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Hydraulic Fittings
Metal Face Seal Fittings
(Union nut (2): Wrench size 17, 19, 22, 27, 36, 41)
Metal face seal fitting is used on smaller diameter joint,
which seals pressure oil by metal flare (4) and metal flare
seat (3).
1. Inspect flare (4) and flare seat (3). They must be free of
dirt or obvious defects.
2. Tighten fitting (1) by hand.
3. Tighten fitting (1) or nut (2) to the torque values shown.
Do not allow a hose to twist when tightening fittings.
Wrench size (mm)
N·m
Tightening
(kgf·m) (2.5) (3)
Torque
(lbf·ft) (18) (22) (29.5) (47)
MAINTENANCE
±10 %
17
19
22
27
25
30
40
65
(4)
(6.5)
1
7-50
3
2
4
Metal Body
M202-07-051
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