I bought this 604 model no manual can u pls explain how to put the metal bobbin plate back in ty?

SOURCE: Need to replace a bobbin cover plate

Hi,

Here in Australia, the dealer would get it in for you. The 'manufacturer' / distributor usually don't get involved with customers! I'd find a dealer near you and ask!

Good luck!

SOURCE: Bobbin thread getting caught

Check your Instruction manual - if you have taken the bobbin case apart to clean it, the shuttle must be reinserted with the little tab pressing against the piece you mention. It is under page 45 - "Caring for your machine" in my book. I missed it the first time I cleaned and oild mine.

SOURCE: Bobbin Case

I'm having a similar problem today. I took out the bobbin case and when I went to put it back in, the whole system locks up. I've tired cleaning, changing needle taking the metal plate and piece that holds bobbin case out and put it all back in after cleaning. Nothing. My symptom is I can't get a complete stitch, the needle goes down, the whole deal acts like it will work and as soon as the arm of the bobbin case gets to 8 o' clock on the gears, It jams and won't hardly move. I cannot pull the bobbin case out easily after this. Perhaps there is someone out there that can help us!

SOURCE: Bobbin Case

ok Sim this is a bit tricky but not to tricky first turn the handwheel toward you until the hook is at one o clock postion then slide the case without the bobbin in into the hook area you may have to work the handwheel back and forth alittle but it should slide in just remember that the case should ride in the rim. also take the needle out first that way you wont get stuck trust me it happiens.

SOURCE: My needle was hitting the

The most common reason for this is that the bobbin case is inserted the wrong way. There's a slot on the bobbin case. When it's inserted into the machine this should face up. The needle comes down through this slot and picks up the thread from the bobbin. If it's put in the wrong way the needle hits against the case and cannot get through to the thread on the bobbin.
The other possibility is that the new needle doesn't fit properly. It may not be pushed fully up into the machine. Sometimes this can happen if the needle is too thick for the machine or if the screw wasn't loosened enough to allow the needle up fully.