Hitachi ZW 310-6 Operator's Manual page 380

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.
MAINTENANCE
7-66
7 9 8
10
5
M202-07-051