CLA Connect Open Forum

Subject: Change Machines Sometimes Dispense $1 Too Few Coins

1.  Change Machines Sometimes Dispense $1 Too Few Coins

Posted 26 days ago
I have a little issue that I wanted to run by you guys and see if you've seen the same... We have two Standard Change Machines (MC640RL-DA & SC34-RL-DA) that both dispense only dollar coins.  Each machine sometimes has a coin get stuck somewhere on the dispensing slide, causing the customer to receive $19 instead of $20, $9 instead of $10, $4 instead of $5 or $0 instead of $1.
The missing dollar always comes out when another bill is inserted on the same side or if a small fist bump is made to the front of the change machine. I've spoken with Standard Change about this issue and have tried many different things to minimize it, including ensuring that the base is properly positioned and that the slides are clean and as smooth as possible. Nothing has prevented this from occurring though. 
Interestingly we had the SC34 model when we vended only quarters and I don't recall this issue occurring at that time. Mostly I'm very happy with these machines and I hope that someone out there that dispenses dollar coins has seen something similar and found an easy solution... Thanks in advance for your help.


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Yvette Morton Williams
Store Owner/ Employee
Wash & Spin Coin Laundry
Atlanta GA
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2.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 26 days ago
Edited by Chris M 26 days ago
I had the same issue a couple of times with my SC34.  Customer said that they were a dollar short.  I thought, yeah right.   Checked the changer and there was a dollar coin lying flat on the vertical chute.

Get some brasso or never dull and clean it really well, making it nice and slick.

Or you can try washing your coins to get rid of some of the gunk that builds up over time.

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Chris M
Norfolk VA
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3.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 26 days ago
Edited by Paulie B 25 days ago
Yvette,

Have you been able to spot exactly where the coins are hanging up?
That's an important clue....

Are they hitting an edge of metal? Or are they simply stopped on the slide itself?

If you can eyeball the spot, that will help you. Maybe you can even use a mirror and a flashlight to peer into the chute.

Have you tried soaking a rag with alcohol, and wrapping it on a wire hanger so you can clean the entire slide?

Second choice would be to shoot a little graphite into the slide, preferable from the top down, but shooting up from the bottom may also work.

Third choice would be to empty the hoppers, examine the coin dispensing mech closely for anything out of whack (including alignment) and put a little graphite directly into the spinners which would carry the graphite right along the coin path.

You shouldn't have to use graphite though...It's a temporary fix.

I suspect it's either an alignment issue, dirty chute, or some kind of bent metal issue that's causing a hangup.



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Paulie B
Store Owner/ Employee
Mr Machine
New York City NY
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4.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 25 days ago
We have had this issue from time to time as well with our changer. When I emptied the hoppers to attempt to locate the problem, I found one of the screws in the slide had lost its locking nut. I replaced the nut and the slide was back to a tight fit and no longer redirecting some change into the guts of the machine. Good Luck!

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REBECCA RODRIGUEZ
Store Owner/ Employee
Largo FL
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5.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 25 days ago
I agree with Chris above.  This is also happening to me.  Get's stuck on the chute ledge because it's not steep enough.  I try to polish and keep slippery as much as possible so that the coins slide down more easily.  And, this is on a brand new $11,000 Rowe bill changer... just installed last month :-(

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Steven Matrix
Store Owner/ Employee

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6.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 24 days ago
I really appreciate all of your responses. I have been reluctant to use any substance to lubricate the slides since I am concerned that it may then get inside the coin drops and have negative effects... Has anyone seen this occur?

Steve, what do you use to polish your chutes and keep them slippery?

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Yvette Morton Williams
Store Owner/ Employee
Wash & Spin Coin Laundry
Atlanta GA
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7.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 24 days ago
Edited by Michael B 24 days ago
​Like Paulie already recommended Powdered Graphite will not leave any residue that will cause you problems like WD-40.
I would Clean, Lubricate & check every interior part for wear or loose parts etc. All metal can be polished with jewelers rouge, very fine emery cloth, scotch pad etc.

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Mike B
Multi Store Owner
Sunny Palm Harbor Florida
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8.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 23 days ago
A word of caution with the powdered graphite.  Put in on a rag or paper towel and rub it on.  If you pour it in your next few customers will end up with black hands and be very upset - I assume :-)

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James DeLeo
NY / NJ
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9.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 23 days ago
I use dry spray WD-40 to keep the ledge slippery, but more importantly is to keep it clean.  Coin grime can easily build up and acts like a gripper.

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Steven Matrix
Store Owner/ Employee
Laundry Basket Villager LLC
Phoenix, Arizona
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10.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 23 days ago
Steven & others,

I wonder how your linked to PTFE version of wd40 compares to Tri-Flow that our local locksmiths recommend over regular wd40 for less future gumming of whatever.

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Michael Walsh www.kingkoin.com
Store Owner/ Employee
King Koin Laundry, Car n Dog Wash
Bismarck ND
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11.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 22 days ago
Steve,

Thanks for the WD-40 dry lube tip! I'll be getting one to try out.

Michael,

The Tri Flow is hands down the best lubricant I have used to date. It has worked wonders on my Unimac door lock mech solenoids.
Since spraying them with Tri-Flow, I have not had to replace even 1 solenoid, and I've been doing this for over 5 years now.
It has an amazing 5 star rating on Amazon, which one does not see very often.

Tri-Flow is designed for the chains on racing bicycles, to keep them well lubricated without attacking dirt or dust on the chain.

I also use Tri-Flow for locks of course, lol. Of which, laundromats have an abundance of.


However, the WD-40 Dry lube with Teflon has the great integrated "can't lose it" straw.

https://www.amazon.com/Tri-Flow-Superior-Lubricant-4oz-Aerosol/dp/B002EX5B6O/ref=sr_1_6?ie=UTF8&qid=1511099646&sr=8-6&keywords=tri+flow

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Paulie B
Store Owner/ Employee
Mr Machine
New York City NY
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12.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 21 days ago
Thanks again all of you who responded.  Steven I've ordered the WD 40 and can't wait to give it a try. I like the idea of the control of the straw applicator.


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Yvette Morton Williams
Store Owner/ Employee
Wash & Spin Coin Laundry
Atlanta GA
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13.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 17 days ago
Adding slippery lubricant helps about 25%.  I am considering removing my ledges and having them chrome plated.

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Steven Matrix
Store Owner/ Employee

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14.  RE: Change Machines Sometimes Dispense $1 Too Few Coins

Posted 25 days ago
I set my phone to video and layed it across the top of the hopper to film the dynamics of what was causing a coin to get stuck.  In my case I needed to add a deflector shield to keep a coin from bouncing the wrong way. Mine is a dual hopper which dispensed into one common cup.  Was interesting to watch.

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Brian DeCoster
Store Owner/ Employee
Laundromania
Iowa City IA
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