jcb JS300 Service Manual page 35

'O' Ring Face Seal System
Adaptors Screwed into Valve Blocks
Adaptor screwed into valve blocks, seal onto an 'O' ring
which is compressed into a 45° seat machined into the
face of the tapped port.
SAE Tube
Size
4
6
8
10
12
16
20
1-30
Hydraulic Connections
Table 8. Torque Settings - BSP Adaptors
BSP Adaptor Hexagon (A/F)
Size
in. mm
1/4 19.0
3/8 22.0
1/2 27.0
5/8 30.0
3/4 32.0
1 38.0
1 1/4 50.0
Table 9. Torque Settings - SAE Connections
Hexagon (A/F)
SAE Port
Thread Size mm
7/16 - 20 15.9
9/16 - 18 19.1
3/4 - 16 22.2
7/8 - 14 27.0
1 1/16 - 12 31.8
1 5/16 - 12 38.1
1 5/8 47.6
Section 1 - General Information
T11-003
Nm kgf m
18.0 1.8
31.0 3.2
49.0 5.0
60.0 6.1
81.0 8.2
129.0 13.1
206.0 21.0
Nm
20.0 - 28.0
46.0 - 54.0
95.0 - 105.0 9.7 - 10.7
130.0 - 140.0 13.2 - 14.3
190.0 - 210.0 19.4 - 21.4
290.0 - 310.0 29.6 - 31.6
280.0 - 380.0 28.5 - 38.7
1-07-00 Issue 01
Torque Settings
Hydraulic Connections
lbf ft
13.0
23.0
36.0
44.0
60.0
95.0
152.0
kgf m lbf ft
2.0 - 2.8 16.5 - 18.5
4.7 - 5.5 34.0 - 40.0
69.0 - 77.0
96.0 - 104.0
141.0 - 155.0
216.0 - 230.0
210.0 - 280.0
1-30