Case won't opem

I have a Ryobi Model RY28040 straight shaft line trimmer. In my case I replaced the complete String Head Assembly that includes the String Head Housing, Spring, and Spool and the string still did not advance. I then discovered that the bolt in the Spool Retainer cap (the red cap that attaches the spool to the shaft) was fused and not moving. The bolt needs to be loose inside the cap in order to allow the spool to move in and out by the spring. I loosened the bolt and fastened the spool back onto the shaft. Fired it up and bumped it a few times and the line began to advance. Turns out I probably only needed to replace the Spool Retainer rather than the String Head Assembly.

Sounds like fuel issue. Check the fuel line for cracks. Also the diaphrams in the carburetor could be deteriorated due to Ethanol. Soak and rebuild.

You have to hold in the two tabs at top of spool assembly

All internal combustion engines use oil of some description. I take it this is a 2 cycle engine and you have not added oil to the gas. If this is the case the engine is locked up, and must be replaced. Sorry.

Yes you can replace the original battery. It is recommended you have it done by and Authorized Service Dealer.

When the battery no longer holds a charge, you can purchase a new battery and have it installed at your
Authorized Service Dealer. If you want to discard the trimmer, remove and recycle the battery before
discarding the trimmer.

1. Remove the 2 bolts and nuts securing the trimmer handle section to the black center section.

2. Remove the 6 screws securing the two halves of the handle section together and pull the halves apart.
3. Remove the battery and disconnect it from the wire leads.

4. Discard the trimmer.

5. Recycle the lead-acid battery according to local codes.


Find you nearest dealer here:

https://homeownersolutions.toro.com/portal/server.pt?space=CommunityPage&cached=true&parentname=CommunityPage&parentid=2&in_hi_userid=30166&control=SetCommunity&CommunityID=226&PageID=30037

The part number for your battery is: 106-1905

If you enter your model number on this site, you can get a complete parts list that should include the charger.
https://homeownersolutions.toro.com/portal/server.pt/community/product_center/225

Go here....you can download the manual....It's free!
https://homeownersolutions.toro.com/portal/server.pt/community/product_center/225#productDetailsPage

You don' say which model, but if you go to the link below:
https://homeownersolutions.toro.com/portal/server.pt?open=512&objID=214&PageID=0&cached=true&mode=2&userID=19461
and enter the model number you should find it there.........Good Luck........Let me know if you are successful.......Cornwellnet (UK)

Cut two separate pieces of string, about 7 ft. each.

Stick the end of the line in the hole on the inside of spool.

Wind clockwise onto spool, putting the line that is closest to the ground on first.

Once you have winded this piece on, lock the last 4 inches of line through the slits on spool.

Repeat process for second piece of line, locking the last 4 inches in slot opposite the other locked in piece.

Put the spool on the trimmer, feeding the end of lines through either hole on trimmer.

Before you push the spool all the way on, pull the strings out of the locked position.

Jim

Check to ensure that the string is the correct size as specified in the owners manual. If ok check age of the string. If old it has a tendancy to be brittle. If new and supple try letting the trimmer get up to full speed and let the tip of the string do the cutting. Avoid taking on too much at once with this trimmer as the electric and battery trimmers are not as powerful as their gas counterparts. I hope this helps.