As related in another thread I have acquired a BRPE21 with a governed LMU6 motor unit.
The motor plate states: 5PA66HV2A / Type: PA / V: 115 / CY: 60/50 / WD: SERIES
Bulletin 295B “Technical Manual for Motor Units” (https://www.navy-radio.com/manuals/tty/295B-6504.pdf) states that the LMU6 series (governed) motor is AC/DC. I infer that if I simply supply 120VAC 60Hz the governing components/circuitry will have no adverse effect, but that’s not made clear anywhere. The curved-blade power socket seems to suggest that this installation was intended for DC operation, so I’m reticent to simply supply AC “and see what happens”. (Shaft turns freely and depressing the four spring-ball oiling ports appears to indicate the presence of sufficient light-weight oil, so other than modest cleaning the motor assembly appears to be ready-to-go.)
In the TM, Figure 5 “Typical Series (Governed) Motor Unit Schematic Diagram” (PDF page 16 of 52) is the applicable schematic; there’s no indication of polarization at the LINE connection. Is this correct for 115 VDC operation (either orientation is fine)?
Can I simply power the LMU6 with 60 Hz, 120 VAC without any changes?
- paul
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