Komatsu A63001, Shop Manual

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FOREWORD STANDARD TIGHTENING TORQUE
WB156-5 00-13
2
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 flats Tightening torque
mm mm N·m lbf ft
02 14 19 24.5 ±4.9 18.1 ±3.6
03 18 24 49 ±19.6 36.1 ±14.4
04 22 27 78.5 ±19.6 57.9 ±14.4
05 24 32 137.3 ±29.4 101.3 ±21.7
06 30 36 176.5 ±29.4 130.2 ±21.7
10 33 41 196.1 ±49 144.6 ±36.1
12 36 46 245.2 ±49 180.9 ±36.1
14 42 55 294.2 ±49 217.0 ±36.1
Thread diameter Width across flats Tightening torque
mm mm N·m lbf ft
10 14 65.7 ±6.8 48.5 ±5.0
12 17 112 ±9.8 82.6 ±7.2
16 22 279 ±29 205.8 ±21.4
Thread diameter Width across flats Tightening torque
mm mm N·m lbf ft
14 19 24.5 ±4.9 18.0 ±3.6
18 24 49 ±19.6 36.1 ±14.5
22 27 78.5 ±19.6 57.9 ±14.5
24 32 137.3 ±29.4 101.3 ±21.7
30 36 176.5 ±29.4 130.2 ±21.7
33 41 196.1 ±49 144.6 ±36.1
36 46 245.2 ±49 180.9 ±36.1
42 55 294.2 ±49 217.0 ±36.1