Ok, this CM Lite has been good for a year and half, now it's dispensing powder erratically or none at all. Seems the aluminum dispensing tube gets locked up and will not turn. I can hear the motor either trying to turn or turning inside the box. If I give it a touch or slight spin on the tube it will turn a few turns and then stop. Just wondering if anyone else is having this problem and found a fix for it. I'll call RCBS on Monday and see what they say. I'm very tempted to open the box and see if its something easy. Thanks.. HB
RCBS Chargemaster Lite Problems
- Thread starter hambone1971
- Start date
Peterson1
Gold $$ Contributor
Try
Completely dump all powder from CM
Back (Left turn) the dispensing tube completely out
Re-attach-insert the dispensing tube
You may want to try running without the dispensing tube attached
If it runs fine you have isolated your problem
If it still runs abnormal may be just a bad motor etc,etc
Sometimes powder becomes "packed in" the sweeping apparatus and this will dislodge
Never leave powder in CM for extended time like between loading episodes
Only add about 2-3 " of powder at a time to keep from packing in the sweepers
If this works great if not call RCBS
CLP
Finally got RCBS on email and they said send it in if it was around a year old. After looking at my paperwork mine is just over 2 years old so I kept it and opened it up. The little motor on the dispenser tube is a gear motor. It has a stripped gear that turns the shaft. Got looking on the internet for gear motors and I think I found one close enough. Mine is 6 volt and best I could tell runs at 180 rpm. There are a lot of them available in different speeds. I got a couple ordered that claim 150 rpm for about $20.00 , they came and perfect fit except for I had to shorten the output shaft 1/8 inch and open the fiber glass wire board mount a tiny bit with drill for motor to slide into position and solder into pace the input wire filter board.
Put it all back together and works very well now. I can tell it runs a bit slower but that is good as it seems to hit the mark in grains more than it used to before. Before it would under shoot or over shoot a tenth or more sometimes. Photo shows motor next to a 69g SMK for size, it's small. I'm happy so far and I have a spare motor. HB
Put it all back together and works very well now. I can tell it runs a bit slower but that is good as it seems to hit the mark in grains more than it used to before. Before it would under shoot or over shoot a tenth or more sometimes. Photo shows motor next to a 69g SMK for size, it's small. I'm happy so far and I have a spare motor. HB
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Here's a link to Ebay sellers.
Gearmotor 6V N20 for sale | eBay
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Otherwise just look for gearmotor 6v N20 in your searches.
If you do replace one of these motors 4 things to be aware of.
1. A hidden screw dead center under do not remove foil/sticker to separate the cases.
2. Drain off or discharge all static from your body when working on it. Lots of sensitive stuff in that box. No need to be touching that area anyway to replace motor.
3. When putting in the motor make sure the output shaft that the plastic adapter to aluminum tube screws on is spinning CCW looking at it straight on. This will keep the tube screwed on in operation and not unscrew it. If it isn't flip the motor to circuit board 180 deg re-solder it and it should work. (This is a DC motor if wires hooked up one way it runs CC, hook them up the other way it runs CCW)
4, As soon as you get the motor back in the dispenser unit loosen all 4 screws that hold it on and gently screw in the aluminum tube. This will center the motor on the works to the tube, then slowly tighten each of the 4 screws down. Remove tube and install the motor / dispenser back into the case. Install the 3 screws that hold it in place, put tube back in from front and it should align perfectly to screw in place. Lightly screw the tube in (you don't want to strip those tiny little gears or plastic adapter to motor).
Like I said earlier a motor that is a little slower seems to work better than the original for me, I wouldn't hesitate to put in a 100 rpm model in especially for lighter loads and super accuracy.
It still wouldn't be that slow at dumping charges in my opinion. Good luck.. HB
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many thanks---will save this information --thanks againHere's a link to Ebay sellers.
Gearmotor 6V N20 for sale | eBay
Get the best deals for Gearmotor 6V N20 at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!www.ebay.com
Otherwise just look for gearmotor 6v N20 in your searches.
If you do replace one of these motors 4 things to be aware of.
1. A hidden screw dead center under do not remove foil/sticker to separate the cases.
2. Drain off or discharge all static from your body when working on it. Lots of sensitive stuff in that box. No need to be touching that area anyway to replace motor.
3. When putting in the motor make sure the output shaft that the plastic adapter to aluminum tube screws on is spinning CCW looking at it straight on. This will keep the tube screwed on in operation and not unscrew it. If it isn't flip the motor to circuit board 180 deg re-solder it and it should work. (This is a DC motor if wires hooked up one way it runs CC, hook them up the other way it runs CCW)
4, As soon as you get the motor back in the dispenser unit loosen all 4 screws that hold it on and gently screw in the aluminum tube. This will center the motor on the works to the tube, then slowly tighten each of the 4 screws down. Remove tube and install the motor / dispenser back into the case. Install the 3 screws that hold it in place, put tube back in from front and it should align perfectly to screw in place. Lightly screw the tube in (you don't want to strip those tiny little gears or plastic adapter to motor).
Like I said earlier a motor that is a little slower seems to work better than the original for me, I wouldn't hesitate to put in a 100 rpm model in especially for lighter loads and super accuracy.
It still wouldn't be that slow at dumping charges in my opinion. Good luck.. HB
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