How to thread cannot wind thread to pick up bobbon thread do not have a instruction book

Well, you COULD get this fixed -- or you could purchase an inexpensive bobbin winder and skip the whole issue. Does a better job, too.

try changing needles
clean under the needle plate & in the bobbin area for loose thread or lint
make sure the bobbin is inserted into the bobbin case correctly--if the
machine won't pick the thread up from the bobbin correctly take the bobbin
out of the case & turn it around & try it that way.

BRAND new Janome 1420qdc. New needle, doesn’t need oil. Will NOT wind a bobbin. Used almost an entire spook of thread doing this. At my wits end. HELP!

try changing the needle-flat side goes to the back of the machine
check to see if the thread has come off the thread take up lever
try rethreading the machine top thread & bobbin
clean under the needle plate area & also in the bobbin area for lint or loose threads

Ironically, often times when the bobbin thread is knotting up, it's the top thread that needs the adjustment. Loos top thread thesion will tangle up in the bobbin cassing...Think about it for a minuted. Try a quarter turn to the right on your top tension and then go fro there. There could be a problem with the bobbon casing tension adjust screw and plate. but I doubt it...Nine times out of ten when the bobbon thread is tangles the top thread is too loose.

Your timing is off, remove the floor plate on the table and run the flywheel over by hand, the needle should bottom out and start its up stroke. At this  time the hook on the bobbon carrior should pick up the loop in the thread. If not loosen the set screws on the back of the bobbon  carrior and adjust.  What type machine is it ? and model number ,, let me know. [email protected]

It sounds like your timing is in need of adjustment and unfortunately you need special tools and know how. So, you have to take it in for service.

Depends, it is a top load bobbon or does the bobbon go below the needle shaft. ???
Just remember that when you place the bobbon into the shuttle the tread always has to pull clockwise. So if you are holding the bobbon facing you the thread comes from the top to the right.
Lay the bobben into the shuttle making sure you pull the threads in a clock wise motion until you pull it under a metal point that looks like a flattened needle. This is also your bobben tension and then take your hand and turn the clutch wheel slowly. You will see the thread loop around the bobben thread and pull it up.

If you have a good needle in the correct way round and it will not pick up the thread then you may need to retime the machine which you can do yourself if you email me, [email protected]

what type of machine do you have?

is it a top drop in bobbin or bottom.

re-thread machine again
re-wind bobbin
pull both threads to back and hold for the first 2-3 stiches

when you picked up the machine after repair did they show you that it worked?
if all else fails, then your timing could still be off.