JD2210 high hydraulic pressure! should I worry?

[KML]

For grins I decided to check the hydraulic pressure on my new to me JD2210 and was supprised to consistently get 2400 psi compared to the manuals 1987psi. I used a 4k psi gage mounted to a quick coupler and connected it to the SCV after I disconnected one of the loader lines. The pressure was the same at idle and full throttle.

I think that the factory listed pressure is set that low to reduce the lifting capacity of the loader as it's also used on larger tractors.

I did buy the tractor used (130Hrs in 4 yrs) but doubt that the previous owner shimed the relief valve as it still had the factory fill (red) fluid in the transaxle. I would think someone too lazy to change the fluid is unlikely to be taking apart valves.

Should I just be happy with the extra lift it gives me or do you think it might damage something? I think most hyd pumps should have no problem with this pressure but don't have a lot of experience with hydraulics and would hate to break this as it has no warranty!

Thanks for any replies.

 

[ultrarunner]

Good question... I did exactly the same thing Sunday and found the max pressure on my BX23 just a hair under 1900# instead of the 1849# high end of the spec.

Yours is more that 20% over...

 

[kennyd]

I'd bet that someone turn it up...they are often set low from the factory-not high. My 4110 has a 2450psi rating, are you sure about the 1987 #?

 

[KML]

"are you sure about the 1987 #?"


Kennyd,

Here is what I'm going by.


210 Loader Specifications on 2210 Tractor1

Dimensions are in compliance with ASAE standard S301.3.
1(Specifications and design subject to change without notice.)

-------------------------------------------------------------------------
Tractor Model 2210 4WD
Front Tires 18 x 8.50-14
Rear Tires 26 x 12.00-12
Wheelbase (I) 1450 mm (57 in.)
Material Bucket
Width 1250 mm (49.2 in.)
Length 618 mm (24.3 in.)
Mass 70 kg (154 lb)
Hydraulic System
Rated Flow 20.8 L/Min (5.5 gal/min)
Maximum Pressure 13,700 kPa (137 bar) (1987 psi)
Cycle Times (in seconds)
Loader Raising Time 3.8 s
Loader Lowering Time 2.0 s
Bucket Dumping Time 2.4 s
Bucket Rollback Time 3.4 s
Maximum Lift Height
To Pivot Pin (A) 1740 mm (68.5 in.)
Clearance
Bucket Level (B) 1582 mm (62 in.)
Bucket Dumped (C) 1280 mm (50 in.)
Overall Length (I+F) 2725 mm (107.2 in.)
Digging Depth (H) 200 mm (7.9 in.)
Reach
At Max Lift Height (D) 615 mm (24.2 in.)
Bucket on Ground (F) 1275 mm (50.2 in.)
Angles
Max Dump (E) 47.2ｰ
Max Dump at Ground 124ｰ
Max Rollback (G) 26.5ｰ
Rollback at Full Height (SAE) 98.2ｰ
Overall Height
In Carry Position (J) 1105 mm (43.5 in.)
Lift Capacity
To Max Height at Pivot Point (U) 282 kg (622 lb)
To Max Height (V) 198 kg (437 lb)
To 1.5 m (59 in.) at Pivot Point (W) 327 kg (721 lb)
To 1.5 m (59 in.) (X) 236 kg (520 lb)
With Forklift to Max Height (U) 234 kg (516 lb)
Breakout Force
At Pivot Point (Y) 7017 N (1577 lb force)
500 mm (19.7 in.) Forward of Pivot Point (Z) 4768 N (1072 lb force)
Bucket Rollback Force
At Max Height (VV) 5750 N (1293 lb force)
At 1.5 m (59 in.) Lift Height (XX) 6621 N (1488 lb force)
At Ground Level Line (ZZ) 7343 N (1650 lb force)

Specs are from here: http://manuals.deere.com/omview/OMW49370_19/?tM=FR


The 1987 is listed as "maximum" and I'm more than just a little over that.. I'm very happy with the way the loader is performing but am starting to wonder if I'm in danger of hurting something...

 

[kennyd]

I would play it safe and adjust it down to 2100 or 2200...

 

[crashz]

With the releif pressure set that high, it is no longer the weak link in the hydraulic system. More expensive parts are at risk like the pump, valves and even the structure of the machine. Say your overall lifting ability has increased by 20% (not really since leverage and losses aren't considered), the chassis of the tractor was not designed for sustained over loading. It may last for a while, but something is going to break.

I know of a fellow who has a Kubota with an oversized light materials bucket that he uses for digging and hauling soil. The loader is able to lift the load (I think he turned up the relief pressure on his pump) and used the tractor like that for years. One day he lifted a bucket full of gravel (no ballast either) and the left front hub and wheel snapped clean off.

If I were you, I'd turn it down a bit. At least to 2100 psi. You'll feel the difference in performance, but its better than feeling it in your wallet later on.