--- title: How to Install Rotary Hand Pump Series Rebuild Kit description: Rebuild Kit in 26 steps. --- [Skip to content](https://support.farmchem.com/knowledge-base/how-to-rebuild-rotary-hand-pump-series-kit#main-content) [![FarmChem Logo Supporting Hands Black](https://support.farmchem.com/hs-fs/hubfs/FarmChem%20Logo%20Supporting%20Hands%20Black.webp?width=275&height=68&name=FarmChem%20Logo%20Supporting%20Hands%20Black.webp)](https://support.farmchem.com/knowledge-base?hsLang=en) - [Shop](https://farmchem.com/) - [Blog](https://support.farmchem.com/blog) - [About Us](https://farmchem.com/about-us) - [Tender Trailer Tool](https://farmchem.com/tender-trailer-tool/) - [Knowledge Base](https://support.farmchem.com/knowledge-base) Open main navigation Close main navigation - [Shop](https://farmchem.com/) - [Blog](https://support.farmchem.com/blog) - [About Us](https://farmchem.com/about-us) - [Tender Trailer Tool](https://farmchem.com/tender-trailer-tool/) - [Knowledge Base](https://support.farmchem.com/knowledge-base) - [Contact us](https://farmchem.com/contact-us/) [Contact us](https://farmchem.com/contact-us/) How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge Base](https://support.farmchem.com/knowledge-base?hsLang=en) 2. [Helpful Videos](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en) 3. [Repairs & Maintenance](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#repairs-maintenance) # How to Install Rotary Hand Pump Series Rebuild Kit ## Rebuild Kit in 26 steps.   WARNING: Relieve pump pressure and disconnect power before starting ### Directions to Install Rotary Hand Pump Series Rebuild Kit **Disassembling Pump Cover** 1. Loosen and remove nut from shaft 2. Remove washer and handle 3. Use a T25 drive to remove 2 fasteners 4. Use a socket wrench to loosen 8 fasteners 5. Remove fasteners and pump covers **Disassembling and Replacing Shaft Seal** 1. Pull shaft out through opening, remove 2-piece shaft seal 2. Place black seal then place white seal in indentation 3. Slide shaft back through pump cover 4. Reinstall the bearing plate cover, secure with 2 fasteners 1. Tighten to 32 in-lb **Removing Vanes and Gasket** WARNING: Pieces of the rotor assembly are spring-loaded, wear safety glasses when working on pump body 1. Remove 3 vane assemblies 2. Remove pump cover gasket Replacing Vanes and Gasket 1. Replace gasket, ensure it is properly seated 2. Insert 1 pin into 1 spring 3. Insert pin and spring into opening in the vane 4. Compress pin and spring towards vane 5. Insert compressed pieces into rotor opening with pin facing center 6. Repeat with remaining vane assemblies 7. Align pump cover and shaft with rotor 8. Use socket wrench to tighten fasteners to 45 in-lb 9. Place crank on shaft, secure with washer and fastener Disassembling Inlet Screen and Gasket 1. Remove pump from bung adapter 2. Use 7/16" wrench to loosen fasteners 3. Remove gasket and screen from bung adapter, wipe away any remaining debris 4. Seat screen in indentation 5. Place gasket on bung adapter 6. Mount pump on bung adapter, secure with fasteners   - [What is AgriPerks?](https://support.farmchem.com/knowledge-base/what-is-agriperks?hsLang=en) - [FarmChem Policy](https://support.farmchem.com/knowledge-base/farmchem-policy?hsLang=en) - [FAQ's](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#main-content) - [DEF FAQ's](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#def-faqs) - [Chem FAQ's](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#chem-faqs) - [General](https://support.farmchem.com/knowledge-base/faqs?hsLang=en#general) - [Helpful Videos](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#main-content) - [Repairs & Maintenance](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#repairs-maintenance) - [Product Installation](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#product-installation) - [Calibration](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#calibration) - [Product Overview](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#product-overview) - [Winterization](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#winterization) - [Assembly](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#assembly) - [Walkthrough](https://support.farmchem.com/knowledge-base/helpful-videos?hsLang=en#walkthrough) - [Product Manuals & Schematics](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#main-content) - [Calibration](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#calibration) - [Closure Instructions](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#closure-instructions) - [Product Manuals](https://support.farmchem.com/knowledge-base/product-manuals-schematics?hsLang=en#product-manuals) ## Contact **Sales & Support:** *💬 8AM – 5PM CST (M-F)* ☎ [(800)-247-1854](tel:8002471854) ✉ [Contact Us Form](https://farmchem.com/contact-us/) **Iowa Location** *📍 1017 Pearl Street, Floyd, IA 50435* **Tennessee Location** *📍 5558 Federal Ave, Memphis, TN 38118* ## Services - [Customer Portals](https://farmchem.com/customer-portals/) - [JDDEF Equipment](https://farmchem.com/jddef/) - [Senergy Equipment](https://farmchem.com/senergy/) - [Tank Monitoring](https://farmchem.com/tank-monitoring/) - [Plant Automation](https://farmchem.com/plant-automation/) - [Bulk Chem Facilities](https://farmchem.com/bulk-chemical-facilities/) - [Bulk Seed Facilities](https://farmchem.com/bulk-seed-facilities/) - [Custom Engineering](https://farmchem.com/custom-engineering/) - [FarmChem E-Quip](https://farmchem.com/e-quip/) - [All Services](https://farmchem.com/services/) ## Explore - [About Us](https://farmchem.com/about-us/) - [Customer Reviews](https://farmchem.com/reviews/) - [Terms Of Service](https://farmchem.com/terms-of-service/) - [Privacy Policy](https://farmchem.com/privacy-policy/) - [Shipping & Returns](https://farmchem.com/shipping-and-returns/) - [Online Catalog](https://farmchem.com/catalog/) - [Knowledge Base](https://support.farmchem.com/knowledge-base/?hsLang=en) - [Spray Tip Finder](https://farmchem.com/spray-tip-finder/) - [Tender Trailer Tool](https://farmchem.com/tender-trailer-tool/) - [Customer Account Form](https://farmchem.com/customer-account-form/) ![FarmChem Logo](https://farmchem.com/wp-content/uploads/2024/07/farmchem-logo.webp) ![SSL Secure Website](https://farmchem.com/wp-content/uploads/2024/07/ssl-secure-website.webp) ![Accepted Credit Cards](https://farmchem.com/wp-content/uploads/2024/07/credit-cards.webp) Copyright © 1974 – 2026 FarmChem® | All Rights Reserved