As long as your manual list "hydraulic fluid/oil" you should be fine. ISO 32 weight is more common than a ISO 46 viscosity hydraulic oil. A ISO 46 is equivelant to a SAE 15 weight oil and a ISO 32 is equivelant to a SAE 10 weight oil. The "AW" stands for anti-wear and is refering to the additive package in the oil
If the manual states you need a UTF (universal tractor fluid), power transmission fluid then DO NOT USE a hydraulic oil. These type fluids have a different additive package.
Basically if the oil you are replacing is used for only the hydraulic system then it's probably a hydraulic oil. If it is a common sump system that uses the fluid to lubricate the trans, rear end, wet clutch and wet brake systems then you need a UTF or power trans type fluid.
You can use UTF as hydraulic oil, you can not use hydraulic oil as a UTF oil.