Installation and maintenance guide for TECO-Westinghouse three‑phase induction motors, frames 56 and 143T‑449TZ, covering receiving, mounting, wiring…
This manual provides step‑by‑step instructions for receiving, locating, mounting, and wiring TECO‑Westinghouse three‑phase induction motors with frames 56 and 143T‑449TZ. It includes safety precautions, power‑supply requirements, V‑belt specifications, start‑up procedures, testing methods, and routine maintenance.
Additional sections cover lubrication schedules, bearing life tables, renewal part ordering, and contact information for technical support. The document is intended for installers, service technicians, and maintenance personnel.
| Voltage tolerance | ±10% of nameplate voltage; frequency ±5% (combined variation ≤±10%) |
|---|---|
| Maximum belt speed | 5000 ft/min |
| 260‑V motor on 208‑V system | Allowed with slightly modified performance |
| Lubrication interval for frames 143T‑256T | No re‑lubrication required (except MAX‑E1/E2) |
Yes, a 230‑V motor can be used on a 208‑V system, but its performance characteristics will be slightly modified as indicated on the nameplate.
These frames use double‑shielded, pre‑lubricated ball‑bearing motors that do not require re‑lubrication, except for MAX‑E1 and MAX‑E2 models which have re‑greasable features.