Tighten up Dual 1229 arm lift lever?

gary7

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Have a Dual 1229 got back playing. Works except the lift lever won't stay in the up position after I lift the arm. Any way to tighten it up to hold the arm up?
 
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I'm not clear on if you're talking about the cue lever or the actual lifting mechanism.

If it's the cueing arm, it's a cam that operates the auto mechanisms tone arm lifting mechanism:

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It's basically an overcenter/geometry thing and if it won't stay up, it's likely a worn/damaged cam or perhaps there might be lubrication where there shouldn't be. A worn/damaged cam would be unusual, but possible.

I can't quite remember ATM how the cam is attached to the lever (Ie" screwed or keyed), but it's possible it may have "slipped" from the position is is supposed to be in. that pic above from the service manual shows how it should be oriented in the "UP" position. Tip the table up and have a look at it....
 
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The lift works fine in auto play. The arm lifts when I use the cue lever, but descends if I let go of the lever. Won't stay up.
 
It takes some amount of resistance from the cue arm mechanism pushing against the cue lever cam to keep it stuck in place. I’ve found if the arm cue height adjustment is set too low there can be too little pressure against the cam and the spring will overcome it, flicking the cue lever back.
 
The arm does drift down as it should. It's just like there is not enough tension at the lift lever to keep it up. It keeps popping back, lowering the arm.

IMG_3381.JPG
 
The arm lowering slowly has nothing to do with it but that's good. The adjustment that Penn42 suggests is screw 218 as seen in the image Tourmax posted. Turn that clockwise a bit (raising the tonearm upward) and see if it helps.
 
It takes some amount of resistance from the cue arm mechanism pushing against the cue lever cam to keep it stuck in place. I’ve found if the arm cue height adjustment is set too low there can be too little pressure against the cam and the spring will overcome it, flicking the cue lever back.
You’re probably on to the source of the problem.

I “assumed” the rest of the adjustments had already been done….
 
Ok. Looked at the SM where it shows lube points. At the lift lever is shows to use Wacker Silicon oil AK 500K. So it should have dampening fluid? Where exactly should it be applied?
 
Ok. Looked at the SM where it shows lube points. At the lift lever is shows to use Wacker Silicon oil AK 500K. So it should have dampening fluid? Where exactly should it be applied?

If it lowers slowly it doesn't need it. That's not your problem.

But when it's needed it goes inside the "lift tube" above #206 above. It requires disassembly to get it in there. 500k silicone oil is as thick as molasses on the dark side of the moon.
 
Notice on my 1218 how the cueing lever is slightly bent inward. I recently completed refurbishing the unit and set the lever straight. It would not stay engaged/forward until I tweaked it back. Through some reading I found several other owners have the lever slightly bent as well.

I read a suggestion where sanding the metal lever perpendicular to the plastic cam as well as cleaning the cam of grease can correct the condition. I'm pretty certain that the cueing lift system is the same on 1218 & 1229 decks. Please report back if you get the issue sorted, I will as well.
 
Notice on my 1218 how the cueing lever is slightly bent inward. I recently completed refurbishing the unit and set the lever straight. It would not stay engaged/forward until I tweaked it back. Through some reading I found several other owners have the lever slightly bent as well.

I read a suggestion where sanding the metal lever perpendicular to the plastic cam as well as cleaning the cam of grease can correct the condition. I'm pretty certain that the cueing lift system is the same on 1218 & 1229 decks. Please report back if you get the issue sorted, I will as well.
I thought about doing that, but was afraid I might crack the plastic cam. As I said, the SM shows #6 triangle pointing at the lift lever cam, Says 500K silicone used. I had some 300K and tried it. Did not help.
 
Monty Cat said it. As far as I know, the only place the you use the 300 or 500k is in the lift pin tube. The white cam in your photo should stay dry, unlubricated. Sand the lever beneath the cam 90 degrees perpendicular to its length with 150-200 grit sandpaper and clean the cam of all grease. I would tend to mine sooner but after weeks of toiling to get it working right, I need a break. Dual decks get a little overbearing lol...20240419_214323.jpg
 
This is what shows in the SM. #6 is the lift lever assembly. #1 is the lift pin tube. Just saying.

IMG_3382.JPGIMG_3383.JPGIMG_3384.JPGIMG_3385.JPG
 
I checked my service manual as well, identical cueing lever set up. Mine was printed in April 1970 and calls for alvania, so I'm sure yours is probably a couple years newer.

In either case I'm wrong about leaving it dry and can't recall if I did indeed. Again, mine holds with a slight inward bend. I have a partially disassembled parts unit I'll take a look at. I want to see the surface under the lever to see if it was sandblasted from the factory. I still think roughing the surface is worth a shot. I'll check it out sometime this morning.
 

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Well, The auto play & lift work as they should. Considering these are 50 yrs old. I guess it's OCD raising it's ugly head.
 
Well, The auto play & lift work as they should. Considering these are 50 yrs old. I guess it's OCD raising it's ugly head.

Totally get that, I'll still be looking in to the issue. I'm pretty new to the service aspect of this hobby, just collecting stuff for 20 years and didn't do anything until recently. These Dual units really try one's patience. Once I would get things 90% right, I'd get all OCD to attain 100% and regress. I think I did every procedure 5 times over a month on the 1218. Scored a 1215 for $20 and only did everything twice over a week ! Have both working well and have dedicated the 1215 as my 45 stacking deck. I'll keep you all posted !
 

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Totally get that, I'll still be looking in to the issue. I'm pretty new to the service aspect of this hobby, just collecting stuff for 20 years and didn't do anything until recently. These Dual units really try one's patience. Once I would get things 90% right, I'd get all OCD to attain 100% and regress. I think I did every procedure 5 times over a month on the 1218. Scored a 1215 for $20 and only did everything twice over a week ! Have both working well and have dedicated the 1215 as my 45 stacking deck. I'll keep you all posted !
Nice looking decks. I do have a fully functional 1249.

IMG_3374.JPG
 
Read these posts with interest. Fixed up a 1015 with a dropping cue. It’s prior owner greased it on the end of it. Cleaned out grease and that cured it. Have a 1219 doing that. Wish I still had it on my bench. It’s in a cabinet with a 1019 and a 1009SK. Of the 3 it’s the hardest to get at. Leaving alone for now. Use auto. Shares time with the others. Putting off for now. Have a United Audio base I am fixing up. Has a crappy masonite top. Spent time in a damp basement then shipped. Damaged two of the three holes the suspension springs. Have 1/4 plywood glued under the holes. Then drill new holes. Used wood filler to level it on top. Shipping left marks on the black top. Going to repaint. Last project til fall. Major yard work is keeping me from Dual projects.
 
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