© May 2023 24 GTZZ14EJ&16EJ Maintenance Manual
TECHNICAL CHARACTERISTICS
Table 3-27 Hydraulic Fitting Torque-British Standard Pipe (BSP)(Continued)
Thread size
Installed to aluminum Installed to steel
ED, O-ring + Circlip ED, O-ring + Circlip O-ring
G3/4A 120±8Nm (89±6ft-lb) 185±12Nm (136±9ft-lb)
-
G1A 180±10Nm (133±7ft-lb) 320±20Nm (236±15ft-lb)
-
G1-1/4A 240±15Nm (177±11ft-lb) 450±25Nm (332±18ft-lb)
-
G1-1/2A 280±20Nm (207±15ft-lb) 540±30Nm (398±22ft-lb)
-
The hydraulic fitting with Unified Thread Standard (UNC/UNF) thread must be removed or installed as per the follow-
ing torque.
Table 3-28 Hydraulic Fitting Torque-Unified Thread Standard (UNC/UNF)
Thread size
Installed to aluminum Installed to steel
O-ring O-ring
L (light-duty)
7/16-20 21±2Nm (15±2ft-lb) 21±2Nm (15±2ft-lb)
9/16-18 34±2Nm (25±2ft-lb) 35±2Nm (26±2ft-lb)
11/16-12 40±3Nm (30±2ft-lb) 50±4Nm (37±3ft-lb)
3/4-16 50±3Nm (37±2ft-lb) 65±4Nm (48±3ft-lb)
7/8-14 75±5Nm (55±4ft-lb) 110±8Nm (81±6ft-lb)
1-1/16-12 110±8Nm (81±6ft-lb) 140±10Nm (103±7ft-lb)
1-5/16-12 160±10Nm (118±7ft-lb) 210±15Nm (155±11ft-lb)
S (heavy-duty)
7/16-20 21±2Nm (15±2ft-lb) 23±2Nm (17±2ft-lb)
9/16-18 34±2Nm (25±2ft-lb) 40±3Nm (30±2ft-lb)
11/16-12 40±3Nm (30±2ft-lb) 65±4Nm (48±3ft-lb)
3/4-16 50±3Nm (37±2ft-lb) 80±6Nm (59±4ft-lb)
7/8-14 75±5Nm (55±4ft-lb) 125±10Nm (92±7ft-lb)
1-1/16-12 110±8Nm (81±6ft-lb) 185±15Nm (136±11ft-lb)
1-5/16-12 160±10Nm (118±7ft-lb) 280±20Nm (207±15ft-lb)
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