Hitachi ZW 370-6 Operator's Manual page 349

Metal Face Seal Fittings
Fittings are used on smaller hoses and consist of a metal
flare and a metal flare seat.
1. Inspect flare (10) and flare seat (9). They must be free of
dirt or obvious defects.
2. Tighten fitting (7) by hand.
3. Tighten fitting (7) or nut (8) to the torque values shown.
Do not allow hose (5) to twist when tightening fittings.
MAINTENANCE
7-55
7 9 8 10 5
M202-07-051