Komatsu H75051 Operation & Maintenance Manual page 321

MAINTENANCE
Taper seal
Nominal Thread size "a"
No. of hose (mm)
02 14
03 18
04 22
05 24
06 30
10 33
Face seal
Nominal size -
Nominal
thereads per inch
No. of hose
"a"
9
02 / -18UN
16
11
03 / -16UN
16
13
04
/ -16UN
16
05 1 -14UNS
3
06 1 / -12UN
16
STANDARD TIGHTENING TORQUE FOR BOLTS AND NUTS
Width across flats
"b" (mm)
19
22
27
32
36
41
Width across flats
"b" (mm)
19
22
27
32
36
Tightening torque
Target value
Nm kgm
44 4.5
78 8.0
103 10.5
157 16.0
216 22.0
216 22.0
Tightening torque
Target value
Nm kgm
44 4.5
74 7.5
103 10.5
157 16.0
216 22.0
Allowable range
Nm kgm
34 to 63 3.5 to 6.5
59 to 98 6.0 to 10.0
84 to 132 8.5 to 13.5
128 to 186 13.0 to 19.0
177 to 245 18.0 to 25.0
177 to 245 18.0 to 25.0
Allowable range
Nm kgm
34 to 54 3.5 to 5.5
54 to 93 5.5 to 9.5
84 to 132 8.5 to 13.5
128 to 186 13.0 to 19.0
177 to 245 18.0 to 25.0
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