Grinding fixture developed and used at Doncaster Corp shops for grinding and undercutting of trolleybus main motor commutators; fixture or grinding head enables commutator to be ground while motor is in chassis frame, handles Metro-Vick motors, types 207A1, 201DW and 201C4, and has proven accurate up to plus or minus 0.0005 in.
Trolleybus motor maintenance
Passenger Transport
Passenger Transport ; 99 , n 2508
1948
2 pages
Article (Journal)
English
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Reducing trolleybus maintenance requirements
Engineering Index Backfile | 1948
Engineering Index Backfile | 1946
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