best practice I've found is disconnect the pitman arm lift the cab disconnect the intermediate shaft make a tool out of an old shaft and socket use a torque indicator turning left to right checking for risitance at any point.
You may think there is no stiffness at any point but your power steering masks this.
Moose

Offline Rabbit Recovery

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Re: Steering box
« Reply #10 on: August 18, 2016, 09:08:08 pm »
Agreed about the over adjusting and the power steering masking tight spots. Thinking back ( it was a few years ago now though) I seem to remember that when I did it I didn't just do it blind as such as someone else had mentioned that from a general vehicle mechanics back ground. I am sorry to say that the above was not the full story. The adjustment was done with the wheels off the floor, engine off and someone ( the above mentioned mechanic at the wheel ). We were not as scientific as Moose suggests which is far better but he checked free movement whilst I did the twiddling.  :(

Another vast improvement on my steering was replacing both of the joints on the column in the engine back and the track and drag link joints / arms.

The loosest thing now is the nut behind the wheel  ::)
New challenges every month, but driving one cannot be beaten.

 

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