Hitachi EX 3600-6 Operator's Manual page 212

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.
IMPORTANT: Defects in the tube flare cannot be re-
paired. Overtightening a defective flare
fitting will not stop a leak.
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.
Width across flats (mm)
Fastening torque
19 22
N m 29.5 39
(kgf m) (3) (4)
(lbf ft) (21.5) (29)
MAINTENANCE
27
93
(9.5)
(69)
7-73
7 9 8 10 5
M202-07-051