Seeburg HF100G stuck mech

So I have Ron's book on Mech's somewhere just can't locate it right now due to over crowding in my shop. so working on a customer's box which has been in storage for 10 years. Removed the dead critters and their nest. Fixed the receiver issue that was preventing selection but before I did that I got the mech moving and tripped it manually but did it past the record carriage. So now I am stuck. It is stuck to the left of A1. I can spin the motor by hand and get it the the clamp record position but went power is applied to begins the cycle to return the record and the carriage arm retracts and it stops, won't go back to scan. Any suggestions?

Try turning the power off and then trip the record manually and then manually trip
the mechanism reversing switch and then manually rotate the mechanism motor coupling by hand until the mech is in the center of the record magazine ex. A5 and then turn the power back on and see what happens

Hi Jeff. What do you mean by manually tripping the reverse switch?

From what you describe of the machine, I suspect several things a going-on. First, the lack of scan. As you may already know, these machines do not scan unless there is a pin in the selected position.

Second, a machine that has been dormant for a long time will often have gummed-up oil in the clutch. A clue here is to see what happens once the record is returned to the magazine.

If the machine keeps spinning, that is the clutch.

If it stops, that indicates that either no pin is selected or the Play Control relay isn't being powered via grounding in the memory. Dirt is a common cause for this sort of problem. Check also that the single wire from the memory unit is connected. That wire is the scan lead.

Rob

The reversing switch is found beneath the mechanism cover in the front of the mech. It's a brown wafer looking switch that is triggered at each end of the mechanisms travel by a little adjustable metal pawl on the carriage frame... One pawl on each end of the carriage that when the mechanism hits it, it pushes the switch to the other direction which causes the mechanism to move in the opposite direction.

In addition. Everything Rob said above is also pertinent?

Thanks Jeff that what I thought you were saying. I can't manually move the mech.


Rob it's not completing the cycle. It returns the record arm then it freezes. Power cycling it the motor jumps a little then freezes. Also the record arm is beyond the record magazine.

If the Mech cannot be manually moved the way I described above then it will never move under power....

I am not totally clear on the symptoms--Is the motor binding, or is the motor running, leaving the turn table turning, but nothing else is happening ?
Ron Rich

Hi Ron. So what's occuring is....

With power off I can spin the motor and the mechanism will go to the playing a record state, clamp is engaged. Upon powering up the mech then spins and does the unclamp and returns the record to the stack then binds. I think it's a clutch issue because I remove the top plate on the clutch shaft and if I raise the clutch shafts slightly the turntable continues to spin at that point. It's stuck to the far left past the A1 posistion. I plan on removing the record magazine this moring and pulling the clutch out to clean it.

Still can't find the book you sold me and I know that would be a great help.


Thanks Robert

Do what Jeffp suggested. With power off manually turn the motor coupling until the mech is near the center of the rack. Then flip the reversing switch. Turn power on. Mech should scan and reverse once the reversing switch trips.

Hi All,
If the mech is binding, it ANNA GONNA move ! Do NOT force anything !
Robert,
Try the following prior to removing the rack ( something I advise, almost never be done !).
Note which way the turntable is moving when the clamp arm is on the turntable. Turn off the power after the clamp arm is in the TT, lift the detent lever, turn the motor coupler, by hand, in the OTHER direction, while watching the safety lever plunger. If the plunger is not moving, when the clamp arm clears the stripper plate--"help it" as you turn the coupler. You should get to the point that the mech will advance along the rack by itself ( top of the clutch MUST be re-installed, bearing not bound up in doing so--). Ron Rich

So with the power off manually moving the motor only makes the pick up record move the mech does not move on the track.

Robert,
I think our posts hit at the same time--did you see mine above ?
Ron Rich

I will try that Ron. Thanks.

Yes Ron I did see it. I'll try what you suggest. I'll let you know.

Thanks
Robert