GENERAL / Tightening O-ring Seal Joint O-ring (6) seats against the end surface of adapter (7) to seal pressure oil. IMPORTANT: 1. Be sure to replace O-ring (6) with a new one when reconnecting. 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 leak- age. 3. Take care not to damage O-ring groove (8) or sealing surface (10). Damage to O-ring (6) will cause oil leakage. 4. If union nut (9) is loose and oil is leaking, do not re-tighten union nut (9).
Replace O-ring (6) with a new one and check that O-ring (6) is correctly seated in place, tighten union nut (9). 7 6 9 Joint Body M104-07-033 Wrench Size mm Wrench Size mm Tightening Torque 8 1 Union Nut Joint Body N m (kgf m, lbf ft) 19 17 29.5 (3.0, 21.5) 22 19 69 (7.0, 51) 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) 46 41 205 (21.0,151) W1-2-7