GENERAL / Tightening O-ring Seal Joint O-ring (6) is installed against the end face of adapter (7) and seals pressure oil. IMPORTANT: 1. Replace O-ring (6) with a new one when reinstalling. 2. Before tightening union nut (9), confirm that O-ring (6) is seated correctly in O-ring groove (8). Tightening union nut (9) with O-ring (6) displaced will damage O-ring (6), resulting in oil leakage. 3. Do not damage O-ring groove (8) or sealing surface (10) in adapter (7). Damage to O-ring (6) may cause oil leakage. 4. If union nut (9) is found to be loose, causing oil leakage, do not tighten it to stop the leak.
Instead, replace O-ring (6) with a new one, then tighten union nut (9) after confirming that O-ring (6) is securely seated in place. 7 6 9 8 10 Joint Body M104-07-033 Wrench Size mm Wrench Size mm Tightening Torque Union Nut Joint Body N m (kgf m, lbf ft) 27 22 93 (9.5, 69) 32 27 137 (14.0, 101) 36 30,32 175 (18.0, 129) 41 36 205 (21.0, 151) 50 46 330 (33.7, 243) W1-2-6