Engine oil No. 46 how does this relates to the engine oil type xxWxx?
No. Servo system 68 is hydraulic oil and servo way 68 is lubricant
The numbers 68 and 46 in hydraulic oils indicate viscosity at 40°C. A 68-grade oil is thicker than a 46-grade oil, affecting flow and performance. Choosing the right viscosity is essential for system efficiency.
Basically, the only difference between HD-46 and HD-68 hydraulic oils is the weight of the product. HD-46 is a 15 weight oil, but HD-68 is a 20 weight oil.
ANS is 6 to 7
You should consult with a tractor manufacturing company. Or high-pressure hydraulic oil to use.
ISO Grade 68 flashpoint is 430 degrees F
servo system 68
68 hydraulic oil
No, use exactly what is recommended by the manufacture.
All the necessary parts manuals, diagrams, and operator manual etc are on the jacobsen website in pdf format. Very helpful and a wealth of information. I have a 445G and went with ISO 68 hydraulic oil. Its listed as an approved alternate oil, along with Sunoco EP special 20w20 and Mobil Delvac 20w20. I purposely chose the ISO 68 because its universal and should be easy to find. Most hydraulic hose shops would be your best bet. I tried small engine places, lawn mower shops, etc (except Jacobsen wasn't a local dealer) and they ended up all having their own proprietary hydraulic oils .... so no good there. Find ISO 68! Its a 20weight hydraulic oil and is what the service manual called for in the 445G. Hope that helps.
68 weight is the most common