McDonnell & Miller 310439 Bellows Bracket Assembly 30067439-890 the part should be replaced

the part should be replaced to prevent motor overheating

this OEM component provides a direct fit for 24-inch diameter motor shafts

Common causes include a dirty blower wheel

It is compatible with a wide range of model series

including adjustable temperature differential (swing) settings and setpoint limits to prevent system short-cycling

McDonnell & Miller 310439 Bellows Bracket Assembly 30067439-890 the part should be replacedThe McDonnell & Miller 310439 Bellows Bracket Assembly (Model BA 51 05) is a critical service component designed for Series 51, Series 51 2, Series 51S, and 51S 2 mechanical water feeders. As a veteran technician knows, the integrity of the bellows assembly is paramount for maintaining the precise linkage between the float and the valve mechanism. Over time, internal stress and sediment buildup can fatigue the bellows, leading to sluggish response or