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PS-4002FK: How to break-in?


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#1 usadar

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Posted 30 July 2014 - 08:01 AM

For Can-Am Plus, we are going to run PS-4002FK for the first time.

 

How do you break-in this motor?

 

Thanks in advance.

 

Haruki


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#2 Tex

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Posted 30 July 2014 - 10:46 AM

Haruki,

 

I'm no motor expert, having VERY little experience at breaking in motors. But I did break in two PS4002FK's recently and won a race with one of them. Bear in mind that I have no engineering or scientific knowledge to back up what I did. I ran them in on a power supply at 3 volts "for a while". Then I let the motor cool down. Repeat the process. Later, I ran it on 5-volts "for a while" and then let it cool down again. I should also mention that the brush hoods originally held the brushes at a slight angle that did not allow the brushes to be perpendicular to the comm. I discovered this by pulling the brushes out and looking at them after breaking the motor in for a while. The top of the brush was more broken in than the bottom... I could see that the brush was making more contact at the top than the bottom... it was at a slight downward angle toward the comm. So, I fiddled with the brush hoods to get the brushes perpendicular to the comm. Anyway, I ran the motor in at 3-volts and 5-volts, sometimes in the same session(increasing from 3v to 5v and maybe even back to 3v) before letting it cool down. I just did that until the brushes were fully seated. The rules of the race I won mandated an 8-tooth pinion so I geared it 8/26 on a very fast Gerding King track... TQ'd with 4.06 and won with 324 laps(not a track record).


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#3 MikeC

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Posted 30 July 2014 - 12:45 PM

Justin breaks these motors in just like he does the Falcon 7/Hawk 7 motors.  He puts the motor in the car out of the bag, then runs it for 30-40 laps, lets it cool down, oils it, runs it for 30-40 laps, lets it cool down, oils it, then runs it for another 30-40 lap cycle, or until the lap times are consistent.  Usually by this point, the motor is as good as it's going to get.  Some times the motor will get fast during the second cycle and the lap times level off.  The leveling off of lap times is what we watch for.  The FK type motors seem to be inconsistent while still breaking in, but will level off when broken in.

 

If the motor isn't up to speed or isn't consistent by the end of the third cycle, it's probably not going to be...Move on to the next one.

 

So far though, the ProSlot PS-2002FK motors have all be excellent!  


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#4 ingram

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Posted 30 July 2014 - 04:53 PM

Justin breaks these motors in just like he does the Falcon 7/Hawk 7 motors.  He puts the motor in the car out of the bag, then runs it for 30-40 laps, lets it cool down, oils it, runs it for 30-40 laps, lets it cool down, oils it, then runs it for another 30-40 lap cycle, or until the lap times are consistent.  Usually by this point, the motor is as good as it's going to get.  Some times the motor will get fast during the second cycle and the lap times level off.  The leveling off of lap times is what we watch for.  The FK type motors seem to be inconsistent while still breaking in, but will level off when broken in.
 
If the motor isn't up to speed or isn't consistent by the end of the third cycle, it's probably not going to be...Move on to the next one.
 
So far though, the ProSlot PS-2002FK motors have all be excellent!


Hey Mike,
Where do you get to run the 4002fk?
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#5 MikeC

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Posted 30 July 2014 - 05:19 PM

Justin's been "testing" it at FTH for a possible switch from Hawk 7's.  I don't think it's going to happen though.  Not because of the motor though.  The motor is great.


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#6 Mark Wampler

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Posted 30 July 2014 - 05:47 PM

Haruki,

  There is a radius tool you can use.  I got mine from PCH  (e-slotcar.com)  You remove the brushes and fit them against the comm size radius bit and spin it around.  We use those breaking in the Speed FX 16d's. 

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#7 Bill from NH

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Posted 30 July 2014 - 07:44 PM

Mark, does that radius tool do both horizontal & vertical brushes? I've seen Crawley Distributing selling this tool for a few years, but you're the first person I know who has actually had one. 


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#8 Mark Wampler

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Posted 30 July 2014 - 08:08 PM

Not sure what you mean.  You can see how the slot where the brush fits against the wheel is lined up.  PCH sells another one "Cahoza" but you have to use it with your endbell removed.  The one I have may be out of stock.

 

http://www.e-slotcar...204-dia-cah-65/


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#9 bbr

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Posted 30 July 2014 - 08:26 PM

what dia is the commutator of the PS-4002FK?


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#10 S.O. Watt

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Posted 30 July 2014 - 09:13 PM

Don't forget to apply a drop of Slithering Reptile Oil

 

 

 

:good:


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#11 ingram

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Posted 30 July 2014 - 11:52 PM

Justin's been "testing" it at FTH for a possible switch from Hawk 7's.  I don't think it's going to happen though.  Not because of the motor though.  The motor is great.


I understand....

To me, this motor is a great answer and we will run them at our raceway
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#12 Zippity

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Posted 31 July 2014 - 01:22 AM

Mark, does that radius tool do both horizontal & vertical brushes? I've seen Crawley Distributing selling this tool for a few years, but you're the first person I know who has actually had one. 

 

Bill,

 

Yes - it does both  :)



#13 Mark Wampler

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Posted 31 July 2014 - 03:24 AM

 

Bill,

 

Yes - it does both  :)

 

 

Rotate the brush anyway inside the slot and it will cut the same direction. Zip you have a pic of both H and V brushes?


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#14 Zippity

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Posted 31 July 2014 - 06:09 AM

You can't rotate the brushes in the same slot on the radius tool. Each slot is a tight fit :)

 

I'll try and post a photograph tomorrow once daylight arrives :)

 

In the meantime, here is a photo from Gill's website:

 

 

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#15 Mark Wampler

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Posted 31 July 2014 - 11:27 AM

I often have to use an emery board and take a little material off the sides to make them fit.


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#16 Gator Bob

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Posted 02 August 2014 - 12:12 PM

I bought the red handled 'Ultimate' brand brush radius tool.   :bomb:

 

IMO ... "It's crap"..... :o  

The brush slots are not precision enough to hold the brushes rock steady while spinning the handle.   :wacko2:

 

I took the facing part of the tool out and put it in a 16D set-up and now face the brushes in in the hoods with soft/light Champion springs applying pressure.  :D


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#17 Mark Wampler

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Posted 02 August 2014 - 04:12 PM

I bought the red handled 'Ultimate' brand brush radius tool.   :bomb:

 

IMO ... "It's crap"..... :o  

The brush slots are not precision enough to hold the brushes rock steady while spinning the handle.   :wacko2:

 

I took the facing part of the tool out and put it in a 16D set-up and now face the brushes in in the hoods with soft/light Champion springs applying pressure.  :D

 

 

Got a pic of your upgrade?


You can quote me.

-Mark





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