Hitachi ZW140-6 Operator's Manual page 315

Metal Face Seal Fittings
Fittings are used on smaller hoses and consist of metal flare
(9) and metal flare seat (10).
1. Tighten fitting (7) by hand.
2. Tighten fitting (7) or nut (8) to the torque values shown.
Do not allow hose (5) to twist when tightening fittings.
Tightening torque:
Tighten fittings to the torque values shown below.
Width across flats
(mm)
Tightening N·m
torque: (lbf·ft) (18)
MAINTENANCE
17 19 22 27
25 30 40 80
(22) (30) (59)
7
36
180
(133)
7-63
9 8 10 5
M202-07-051