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 34 - 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 – –