180 hydraulics question
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=25537
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Topic: 180 hydraulics question
Posted By: Fellenz
Subject: 180 hydraulics question
Date Posted: 10 Feb 2011 at 10:04am
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Hello, I have our 180 in the shop getting it ready for the season ahead and have a few questions about the hydraulics. We have a 500? series loader on the tractor and would like to add forks so we can use the tractor to unload pallets of material. However from past experience I've only been able to lift ~1600 pounds with the loader and many of the pallets we'll be getting will be around a ton or a little heavier. I've measured the hydraulic pressure and we're right around 2,000 PSI at 2250 RPM, going through the books it appears this is about right. However when I try to lift anything heavy with the loader it always sounds like I'm tripping a pressure release? Is there an adjustment on the valve block that I can make to help? How much capacity should I be getting with this loader? I would expect well over a ton as our 160 will lift a ton with no issues. Am I expecting too much from this machine? Thanks, Erik |
Replies:
Posted By: Jim in MO
Date Posted: 10 Feb 2011 at 10:42am
| I have Kokyer565 series loader on a 180 we have 10:00 x 16 tire and18.4x30 rear we lift 3000 pounds with it. Seeds corn, pro box with seeds beans I like box over the pallets. We do not used 2250 RPM Around 1600-1800 RPM. I have HD cyl on my loader. Should be OK. Jim |
Posted By: Eric[IL]
Date Posted: 10 Feb 2011 at 10:58am
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I have an AC 500 loader on my 1967 One-Seventy tractor. I experience the same load issues as you are explaining. I have all 4 hydraulic lines attached at the rear of the tractor, which flows all the oil through the tractor valves.
Below is the operating instructions 500 series hydraulic farm loaders for d17, d17iv, & d19 tractor manual specification sheet as it reads:
Liffing capacity @ full heigth: 2300lbs
Carrying capacity @ 3' height: 3400lbs
Breakaway force: 4000lbs
Cycle time, up: 5.0 seconds
Cycle time, down: 2.4 seconds
Pump capacity: 11gpm @ 1650rpm
It is a handy loader combination on the One-seventy tractor.
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Posted By: CTuckerNWIL
Date Posted: 10 Feb 2011 at 11:27am
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Fella I used to work for, went out and bought a set of forks off an old fork truck. We made brackets for the 3 point lift arms and added a top link bracket. Hooked to the 170 with a hydraulic cylinder in place of the top link and we could load or unload anything on a pallet. It puts the weight on the back instead of the front spindles. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Fellenz
Date Posted: 10 Feb 2011 at 11:33am
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Ok, I've done a little more playing around, I have 2k PSI (or just a bit more) on all four remote outlets on the tractor that the loader is plumbed into. Eric, Does the spec sheet mention a pump pressure? The only possibility I can see is the loader being designed to run on a 2500PSI pump, that would give roughly 25% more lift and explain my issues. |
Posted By: Fellenz
Date Posted: 10 Feb 2011 at 11:35am
Unfortunately that option won't work for us unless we built a full fledged three point forklift as most of the pallets we'll need to unload will be coming off a semi trailer. Thanks for the suggestion though! |
CTuckerNWIL wrote:Posted By: sandylakeimplement
Date Posted: 10 Feb 2011 at 11:57am
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That is nearly all you should expect but boosting the relief to 2300 would help. The factory relief spec is 2350 + or - 50. The pump flow output is rated at 2000 psi but the relief is higher. Also check to see if you have any drift down when holding a load - if so you cylinder piston seals could be leaking internally which would cause a lazy lift. Bill at S>L>I ------------- Sandy Lake Implement Sandy Lake, PA 724-376-2489 www.sandylakeimp.com FIND US ON FACEBOOK |
Posted By: Eric[IL]
Date Posted: 10 Feb 2011 at 12:02pm
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Yes, it says:
In order to operate loader efficiently, the tractor hydraulic system should be checked and adjusted to the following relief valve pressures.
D-17 tractor w/ front mounted pump - 2000 psi max.
D-17iv tractor - 2200 psi
D-19 tractor - 2300 psi
The tractor oil sumps on the D17iv tractors use a Type "A" suffix "A" automatic trans fluid such as Allis Chalmers Power Fluid No. 322. I am thinking that is what your 180 would be using? Sorry I don't have an AC 500 loaders operators manual for the 100 series tractors.
My 170's manual hydraulic pump specs read:
type: gear
make: webster
delivery @ 1800 rpm for triple pump: 18.3gpm @2000psi
Delivery of individual pump sections at 1800 rpms:
lift: 10gpm
power steering: 6gpm
traction booster: 2.3gpm
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Posted By: CTuckerNWIL
Date Posted: 10 Feb 2011 at 12:07pm
I guess I misspoke. HE bought a mast from an old fork truck. The mast is mounted to the tractor and the forks go to the top of the mast. Semis were pretty easy to unload. You might have to drag a pallet to face the side if it was loaded from the back, but that was never a problem. ------------- http://www.ae-ta.com" rel="nofollow - http://www.ae-ta.com Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF |
Posted By: Fellenz
Date Posted: 10 Feb 2011 at 12:13pm
Ok, I see what you're saying. I had the opportunity to buy a mast like that at an auction with all the hydraulics and side shift for just a few hundred, still kicking myself for not dragging it home. |
Posted By: skipwelte
Date Posted: 10 Feb 2011 at 12:29pm
| Make sure your guage is accurate, you can adjust the relief valve up a bit, but dont go over 2350, and adjust it when the oil is warm. If the relief valve seems like its "kicking out" you may have a weak one that doenst hold, if while your checking pressure with the guage, the pressure goes very low and you hear a pop sound, probably the relief is popped open and is dumping oil back to sump. HTH |
Posted By: MACK
Date Posted: 10 Feb 2011 at 10:02pm
| Put bigger cylinders on loader. MACK |