Bill Adamsen
05-01-2014, 9:42 AM
Looking too closely during servicing a 5hp 1-phase Champion Compressor (I'd bought used a few years ago) indicated a flaw when the Baldor "explosion proof" motor was mounted. The motor's frame mount holes did not align with Champion's tank motor mount slots. Whoever did the mounting did what was probably the best they could at the time in the field, drilled new holes in the motor mounts frame, and got the thing working. On close examination, the motor pulley is neither parallel with the compressor pulley nor in alignment. Plus, they pushed the motor pulley so far "up" the motor shaft, that the pulley is rubbing on the guards. I was able to relocate the motor pulley, but now I'm considering alternatives for remounting the motor.
Alternatives
Measure carefully, drill new holes and machine new compressor mount slots - having done this previously it is not something I look forward to.
Build a mount interface (see attached drawing) which bolts to the motor and bolts to the compressor though with twice as many bolts.
Question ... I have some thick (3/4") plate aluminum (6061T6) which is about 12" by 15" ... more than enough for a single interface. Can I use this? Will there be any electrolytic or issues I'll encounter before the compressor wears out and needs replacing in a few years? The aluminum would be reasonably easy to machine. If I go with mild steel for the interface and get something perhaps the same thickness, can I drill and tap studs (use Loctite) for the motor bolts - as opposed to needing to recess the heads - which I'm not sure I could actually do. Is there a solution I haven't considered here? Thanks!
288469
Alternatives
Measure carefully, drill new holes and machine new compressor mount slots - having done this previously it is not something I look forward to.
Build a mount interface (see attached drawing) which bolts to the motor and bolts to the compressor though with twice as many bolts.
Question ... I have some thick (3/4") plate aluminum (6061T6) which is about 12" by 15" ... more than enough for a single interface. Can I use this? Will there be any electrolytic or issues I'll encounter before the compressor wears out and needs replacing in a few years? The aluminum would be reasonably easy to machine. If I go with mild steel for the interface and get something perhaps the same thickness, can I drill and tap studs (use Loctite) for the motor bolts - as opposed to needing to recess the heads - which I'm not sure I could actually do. Is there a solution I haven't considered here? Thanks!
288469