Hydraulic Fittings - Kubota M8540 Workshop Manual

M8540, M9540, WSM

[3] HYDRAULIC FITTINGS

Hydraulic Hose Fittings
Hose size
02
03
04
05
06
Hydraulic Pipe Cap Nuts
Pipe size
φ4 × t1.0
φ6 × t1.0
φ8 × t1.0
φ10 × t1.0
φ12 × t1.5
φ15 × t1.6
φ18 × t1.6
Adaptors, Elbows and Nipples
Items
POA-PF
(Nipple with O-ring)
POB-PF
(Elbow with O-ring
and no nut)
Adaptor (NPT)
Thread size
1/8 13.7 to 15.7
1/4 22.6 to 27.5
3/8 45.1 to 53.0
N·m
19.6 to 29.4
24.5 to 34.3
29.4 to 39.2
39.2 to 49.0
49.0 to 68.6
107.9 to 117.7
107.9 to 117.7
Thread size
PF 1/8 44.1 to 53.9
PF 1/4 73.5 to 83.4
PF 3/8 93.2 to 103.0
PF 1/2 112.8 to 122.6
PF 1/8 22.6 to 26.5
PF 1/4 35.3 to 43.1
PF 3/8 53.9 to 63.7
PF 1/2 73.5 to 83.4
PF 1/8 9.8 to 14.7
PF 1/4 29.4 to 34.3
PF 3/8 49.0 to 68.6
PF 1/2 68.6 to 88.3
Tightening torque
N·m kgf·m
1.4 to 1.6
2.3 to 2.8
4.6 to 5.4
Tightening torque
kgf·m
2.0 to 3.0
2.5 to 3.5
3.0 to 4.0
4.0 to 5.0
5.0 to 7.0
11.0 to 12.0
11.0 to 12.0
Tightening torque
N·m kgf·m
4.5 to 5.5
7.5 to 8.5
9.5 to 10.5
11.5 to 12.5
2.3 to 2.7
3.6 to 4.4
5.5 to 6.5
7.5 to 8.5
1.0 to 1.5
3.0 to 3.5
5.0 to 7.0
7.0 to 9.0
G-13
G GENERAL
lbf·ft
10.1 to 11.6
16.6 to 20.3
33.3 to 39.0
W1014711
lbf·ft
14.5 to 21.7
18.1 to 25.3
21.7 to 28.9
28.9 to 36.1
36.1 to 50.6
79.6 to 86.8
79.6 to 86.8
W1014848
lbf·ft
32.5 to 39.8
54.2 to 61.5
68.7 to 75.9
83.2 to 90.4
16.6 to 19.5
26.0 to 31.8
39.8 to 47.0
54.2 to 61.5
7.2 to 10.8
21.7 to 25.3
36.2 to 50.6
50.6 to 65.1
W1015484
KiSC issued 09, 2008 A