Welcome, in this video we will guide you through the replacement of o-rings in an O-Pro® Cartridge seal for pumps with the U-Plus™ bracket. This video applies to these pump models… Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com. To begin, bend up the tang of the lock washer. Place a brass or hardwood bar into the port opening to keep the pump from turning. Loosen and remove the locknut. Remove and discard the lock washer. Loosen the bearing housing set screws.

To begin, bend up the tang of the lock washer. Place a brass or hardwood bar into the port opening to keep the pump from turning. Loosen and remove the locknut. Remove and discard the lock washer. Loosen the bearing housing set screws. Loosen and remove the bearing housing. Remove the bearing spacer collar. The collar may have come out the bearing housing. Remove the half round rings. Remove the stainless steel window guards from the bracket. Loosen the set screws on the seal sleeve to free the sleeve from the shaft. Loosen and remove the two nuts holding the seal gland to the pump.

Welcome, in this video we will guide you through the conversion from packing to Viking Pump’s O-Pro® Guard seal in pumps with the U-Plus™ bracket. This video applies to these pump models… 
Before you begin, please consult the appropriate technical service manual for safety information. A copy of the latest revision can be found on our website at vikingpump.com. 
To begin, remove the stainless-steel window guards from the bracket. 
Next, bend up the tang of the lock washer. 
Place a brass or hardwood bar into the port opening to keep the pump from turning. 

One of the most critical parts of any rotary pump is the shaft seal. In part 2 of our 5 part series on seals we take a closer look at Viking Pump's patented O-Pro® seal.

Out of all of the applications where you can find a Viking pump, chocolate may be the most delicious. Viking pumps are the pump of choice for the processing, transfer, and recirculation of chocolate. The chocolate production process can be simply described with these steps: cacao beans are roasted and ground, then mixed with oils into a semi-liquid. This early stage is known as "bitter" chocolate. From here, sugar can be added to make "sweet" chocolate - milk can be added for "milk" chocolate - and if the chocolate has been thinned down is called chocolate liquor.