PTO hard to engage Lift drops

BigYoung

Member
The Smith dizzy, GB carb and new head gasket have my front mount N purring.

Next issues are PTO is hard to engage and lift drops...

The N had a 5ft hog chained with lift chained up, but left hog at farm when I brought N home to get running.

Lift does work, but is slightly jerky without a load. I removed dipstick cover and looked inside with PTO engaged and didn't see any turbulence in oil-but lift didn't have a load either. Arms stay up overnight w/o load and today rigged 3 batteries to lift as a light load to test. Lift falls from 32"high to ground in 5 hrs.

This is my first tractor. I have not removed PTO shaft yet to see if splines are twisted. What could be causes of the sticky PTO shifter and leakdown?

Thinking I should change relief /safety valve in pump. What else should I look at, change or test? Thanks for comments.
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Gents,

I've been reading great old Zane, Bruce and JMOR's old posts and pics and realize the batteries are a light load, but that's all the weight I have. I need to push the clutch in to see if load drops and I need to look into inspection port while load is on lift to see if oil is leaving from lift cover.

Also my control arm looks straight and lift has full range.

Will perform more tests and inspections and maybe try TOH's clear hose to relief valve bucket test and report back. All comments are apprieciated.
 

I have never been overly concerned about a lift dropping when left up and not running. If it will lift what i have mounted on it and stays up when running, I think that is good. One should never leave a mower or anything up in the air anyway when not running.

"fix it until it is broke"
 
Also read tip 16 of the 75 tips and have more direction. What are possible causes of the difficult engagement of PTO lever?

Twisted shaft and ??
 
To shift smoothly, the PTO shifter requires that the splines be in good shape, the bearings for the transmission countershaft and the front of the PTO shaft not be worn out, and that the shifter fork shaft move freely in the housing. Check out these things and report back.
 
You don't have enough drop to mess with. When it drops a blade to the ground in less than 30 minutes you might THINK about doing something about it. The old parts you have in there now are way better than cheaply made replacements. When you park it drop the implement. You don't want doggie sleeping in the shade under it and then getting trapped. You would get to sleep in doggie's house for a while.

If that N sat outside a while I would bet that the rearend got water in it. You might have some rust in there binding the movement of the PTO lever. Use it a while. You will leave the pto engaged most of the time anyway.

Ps - I can remember when I was young and our N was a fairly new tractor we would park it with the implement up sometimes. I can recall being surprised if that implement wasn't still completely up after many days. I guess I have sagged a lot in the years since, too.
 
(quoted from post at 22:20:28 04/24/15) Also read tip 16 of the 75 tips and have more direction. What are possible causes of the difficult engagement of PTO lever?

Twisted shaft and ??
b:8ae7c58ec8][i:8ae7c58ec8]

BYB;
Couple of ??'s for you to ponder!!

Have you adjusted the clutch, as per the FO4 Manny, for proper engagement, and free-play????

When you try to engage the PTO lever, does it grind as it goes into gear?????

With the engine off.....try to engage the PTO lever?????
Working smooth, that way???
If it still binds up.....Non-use may be the culprit..(rusty!!!!???)
If it engages smooth, with engine OFF....Got a feeling the clutch needs to be fine-tuned (adjusted)

Gary :?: [/i:8ae7c58ec8][/b:8ae7c58ec8]
 
Hi Gary, Here are your questions and answers.

Have you adjusted the clutch, as per the FO4 Manny, for proper engagement, and free-play????

When you try to engage the PTO lever, does it grind as it goes into gear?????

With the engine off.....try to engage the PTO lever?????

Yes, engine off, clutch pressed still hard to engage.

If it still binds up.....Non-use may be the culprit..(rusty!!!!???)

Could be rusty; changed sump fluid 3 years ago and it has since sat covered shed until I got her to LA to get running.

If it engages smooth, with engine OFF....Got a feeling the clutch needs to be fine-tuned (adjusted)

Not sure about how to adjust clutch; looked at Operator Manual and I think I have the 3/4" freeplay.

Thanks for suggestions- I think my PTO shaft splines may be twisted. Check out my next few posts.
 
I wanted to test the lift for dropping with clutch pressed and lifted the back of my Chevy to the position at which the hog rides. It will hold the load with clutch depressed with engine running and stopped. And the drift down is still over an hour.

I will change the safety valve and move on.
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Jock,

I also have a slight wooble in the PTO shaft and wanted to see if it would slide out. I drained the sump and removed PTO bolts and tried to pull shaft with PTO engaged. Operator Manual gave no caution to disengage.

The PTO shaft assembly would only slide out about 1 1/2" and bind. At first, it would not slide back in.

I pushed and pulled and it would not slide out, it did go all the way back in. I thought to shift the PTO lever and it shifted nicely back and forth. Then i realized the whole shaft was moving in and out and i believe this suggests the splines are twisted. If you guys agree with twisted the splines probability I will just run it until I have to split for a clutch and deal with the shaft then.
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While i had the truck load on the lift I pulled the side cover again to see what I copuld learn.

With pump running, I did not see any spurts, only a steady drop of fluid from the pto shaft. I did see a slight amount of air bubbles but nothing I would call turbulence.
 

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