I have an opportunity to buy one of these for 20, it still works, for how long? That's the million dollar question. I'm researching what the damage would be if it were to take a dump. Are spare parts available??
Just pulled a later model (blue) one of these apart. A complete dismantle, every item except the oil seal in the case was removed. The unit had very low use but went underwater in a storm and was left as is for about 5 months. Changed a chunky bearing in the motor 6203RB and meticulously dismantled, cleaned and polished the internal surfaces of the vane pump, no so much corroded as stained and discoloured on its surface from the water sitting there mixed with the vacuum oil. there was some slight surface rust on the external surface on the pump, that to was cleaned off. I noticed on reassembly there were no dowls or the like for aligning the plates and body of the vane pump. Given the tolerances of the mounting screws and the lack of an end bearing in the pump, the whole housing was free to move slightly on the alloy face its attached to. Just seems a strange way of doing it given the shaft at the motor end just runs through an oil seal and that's it. I wonder if there is some special factory alignment pins that are then replaced by screws during assembly. Anyway it works great now sucks a serious vacuum, wish I had a manometer or Torr meter to quantify that. Just wondering if anyone else has had the vane pump apart and did anything besides align and centre the plate stack and pump body pieces visually on assembly.
Same as mine 15401 cfm = 4 ,,,,Plastics are available ,, unfortunately my pump struggles to get a vacuum despite 3x oil flushes. Next step is to strip and inspect pump section .
Thanks for putting out this information. Just picked up my first used Robinair 15400 today. Just out of curiosity do you know what the viscosity of the oil is that these pumps use? thanks in advance.
I have a robinair mo 15425..it has a large port on the top that socks air good..the bottom port has the standard fitting..it doesn't do anything..what's the bottom one for?
1981 I purchased mine and still running…made USA model 15101 many AC jobs..
I have an opportunity to buy one of these for 20, it still works, for how long? That's the million dollar question. I'm researching what the damage would be if it were to take a dump. Are spare parts available??
Just pulled a later model (blue) one of these apart. A complete dismantle, every item except the oil seal in the case was removed. The unit had very low use but went underwater in a storm and was left as is for about 5 months. Changed a chunky bearing in the motor 6203RB and meticulously dismantled, cleaned and polished the internal surfaces of the vane pump, no so much corroded as stained and discoloured on its surface from the water sitting there mixed with the vacuum oil. there was some slight surface rust on the external surface on the pump, that to was cleaned off. I noticed on reassembly there were no dowls or the like for aligning the plates and body of the vane pump. Given the tolerances of the mounting screws and the lack of an end bearing in the pump, the whole housing was free to move slightly on the alloy face its attached to. Just seems a strange way of doing it given the shaft at the motor end just runs through an oil seal and that's it. I wonder if there is some special factory alignment pins that are then replaced by screws during assembly. Anyway it works great now sucks a serious vacuum, wish I had a manometer or Torr meter to quantify that. Just wondering if anyone else has had the vane pump apart and did anything besides align and centre the plate stack and pump body pieces visually on assembly.
Same as mine
15401 cfm = 4 ,,,,Plastics are available ,, unfortunately my pump struggles to get a vacuum despite 3x oil flushes. Next step is to strip and inspect pump section .
Thanks for putting out this information. Just picked up my first used Robinair 15400 today. Just out of curiosity do you know what the viscosity of the oil is that these pumps use? thanks in advance.
Is that the 15400. What size capacitor does that pump come with?
I have a robinair mo 15425..it has a large port on the top that socks air good..the bottom port has the standard fitting..it doesn't do anything..what's the bottom one for?
Como desarmar esta máquina por completo cuando gotea por el eje por detrás??