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.
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 with the bearing housing.
Remove the half round rings.
Loosen and remove the head cap screws.

What exactly are adhesives? And how do you pump them? Adhesives are substances, like cement or glue, that hold materials together by surface attachment. They are made from materials such as latex, silicones, and starch. Their viscosities range from water thin to extremely viscous. And some are shear sensitive. Adhesives are used in a number of different applications including: cardboard box manufacturing, plywood, paper bags, and industries like automotive and printing. So what's required to pump the various types of adhesives?

Welcome, in this video we will guide you through the conversion from packing to an O-Pro® Barrier seal in Viking 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.

What are asphalt emulsions? And how do you pump them?
An asphalt emulsion is asphalt suspended in a mixture of water or other liquids. This makes applying the asphalt easier. Emulsions can be shear-sensitive and must be handled with care.
Asphalt emulsions are typically used in crack filling, coating roadways, or as a waterproofing substance.
So what's required to pump asphalt emulsions?
Shear sensitivity makes internal gear pumps ideal—their smooth, non-pulsating flow maintains the emulsion.

Welcome, in this video we will guide you through the replacement of O-Pro® Barrier seal o-rings in Viking 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.

The first generation of these pumps were engineered in the 1940s for truck-mounted applications. They were bolted to the chassis and driven off the PTO. That harsh environment established design features that would define the product line: a footed mounting bracket, a rotatable casing, and a thrust bearing housing for precise end clearance adjustment. The second generation saw a change to the bearing housing (while maintaining the same bearings) and an expanded range of sizes, material-specific model numbers and the offering of integrally jacketed versions.

Welcome, in this video we will guide you through the conversion from a stuffing box mechanical seal to a behind the rotor seal in Viking pumps with 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.