LS1127A This product has been replaced by a new innovation. Click here to navigate to our recommended replacement OBSOLETE Section Viking Pump LS1127A Model Downloads TSM / Catalog / Flyers / Brochures Service Manual | 1700 Download Technical Service Manuals Catalog Section | 1701 | Non-Jacketed Download Catalog Sections REPAIR RESOURCES O-ring Replacement: O-Pro® Guard Seal Quick Tip #01 - Setting End Clearance on a Viking Pump Universal Seal Pump Quick Tip #02 - Install Mechanical Seal into Stuffing Box in Viking Pump Univer… Updated: Quick Tip #03 - Install Packing into a Viking Pump Viking Pump: Converting to the O-Pro® Guard Seal DRAWINGS LS with Plain Head - 3" Class 125 ANSI RH/LH PDF STEP LS with Relief Valve - 3" Class 125 ANSI RH PDF STEP