Komatsu PC200LC-8 Shop Manual page 16

FOREWORD
12
Table Of Tightening Torques For O-ring Boss Piping Joints
★ Unless there are special instructions, tighten the O-ring boss piping joints to the torque below.
Norminal No.
02
03, 04
05, 06
10, 12
14
Table Of Tightening Torques For O-ring Boss Plugs
★ Unless there are special instructions, tighten the O-ring boss plugs to the torque below.
Thread diameter
Norminal No.
08
10
12
14
16
18
20
24
30
33
36
42
52
Tightening Torque Table For Hoses (Taper Seal Type And Face Seal Type)
★ Tighten the hoses (taper seal type and face seal type) to the following torque, unless otherwise specified.
★ Apply the following torque when the threads are coated (wet) with engine oil.
Nominal Width
size of hose across flats
02 19
22
03
24
04 27
05 32
06 36
(10) 41
(12) 46
(14) 55
00-16
Thread diameter Width across flat
mm
14
20
Varies depending on
24
type of connector.
33
42
Width across flat
mm
08
10
12
14
16
18
20
24
30
33
36
42
52
Tightening torque N•m {lbf ft}
Range
34 - 54 {25.0 - 39.8}
34 - 63 {25.0 - 46.4}
54 - 93 {39.8 - 68.5}
59 - 98 {43.5 - 72.2}
84 - 132 {61.9 - 97.3}
128 - 186 {94.4 - 137.1} 157 {115.7}
177 - 245 {130.5 - 180.7} 216 {159.3}
177 - 245 {130.5 - 180.7} 216 {159.3}
197 - 294 {145.3 - 216.8} 245 {180.7}
246 - 343 {181.4 - 252.9} 294 {216.8}
STANDARD TIGHTENING TORQUE
mm
35 - 63 {25.81 - 46.46}
84 - 132 {61.95 - 97.35}
128 - 186 {94.40 - 137.18}
363 - 480 {267.73 - 354.02}
746 - 1010 {550.22 - 744.93}
mm
14 5.88 - 8.82 {4.33 - 6.50}
17 9.8 - 12.74 {7.22 - 9.39}
19 14.7 - 19.6 {10.84 - 14.45}
22 19.6 - 24.5 {14.45 - 18.07}
24 24.5 - 34.3 {18.07 - 25.29}
27 34.3 - 44.1 {25.29 - 32.52}
30 44.1 - 53.9 {32.52 - 39.75}
32 58.8 - 78.4 {43.36 - 57.82}
32 93.1 - 122.5 {68.66 - 90.35}
_ 107.8 - 147.0 {79.50 - 108.42}
36 127.4 - 176.4 {93.96 - 130.10}
_ 181.3 - 240.1 {133.72 - 177.08}
_ 274.4 - 367.5 {202.38 - 271.05}
Taper seal
type
Thread size
Target
(mm)
44 {32.4} -
44 {32.4} 14
74 {54.5} -
78 57.5} 18
103 {75.9} 22
24
30
33
36
42
Tightening torque N•m {lbf ft}
Range
Tightening torque N•m {lbf lb}
Range
11.27 {8.31}
17.64 {13.01}
22.54 {16.62}
29.4 {21.68}
39.2 {28.91}
49.0 {36.14}
68.6 {50.59}
107.8 {79.50}
124.4 {91.75}
151.9 {112.03}
210.7 {155.40}
323.4 {238.52}
Face seal type
Nominal thread
Root diameter (mm)
size - Threads per
inch, Thread series
9/16 - 18 UN
-
11/16 -16 UN
-
13/16 - 16 UN
1 - 14 UNS
1 3/16 - 12 UN
-
-
-
00
Target
44 {32.45}
103 {75.96}
157 {115.79}
422 {311.25}
883 {651.26}
00
Target
7.35 {5.42}
00
(Reference)
14.3
-
17.5
-
20.6
25.4
30.2
-
-
-
PC200LC-8