Page 4 - Elevator DC Installation Guide
P. 4

PREPARATION OF DC MACHINES
KEY DC MACHINE TESTING
1. Identi cation of the motor and control system
2. Condition assessment and inspection: inspection of machine should be performed, making note of
a. Armature,  eld coil, interpole, and brake coil insulation condition b. Commutator condition and commutation
c. Brush and brush rigging condition
d. Bearing and lubrication condition
e. Brake condition (pad, drum/disk, bushings and pins, linkage) f. Fitment and mechanical integrity (shaft, laminations, sheave) g. Air gap
3. Testing of above components in accordance with ANSI/EASA AR100-2015 guidel
a. High Potential (Hi-pot) testing should ONLY be performed after acceptabl
4. Cleaning
a. All windings and parts should be cleaned (NitroCleanTM or equivalent), re
carbon dust, grit, oils, and cleaning agent residue 5. Repair as necessary
a Dynamic Test should be conducted and performance metrics documented for future use
6. Upon completion of modernization and prior to returning the elevator to service, a
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*NitroClean TM is a trademark of McIntosh Industries, Hillside, NJ
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For a list of available motor evaluation providers, visit www.elevatordrives.com/motorevaluation.


































































































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