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Safety First 8N Owner

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*8N-B *8N38007

11-07-2000 07:38:21

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In regarde to the a person removing the "right inspection plate" and puting their finger over the "pressure relief valve" to find out if it is blowing oil out, with the moter running and gears turning.

I have "second thoughts" about this procedure. Having lost a small part of my finger years ago in a related way, ten 8Ns would not be worth the loss of a finger or hand.

Is this procedure fool-proof and safe?

I would like to be informed.

THANKS IN ADVANCE

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Nolan

11-08-2000 03:49:59

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Re: Safety First 8N Owner in reply to *8N-B *8N380077* , 11-07-2000 07:38:21

Nothing in life is fool-proof, especially tractors. From operating them to working on them, they are inherently dangerous.

That said, I am one of those that will stick his hand in there. The only thing moving is a smooth, well oiled, shaft. To get hurt, I'd have to get my finger in between one of the scotch yokes and a head on the pump. Not easy, but it could be done. I would then have a squashed finger tip.

However, I also know where things are in that whole body. If you do not, and cannot figure it out with the machine off, then by all means, do not stick your finger in there to inspect the characteristics of the pressure relief valve.

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Larry 8N75381

11-07-2000 16:54:21

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Re: Safety First 8N Owner in reply to *8N-B *8N380077* , 11-07-2000 07:38:21

Yes, the motor has to turn to drive the pump. But, as to having gears turning, unless the tractor is moving, making sticking your hand into the inspection port hard, if not down right suicidal, there are no gears turning in the differential case. The gears in the transmission will be turning but there is a "wall" between the transmission and differential. So the only moving thing in the differential case is the PTO shaft. It, being round, is not likely to grab fingers -loose clothes would be another story.

That said, I still tend to like Claus's method better. To that I would add, make sure the tractor cannot roll or otherwise move when you are working with the motor running and you are on the ground next to it reaching in or even just looking in the inspection port.

My 2 cents.
Regards,
Larry

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Claus

11-07-2000 07:46:25

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Re: Safety First 8N Owner in reply to *8N-B *8N380077* , 11-07-2000 07:38:21

Even though we have some esteemed and informed individuals who endorse this procedure, I think that one should never under any circumstances put a member of their body close to any turning device. The safe way to check to see if the relief valve is working, is to remove about 2 or so gallons of the hydraulic fluid and then the relief valve will become visible...and you can eyeball to see if it is blowing out fluid..
Happy and Safe Motoring
Claus

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Charlie in TX

11-08-2000 08:14:56

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Re: Re: Safety First 8N Owner in reply to Claus, 11-07-2000 07:46:25

Correct me if I am wrong but there are 2 shafts to reach past to do this procedure, the drive shaft on top and the pto shaft on bottom. Then the relief valve is at the very bottom. When I had 2 gal of fluid removed I couldn't see that far down.

I had a thought that the safest and cleanest way may be to place a hose over the valve. Lift with a load. Look at the end of the hose for oil. What is your opinion of the hose method? Does the relief valve relieve the presure at the end of the valve?

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