Table 9. 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 manual. 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. Ensure that sufficient tightening torque is applied to cable
glands. See chapter Tightening torques.
X
Groundings
(earthings)
Check groundings (earthings). Make sure that the connection resistance is
valid. Re-connect if necessary.
X
Anti-
condensation
heater
Check anti-condensation heater connections and resistance, if option installed.
If needed, contact Danfoss.
x
Cooling
system
Operation
Functioning. Cooling system functions as speci ed.
X
Tubing and
connection
tightness
No visible leakage. If leaking, tighten connections appropriately, or replace
parts.
X
Ventilation plug
Cleanliness. Clean if necessary. See chapter Cleaning.
X
Coolant ow
Coolant ow direction. Change direction by changing the connections or ow
direction from the pump. See Chapter Cooling system maintenance.
X
Coolant quality
Coolant as speci ed. Proper glycol used, and water/glycol mixture appropriate.
Re ll 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
Keep the electric machine clean. For cleaning, use non-abrasive and non-corrosive cleaning
products. Make sure that the detergent may be used for aluminium.
When pressure washing the machine, make sure that the water spray does not directly hit the
gaskets.
When cleaning the ventilation plugs, do not open / remove the plug. Clean the plug only from
the outside.
EM-PMI540-T3000
8. Maintenance
48 |
©
Danfoss | Produced By: Danfoss Power Solutions | November 2018
| BC265857716810en-000103
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