Product Description
Pump Piston
Compatibility: Fits pallet jacks made by Mighty Lift, model ML55-II & ML55L. Alternate model: ML55II & ML55L; ML55 II & ML55L. SKU: ML A303
Frequently Asked Questions
Q: What is the ML A303 pump piston?
A: The ML A303 is an OEM pump piston component for Mighty Lift manual pallet jack hydraulic pump assemblies. It is the critical reciprocating component that creates hydraulic pressure during pump operation.
Q: Which Mighty Lift models does the ML A303 fit?
A: The ML A303 pump piston is compatible with Mighty Lift ML55-II and ML55L manual pallet jack models. Alternate model designations include ML55II and ML55 II.
Q: What role does the ML A303 pump piston play in hydraulic operation?
A: The pump piston moves up and down within the hydraulic pump body, drawing fluid from the reservoir and forcing it through check valves into the lift cylinder to raise the load.
Q: When should the ML A303 pump piston be replaced?
A: Replace the ML A303 if you experience weak lifting power, slow load rise, inability to raise loads, or if the pump makes grinding or knocking sounds during operation. Piston wear reduces pump efficiency significantly.
Q: Is the ML A303 available individually or only as part of a kit?
A: The ML A303 pump piston is available as an individual replacement part. It can be ordered as a standalone component or as part of complete hydraulic pump repair kits for ML55 series jacks.