Motorized Mower: How to Maintain V-Belt Tension for Rear Wheel Drive Clutch with Small Spring

Question

Hello,
in the mower I have a loose belt for the rear wheel drive clutch. I have no idea how to keep him stretched. A small, strong spring fell out from under the cover, but nowhere can I see a place where it could be hooked and tightened.

Enclosed is a view of a small wheel on the axis of the motor and the clutch with the take-up wheel. There are no other "burrs" apart from the aforementioned spring.

Anonymous · Accepted Answer

This spring is fastened with one end to the mower housing and the other end to the drive gear so that it stretches the belt.

rou123 · Answer

Hello, I marked you in the photo with a red color where you should attach this spring. One half goes into the housing and the other half goes into the red color.

zgrzezly · Answer

Logically, it should be as you wrote, the spring pulling the clutch "up" in the indicated place will stretch the belt - but in the housing there is no attachment point for the other end of the spring, no eyelets etc. Maybe some element should be there ??

rou123 · Answer

And what does the spring that fell out look like?

Anonymous · Answer

Usually it is a small hole, check carefully.

zgrzezly · Answer

there is no fastening in the housing. I did as in the photo below. I wonder if this was the original mount. The belt is kind of tight.

Anonymous · Answer

This is also the case when originally buttoned.

xaver_compz · Answer

What exactly is a spring? What is its dimension? I lost one, unfortunately.

LENIWIEC_PL · Answer

Hello. I have the same drive on a mower with a Tucumesha engine. The spring, from what I remember, is about 3 cm long and as strong as possible (1 cm thick), but do not think that you will find one because it depends on where it is attached. The drives on many mowers are the same, but the spring mounts are different. My friend has the same spring mount as shown in the photo and I already have a longer spring and it is attached at the top through a rectangular hole in the housing.

xaver_compz · Answer

Ok, then I will clarify, it's about the Viking 448TX.

Boryc2014 · Answer

Hello. And try to remove the old one and buy a slightly smaller one, but a new one, so that it is not taken out and then see what will happen. And on this belt, what you have, the drive does not work well, i.e. it slips ????

xaver_compz · Answer

Belt loose, spring in the grass, not to be found. You need a new one.

Mteusz · Answer

and for me everything is in place, only I have a loose rope from the drive, and the drive is working all the time and it cannot be disconnected with the lever while mowing.
All in all, you can mow and the drive works all the time, but in the long run it is tiring, especially when you have to turn, etc.
I thought that the line broke or fell, but everything is fine only with this metal box, where the line is all loose ...
I got into it, and I still don't know

Thanks in advance for the info,
kisses
mteusz

piter69 · Answer

Hello
Mteusz, if you have a drive as shown in the first photo of the author of the topic, then under the gear drive wheel there is a lever to which the drive engagement rod is connected. On the other side of this lever, a spring is engaged, which is to switch off the drive after the lever is released. This is the drive in the Honda Iza. In my case, the spring broke and the lever did not return and the drive was working all the time. If you have a similar drive design, this could be your fault.

Norbert Chrobot11 · Answer

Hello.
Maybe someone here will help me. I have a problem with the drive in the Makita PLM 4618 mower. The question is how should they be, or how should the spring / springs be installed or installed?
Thank you.
Goodbye.

Motorized Mower: How to Maintain V-Belt Tension for Rear Wheel Drive Clutch with Small Spring

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