ZL 20 Loader relief pressure

/ ZL 20 Loader relief pressure #1  

Amez

Bronze Member
Joined
Oct 25, 2005
Messages
50
Location
BC,Canada
Tractor
Jinma 284
Does anyone know what the relief pressure should be for a Jinma 284 loader ? Mine is around 2000-2500 psi with the replacement loader valve from Ranch Hand Supply. (That was not with the hydraulic oil fully at operating temperature.)
 
/ ZL 20 Loader relief pressure #2  
For the ones that have been brought here for service .......... I have seen the factory ZL20 & ZL30 loader valves relieving anywhere from 800 - 2600 lb. Nothing consentant.

Your window of 2000 - 2500 seems a little wide to me ?

I like to see 2200 - 2400 .... not over 2500.



Ronald
Ranch Hand Supply
 
/ ZL 20 Loader relief pressure #3  
Does anyone know what the relief pressure should be for a Jinma 284 loader ? Mine is around 2000-2500 psi with the replacement loader valve from Ranch Hand Supply. (That was not with the hydraulic oil fully at operating temperature.)

I googled around and found this -

JINMA OEM FRONT END LOADER ZL-20
FOR 20-28HP TRACTORS

Attachment Model : Jinma Front End Loader - 20
Model # : ZL-20
Tractor Sizes : 20 - 28HP
Bucket Size : 50" (inches)
Bucket Capacity : 7.1 feet cubed
Hydraulic Cylinders : Double Acting
Hydraulic Pressure : 2400 psi.
Control Valve : 2 Spool Valve
Bucket Cylinder : 2" x 23" (inches)
Lift Cylinder : 2" x 23" (inches)
Lift Capacity At Full Height : 1500 lbs
Breakout Force : 1835 lbs
Dimensions : 89" x 43" x 32" (inches)
Structure Weight : 600 lbs
 
/ ZL 20 Loader relief pressure #4  
I'm not sure where that data came from but it's incorrect,the lift capacity on the ZL-20 is around 800lbs, I have the specs at the shop from the ZL-20 manual and will get them,My Ansung Korean loaders have a lift capacity of 1550 lbs and the cylinders and steel are twice the size of the ZL-20

Tommy
Affordable Tractor Sales
 
/ ZL 20 Loader relief pressure #5  
I wouldn't argue with Tommy.

Dang internet, I just googled and found it at a site, did a cut and paste.
 

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