Quick answer:
The John Deere 3640 tractor hydraulic pump flow is 12.4 GPM, and hydraulic system pressure is 2,466 psi.
Hydraulic pump flow12.4 GPM
Implement flow11.9 GPM
Total hydraulic flow12.4 GPM
Hydraulic pressure2,466 psi
Hydraulic system typeclosed-center
Hydraulic fluid capacity11.1 gal
John Deere 3640 Hydraulic Flow Details
| Hydraulic pump flow | 12.4 GPM |
|---|---|
| Implement hydraulic flow | 11.9 GPM |
| Total hydraulic flow | 12.4 GPM |
| Hydraulic system pressure | 2,466 psi |
| Hydraulic system type | closed-center |
| Hydraulic fluid capacity | 11.1 gal |
Hydraulic Flow Comparison Chart
Hydraulic pump flow comparison
Implement hydraulic flow comparison
Total hydraulic flow comparison
Hydraulic pressure comparison
Hydraulic fluid capacity comparison
John Deere 3640 Extra Hydraulic Notes
| Hydraulic flow note | The John Deere 3640’s total flow is higher than implement flow, so use the implement-flow number when matching hydraulic tools and SCV-driven equipment. |
|---|---|
| Hydraulic pressure note | Hydraulic pressure on the John Deere 3640 is 2,466 psi, but hydraulic performance depends on pressure and flow together. |
| Rear remotes / SCV note |
|
| Hydraulic system type note | System type matters on the John Deere 3640: closed-center affects how hydraulic flow and pressure are delivered to valves and implements. |
| Hydraulic fluid capacity note | Hydraulic fluid capacity on the John Deere 3640 is 11.1 gal, but the correct oil type and fill/check procedure should still come from the official manual. |
Official information note
Mistakes do happen. Hydraulic flow, pump flow, implement flow, pressure, rear remote / SCV setup and fluid capacity can change by year, market, transmission, pump option, loader package and hydraulic package. Please check the operator manual and official deere.com website for official information.







