Danfoss EM-PMI540-T2000, User Manual, Page: 33 / 74

Mounting the electric machine
Do not exceed the maximum axial and radial forces calculated for the shaft.
Document Allowed bearing loads for EM-PMI machines DOC-000454 gives more
information about this. Contact Danfoss to obtain the document.
Do not use the N-end of the electric machine for mounting the electric machine.
Use the mounting foot rails only for additional support if needed.
Refer to Chapter
Allowed mounting positions for the correct mounting positions of the electric
machine.
Mount the electric machine on a correct supporting structure as discussed in Chapter Supporting structure
requirements .
Horizontal assembly
1. Lift the electric machine to the correct mounting position. See Chapter Lifting for details .
2. The electric machine is mounted from its D-end flange (SAE1/2 transmission housing flange). SAE1/2
flywheel housing is required as a mating flange. If additional support is needed, use the mounting foot
rails on the side of the electric machine (4 pieces). For these mounting rails, use bolts of minimum
strength M10 8.8. and minimum 20mm thread engagement. See Chapter
Tightening torques for details.
3. Align the electric machine with the mating housing alignment. See Chapter Shaft alignment and load .
4. Connect the shaft of the electric machine, make sure to use full spline engagement. Lubricate the
spline.
A recommended spline lubricant is a 50/50 compound of a high temperature grease and a
molybdenum disulphide powder. When applied initially and re-applied at proper intervals, it
will help prevent fretting corrosion and premature wear. This lubricant is not soluble in oil
and should be used accordingly. Further products which may be recommended are Molycote,
Metaflux, Never Seeze, Optimol and similar.
5. Attach the mounting bolts. For steel housing the minimum length of the bolt is 40 mm and for
aluminum housing 45 mm.
Use tightening torque of 69 Nm for D-end bolts. The N-end of the electric machine is not
intended to be used for mounting.
User Guide
EM-PMI540-T2000
Installation
© Danfoss | July 2021 BC265857530809en-000202 | 33