Komatsu D61EX-24 Operation & Maintenance Manual page 325

STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS
Tighten the hoses to the torque shown in the table.
Width
acros
Nominal - No. of
s flats
threads "a"
"b"
(mm)
9/16-18UNF
11/16-16UN
13/16-16UN
1-14UNS
1 3/16-12UN
4-12
Target value
Nm kgm
19 44 4.5
22 74 7.5
27 103 10.5
32 157 16.0
36 216 22.0
Tightening torque
lbft Nm
32.5 35 to 54
54.2 54 to 93
75.9 84 to 132
115.7 128 to 186
159.1 177 to 245
MAINTENANCE
Allowable range
kgm
3.5 to 5.5 25.3 to 39.8
5.5 to 9.5 39.8 to 68.7
8.5 to 13.5 61.5 to 97.6
13.0 to 19.0 94.0 to 137.4
18.0 to 25.0 130.2 to 180.8
lbft