Danfoss EM-PMI540-T2000, User Manual

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Do not attempt to tighten bolts or screws that are not discussed in this user guide and that are
not needed for normal installation and maintenance procedures. The sealing of the bolts and
screws can break.
Correct supervision and maintenance of the electric machine makes sure that the electric machine has
reliable operation and designed lifetime.
Maintenance schedule
Object Check/Task Weekly Monthly Yearly
General construction Operation Noise, vibration. If clearly increased, contact Danfoss. X
Mounting Bolt tightness. Tighten to proper value if necessary. Applies to bolts and
screws that are discussed in this user guide. See Chapter
Tightening
torques .
X
Bearings Listen to any unusual noise or vibration. If exists, contact Danfoss. X
Enclosure and
connected parts Check cleanliness. Clean if necessary. See Chapter Cleaning . X
Shaft seals Check the wear. Replace if necessary. X
Electrical system Cables Wearing of the cables. Replace if necessary. X
Electrical connections Check connections. Make sure that tightening torque is correct for the
cable glands. See Chapter
Tightening torques .
X
Groundings (earthings) Check groundings (earthings). Make sure that the connection resistance is
correct. Re-connect if necessary. X
Anti-condensation
heater Check anti-condensation heater connections and resistance, if the option
is installed. If needed, contact Danfoss. x
Cooling system Operation Functioning. Cooling system functions as specified. X
Tubing and connection
tightness No visible leakage. If leaking, tighten the connections, or replace parts. X
Ventilation plug Cleanliness. Clean if necessary. See Chapter Cleaning . X
Coolant flow Coolant flow direction. It is recommended to change the coolant flow
direction by changing the connections or flow direction from the pump.
See Chapter
Cooling system maintenance .
X
Coolant quality Coolant as specified. Correct glycol used, and water/glycol mixture
correct. Refill if necessary. See Chapter
Cooling system maintenance .
X
Lubrication Relubrication (+BHS
option) Relubricate depending on the use (see Chapter Bearings and lubrication ),
if the option has been installed. Maximum relubrication interval is six
months.
X
Cleaning
Never open or remove the watertight ventilation plugs. Clean them only from the outside.
Risk of electric shock if the electric machine is cleaned against instructions allowing water to
go in to the electric machine.
Keep the electric machine clean. For cleaning, use non-abrasive and non-corrosive cleaning products.
Make sure that the detergent may be used for aluminum.
User Guide
EM-PMI540-T2000
Maintenance
58 | © Danfoss | July 2021 BC265857530809en-000202