FOREWORD STANDARD TIGHTENING TORQUE TIGHTENING TORQUE FOR 102 ENGINE SERIES 1) BOLT AND NUTS Use these torques for bolts and nuts (unit: mm) of Cummins Engine. 2) EYE JOINTS Use these torques for eye joints (unit: mm) of Cummins Engine. 3) TAPERED SCREWS Use these torques for tapered screws (unit: inch) of Cummins Engine. TIGHTENING TORQUE TABLE FOR HOSES (TAPER SEAL TYPE AND FACE SEAL TYPE) # Tighten the hoses (taper seal type and face seal type) to the following torque, unless otherwise specified. # Apply the following torque when the threads are coated (wet) with engine oil.
00-14 Thread diameter Tightening torque mm Nm kgm 6 8 10 12 10 0 2 24 0 4 43 0 6 77 0 12 1.02 0 0.20 2.45 0 0.41 4.38 0 0.61 7.85 0 1.22 Thread diameter Tightening torque mm Nm kgm 6 8 10 12 14 8 0 2 10 0 2 12 0 2 24 0 4 36 0 5 0.81 0 0.20 1.02 0 0.20 1.22 0 0.20 2.45 0 0.41 3.67 0 0.51 Thread diameter Tightening torque inch Nm kgm 1 / 16 1 / 8 1 / 4 3 / 8 1 / 2 3 / 4 1 3 0 1 8 0 2 12 0 2 15 0 2 24 0 4 36 0 5 60 0 9 0.31 0 0.10 0.81 0 0.20 1.22 0 0.20 1.53 0 0.41 2.45 0 0.41 3.67 0 0.51 6.12 0 0.92 Nominal size of hose Width across flats Tightening torque (Nm {kgm}) Taper seal type Face seal type Range Target Thread size (mm) Nominal thread size - Threads per inch, Thread series Root diameter (mm) (Reference) 02 19 35 - 63 {3.5 - 6.5} 44 {4.5} 14 9 – - 18UNF 16 14.3 03 22 54 - 93 {5.5 - 9.5} 74 {4.5} – 11 – - 16UN 16 17.5 24 59 - 98 {6.0 - 10.0} 78 {8.0} 18 – – 04 27 84 - 132 {8.5 - 13.5} 103 {10.5} 22 13 – - 16UN 16 20.7 05 32 128 - 186 {13.0 - 19.0} 157 {16.0} 24 1 - 14UNS 25.4 06 36 177 - 245 {18.0 - 25.0} 216 {22.0} 30 3 1 – - 12UNF 16 30.3 (10) 41 177 - 245 {18.0 - 25.0} 216 {22.0} 33 – – (12) 46 197 - 294 {20.0 - 30.0} 245 {25.0} 36 – – (14) 55 246 - 343 {25.0 - 35.0} 294 {30.0} 42 – –