Komatsu 730E - Page 25

OM1200 02/11 Torque Tables And Conversion Charts - Section 12
Page 12-7
TABLE 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
TABLE 10.
Torque Chart For
O-ring Face Seal Fittings
Size
CodeE
Tube Size
(O.D.)
Threads UNF-2B
Newton meters
(N·m)
Foot Pounds
(ft lb)
– 4 0.250 0.438 – 20 15 ± 1 11 ± 1
– 6 0.375 0.562 – 18 24 ± 3 18 ± 2
– 8 0.500 0.750 – 16 48 ± 5 35 ± 4
– 10 0.625 0.875 – 14 69 ± 7 51 ± 5
– 12 0.750 1.062 – 12 96 ± 10 71 ± 7
– 16 1.000 1.312 – 12 133 ± 8 98 ± 6
– 20 1.250 1.625 – 12 179 ± 10 132 ± 7
– 24 1.500 1.875 – 12 224 ± 20 165 ± 15