RSB 1300

Post your questions or problems you are haviing with your Yanmar tractor here.

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Two Cedars
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RSB 1300

Postby Two Cedars » Mon May 18, 2020 7:30 am

I just purchased a Yanmar UFO Tiller and believe it is a RSB 1300, it has the auto leveling control box. Where can I get a users manual so that I can service the tiller? If manuals are not available, what are the oil capacities for the gear boxes?

Aaron
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Re: RSB 1300

Postby Aaron » Mon May 18, 2020 11:54 am

Nothing was ever printed in English for those so I'm not going to be much help. I would just fill the boxes to the fill mark (or fill plug).

Two Cedars
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Re: RSB 1300

Postby Two Cedars » Mon May 18, 2020 1:06 pm

There is a metal plug near the bottom of the main gear box. Is that the fill plug?

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Re: RSB 1300

Postby Aaron » Mon May 18, 2020 1:19 pm

Would it be possible to attach a picture. There will be a plug at the bottom (drain) and possibly a plug half way up or so where you add oil until it runs out that point. Then also a plug (cap) at the top to fill.

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Re: RSB 1300

Postby Two Cedars » Mon May 18, 2020 1:40 pm

Will send pictures tomorrow. Not currently at home

winston
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Re: RSB 1300

Postby winston » Mon May 18, 2020 2:20 pm

https://www.tractorbynet.com/forums/fil ... 1300-4-jpg

This is suppose to be a RSB1300. Pretty sure that is a dip stick.

Two Cedars
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Re: RSB 1300

Postby Two Cedars » Mon May 18, 2020 6:20 pm

The only clear marking on the tiller is "UFO". While searching for literature, I came across numerous pictures of the rsb1300 and it looks identical to the unit I purchased. Not sure about the id, however sure that there is no dipstick

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Re: RSB 1300

Postby Two Cedars » Wed May 20, 2020 8:48 am

Aaron, attached are pictures of the main gear box, the gear box has a plastic filler plug with no dipstick. It was a one owner tiller, and according to previous owner, never has a dipstick
Attachments
IMG_1921.jpg
Back side of main gear box (facing tractor PTO output) plug on bottom
IMG_1921.jpg (61.12 KiB) Viewed 1525 times
IMG_1919.jpg
Front side of main gear box, facing away from tractor.
IMG_1919.jpg (116.42 KiB) Viewed 1525 times

Aaron
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Re: RSB 1300

Postby Aaron » Wed May 20, 2020 1:51 pm

My guess is that there was probably a certain procedure to use the drain hole as a fill level indicator. Something like 'set the tiller so that the arms are level and add oil to the gearbox until it runs out the drain plug'. Im not sure what the procedure would be though. Id probably fill it 1/2 way up and call it good. Just a guess though.

Maybe Winston has a suggestion?

winston
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Re: RSB 1300

Postby winston » Wed May 20, 2020 5:29 pm

My tiller is an RS1300N. It has a dipstick in a tube that looks very similar to the one shown in your picture. When the level is correct the fluid is just a hair over 6-1/8" down from the top of the tube. That puts the level just a little below the bottom of the shaft but high enough that bearing and gears would still catch lubricant as they turn. I believe no higher that the bottom of the shaft but close to it would be the correct level to run. Just my opinion. All this with side gear box setting straight up.

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Re: RSB 1300

Postby Two Cedars » Thu May 21, 2020 6:13 am

Winston Thanks. Do you know of a parts store source for 1300N parts like a dipstick

Aaron
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Re: RSB 1300

Postby Aaron » Thu May 21, 2020 7:51 am

Im not sure your tiller ever had a dipstick. Below is an RSB1301 (closest I could find).

1.jpg
1.jpg (85.59 KiB) Viewed 1474 times

winston
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Re: RSB 1300

Postby winston » Thu May 21, 2020 8:02 am

Two Cedars wrote:Winston Thanks. Do you know of a parts store source for 1300N parts like a dipstick


I agree with Aaron, yours probably didn't have a dipstick. I think you need to figure out a way to establish a level right below the shaft. That #8 plug in Aarons drawing would look to be about the correct level. Is your plug shown in picture about the same height? Just wondering with side gearbox in the vertical position if that plug might be your correct fluid level.

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Re: RSB 1300

Postby Two Cedars » Thu May 21, 2020 3:51 pm

The #8 plug on my tiller is at the bottom of the gear box, I would guess that this is a drain plug. The #9 plug is above #8 and on the back of the gearbox (facing away from the tractor). Both plugs look a bit low to be used to identify proper oil level. Will try measure 6 1/8” from lip of plastic filler neck and see how that looks

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Re: RSB 1300

Postby Aaron » Fri May 22, 2020 8:08 am

I didn't see that #8 in my drawing but I bet that is the fill level plug for that model. If your plug locations are in different places it would be the higher up plug. It wouldn't make sense for that to be a drain since there is no way you could ever get all of the oil out. The manual would probably tell you to check it with the tiller level or maybe a certain bracket in the level position.


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