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45 2N Plunger that connects to the Control Arm Yoke is Bent


 
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allenlane
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PostPosted: Mon Dec 04, 2017 5:14 pm    Post subject: 45 2N Plunger that connects to the Control Arm Yoke is Bent Reply to specific post Reply with quote

Can't really tell from my shop manual how difficult it is to take out that plunger rod inside the control spring. Has anyone ever straightened one? Are they easy to bend in the first place?
 
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Dean
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PostPosted: Mon Dec 04, 2017 6:13 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

If the plunger inside the draft control spring is bent you will, no doubt, find considerable damage to the mechanism inside.

Dean
 
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allenlane
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PostPosted: Mon Dec 04, 2017 6:22 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

Uh Oh - How do you bend one? I would think you would have to back into to something(compression) pretty hard to bend it. Doesn't appear you could bend it by pulling on it (tension).
 
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JMOR
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PostPosted: Mon Dec 04, 2017 7:34 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

allenlane wrote:
(quoted from post at 22:22:23 12/04/17) Uh Oh - How do you bend one? I would think you would have to back into to something(compression) pretty hard to bend it. Doesn't appear you could bend it by pulling on it (tension).
Think about it.....if you were plowing an hit a rock, that will be compression on the top link.
 
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Dean
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PostPosted: Mon Dec 04, 2017 8:28 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

The most common scenario is driving into a significant depression, e.g., ditch, gulley, etc. with a lengthy implement, e.g., rotary cutter, disc, etc., connected to the three point with a rigid top link. When the trailing part of the implement contacts the ground, the rigid top link compresses the spring. Enough force will damage internal components.

Dean
 
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Dollar Bill
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PostPosted: Tue Dec 05, 2017 1:20 am    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

allenlane wrote:
Can't really tell from my shop manual how difficult it is to take out that plunger rod inside the control spring.

Removing the yoke will be the most difficult part due to fine, rusty threads. Heat yoke with a rosebud to break the rust bond. Don't crank too hard on the yoke or you will mangle the connector link.

You could straighten the plunger but as Dean pointed out, their is likely more carnage inside the lift cover. Used, original lift parts are plentiful. Tear it down to see what you will need before shopping for parts.

With the introduction of new parts, a lift realignment will be prudent.

Are there any other problems you need to address while you have the lift off?
 
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allenlane
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PostPosted: Wed Dec 06, 2017 7:59 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote


Bill called it. Getting the yoke off was tough. I really don't want to take the lift cover off now if I can avoid it. It appears that I can reach the bent section of the plunger with a rose bud without taking the cover off to straighten it. At most I'll be doing some mowing, no plowing so don't really need the draft control. What is the worse thing that can happen if I try to straighten the plunger with heat without taking the cover off?
 
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Dollar Bill
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PostPosted: Wed Dec 06, 2017 10:22 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

allenlane wrote:
What is the worse thing that can happen if I try to straighten the plunger with heat without taking the cover off?


Give it a try and keep your fingers crossed that nothing broke off and fell down into differential or PTO shaft.

Don't heat the plunger more than enough to straighten it and don't quench. Let it cool with ambient temperature.
 
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allenlane
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PostPosted: Sat Dec 09, 2017 7:03 pm    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

Very easy to straighten the yoke with a torch. Was able to pull it out enough so torch flame was never inside the housing.
 
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Dollar Bill
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PostPosted: Sun Dec 10, 2017 12:24 am    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote

Glad it worked out for you - How does the lift respond?
 
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allenlane
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PostPosted: Sun Dec 10, 2017 11:17 am    Post subject: Re: 45 2N Plunger that connects to the Control Arm Yoke is B Reply to specific post Reply with quote


Well good news and bad news. Good news is lift raises fine, but it will not lower. Is it supposed to lower without any weight on it?

Bad news is that I'm guessing while that plunger yoke plate was loose, water got into the hydraulic system. I pulled out the Hydraulic dip stick before picked it up, and only saw hydraulic fluid. Also guessing the tractor had set for so long that the oil was sitting on top of the water. Now that I've been running the tractor the pump has mixed it all up.....now looks like mustard ! Not good.

What is the best way to get all the water out of the system? I'm draining it but doubt I'll get it all.
 
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