Official: Masterflex Calcium Reactor Setup Thread

[ostrow]

I am finding various versions of 7520. Do they all work for this?

 

[zzl630]

My 7523-60 run for about 5 weeks and it shows error 3 today. I searched the manual, it says motor overload. I tried run it without load and power cycle, still does same thing. Any recommendations?

 

[slief]

My 7523-60 run for about 5 weeks and it shows error 3 today. I searched the manual, it says motor overload. I tried run it without load and power cycle, still does same thing. Any recommendations?

Since it's a motor overload error and an older unit, I'd take apart the gear box, clean all the gears and remove any of the old great and re-lube the gears. That would be the biggest source of load between the motor and the head. The only other thing it could be would be the bearings inside the motor but before digging that deep, I'd start with the gears.

 

[zzl630]

Since it's a motor overload error and an older unit, I'd take apart the gear box, clean all the gears and remove any of the old great and re-lube the gears. That would be the biggest source of load between the motor and the head. The only other thing it could be would be the bearings inside the motor but before digging that deep, I'd start with the gears.

I think you are right. Just took it apart and it was running without gear and head. Not familiar with grease, is there a special brand or model I shall use? Thank you so much l.

 

[slief]

I think you are right. Just took it apart and it was running without gear and head. Not familiar with grease, is there a special brand or model I shall use? Thank you so much l.

You should use a thick synthetic gear grease.

 

[ostrow]

Scott I have read through this thing....how does one determine what models are appropriate? Every model line has multiple last two digit versions. Did I miss a post detailing the meaning of each?

 

[vhuang168]

The models listed in the 1st page are what you should look for. There are a few more. It listed but you basically want a model that has the same parameters as the ones listed. The model numbers must be exact.

Are you looking for a brushed or brushless model?


Sent from my iPad using Tapatalk

 

[ostrow]

The models listed in the 1st page are what you should look for. There are a few more. It listed but you basically want a model that has the same parameters as the ones listed. The model numbers must be exact.

Are you looking for a brushed or brushless model?


Sent from my iPad using Tapatalk

I only rarely see 7523 in any version, but see many 752x-xx. I do not need brushless. I do not necessarily need digital.

Is any 6-600rpm model suitable?

 

[hkgar]

I only rarely see 7523 in any version, but see many 752x-xx. I do not need brushless. I do not necessarily need digital.

Is any 6-600rpm model suitable?

The RPM's are fine but you need to check the Cole Parmer flow chart for the head and tubing you will be using to see what the flow range in terms of ml/min would be. If that meets your needs than the pump is fine. There are many Cole Parmer flow controllable pumps you can choose from, but the correct head needs to work with the tubing you want to use. Most use L-17

 

[Madehtsobi]

You should use a thick synthetic gear grease.

What brand do u suggest? Thanks!


Sent from my iPhone using Tapatalk

 

[slief]

What brand do u suggest? Thanks!


Sent from my iPhone using Tapatalk

My first thought would be Molykote but I would call Cole Parmer and ask them first to see what they say.

 

[Madehtsobi]

My first thought would be Molykote but I would call Cole Parmer and ask them first to see what they say.

I tried last week but no response...


Sent from my iPhone using Tapatalk

 

[slief]

I tried last week but no response...


Sent from my iPhone using Tapatalk

That's weird. I've always gotten somebody on the line when I called there and had questions. Their support has always been pretty good.

 

[Madehtsobi]

That's weird. I've always gotten somebody on the line when I called there and had questions. Their support has always been pretty good.

Yeh... Guess I'll try again


Sent from my iPhone using Tapatalk

 

[Madehtsobi]

So I emailed again and they said to not use any grease or lubrication and to send it for service...


Sent from my iPhone using Tapatalk

 

[slief]

So I emailed again and they said to not use any grease or lubrication and to send it for service...


Sent from my iPhone using Tapatalk

If you pump is the 1-100 RPM pump, this is the gear replacement kit for it. The description says it comes with high temp silicone grease.
http://www.masterflex.com/Product/S...100_rpm_drives/HV-07553-08?SearchTerm=7553-08

Based on that, I would say you should be using a high temp silicone grease such as this:
https://www.amazon.com/Dow-Corning-Molykote-Medium-Lubricant/dp/B001VY1EL8

Or there is this gear set on eBay which should also work.
http://www.ebay.com/itm/Cole-Parmer...Kit-for-7548-08-and-7553-08-New-/222184683184

 

[Madehtsobi]

What Bout this grease?

https://www.amazon.com/gp/aw/d/B000...g_2?ie=UTF8&psc=1&refRID=BB1096N3QNP208M14Q85

I have this already.


Sent from my iPhone using Tapatalk

 

[slief]

What Bout this grease?

https://www.amazon.com/gp/aw/d/B000...g_2?ie=UTF8&psc=1&refRID=BB1096N3QNP208M14Q85

I have this already.


Sent from my iPhone using Tapatalk

It might work but that stuff doesn't indicate high temp and I think it's fairly thin. The thinner stuff will run off the gears as a result of heat where as high temp stuff will remain where it's needed.

 

[Madehtsobi]

It might work but that stuff doesn't indicate high temp and I think it's fairly thin. The thinner stuff will run off the gears as a result of heat where as high temp stuff will remain where it's needed.

Awesome thanks!


Sent from my iPhone using Tapatalk

 

[ostrow]

Got a 7524-40 for $100. Looks well used. But head seems pretty new so if the pump too loud can get brushless without head if need to. Hoping this solves different issue I have with different peristaltic feed pump.