Circular Saw Blade Issue: Engine Starts but Blade Doesn't Rotate, Stops During Cutting

Question

Hello, I have a problem with my chainsaw. Well, the saw switches on, the engine starts and the disc stands still, it only starts after a while, but any cutting attempt ends with the disc stops.
As if something was loose.
The shield from the outside holds well to the base, it is quite unscrewed

RADU23 · Answer

What kind of saw is it? He did not provide a model colleague or any photo.

henrykS · Answer

Maybe tighten properly?

siejson · Answer

This is a regular Tesco chainsaw does not go crazy, but I did not exploit it too much It is tightened to the maximum

ta_tar · Answer

Tightening here will do nothing. The connection between the motor shaft and the blade shaft is probably damaged. Not knowing what model this is, we will not invent here anymore.
We wrote simultaneously. The name of the chainsaw from Tesco will not give us anything. Please provide some data and a photo.

henrykS · Answer

Sometimes when the saw (blade) is thin, the clamps cannot tighten it. Look carefully for a gap.

ta_tar · Answer

I do not know if your attention accidentally does not apply to the angle grinder discs because we have different thickness discs for it. As for the saw, it's probably not so. I may be wrong but I have a few different saw blades (ordinary saw blade) and the main part of the saw blade is of the same thickness. Here, I suspect a combination of engine and shaft on which the shield is mounted. I met with different ways of joining a wedge, a self-locking coupling, and a spline.

siejson · Answer

The bolt in which the shield fixing screw is screwed is loose That is, when I turn on the saw, the engine turns, holding the finger behind the pin stands still

wiesiekmisiek · Answer

The gearing is now without teeth. Szrot. It is not profitable to repair because the rotor costs at least 60 PLN plus a gear around 15 PLN. The whole new saw is a cost. about PLN 120 You have to spin it, but it's probably as I write. You buy a new one, you give it fire, and if something falls apart, you give it to the market or you need to add some money and buy some profi.

ta_tar · Answer

Don't discourage the author right away. Maybe something will not be taught on such equipment. For science, I give - I do not know whether this model is exactly but it is enough for science.

Anonymous · Answer

I do not know why you conclude that the saw has a gear, usually the most powerful element of similar power tools. The saw should be disassembled, no specialized tools are needed and the blade drive is removed. I focus on disconnecting the spindle - gear wheel connection. This connection, depending on the model, is usually made for a shuttle, sometimes for a rivet or tubular rivets, less often for a multi-wedge or an inseparable push-in connection. This must be discussed. The dismantled item may look like this little otherwise - the photo is for a brand tool. Regards

wojtek1234321 · Answer

In chainsaws of a similar type, the gear on the rotor axis is most often used, in my opinion it is too delicate for the loads it carries and works out too quickly. So for example this (red arrow): At the same time damaging the mode of meshing with it. Checked visually, for several years using similar devices (four out of four have just lost their drive in this way, the fourth lost the brush holder, overheated and finally melted plastics), but it's not a pity because they did.

Anonymous · Answer

I did not write that you are wrong, I wrote that I bet on another disease. Like col siejson will take the machine apart, we'll find out the real reason. Regards

wiesiekmisiek · Answer

Not exploited so much or actually? For those 600 Watt and basically small swabs (because now there is a mania of overexposure by manufacturers, it is known from which country) must be a very sharp shield. We start cutting only when the saw reaches maximum revolutions, we introduce the saw into the material slowly and continue to listen to the work of the saw. We do not press the engine to slow down. All you need to do is hit the material several times with the saw blade when the engine starts and it is already sweeping. I know what I write because for a long time I have used this tool for a long time and I started with Lithuanian with a capacity of 2 KW which today is still functional and aged in the workshop closet due to sentiment. If these cutters rotate on the rotor, the cost of the rotor itself is known. But rightly someone noticed that without demolition it can only be predicted, although I bet on my and colleagues' diagnosis at 100%. Before the wedge breaks down, the teeth will fly in several drive units. Col. Paweł, I answer - my conclusions are taken from experience acquired through long use of power tools in carpentry.

ta_tar · Answer

I am not sure if there is such a transmission as you can see there. In my connector there is a schematic diagram of this type of chainsaws. Sprocket # 2 in the diagram has rather straight teeth, which would suggest a different way of transmission. We will not know anything more until the author answers here and writes us whether he has already undressed the saw or there is no time for such an action.

wojtek1234321 · Answer

Maybe you are right, which does not change the fact that all these saws of this type are based on a very similar gear model. As you can see in the drawings, is this an example (drawing) of an unknown brand. Is even Makita as in the following (attachment) service pdf and website with parts. This rack also meshes / works with a small rack on the rotor axis, which you cannot see in this attachment and the damage may be the same. The fact that it has straight teeth is only less comfortable because the transmission is louder and vibrates more.

Wujek lutek · Answer

Do colleagues perhaps know where I can buy a shuttle key nr. org 5131032545 for the RTS1800 saw?

miszapopiel1 · Answer

>>16968211 . Just to add, saw blades are of different thicknesses

Circular Saw Blade Issue: Engine Starts but Blade Doesn't Rotate, Stops During Cutting

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