Komatsu PC200 -8 Shop Manual page 48

SEN00094-05
5. Table of tightening torques for hoses (taper seal type and face seal type)
a Unless there are special instructions, tighten the hoses (taper seal type and face seal type) to the
torque below.
a Apply the following torque when the threads are coated (wet) with engine oil.
Nominal Width
No. of across
hose flats
02 19
22
03
24
04 27
05 32 128 – 186 {13.0 – 19.0}
06 36 177 – 245 {18.0 – 25.0}
(10) 41 177 – 245 {18.0 – 25.0}
(12) 46 197 – 294 {20.0 – 30.0}
(14) 55 246 – 343 {25.0 – 35.0}
6. Table of tightening torques for face seal joints
a Tighten the face seal joints (sleeve nut type) made of plated steel pipes for low pressure service to
be used for engines etc. to the torque shown in the following table.
a Apply the following torque to the face seal joint while their threaded parts are coated with engine oil
(wetted).
Width
Outer
diameter across
of pipe flats
(mm) (mm)
8 19
10 22
12 24 (27)
15 (16) 30 (32)
22 (20) 36
Reference: The face seal joints of the dimensions in ( ) are also used, depending on the specification.
7. Table of tightening torques for 102, 107 and 114 engine series (Bolts and nuts)
a Unless there are special instructions, tighten the metric bolts and nuts of the 102, 107 and 114
engine series to the torque below.
Thread size
mm
6
8
10
12
14
34
Tightening torque Nm {kgm}
Range
34 – 54 { 3.5 – 5.5}
34 – 63 { 3.5 – 6.5}
54 – 93 { 5.5 – 9.5}
59 – 98 { 6.0 – 10.0}
84 – 132 { 8.5 – 13.5}
Tightening torque Nm {kgm}
Range
14 – 16 {1.4 – 1.6}
24 – 27 {2.4 – 2.7}
43 – 47 {4.4 – 4.8}
60 – 68 {6.1 – 6.8}
90 – 95 {9.2 – 9.7}
Taper seal
Thread size
Target
(mm)
–
44 { 4.5}
14
74 { 7.5} –
78 { 8.0} 18
103 {10.5} 22
157 {16.0} 24
216 {22.0} 30
216 {22.0} 33
245 {25.0} 36
294 {30.0} 42
Nominal No. –
Target Number of threads,
type of thread
15 {1.5} 9/16-18UN
25.5 {2.6} 11/16-16UN
45 {4.6} 13/16-16UN
64 {6.5} 1-14UN
92.5 {9.4} 1-3/16-12UN
Tightening torque
Bolts and nuts
Nm
10 ± 2
24 ± 4
43 ± 6
77 ± 12
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00 Index and foreword
Face seal
Nominal No. –
Thread
Number of
diameter (mm)
threads, type of
(Reference)
thread
9/16-18UN 14.3
–
11/16-16UN 17.5
–
13/16-16UN 20.6
1-14UNS 25.4
1-3/16-12UN 30.2
–
–
–
Face seal
Thread diameter
(mm)
(Reference)
14.3
17.5
20.6
25.4
30.2
kgm
1.02 ± 0.20
2.45 ± 0.41
4.38 ± 0.61
7.85 ± 1.22
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PC200, 220-8
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