Sinoboom TB20J Plus - Hydraulic Hose Torque; Hydraulic Fitting Torque

© Feb. 2023 22 TB20J Plus Maintenance Manual
TECHNICAL CHARACTERISTICS
Table 3-24 Fastener torque specification-Unified Thread Standard bolts (UNF) (Continued)
NNoommiinnaall
ddiiaammeetteerr ((iinn))
OOppppoossiittee nnuutt ssiizzee ((ss))
CCllaassss 55 CCllaassss 88
3/4-16 1-1/8"
350Nm (258ft-lb) 495Nm (365ft-lb)
7/8-14
- 560Nm (413ft-lb) 780Nm (575ft-lb)
Hydraulic Hose Torque
The hydraulic hose must be removed or installed as per the following torque.
Table 3-25 Hydraulic Hose Torque
Metric thread
L (light-duty) S (heavy-duty)
M12×1.5
19±1Nm (14±1ft-lb)
M14×1.5
26±2Nm (19±2ft-lb)
M16×1.5
40±3Nm (30±2ft-lb)
M18×1.5
50±4Nm (37±3ft-lb)
M20×1.5
- 60±4Nm (44±3ft-lb)
M22×1.5
70±5Nm (52±4ft-lb) -
M24×1.5
- 85±6Nm (63±4ft-lb)
M26×1.5
90±6Nm (66±4ft-lb) -
M30×2
120±8Nm (89±6ft-lb) 140±10Nm (103±7ft-lb)
M36×2
150±12Nm (111±9ft-lb) 180±12Nm (133±9ft-lb)
M42×2
- 260±16Nm (192±12ft-lb)
M45×2
240±15Nm (177±11ft-lb) -
M52×2
250±16Nm (184±12ft-lb) 280±18Nm (207±13ft-lb)
Hydraulic Fitting Torque
The hydraulic fitting with metric thread must be removed or installed as per the following torque.
Table 3-26 Hydraulic Fitting Torque-Metric
Thread size
Installed to aluminum Installed to steel
ED, O-ring + Circlip ED, O-ring + Circlip O-ring
L (light-duty)
M10×1
18±1Nm (13±1ft-lb) 20±2Nm (15±2ft-lb) 18±1Nm (13±1ft-lb)
M12×1.5
30±2Nm (22±2ft-lb) 35±2Nm (26±2ft-lb) 30±2Nm (22±2ft-lb)
M14×1.5
42±3Nm (31±2ft-lb) 48±4Nm (35±3ft-lb) 35±2Nm (26±2ft-lb)
M16×1.5
55±4Nm (41±3ft-lb) 60±4Nm (44±3ft-lb) 40±3Nm (30±3ft-lb)
M18×1.5
75±5Nm (55±4ft-lb) 75±5Nm (55±4ft-lb) 45±3Nm (33±4ft-lb)
M22×1.5
90±6Nm (66±4ft-lb) 130±8Nm (96±6ft-lb) 60±4Nm (44±3ft-lb)