Welcome to the forum. This thread may help you a little, but get the manual and a set of belts from Martin (Dillen)

What type of Beogram 4002 do you have? There are several versions of that turntable. The type number is usually on a sticker underneath the turntable. Squeaky platter motor sounds are a symptom of the motor bearings drying out. That goes both for 4002 versions with the AC platter motor and versions with the DC platter motor. Member link to lubricate those bearings. You cannot just put oil on the motor shaft. The link I posted explains how the bearings have to be re-infused with oil. I have had him restore three of my Beogram motors so far and they work great now.

On your other problems oil is probably not the solution. You could have a bad pulley on the tonearm transport. Check for cracks on that pulley. Metal (aluminum) replacements are available. The belt on tangential arm motor should not be too tight. You will need the correct belts though.

Thank you Sonavor. I am not able to get under the turntable at the moment to check the type. Here are a few things that have happened or been discovered:

- The TONEARM TRANSPORT pulley is not loose and the belt is new. I was told to check that the screws are not loose: the two on the left of the pulley (looking at the turntable form the front) are tight. There is NO screw on the pulley itself. Should there be?

- I replaced the motor drive belt.

- I ran it without a record on the platter. The arm now most times goes to the end and returns. But sometimes it gets stuck at the end and won't return. I can only get it to return if I hit the stop button

- Listening carefully with the platter removed, I don't hear any noise or squeaking from the motor. The squeaking sound occurs at the end of travel for the arm in both directions.

- With an LP on the platter, I did notice that the arm will travel too far, taking the stylus into the label area!

I love the 4002 and hope to be able to rectify these issues. I have a 20CL cartridge on it.

Thank you, Brian

I played a few more LPs watching at the end to lift the arm before it gets to the label. But the last LP played, the arm did not go fully to rest, stopping before it did with a grinding noise. I gave the assembly a gentle tap to the right and it turned off.

It seems the arm has problems at both ends of travel.

Thank you

Brian

It is too hard to provide any advice without knowing what type of Beogram 400x you have and not seeing anything. Can you take and post some pictures of the Beogram insides?

sonavor

This is the tag underneath. If you need inside photos, let me know what you would like to see.

When I last reassembled it, the panel on the right, behind the buttons, seems to have gotten stuck. I don't want to have to force anything, so if anyone has hints on how to free it...

The photo was pasted in, but it looks like it didn't post. Is there a trick to posting photos?

The info on the tag is:

GR 4002

SLUTAFRØVNING

No. 1189015

TYPE 5513

Thank you

Brian

There are two ways to post images.

One way is to use the "Options" tab of the message post screen (just to the right of the "Compose" tab). From there you use the Add/Update button which launches a popup dialog to upload a file from your computer. 

Another way is to go to your Beoworld user profile screen and from there to your "My Files" section. From the "My Files" section you can create some personal folders that you can name and upload images to. When you have pictures uploaded to your "My Files" folder you can use the "Insert Media" option of this message posting tool. You just browse in that popup to your image in your "My Files" folder and it will add it to your post.

Both methods take a little bit of getting used to but they work. Note that there is a size limit to the image files. I always try to crop mine down from the original high resolution file to the area I want to include in the post. Then I resize that cropped image to a width of between 650 and 1200 pixels. 750 pixels seems to work best on this site.

sonavor 

bbrandt wrote:

The info on the tag is:

GR 4002

SLUTAFRØVNING

No. 1189015

TYPE 5513

Thank you

Brian

 

Type 5513 is after the AC platter motors so it has a DC platter motor and it has an optical sensor to determine the position of the tonearm carriage. It is still just guessing without actually seeing it but it is possible that you have a problem in the position detection. Since it appears to be intermittent the problem could be a weak signal due to a lamp going out or a bad light sensor. Start with simpler things first though. Check to make sure that area is clean and free of dust/dirt. Check solder and wire connections. Also keep exercising it with the platters (top and sub-platter) off so you can see what is going on with the stop detection. With the platters off the Beogram will think there is a record present and lower to play. If you gently tap the arm towards the center to simulate a record playing the tangential drive should move the arm to keep up. See what happens when you do that at the point the end of record should be detected.

sonavor