Acos Lustre GST-801: TONEARM LIFT FIXED (early model).

Acos Lustre GST-801: TONEARM LIFT FIXED (early model).

I read that many have problems with the 801 lift, so I am posting this separately.

I screwed up my tonearm lift, figured it out, FIXED it. Love the arm, love the lift.

I assumed the fluid was bad, but no, it was me who messed with the physics of the thing.

chackster tells us: " It was an earlier version of the armlift construction, Lustre completely changed it in the later version to conventional armlift without that long thin strip of metal."

A suggestion on AudioKarma mentioned looking underneath, verifying a set screw was snug. That may be the simple problem for other’s.

I found my problem, and suspect/hope it could be a common problem for others, as it is easily fixed. I had my arm un-installed, see the bottom easily, but, with a mirror, it could be seen/fixed while mounted, perhaps easier when steady.

1. Lever flexes a long thin strip of metal (visible when upside down). The end of the metal activates the rise/lower action when flexed by the lever.

2. The lift raises/lowers ’by itself’ after you ’start’ it, by moving the lever up or down. (IOW, once started, the action is not controlled by the lever, it’s controlled by fluid moving). It starts up and continues to rise like a cake.

3. There is a small gap at the end of the metal strip below the cylinder. There is a small projecting rod/pin on the bottom of the cylinder. The cylinder has to be rotated so that the pin moves out of sight, above the end of the flexible metal strip.

4. My cylinder had been rotated (by me), the rod/pin was in that gap, no metal strip below it. So, when the metal strip flexed, it did not contact the pin. I simply rotated the cylinder so that the pin moved out of sight, now above the metal strip.

Fixed, but not height adjusted.

5. The top curved rail rotates, for proper positioning for the full sweep of the tonearm. The curved rail has it’s own set screw. Loosen set screw, position/rotate the curved rail for full arm sweep, tighten.

6. I think mine, and probably others, people loosen the cylinder set screw and like me, rotate the cylinder to position the attached curved rail. Inadvertently moving the cylinder’s lower pin to the gap where there is no contact with the flexible metal strip, thus no action.

My re-assembly procedure.

First, get arm height, arm balance, general VTA angle set. Adjusting the height/clearance of the lift’s top curved rail (below the tonearm when playing) is relative to the tonearm’s downward angle.

1. loosen and lightly snug both set screws (cylinder and top curved rail) (so no real force needed when making final adjustment, avoiding one part moving the other).

2. loosen cylinder’s set screw and rotate cylinder (view from bottom) so the pin is out of sight above the metal strip. slight tighten.

**** Note: never rotate the cylinder later when adjusting it’s height, or positioning the top curved rail ****

3. loosen cylinder’s set screw, make general height adjustment, slight tighten. (to get the top curved rail close to the bottom of the tonearm prior to next step).

4. loosen top curved rail’s set screw, rotate to position it for the full sweep of the tonearm, tighten. it’s done.

5. final height of cylinder will need to be coordinated with arm height. Patience, adjust bit by bit, avoiding rotating it, to keep it’s lower pin above the flexible metal strip.

I sold my Lustre to my friend Don Griffiths  but I was aware of the mediocre quality of the  lift. So I bought for him Rega lift (+/- 40 euro) hoping that he somehow can install Rega instead of the original lift. 
I hope to report later about succes of this idea. 
I don't know what the later models look like.

The Victor Arms, UA-7045 and UA-7082 original lift can be replaced by a Jelco JL-45 (seems many arms used Jelco Lifts).

This source includes 19% VAT, which I could have subtracted.
There are more parts hidden underneath in the anti-skating block in earlier version of the Lustre GST-801. The cylinder with silicone separated from the actual finger-lift, they are connected by thin and long metal rail (too complicated) and the result the actual finger-lift is more forward while the cylinder is backward. Here you can see my arm with completely removed finger-lift, but the cylinder is still there, because they are separated, in this scenario i can’t lift it, i just removed it and used the arm without armlift (manually), it was broken anyway. My a friend who bought the arm from me fixed the problem later.

On my last sample (NOS) the lift is just like any conventional armlift, it’s just a cylinder with silicon oil with the finger-lift coming directly from the cylinder (it is a one piece part). For this reason on this version the finger-lift located just on the right side of the cylinder (not a few inches forward like on the earlier version). So the Lustre engineers decided to remove that metal rail hidden underneath (on the earlier version) between the cylinder and the finder-lift and it was pretty smart idea.