RV Water Pump Repair

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=uOkAKVNcEJA

UPDATE - this pump finally died and I replaced it with another Shurflo that is much quieter and pumps better. If your pump is beyond repair, I recommend this one if a 3 gallon-per-minute pump will meet your needs. Note - as an Amazon Affiliate, I earn for qualifying purchases. • https://amzn.to/3k3hzwN • Complete tear down and reassembly of a SHURFLO RV fresh water pump, model 200-210-39. This pump had a bearing seize up in the diaphragm assembly which needed to be replaced. Cost: $6.75 for the new bearing at a local bearing supply shop. • A little further explanation of the white piece that inserts into the bearings: The side of it that is in a concentric circle with the middle part of it fits into the bearing closest to the motor. The other side of the white piece is offset from center, and that side fits into the bearing on the diaphragm side. The effect of this is to cause the diaphragm assembly to wobble and move each of the three corners in and out which pumps the water. Don't install that white insert the wrong way or the pump won't work, and may damage the diaphragm assembly when the motor is turned on. The offset side goes toward the diaphragm, concentric side goes toward the motor. To simplify things you might want to mark one end of it before disassembly to ensure it goes back together the same way. • Pump: SHURFLO 200-210-39 • Bearing: NTN 6202 LB or equivalent, 35mm OD; 15mm ID; 11mm wide • UPDATE - 02/23/2017 - This pump finally died last month during a 4-week outing to Arizona and Southern California. It never quit pumping water, but it got to the point where it would not shut off and was getting very loud. I knew the pressure switch was good because I had tested it. Finally I took it apart again and discovered that the Teflon bushing supporting the front end of the armature had worn to the point that the armature shaft had too much play in it. This caused the armature to hit the field windings, which damaged the armature. I suspect this also reduced the efficiency of the diaphragm, which wasn't generating enough pressure in the line to activate the cut off switch. • Moral of the story - grease the support bushings at each end of the armature. The teflon bushing probably won't like petroleum based grease, so use silicon grease instead (disc brake grease). At least the repair made in this video got me another 8 months of use out of it. Anyway, I ordered a new pump from Amazon, and I am very happy with it. See the first paragraph for a link to it. • #rvdiy #rvrepairs

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