n2585722
Well-known member
I modified a Intllab pump with a different motor to allow two pump heads on a single dosing pump. This has been in use since around March of 2021. It has been running so good that I decided to modify one of the spares like this. This time I got some photos as I was doing this. The first three photos below are of the dual head motor assembly and of a Intllab single head motor assembly. The only thing I can tell that is different is the length of the shaft on the motor. The dual head assembly was around $20 and the single head assembly was around $10. Both were purchased from Amazon.
The photo below is of the dual head assembly disassembled for use.
Below is a photo of the pump being modified.
Below is a photo of the bottom of the pump with the bottom removed. Two of the rubber feet in back have to be removed to gain access to the screws. There is another screw under the CE label that also has to be removed. I assume the sticker is a way for them to detect if the pump has been tampered with for warranty purposes.
Below is a photo with the motor removed. The wires are still attached.
Below is a photo of both motors side by side after detaching the wires with a soldiering iron.
Below is a photo of the new motor attached to the wires. The red dot on the motor is near the lug attached to the red wire. I would assume that if hooked up the opposite direction the motor would turn clockwise instead of counterclockwise.
Below is the pump back together with both pump heads installed.
Below is a photo after the tubing was changed to longer tubing and a flow catch was done. The flow was 60ml a minute with the pot setting in the photo. This seems to vary from pump to pump so a flow catch is required to get the correct value. This pump is ready to use if I need to replace the one in use. On the green pump head the clips are slightly closer together than the white ones so the pump head snapped back on the pump has a tighter fit and is harder to get off than the white pump heads. After these photos I started using the white pump heads since they were eaiser to get on and off the pump.
This is my first post here in quite a while. It took me a while to get this done here. Over half the photos were too large and had to be cropprd to get then in. I am not sure of the exact size limit but the originals were taken with an iPad. Also I was un aware of the 10 photo limit so I had to reduce the number of photos. Now that I am aware of this I will have to account for that on the next post.
The photo below is of the dual head assembly disassembled for use.
Below is a photo of the pump being modified.
Below is a photo of the bottom of the pump with the bottom removed. Two of the rubber feet in back have to be removed to gain access to the screws. There is another screw under the CE label that also has to be removed. I assume the sticker is a way for them to detect if the pump has been tampered with for warranty purposes.
Below is a photo with the motor removed. The wires are still attached.
Below is a photo of both motors side by side after detaching the wires with a soldiering iron.
Below is a photo of the new motor attached to the wires. The red dot on the motor is near the lug attached to the red wire. I would assume that if hooked up the opposite direction the motor would turn clockwise instead of counterclockwise.
Below is the pump back together with both pump heads installed.
Below is a photo after the tubing was changed to longer tubing and a flow catch was done. The flow was 60ml a minute with the pot setting in the photo. This seems to vary from pump to pump so a flow catch is required to get the correct value. This pump is ready to use if I need to replace the one in use. On the green pump head the clips are slightly closer together than the white ones so the pump head snapped back on the pump has a tighter fit and is harder to get off than the white pump heads. After these photos I started using the white pump heads since they were eaiser to get on and off the pump.
This is my first post here in quite a while. It took me a while to get this done here. Over half the photos were too large and had to be cropprd to get then in. I am not sure of the exact size limit but the originals were taken with an iPad. Also I was un aware of the 10 photo limit so I had to reduce the number of photos. Now that I am aware of this I will have to account for that on the next post.
