jcb 540-170 Service Manual page 41

'Torque Stop' Hose System
`Torque Stop' Hoses 3-B screwed into adaptors 3-A seal
onto an 'O' ring 3-C which is compressed into a 45° seat
machined in the face of the adaptor port. To prevent the 'O'
ring being damages as a result of over tightening, 'Torque
BSP Hose Size
1-4-9
Fig 3.
Table 12. BSP `Torque Stop' Hose - Torque Settings
Hexagon (A/F)
in. mm
1/8 14.0
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
1 1/2 55.0
9803/3750-05 (1-05-00)
Section 1-4 - General Information
Stop' Hoses have an additional shoulder 3-D, which acts
as a physical stop.
Note: Minimum dimension 3-E fixed by shoulder 3-D.
Nm kgf m lbf ft
14.0 1.4 10.0
27.0 2.7 20.0
40.0 4.1 30.0
55.0 5.6 40.0
65.0 6.6 48.0
95.0 9.7 70.0
120.0 12.2 89.0
189.0 19.3 140.0
244.0 24.9 180.0
Torque Settings
Hydraulic Connections
1-4-9