Kak deela Digger! (hope that's spelt right - have a brother who lives in Moscow)
I have scanned the pages for the TK30 from my R2R manual and they are available here :
http://www.geocities.com/skilpadkos/tk30.jpg (page one)
http://www.geocities.com/skilpadkos/tk31.jpg (page two)
Two rather big files so you might want to save them to desktop before printing.
The TK30 is a two speed 7 1/2/ and 3 3/4 IPS two track R2R with maximum spool 7 in.
To dismantle pull off speed-change knob, undo four coin slotted screws and lift off top plate with stop/start and fast wind keys held down. Undo four 3BA nuts securing chassis to cabinet. Pull out loudspeaker plug and lift chassis from cabinet vertically.
Cheers,
Andrew (RSA)