Appendix
Service and Repair Manual
Standard tightening torques
Standard torques for metric thread unions S series (up to 800 bar/
11603 Psi) for aluminum
According to ISO 9974-2/3 / ISO 6149-2/3 / DIN 3852-1/2, metric threading.
Information
Tolerances of the indicated tightening torques: 10 %.
Always lubricate the thread before tightening these parts (engine oil).
Thread Y
Form A with
sealing edge
Form B with
sealing ring
Form E with flat
sealing
Form F with O-ring
M 10 x 1.0
-
-
19 Nm
14 ft-lb
-
M 12 x 1.5
16 Nm
12 ft-lb
28 Nm
21 ft-lb
32 Nm
24 ft-lb
28 Nm
21 ft-lb
M 14 x 1.5
28 Nm
21 ft-lb
44 Nm
32 ft-lb
32 Nm
24 ft-lb
36 Nm
27 ft-lb
M 16 x 1.5
36 Nm
27 ft-lb
56 Nm
41 ft-lb
56 Nm
41 ft-lb
44 Nm
32 ft-lb
M 18 x 1.5
44 Nm
32 ft-lb
88 Nm
65 ft-lb
72 Nm
53 ft-lb
56 Nm
41 ft-lb
M 20 x 1.5
44 Nm
32 ft-lb
120 Nm
89 ft-lb
100 Nm
74 ft-lb
64 Nm
47 ft-lb
M 22 x 1.5
52 Nm
38 ft-lb
136 Nm
100 ft-lb
108 Nm
80 ft-lb
100 Nm
74 ft-lb
M 27 x 2.0
72 Nm
53 ft-lb
216 Nm
159 ft-lb
144 Nm
106 ft-lb
136 Nm
100 ft-lb
M 33 x 2.0
120 Nm
89 ft-lb
328 Nm
242 ft-lb
248 Nm
183 ft-lb
248 Nm
183 ft-lb
M 42 x 2.0
192 Nm
142 ft-lb
432 Nm
319 ft-lb
360 Nm
266 ft-lb
264 Nm
195 ft-lb
M 48 x 2.0
232 Nm
171 ft-lb
560 Nm
413 ft-lb
432 Nm
319 ft-lb
336 Nm
248 ft-lb
Tab. 71: Standard torques for metric thread unions S series, for aluminium – see figure above
Standard torques for imperial thread unions L series (up to 500
bar/7252 Psi) for aluminium
According to ISO1179-1 / DIN 3852-T2-Form X / DIN 3852-T3-Form X BSP threading.
Information
Tolerances of the indicated tightening torques: 10 %.
Always lubricate the thread before tightening these parts (engine oil).
284
© 2021 by Kohler Co. All rights reserved.
KD83V16 33525088901_2_1 EN_US
2021-07
