What can you substitute hydraulic fluid with?
Machine oil or lightweight motor oil of 10/20W can be substituted for hydraulic fluid. Automatic transmission fluid can function as hydraulic fluid. Use it if you are stuck and do not have the oil recommended by the manufacturer. There are a few vegetable seed oils that can be commercially used as hydraulic fluids.
What makes a good hydraulic fluid?
The principal requirements of a premium hydraulic fluid are proper viscosity, high viscosity index, anti-wear protection (if needed), good oxidation stability, adequate pour point, good demulsibility, rust inhibition, resistance to foaming, and compatibility with seal materials.
How to choose the right hydraulic fluid or hydraulic oil?
Table 1. Typical Minimum Viscosity Values for Hydraulic Components Component Type Minimum Permissible Viscosity (cSt) Minimum Optimum Viscosity (cSt) Vane 25 25 External Gear 10 25 Internal Gear 20 25 Radial Piston 18 30
How does water affect the quality of hydraulic oil?
The main concern with these fluids is that they have excellent water emulsifying ability, which means that if present, water is not separated out of the fluid. Water accelerates the aging of the oil, reduces lubricity and filterability, reduces seal life and leads to corrosion and cavitation.
Which is a hygroscopic type of hydraulic fluid?
Mineral oil and silicone based fluids are not hygroscopic. Power steering fluid is a sub type of hydraulic fluid. Most are mineral oil or silicone based fluids, while some use automatic transmission fluid, made from synthetic base oil.
What are the base stocks of hydraulic fluid?
Today most hydraulic fluids are based on mineral oil base stocks. Natural oils such as rapeseed (also called canola oil) are used as base stocks for fluids where biodegradability and renewable sources are considered important. Other base stocks are used for specialty applications, such as for fire resistance and extreme temperature applications.
The main concern with these fluids is that they have excellent water emulsifying ability, which means that if present, water is not separated out of the fluid. Water accelerates the aging of the oil, reduces lubricity and filterability, reduces seal life and leads to corrosion and cavitation.
What kind of hydraulic fluid do I need for my WK XK?
Yes, Chrysler recommends the MS-10838 PS Fluid for all WK/XK’s, even though only the HEMI versions have a hydraulically driven fan, the rest have electric/engine driven fans. So I could be wrong on the reason why this special hybrid PS/hydraulic fluid is recommended for the WK/XK PS systems.
What kind of hydraulic fluid is approved by Din?
DIN 51524; HLP-D fluids are a class of antiwear hydraulic fluids that contain detergents and dispersants. The use of these fluids is approved by most major hydraulic component manufacturers.