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  #1  
Old 19-04-09, 03:45
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 661
Default Dummie’s guide to carrier steering and brake adjustment please

Gidday all,

I seem to be making steady progress in getting my brakes and steering 100%.

I did quite a lot of mucking around with all the different connections trying to get it all set up as per the manual.

I also found that the steering box was seeping oil and there was little oil left in the box. I pulled the cover off and removed the shims and fitted a suitably sized paper gasket instead. That still hasn't done the job so will have to redo it again.

I have also adjusted one of the tracks and that is a lot better now.


One thing I haven’t yet been able to solve though and which is bugging me somewhat is this. When the steering wheel is at full lock to the left, upon releasing the wheel, there is a resounding clunk which judders through the steering system.

After disconnecting the steering rods and isolating the steering wheel from the steering cam, I have finally identified the culprit as the left side (viewed from the rear) clevis at the steering cam. There is a plate just forward of the cam which is bolted to the hull, and the clevis is actually dropping down below the height of this plate. When the steering is released, this clevis strikes the plate and then eventually rides over it with a clunk that causes a judder through the whole steering system.

It may not have been picked up when the carier was rebuilt. I can see some grinding down of this plate near the end of the hull crosss shaft, but there is nothing that I can see near this left side clevis.

I seem to be having major difficulty getting access to this point though and I wonder if there is any practical way to get to it short of a major stripdown. I have removed all the covers but it really only gives access to the right side clevis and right side of the cam.

I have taken some pictures of the offending clevis using my wife’s mirror placed under the driver’s seat. The steering is at full left lock and the left side clevis is as far back as it will go and you can just make out where it has dropped below this plate on the hull.

My question is, unless I am mising something, how can I best attack the problem? From what I can see, these clevises have a screw through the end that attaches them to the cam. Getting access to the one on the left side (as viewed from the rear) is a problem though. I can barely squeeze into the right rear crew area as it is (184cm and 103kg!).

If I could get this left side clevis off, I’m sure a little bit of grounding off of the edge would do the job, and allow the clevis to ‘ride over’ this plate on the hull a lot easier.

Does anyone have any bright ideas?

Any suggestions would be appreciated.
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File Type: jpg IMG_3915.jpg (41.2 KB, 82 views)
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  #2  
Old 19-04-09, 06:21
Lynn Eades Lynn Eades is offline
Bluebell
 
Join Date: May 2003
Location: Tauranga, New Zealand
Posts: 5,541
Default Darryl

Is that your cam plate we are looking at. I will post a pic (that may have come from Ron, and it looks like Jordans been there) so that we can help I.D which bits your talking about.
If we are looking at your cam plate,and the long clevis, then it all looks too close to the floor. Is the cam plate assembled onto the mounting plate correctly? If you can get the two pins(screws) out, then you can pull the rods out, and then make them the same length. At this point you can drop out the mounting plate(with the cam plate on it) and though the hole, check the rollers etc.
My understanding is that once you have everything set up, all you have to do, is adjust the brakes at the backing plate.
I'll also post another bit, that should be credited to someone from the forum.
Thers a bit to getting these brakes together correctly. Different coloured springs etc.
Attached Images
File Type: jpg steering component id.jpg (84.1 KB, 83 views)
File Type: jpg Tool%20Brake%20Spring.jpg (99.9 KB, 58 views)
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Carrier Armoured O.P. No1 Mk3 W. T84991
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6.
Dodge WC55. 37mm Gun Motor Carriage M6
Jeep Mb #135668
So many questions....
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  #3  
Old 19-04-09, 06:40
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 661
Default Camplate and clevis

Gidday Lynn,

Yes, the view I have shown in the photograph is (via the mirror) looking back along the floor of the hull, through the bulkhead in the drivers area, looking back at the clevis on the camplate. You can make out the camplate in one of the two pictures I posted.

In the picture you have posted, it is the left side clevis mounted on the camplate (labelled J) that is the problem.

The problem is that once this clevis is fully back (toward the rear of the carrier) it drops below a plate that is bolted to the hull around the area where the cross shaft goes.

As you say, it is simply a little too close to the floor. I would say it would only need 1-2 mm shaved off the underside of that clevis (or off that plate) but the problem is getting too it, so I could remove the clevis mounting screw.

Does that help explain my predicament?

Cheers

Darryl
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  #4  
Old 19-04-09, 07:22
Lynn Eades Lynn Eades is offline
Bluebell
 
Join Date: May 2003
Location: Tauranga, New Zealand
Posts: 5,541
Default Darryl

I am guessing there may be a washer missing from under the bearing,or some other assembly fault, with your cam plate. The English/ Canadian carriers, have very little clearence for the bottom end of the clevis pins, but the Aust design allows more room, and hence have bigger dia. split pins, and longer ends to the clevis pins.
Your long clevis's are virtually rubbing on the floor.
Can one of you Aussie guys put up a parts breakdown for the cam plate, showing whats there is in the way of washers, spacers etc.
Ron, what you you tell us?
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Bluebell

Carrier Armoured O.P. No1 Mk3 W. T84991
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6.
Dodge WC55. 37mm Gun Motor Carriage M6
Jeep Mb #135668
So many questions....
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  #5  
Old 19-04-09, 07:49
Big D Big D is offline
Darryl
 
Join Date: May 2008
Location: Dunedin, New Zealand
Posts: 661
Default The cam plate

Thanks Lynn

Do you have any secrets for actually accessing the area?

Cheers

Darryl
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  #6  
Old 19-04-09, 07:59
Lynn Eades Lynn Eades is offline
Bluebell
 
Join Date: May 2003
Location: Tauranga, New Zealand
Posts: 5,541
Default D

Im guessing that if you disconnect the brakes at the rear, then you can probably get full rotation of the cam plate. This in turn, may allow you better access to the pins in the long clevis's (j)
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Bluebell

Carrier Armoured O.P. No1 Mk3 W. T84991
Carrier Bren No2.Mk.I. NewZealand Railways. NZR.6.
Dodge WC55. 37mm Gun Motor Carriage M6
Jeep Mb #135668
So many questions....
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  #7  
Old 19-04-09, 11:55
ron ron is offline
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Join Date: Jan 2006
Location: gold coast qld australia
Posts: 1,294
Default Steering

Hi Darryl &Lyn,
Lyn I think that you are correct, there is a washer missing from under the cam plate,and I would hazzaed a guess that The clevis pin is too long,and what you suggest regarding disconnecting the brake rods to test for movement is also the way to go,I think that I would also check to see if I was getting the same amount of movement in either direction of the cross shaft , Idealy I would remove the steering cam plate and give it a good check over, I realise that Darryls carrier has been rebuilt but the bearing might be buggered and not allowing enough movement,its not a big job and its best to look at all of the options,good luck Darryl keep us posted,
Regards to you both,Ron
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