ANS is 6 to 7
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
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.
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.
68 weight is the most common
Union 76 Unax AW-WR ISO-68 or Union 76 Firebird Tractor Hydraulic Luid (Re-Refined) Union 76 Unax AW-WR ISO-68 or Union 76 Firebird Tractor Hydraulic Luid (Re-Refined)
It uses a multi viscosity non detergent hydraulic oil. It is ISO 68 lubricant. I would use nothing but Cat oil which you can easily buy.
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.