Piston Pump Measuring Tool Test Ring Caterpillar 1358295

The Piston Pump Measuring Tool Test Ring is a service tool to position and hold internal pump components in a fixed and aligned condition during measurement procedures. It is used during inspection or setup activities to establish correct spacing between the port plate, barrel, and slipper retaining plate. The tool allows accurate determination of the pump barrel lift-off shim thickness. The test ring creates a stable reference condition that reflects actual operating alignment without active rotation.Attributes:• Provides repeatable positioning during service and calibration tasks.• Guides the correct placement of pump parts during test preparation.• Provides a stable reference condition for measuring lift-off shim thickness.Applications: The Piston Pump Measuring Tool Test Ring is used during pump service and inspection activities where internal alignment is required to measure barrel lift-off shim thickness accurately.