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  #1  
Old 19-11-20, 12:43
Rob Beale Rob Beale is offline
C8AX Ambulance (NZ), UC1*
 
Join Date: Aug 2006
Location: Gisborne, New Zealand
Posts: 380
Default UC1* clevis question

There are three clevises that look similar in a UC1*

I don't have access to a British UC1 parts list to compare with the UC1*.

What is the difference between a TL1737 and a CTL4060?

Also does a TL5050 have similar dimensions to the TL1737?
(I understand the they have different internal diameters).
and is the TL5050 RH thread?

Rob

Last edited by Rob Beale; 23-11-20 at 09:55. Reason: wrong part no: should be CTL4060
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  #2  
Old 21-11-20, 08:19
Rob Beale Rob Beale is offline
C8AX Ambulance (NZ), UC1*
 
Join Date: Aug 2006
Location: Gisborne, New Zealand
Posts: 380
Default Part of the story...

I have been working from a 1941 parts list for the UC1*.

I am informed that CTL4060 was replaced by TL1737 which went on to B and C variants in later parts lists.

Could someone tell me if the right hand most clevis from the steering column cluster TL5050 is the same outside shape as TL 1737 please?

Rob
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  #3  
Old 21-11-20, 19:54
Michael R. Michael R. is offline
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Join Date: Jun 2011
Location: Canada
Posts: 1,001
Default Yes and No

Quote:
Originally Posted by Rob Beale View Post
I have been working from a 1941 parts list for the UC1*. SILLY BOY...
I am informed that CTL4060 was replaced by TL1737 which went on to B and C variants in later parts lists.
Could someone tell me if the right hand most clevis from the steering column cluster TL5050 is the same outside shape as TL 1737 please?
Rob
“Yes”, ... and “No”

A first series CTL 5050 fork is the same shape as the TL/CTL 1737 series fork.
However, the welded version of CTL 5050 was replaced with a cast version, which is not the same outside shape as the TL/CTL 1737 series fork.

Some may know the cast version as CTL 5050B, 1945 dated FWC-02 parts manuals appear to name it as such.


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  #4  
Old 23-11-20, 10:21
Rob Beale Rob Beale is offline
C8AX Ambulance (NZ), UC1*
 
Join Date: Aug 2006
Location: Gisborne, New Zealand
Posts: 380
Default A way forward...

Many thanks to Michael R for his clear answers.

Living in the Antipodes, we have both UC1* and LP2/2A carriers. (plus a few Loyd, AOP and 3" Mortar from the UK)
The 200 UC1* that NZ received were early UC1* models, (T numbers in the early 50,000) series so the later parts books did not get here!

Original parts are getting scarce, and I am looking at a way to use NOS LP parts in a UC1* with a minor modification to look like the UC layout for the assembly at the base of the steering column.

The main differences in an LP2 are:
1. the thread type: UNF
2. thread orientation: both centre clevises are RH thread, and the outer ones are LH thread
3. both outer clevises have the same part no, with wide jaws, LH thread
4. the joining link to the RH bell crank has narrow jaws at each end

So my solution is to take a standard LP brake rod clevis and drill and retap it to 1/2" UNF LH thread, to replace the wide jawed outer clevis and use a UC stepped joining link TL4051.
This is then combined with LP centre clevises and screw adjusters to complete the steering column to bell cranks assembly.

Now awaiting the delivery of the new tap!

I have no doubt the RNZEME would have done the same - I found evidence in my hull that an LP2 engine and gearbox had been fitted, with exhausts going out through the rear plate.

Rob

p.s. pictures will follow in due course

Last edited by Rob Beale; 23-11-20 at 10:22. Reason: Clarity
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