GENERAL / Tightening
W1-2-6
O-ring Seal Joint
O-ring (6) seats against the end face of adapter (7) to
seal pressure oil.
IMPORTANT: 1. Be sue to replace O-ring (6) with
a new one when reconnecting.
2. Before tightening nut (9), confirm
that O-ring (6) is seated correctly
in O-ring groove (e). Tightening
nut (9) with O-ring (6) displaced
will damage O-ring (6), resulting
in oil leakage.
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 nut (9) is loose and oil is leak-
ing, do not re-tighten nut (9). Re-
place O-ring (6) with a new one
and check that O-ring (6) is cor-
rectly seated in place, tighten nut
(9).
M104-07-033
Wrench Size
mm
Wrench Size
mm
Tightening Torque
Union Nut
Hose Fittings
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)
7
6
9
8
1
Hose Fittings
