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Old 20th May 2006, 12:37 am   #1
MichaelR
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Default R1155 Type 13 slow motion drive

Hi ,

Could somebody advise me on the correct assembly and parts needed for this drive type

Mike
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Old 20th May 2006, 8:04 am   #2
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Default Re: R1155 Type 13 slow motion drive

Hi Micheal.

This may be of some help. Have a look at this link. The R1155 drive is described at the end of the article.

http://vintageradio.me.uk/radconnav/1962/nov62.htm


Rich.
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Old 20th May 2006, 10:09 am   #3
MichaelR
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Default Re: R1155 Type 13 slow motion drive

Thank you Richard this has helped me alot.

The R1155A I have just acquired has obviously had a bodge job done on the tuning drive , there was no cork washer.The metal disc had some hard cloth type material glued to its uper surface.I have cleaned all of this off and i had made a cork washer myself from an "old mug coaster". I am not sure how thick this washer needs to be , it is obviously vital for correct operation.

Does anybody have a drive washer thickness measurement?

Mike
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Old 20th May 2006, 5:12 pm   #4
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Default Re: R1155 Type 13 slow motion drive

Mike, I have a R1155A with the tappered roller type slowmotion. I just took it apart and measured the thickness of the cork washer, which was .03 inches.
John.
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Old 20th May 2006, 5:30 pm   #5
MichaelR
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Default Re: R1155 Type 13 slow motion drive

Hi John,

Many thanks for taking the trouble to measure the washer, I will now carry on to see if I can get this to work.
I hope all is well with you in the bay area.

Regards
Mike
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Old 20th May 2006, 6:00 pm   #6
JHGibson
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Default Re: R1155 Type 13 slow motion drive

Hi Mike, My washer is somewhat worn and flattened. I would imagine a washer of up to twice this thickness would work. If no one comes up with a spare washer or cork sheet, you could probably use cardboard.
John.
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Old 20th May 2006, 11:12 pm   #7
MichaelR
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Default Re: R1155 Type 13 slow motion drive

Hi John,

Thanks again for your help

I have got the slow motion to work now , I have used a .05 inch thickness.It feels a little gritty in it's action.
Is your drive very smooth, if so I may still have the washer a little too thick.

Thanks again enjoy your weekend
Mike
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Old 20th May 2006, 11:18 pm   #8
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Default Re: R1155 Type 13 slow motion drive

The friction type drive was never brilliant, and recieved a lot of complaints from Aircrew, hence the change to the later geared type.

If it works half-way decently, then it may well be as good as the original, so don't worry too much!

Jim.
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Old 21st May 2006, 2:27 am   #9
JHGibson
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Default Re: R1155 Type 13 slow motion drive

Hi Mike, My R1155A drive while working satisfactory does feel a little gritty too.
John.
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Old 21st May 2006, 2:34 pm   #10
MichaelR
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Default Re: R1155 Type 13 slow motion drive

Hi John,

If that is the case I will leave it as it is at least it is giving me slow motion drive.
Thanks again for all your help and you too Jim, John and Richard

Mike
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