Komatsu 930E-4SE, Operation & Maintenance Manual

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STANDARD CHARTS AND TABLES
STANDARD TIGHTENING TORQUES
O-Ring Boss Fittings
Table 2-9
Torque Chart For O-ring Boss Fittings
Size Code
Tube Size
(OD)
Threads
UNF-2B
Newton
meters
(N
·
m)
Foot
Pounds
(ft
·
lb)
– 2 0.125 0.312 – 24 4 ± 3 4 ± 2
– 3 0.188 0.375 – 24 7 ± 3 5 ± 2
– 4 0.250 0.438 – 20 11 ± 4 8 ± 3
– 5 0.312 0.500 – 20 14 ± 4 10 ± 3
– 6 0.375 0.562 – 18 18 ± 4 13 ± 3
– 8 0.500 0.750 – 16 33 ± 7 24 ± 5
– 10 0.625 0.875 – 14 43 ± 7 32 ± 5
– 12 0.750 1.062 – 12 65 ± 7 48 ± 5
– 14 0.875 1.188 – 12 73 ± 7 54 ± 5
– 16 1.000 1.312 – 12 98 ± 7 72 ± 5
– 20 1.250 1.625 – 12 109 ± 7 80 ± 5
– 24 1.500 1.875 – 12 109 ± 7 80 ± 5
– 32 2.000 2.500 – 12 130 ± 14 96 ± 10
930E-4SE 2-9