I have lost my instruction book for my 4 cycle Ryobi motor. I can connect weedeater with string, with blade; and a branch cutter. I need to know what kind of oil I need to add. I would like to print out the instructions to my tool. I have had trouble since the beginning, getting it to start and then keeping the motor running. Usually I can get started enough times to run through one tank of gas. I thought it might be low on oil as the shaft with the blade now does not want to turn.

Do you mean the Ryobi 40V X-head cordless string trimmer? This model has a 12-15" cutting width. For the 40V battery, you remove it by pressing and holding the latch button at the bottom of the battery (on the side closest to you). Then pull the battery out of the power head, exactly reversing how you slid it into place. Do not release the latch button until the battery slide free of the tool. The latch is usually stiff and takes a lot of force to hold down. See Fig 4 for the position of the latch in the manual: https://images.homedepot-static.com/catalog/pdfimages/fa/fab7f50b-d65b-40de-9e1c-5fecce2436f5.pdf . The same directions apply to removing the battery from the Ryobi 40V string trimmer with the fixed head.

For the 18V batteries, there are two latches, one on each side of the battery. Press and hold again. These are so stiff that my mother and I often need someone else take off the battery from any of the Ryobi tools. (We're both about 5' tall and 100 pounds. The tools aren't designed for our proportions.)

I hope this helps.

Cindy Wells

replace the starting pull cord Graeme, Check the attached links,instruction and guides, Good luck
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You can't use the blade on most string trimmers unless you have a brush cutter style then you would unscrew the trimmer string head and attach the blade with the adapter that came with the unit.

grass,string or vines can get wound around the motors shaft, you will need to take off the spinning head to remove debris from motors shaft

Hi marius65..
Use the normal mixture for 2 cycle engines
50 to 1 mixture...1 pint of 2 cycle oil to 6 gallons of gasoline
Please rate me
Bud

I found the manual for the Ryobi hedge trimmer here: fr.ryobitools.eu/local/uploaded/catalog/e_RHT500R-600RL_UM_UK_v1.pdf . The bolts you describe hold the blade to the hedge trimmer's motor. They shouldn't have come loose. However you can check if any of the bolts are loose or have backed out of the motor.

I would suspect either a part of the branch is stuck between the blades. I have one of the small edge trimmer which gets noisy when I get a woody weed stuck in the unit. Unplug the trimmer and look at the blade for some bark stuck between the layers. On each side there are multiple blades that overlap at parts of the cutting cycle.

A parts diagram for the RHT500R is available here: http://www.magic-parts.co.uk/acatalog/Ryobi_RHT500R.php .

II hope this helps.

Cindy Wells

you shouldn't need to mix oil with gas on a four cycle engine. this is for two strokes.

there is definitely a problem in the drive shaft. check to make sure there's nothing blocking the mal and female ends. if there is, clean it out and lubricate it so that the male will attach to the female slot. also check to see that both ends are not stripped. if the motor portion of it is stripped, which most liekly is out culprit, then it needs to be replaced, or you need to get a new trimmer. if you do, i recommend the Ryobi model CS26 gas trimmer.if the atachment shaft is stripped, the the attachment needs replacement. if you replace the motor portion you need not lubricate the attatchment slot. if the attachment is stripped, it needs to be replaced, but im quite sure the female end in the motor shaft is our problem. it could also be broken inside the shaft. make sure nothing falls out if you hold the attatching ends to the ground.

just use about 3 to 4 ounces of 2 cycle oil per gallon and you should be fine. a little extra lubrication wont hurt it

If you go to the troy built site you can download a manual for your model. I is in pdf