Komatsu A40034, Shop Manual

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FOREWORD STANDARD TIGHTENING TORQUE
00-14 WB140PS-2N WB150PS-2N
12
TIGHTENING TORQUE OF HOSE NUTS
00
Use these torques for hose nuts.
TIGHTENING TORQUE OF SPLIT FLANGE BOLTS
00
Use these torques for split flange bolts.
TIGHTENING TORQUE FOR FLARED NUTS
00
Use these torques for flared part of nut.
Nominal No.
Thread diameter Width across flat Tightening torque
mm mm Nm lbf ft
02 14 19 19.6 - 29.4 14.5 - 21.7
03 18 24 29.4 - 68.6 21.7 - 50.6
04 22 27 58.9 - 98.1 44.4 - 72.4
05 24 32 107.9 - 166.7 79.6 - 123.0
06 30 36 147.1 - 205.9 108.5 - 151.9
10 33 41 147.1 - 245.1 108.5 - 180.8
12 36 46 196.2 - 294.2 144.7 - 217.0
14 42 55 245.2 - 343.2 180.9 - 253.1
Thread diameter Width across flat Tightening torque
mm mm Nm kgm
10 14 59 - 74 43.51 - 54.57
12 17 98 - 123 72.28 - 90.72
16 22 235 - 285 173.32 - 210.20
Thread diameter Width across flat Tightening torque
mm mm Nm lbf ft
14 19
24.5 ± 4.9 18.0 ± 3.6
18 24
49 ± 19.6 36.1 ± 14.4
22 27
78.5 ± 19.6 57.8 ± 14.4
24 32
137.3 ± 29.4 101.2 ± 21.6
30 36
176.5 ± 29.4 130.1 ± 21.6
33 41
196.1 ± 49 144.6 ± 36.1
36 46
245.2 ± 49 180.8 ± 36.1
42 55
294.2 ± 49 216.9 ± 36.1