EN
10. Maintenance
10
- 87 -
951-180-076-EN
Version 0y
Maintenance of the electric motor is performed in accordance with the motor operating instructions included in the scope of delivery
for the multiline pump units. Additionally, the following maintenance actions must be performed on the motor:
Maintenance work by a qualified ATEX electrician in accordance with the enclosed motor
operating instructions:
Mointenonce intervols in operoting hours
[
oh
]
Monthly
First after ap-
prox. 500 oh
Every 10,000 oh or
once annually
Inspect the cooling air passages and surface of the motor for contamination.
X
X
X
Check air inlets and outlets on the motor fan cowl for cleanliness.
X
X
X
Check/drain condensate water; dry winding if necessary.
(according to the climatic conditions at the place of use)
X
X
X
Check the motor fixing bolts for tightness.
X
Check the terminal box fixing bolts for tightness.
X
With motor running:
Electrical characteristics are met.
X
X
The insulation resistances of the windings are sufficiently large.
X
If present, bearing insulation is implemented in accordance with the labels.
X
Check the motor bearing temperatures for possible exceedance.
X
X
The running smoothness and operating noise of the machine have not changed/worsened.
X
X
Lines and insulating parts are in proper condition and are not discolored.
X
Inspect rolling bearings and shaft seals, replace if necessary.
X
Check the lines and insulating material
X
Depending on motor type, grease quality, and motor bearings, grease may need to be replaced on
the rolling bearings. See the operating instructions from the motor manufacturer.
X
10.3 Electric motor maintenance schedule
