Pitch control not responding, Dual 1249

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HighFigh50-60s
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Posts: 31
Joined: 15 May 2016 16:16

Pitch control not responding, Dual 1249

Post by HighFigh50-60s » 27 Jun 2019 02:09

Hello all,
My first Dual to service. I have downloaded & read svc manual.

Problems:
1. Tonearm lifts up and returns to rest.
Determined the steurpimple is missing.
I fabricated a temporary piece, and tonearm function OK.
Have ordered the part. Cleaned old grease from grease points.

2. Pitch control was not working.
I read 4 threads here, and got the counter bearing assembly
freed up with lube-free electrical cleaner.
Still no pitch control adjustment.

Questions:
1. I am not familiar with how the pitch adjustment knob should
"feel" when I turn it.
Does the pitch knob make a "clicking" sound
when rotated in either direction when the nose of the
stop disc engages the stop ?

2. With the platter off, I can see the counter bearing
assembly move up and down with pitch adjustment knob turned
in either clockwise or counter-clockwise.
Is this what I should observe ?

3.Should I also be able to observe the conical sleeve
motor pulley spreader move up and down when it is freed up?

4. What is the best way to free up conical sleeve without
removing the motor pulley ? I would rather not attempt that.

( I have read page 4 and viewed Figure 4 in Dual 1249 manual).

Many thanks,
HF50-60s

Alec124c41
vinyl engineer
vinyl engineer
Canada
Posts: 23199
Joined: 28 Oct 2002 03:24
Location: North of Toronto, Canada

Re: Pitch control not responding, Dual 1249

Post by Alec124c41 » 27 Jun 2019 13:23

If you can get an Exacto blade between the segments, you might be able to push the cone. Perhaps you could do this some other way. t's been years since I looked at this.

Cheers,
Alec

Alec124c41
vinyl engineer
vinyl engineer
Canada
Posts: 23199
Joined: 28 Oct 2002 03:24
Location: North of Toronto, Canada

Re: Pitch control not responding, Dual 1249

Post by Alec124c41 » 28 Jun 2019 04:29

Or is it push down from the top?

HighFigh50-60s
member
member
Posts: 31
Joined: 15 May 2016 16:16

Re: Pitch control not responding, Dual 1249

Post by HighFigh50-60s » 28 Jun 2019 15:37

Thanks for the reply, Alec.

Can someone answer questions 1 to 3 that I posted ?
HF50-60s

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