Victor TT 801

AMP Repair Studio in Japan can do a complete rebuild on JVC TT-801’s -

see here for example

http://amp8.com/amp-etc/record/victor/tt-801.htm

I am not interested to amp repair in Japan to do a turntable repair or maintenance ..... by my ability I know how to do it myself.

@best-groove 

Obviously you don't, otherwise you wouldn't spend all this time on audio forums asking the same question.

There are in fact places in Japan where you could source a manual, but your lack of understanding of Japanese language and culture will unfortunately be a barrier.

Best you bin the TT801 and then all your troubles will be over.