26 27
Appendix 2: Tightening Torques in Nm
Suction
shut-off valve
1/2”-13 UNC
53 - 84 Nm
SW 19
5/8”-11 UNC
104 - 164 Nm
SW 23.8
Discharge
shut-off valve
1/2”-13 UNC
53 - 84 Nm
SW 19
Rotalock nut
1 3/4”-12 UNF
41 - 54 Nm
SW 50
Bottom plate
3/8”-16 UNC
57 - 68 Nm
Mounting foot
3/8”-16 UNC
57 - 68 Nm
SW 14.2 SW 14.2
Stator cover
1/2”-13 UNC
68-79 Nm
SW 18
Housing cover
3/8”-16 UNC
57 - 68 Nm
SW 14.2
Oil pump
5/16”-18 UNC
31 - 37 Nm
SW 12.7
Oil sight glass
1/4”-20 UNC
4.5 - 6 Nm
SW 11
Oil Pressure Switch 60 - 75 Nm Magnetic plug
1”-16 UN
102-136 Nm
SW 25.4
Terminal stud
10-32 UNF
3-4 Nm
SW 9
1/4”-28 UNF
5-6.5 Nm
SW 10
Terminal stud thermistors
10 - 32 UNF
3.4 - 4 Nm
SW 9
Mounting plate for termiwnals
3/8”-16 UNC
57 - 68 Nm
SW 14.2
Cylinder head
1/2”-13 UNC
129-149 Nm
SW 18
Bolt for connecting rod
1/4”-28 UNF
15 - 18 Nm
Torx Screws *
Plug 4
1/4”-18 NPTF
27 - 50 Nm
SW 17.5
* In case of replacement of the piston con-rod assemblies, clean the Torx screws and apply
Loctite 2701.
The ranges of torque values given in this specication are assembly torque. Torque after
joint relaxation must be within 15% of the minimum assembly torque unless retorque is
called for and must not be above 10% of the maximum assembly torque.
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