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Ian Beale 
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Joined: 03 Oct 2011
Location: New South Wales
Points: 973
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 Topic: Update on FA 10 Repairs
Posted: 17 Sep 2021 at 6:14pm |
Back a while I mentioned that the LHS final on our FA 10 had come apart. We rounded up the parts within a couple of days in time for our diesel mech son to strip and rebuild. Then we walked it home and he started on the RHS one.
And found that the sprocket hub there was also loose. That took a while to find another set - by which time he had left for his base - which is on the other side of OZ.
Between his work and the Peking Pox we finally got him back just now and the machine is mobile again.
About 3000 hours ago we rebuilt the track gear and were in to the sprocket nuts. Question was - were the sprockets pressed on as the finals had obviously been apart - we now know that "Joe Fiddler" did the job. They passed the "ring test" when hit with a hammer and we didn't have the press gear so we hoped. Might have been better if we'd had the press.
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 41614
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Posted: 18 Sep 2021 at 9:01pm |
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If the FA 10 has a outside bearing by sprocket then it was not a press fit but the nut on axle is just torqued to many ft pounds /
On my HD5G the nut was something like 1200 ft pounds - big wrench , long pipe measure back from axle and find where to chin myself on the pipe
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Ian Beale
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Joined: 03 Oct 2011
Location: New South Wales
Points: 973
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Posted: 19 Sep 2021 at 4:59am |
Coke
In the absence of a press we tightened the sprocket ring nut to the 1500 odd ft lbs in the book.
But we didn't have to gear to do
Workshop Manual Fig 203 -Press Fitting the Sprocket using Portable Hydraulic Press Part No 29138
To the required 40,000 - 50,000 Kg
We now have a local adaptation of that.
Edited by Ian Beale - 19 Sep 2021 at 5:00am
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wjohn
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Joined: 19 Jan 2010
Location: KS
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Posted: 19 Sep 2021 at 8:39am |
Am I following correctly that you are supposed to press this onto the assembled machine, so horizontally?
If so that is a lot of force for some sort of portable press. Wow. I'm not familiar with working on equipment this heavy.
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1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45
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JTOOL
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Joined: 28 Feb 2021
Location: 64720
Points: 346
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Posted: 19 Sep 2021 at 10:59am |
@wjohn; Here are some video's that you might find interesting:
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Ian Beale
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Location: New South Wales
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Posted: 19 Sep 2021 at 5:30pm |
Wjohn
You got it right
The press setup in the first Cat video looks pretty much what the FA 10 manual diagram is in principle
Edited by Ian Beale - 19 Sep 2021 at 5:37pm
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Ian Beale
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Location: New South Wales
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Posted: 19 Sep 2021 at 9:21pm |
Coke
I wonder -
Fiat Allis 10, around 1975, double reduction finals.
And I was introduced to that bloke RTFM quite a while ago 
Edited by Ian Beale - 19 Sep 2021 at 9:23pm
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wjohn
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Posted: 20 Sep 2021 at 8:05pm |
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That definitely looks like a job. Always learning something here.
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1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45
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Ian Beale
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Location: New South Wales
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Posted: 21 Sep 2021 at 3:56am |
wjohn
The service manuals help a lot.
It is easier when our son who is a pro heavy diesel man and has (or can make) the gear does it. I mostly got to watch.
There was a bit of a time lag as he works in the north west of Oz, so about the opposite side from us. About 2 days solid driving - or comfortably in a day by his plane. It is the getting a break in his work that is the problem! |
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