Hello, Nice and good explanation. maybe you can help me with this, I have a 442 with some problems, it has been standing still for over 10 years. After cleaning and oiling everything, the box played well for a few days. until sometimes the gripper motor started running at half speed and stopped somewhere during loading, if you help it by hand it will get there. I discovered that a microswitch was bad and the motor was running across the 13 ohm resistor. I have repaired this, but now I think that the motor is partly burned, it still works but needs more than 3 amps when it rotates freely. therefore my question. Can you tell me how many amps the gripper motor can absorb when running in the normal operating jukebox, and do you know the ohmic resistance of the motor as measured from the connector of the motor itself. Can I also use the other motor as a gripper motor if I replace the gear? Thank you in advance, greetings from the Netherlands👍
That motor should draw around 0.5 amp when running. It is in a circuit with a 1.6 amp fuse so your fuse should be blowing in this case. Motor runs on 28 VDC, so by Ohm's law, resistance should be around 56 ohms. I have not done it, but others have successfully swapped the gear and used a magazine motor for a gripper motor, and vice versa. Motors are identical except for the gear to my knowledge. Incidentally, I am refurbishing a 444 now, and had intermittent voltage drops and variable motor speeds with chattering relays.......all because of faulty fuse holders (1.6 amp and 3 amp ) which took me a while to diagnose. Caps on these fuse holders don't maintain enough spring pressure over the years and don't conduct as well. Just something to keep in mind when intermittent voltage loss occurs. Best of luck over your way
Where would you recommend buying a copy of that book because I tried to order one and it never came
Hello, Nice and good explanation. maybe you can help me with this, I have a 442 with some problems, it has been standing still for over 10 years. After cleaning and oiling everything, the box played well for a few days. until sometimes the gripper motor started running at half speed and stopped somewhere during loading, if you help it by hand it will get there. I discovered that a microswitch was bad and the motor was running across the 13 ohm resistor. I have repaired this, but now I think that the motor is partly burned, it still works but needs more than 3 amps when it rotates freely. therefore my question. Can you tell me how many amps the gripper motor can absorb when running in the normal operating jukebox, and do you know the ohmic resistance of the motor as measured from the connector of the motor itself. Can I also use the other motor as a gripper motor if I replace the gear? Thank you in advance, greetings from the Netherlands👍
That motor should draw around 0.5 amp when running. It is in a circuit with a 1.6 amp fuse so your fuse should be blowing in this case. Motor runs on 28 VDC, so by Ohm's law, resistance should be around 56 ohms. I have not done it, but others have successfully swapped the gear and used a magazine motor for a gripper motor, and vice versa. Motors are identical except for the gear to my knowledge. Incidentally, I am refurbishing a 444 now, and had intermittent voltage drops and variable motor speeds with chattering relays.......all because of faulty fuse holders (1.6 amp and 3 amp ) which took me a while to diagnose. Caps on these fuse holders don't maintain enough spring pressure over the years and don't conduct as well. Just something to keep in mind when intermittent voltage loss occurs. Best of luck over your way