Piston Pump Measuring Tool Test Ring Caterpillar 1293878

The Piston Pump Measuring Tool Test Ring provides an interface to hold and set alignment between the port plate, barrel, and slipper retaining plate when measuring pump barrel lift-off shim thickness. Positioning the test ring over the barrel and retaining plate, operators can maintain a stable reference point that prevents shifting during measurement. This allows consistent determination of clearance requirements between the barrel and slipper plate. The tool aligns all relevant pump surfaces, supporting accurate evaluation of lift-off conditions without requiring repeated repositioning.Attributes:• Maintains alignment between the port plate, barrel, and slipper retaining plate.• Provides a stable reference point during the measurement of lift-off clearance.• Supports accurate determination of barrel lift-off shim thickness.Applications: The Piston Pump Measuring Tool Test Ring is used to align the port plate, barrel, and slipper retaining plate when determining the correct pump barrel lift-off shim thickness during service tasks.