Hitachi ZX350H-3 Bucket Cylinder

Hi All, I am currently doing a re-seal of our bucket cylinder off our Hitachi ZX350H-3 excavator. I am at the point now of re-assembly but am unaware of the torque value for tightening the piston. Unfortunately I am unable to find our ZAXIS Service Manual, only the parts manual & operators manual. :beatsme If someone could help me out by scanning the page in their manual showing the bucket cylinder & assembly details, showing the torque values for piston, grub screw & gland bolts. Details of machine: Hitachi ZX350H-3 Excavator (330-3 class) Bucket Cylinder 4643260 Thanks in advance! -Geoff