Repair a Becker DVT 3.140 vacuum pump bearing.
Vaccum pump number 4 was tripping the breaker. The pump was hot to the touch and when it was turned back on there was a loud noise comming from it. My first thought was that it had broken vanes.
I found vanes online, while waiting for it to cool off.The the part number is 90133400 and the DVT3.140 requires 7 and the dimensions are 240 x 43 x 4.0 I found them at this site http://cfpwarehouse.com/shopsite_sc/store/html/vane_chart_becker.html
We took the cover off. And the vanes were fine.
We did find a piece of epoxy inside the fan. It looked like was used to keep the fin tubes in place.
We took the other end off to check the bearing. It was not getting any grease and was really bad.
The grease line from the zerk to the bearing went the whole length of the pump so we shortened it. Hoping that the grease wouldn’t have a chance to heat up and cook inside the line.
Vaccum pump number 4 was tripping the breaker. The pump was hot to the touch and when it was turned back on there was a loud noise comming from it. My first thought was that it had broken vanes.
I found vanes online, while waiting for it to cool off.The the part number is 90133400 and the DVT3.140 requires 7 and the dimensions are 240 x 43 x 4.0 I found them at this site http://cfpwarehouse.com/shopsite_sc/store/html/vane_chart_becker.html
We took the cover off. And the vanes were fine.
We did find a piece of epoxy inside the fan. It looked like was used to keep the fin tubes in place.
We took the other end off to check the bearing. It was not getting any grease and was really bad.
The grease line from the zerk to the bearing went the whole length of the pump so we shortened it. Hoping that the grease wouldn’t have a chance to heat up and cook inside the line.
 |
| vane end of pump, with cover and bearings removed. |
 |
| Broken epoxy that was stuck in the fan. |
 |
| Pump with all covers removed. The grease zerk on the other end of the pump had a grease tube connecting it to the bearing on the close end of the pump. |
 |
| New location, and shorter grease tube. |
 |
| Motor side of pump with bearing covers and motor mount removed. |
We replaced both bearings on each end. skf 3206a/c3 and nu 206ecp/c3
Thanks for posting this! I've got a used VTLF 250 that I want to pull apart before I run it for the 1st time.
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