What replaced 303 hydraulic fluid?
What replaced 303 hydraulic fluid?
JDM-J20C
The THF 303 specification was discontinued in the 1970s and was subsequently replaced with the current JDM-J20C or D specifications.
What is Hy-Gard J20C?
An exclusive formulation, specifically designed to protect John Deere transmissions, final drives and hydraulic systems. Hy-Gard oil can be used in most transmission and hydraulic applications calling for 10W-30 or 5W-30 engine oil. Exceeds the minimum requirements of the JDM J20C specifications.
What weight is hydraulic 134 oil?
MultiGrade 134™ Hydraulic Transmission Oil – SAE 10W-30 – 5 Gal./18.92 L #73344281.
What weight is Ford 134 oil?
Viscosity. The viscosity of 134 hydraulic fluid at 40 degrees Celsius is 65.76, and at 100 degrees Celsius, it is 9.5. The viscosity at 100 degrees Fahrenheit is 305, while at 210 degrees Fahrenheit, it is 57.6.
What was wrong with 303 hydraulic oil?
It was made obsolete in 1974 when the use of whale oil, of which the specification was loosely based, was outlawed by the Endangered Species Act. Fast forward to today and the ‘yellow bucket’ as it is often referred to is still out there touting the old 303 spec and cost savings.
What was the problem with 303 hydraulic oil?
The inferior performance that 303 fluids have exhibited during testing is an indicator of reduced pump output and, ultimately, hydraulic system failure. The use of 303 fluids can also result in severe wear and ridging of gear parts.
Can I mix J20C and j20d?
Considerations. John Deere machine owners should not mix transmission oil types to create an all-season lubrication. Mixing the oils may result in costly damage to the transmission in extreme hot or cold weather.
What viscosity is J20C hydraulic fluid?
J20C Hydraulic Fluids Premium Universal Tractor | Ultra1Plus
| Typical Properties | |
|---|---|
| Appearance | Amber Liquid |
| Viscosity @ 40°C, cSt, ASTM D445 | 55.0 |
| Viscosity @ 100°C, cSt, ASTM D445 | 9.50 |
| Viscosity Index, ASTM D2270 | 147 |
What is the difference between Hy-Gard and low viscosity HY-Gard?
Both Hy-Gard fluids are multi-viscosity fluids with high-viscosity index. Low-Viscosity Hy-Gard has an ISO 32 viscosity grade. Hy-Gard viscosity places it between ISO 46 and 68 grades. Hy-Gard may be used in many applications specifying either of these grades.
