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MAINTENANCE OF THE HAND-OPERATED SIMPLE PUMP LAST UPDATED: June 25, 2018 If you are a homeowner, you must have a helper for uninstalling or installing any pump. READ EACH SECTION CAREFULLY BEFORE PROCEEDING. FOLLOW INSTRUCTIONS STEP BY STEP. Pay particular attention to anything marked ***.
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SEAL KIT DESCRIPTIONS Model 100: The SK100BU seal kit for a model 100CA pump cylinder assembly and pump head is comprised of five (5), 90 durometer u-cup seals. Three (3) u-cup seals are provided for the piston in the pump cylinder. Two urethane (with red ID marks) and one buna (with no ID marks), and two (2) buna u-cup seals are provided for the rod gland in the pump head.
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CHANGING THE PUMP HEAD SEALS 1. Using the 3/16" Allen wrench, remove the (4) 2. Hold the 3/4" stainless rod while using 1/4-20 x 1/2 shcs (socket head cap screws) that the lever arm to rotate the clevis CLOCKWISE affix the lever bracket to the pump head. to remove clevis from the 3/4"...
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CHANGING THE PISTON SEALS In order to replace u-cup seals on the piston, the pump system must be pulled from the well as the piston is at the bottom. Piston U-cup seals MUST be installed with open end of “U” facing UPWARD (see below). Install seals in the order shown in the diagrams following.
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REINSTALL PUMP SYSTEM As described in the installation instructions. They contain many detailed points you must pay attention to when installing. If you don’t have those instructions, you can Read online: simplepump.com/support/documents/simplepump-hand-pump-install1/ Or download a PDF: simplepump.com/wp-content/uploads/2018/02/SIMPLEPUMP-HandPump- Install.pdf SPECIAL NOTES: For systems that have been installed more than three times…...
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INSTALL PRESS-FIT GUIDE Install the guide as shown in the four photos below. Place guide in opening of riser tube. A mark is made on some PVC tubing at the 6.5” mark. The guide can then be pushed the correct distance into the riser tube. INSTALL SHORT ROD GLAND Thread the short rod gland into the top of the pump head.
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