HYDRAULICS

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PAWPAW601
Posts: 11
Joined: Fri May 15, 2015 7:42 pm
Zip Code: 39629
eBay ID: pawpaw601
Tractors Owned: 545 FarmTrac
360 Long
9N Ford
640 Ford
641 Ford
2000 Ford
275 IHI diesel
2- VAC Case
1948 Farmall Cub
Location: Bogue Chitto MS

HYDRAULICS

Postby PAWPAW601 » Tue May 19, 2015 4:42 pm

Hello
Just cranked my 48 cub this afternoon. After I got it runnung fairly well I tryed the lift out but couldn't get it to say anything not even a grunt. Any sujestions where to start w/ trouble shooting the problem??
Paw Paw Nate
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Bob McCarty
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Zip Code: 80501
Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
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Location: CO, Longmont

Re: HYDRAULICS

Postby Bob McCarty » Tue May 19, 2015 5:12 pm

Check the oil dipstick and see if the level is high. If it is, the seal on the pump shaft is leaking hydraulic fluid into the crankcase. If the dipstick level is normal, check the level in the TC block and add hydraulic fluid if it is low. Was it working okay previously, or slow or jerky?

Bob
"We don't need to think more,
we need to think differently."
-Albert Einstein

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PAWPAW601
Posts: 11
Joined: Fri May 15, 2015 7:42 pm
Zip Code: 39629
eBay ID: pawpaw601
Tractors Owned: 545 FarmTrac
360 Long
9N Ford
640 Ford
641 Ford
2000 Ford
275 IHI diesel
2- VAC Case
1948 Farmall Cub
Location: Bogue Chitto MS

Re: HYDRAULICS

Postby PAWPAW601 » Tue May 19, 2015 5:17 pm

The crank case is high, just thought the old feller I got it from had put in to much oil. I have never seen it work just the the cub cranked today for the first time in 15 years or there abouts.
Paw Paw NateImage

Bob McCarty
Team Cub
Team Cub
Posts: 8477
Joined: Tue May 25, 2004 8:02 pm
Zip Code: 80501
Tractors Owned: Cubs, MH Pony, Shaw, Allis G, 1934 Silver King, JD LA and LI, Gibson D, David Bradley Tri-Trac
Circle of Safety: Y
Location: CO, Longmont

Re: HYDRAULICS

Postby Bob McCarty » Tue May 19, 2015 5:52 pm

It's hard to tell if you just need to replace the shaft seal or possibly rebuild the pump. Here's a link to a "how to" that shows the entire procedure. The o-ring replacement is about halfway through the how to. TM Tractor sells the pump kits or just the shaft o-ring. You'll need to change the crankcase oil and filter. You'll have to drain the TC block and manifold lines in order to work on the pump. I would suggest the whole kit or you may end up replacing the hydraulic oil a second time if the shaft seal doesn't fully fix the problem.
viewtopic.php?f=141&t=44196

Bob
"We don't need to think more,
we need to think differently."
-Albert Einstein

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tmays
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Joined: Wed May 11, 2011 8:59 pm
Zip Code: 39180
Tractors Owned: 1948 Allis Chalmers G
1947 Cub
1952 Cub

154 Cub LoBoy
Location: Vicksburg, MS

Re: HYDRAULICS

Postby tmays » Tue May 19, 2015 5:58 pm

Gear may have fallen off pump.
Thomas

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PAWPAW601
Posts: 11
Joined: Fri May 15, 2015 7:42 pm
Zip Code: 39629
eBay ID: pawpaw601
Tractors Owned: 545 FarmTrac
360 Long
9N Ford
640 Ford
641 Ford
2000 Ford
275 IHI diesel
2- VAC Case
1948 Farmall Cub
Location: Bogue Chitto MS

Re: HYDRAULICS

Postby PAWPAW601 » Wed May 20, 2015 7:40 pm

Thanks everyone for ur help. I'll post some results as soon as I get a chance to tear into it. :worthy:
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User avatar
PAWPAW601
Posts: 11
Joined: Fri May 15, 2015 7:42 pm
Zip Code: 39629
eBay ID: pawpaw601
Tractors Owned: 545 FarmTrac
360 Long
9N Ford
640 Ford
641 Ford
2000 Ford
275 IHI diesel
2- VAC Case
1948 Farmall Cub
Location: Bogue Chitto MS

Re: HYDRAULICS

Postby PAWPAW601 » Wed May 20, 2015 7:45 pm

Someone built it the first time why can't I do it to.
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Scrivet
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Location: MO, Potosi

Re: HYDRAULICS

Postby Scrivet » Wed May 20, 2015 9:47 pm

Before I tore into it to far after setting 15 years, I'd get the engine oil to the correct level (oil change) and fill the TC. Then see if it leaks. Most likely it will but then you will KNOW, not what we think is most likely or what we think it might be.

When you have a flat tire do you just slap a patch on the inner tube somewhere? Or air up the tube, find the hole, and then patch it? Always figure out what's broke and fix that, otherwise you may use a lot of patches before you get the leak covered. :D

User avatar
tmays
5+ Years
5+ Years
Posts: 2399
Joined: Wed May 11, 2011 8:59 pm
Zip Code: 39180
Tractors Owned: 1948 Allis Chalmers G
1947 Cub
1952 Cub

154 Cub LoBoy
Location: Vicksburg, MS

Re: HYDRAULICS

Postby tmays » Thu May 21, 2015 6:40 am

In other words, Scrivet, you're saying just check the fluid level? :-) :-) You know what they say about assuming something. Can't deny it, I made the assumption that had already been done.
Thomas

Scrivet
5+ Years
5+ Years
Posts: 2538
Joined: Sun Apr 19, 2009 9:51 pm
Zip Code: 63664
Location: MO, Potosi

Re: HYDRAULICS

Postby Scrivet » Thu May 21, 2015 7:34 am

In a broader sense I'm saying NEVER start fixing anything until you KNOW what is broke, (or what's broke may be you from all the parts you've tried). Figuring out what is broke gives you a better understanding of how it works, which makes fixing it the next time quicker and easier. Applies to most anything not just Cubs. :D


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