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Old 10th Sep 2018, 11:58 am   #1
m_rawdin
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Location: Newcastle Upon Tyne, Tyne & Wear, UK.
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Default Slow No10 dial

The No10 dial on my candlestick phone is a bit slow on the return so I was going to disassemble it and see if anything needs cleaning inside as the front of it is pretty dirty. I am slightly worried about the main spring unwinding, how is this held in place and which screws/parts should I avoid removing to make sure it stays in place? Is there a way of cleaning the main spindle/spring and lubricating it without touching the main spring and unwinding it?
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Old 10th Sep 2018, 3:55 pm   #2
ThePillenwerfer
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Default Re: Slow No10 dial

Here are the GPO servicing instructions.
Attached Files
File Type: pdf B5126 (Dial Nos 10, 11).pdf (1.17 MB, 17 views)
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Old 10th Sep 2018, 4:04 pm   #3
dagskarlsen
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Default Re: Slow No10 dial

Usually you do not have to dismantle it. The instruction sent in the reply over is good, more info here: http://www.britishtelephones.com/dial1.htm#d10

I would have tried to blow out the dirt, clean with a little brush and oil carefully. Do not use oil with silicone, it may cause problems later for the contact sets.

A thin watch, weapon, bike, sewing machine oil are usually OK, but you cant hardly get to little.

dsk
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Old 10th Sep 2018, 10:16 pm   #4
m_rawdin
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Default Re: Slow No10 dial

Got it sorted, I took out the governor and governor gear, blew as much dirt out as I could and put a tiny amount of oil on any moving parts, it's going great guns now.
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