Tennant ATLV 4300 Service Manual page 185

Series 26 - Model 26000 Single Gear Pumps
Note
Wear Plate Identification
A product improvement has been made to the Model 26000 gear pump with a new designed wear plate. To identify the new wear
plate, look for grooves placed in the seal side of the wear plate as shown below.
New Groove
OLD NEW
Wear Plate Wear Plate
New Groove
New Groove
This new wear plate enables better pressure clamping with aerated oil in pumps 1.37 cubic inch or smaller. Aerated oil
may occur during a cold start-up in applications with long suction lines or when the mouth of the inlet line is temporarily
exposed to air.
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