LJ 133

Frequently Asked Questions

Q: What is the LJ 133 STEEL BALL and what equipment does it fit?
A: The LJ 133 STEEL BALL is a component for Lo-Jo model 6600 manual pallet jacks. Steel balls are typically used as check valve components in hydraulic pump systems to allow pressure relief and prevent back flow.

Q: What is the material composition of the LJ 133?
A: The LJ 133 is manufactured from hardened steel to withstand repeated contact with pump valve seats and maintain precise sealing under hydraulic pressure cycles common in pallet jack operation.

Q: Why would a steel ball in a pallet jack pump fail?
A: Steel balls can fail due to dirt or contamination in hydraulic fluid creating micro-pitting, corrosion from water contamination, or impact damage from sediment. Contaminated fluid is the primary cause of premature failure.

Q: How do I diagnose a faulty check valve ball in the LJ 133 pump?
A: Signs of check valve ball failure include inability to build pressure, jack will not lift, jack drops load slowly when handle is released, or excessive noise during pump operation. A failed ball allows backflow and loss of hydraulic pressure.

Q: Does the LJ 133 require a specific replacement interval?
A: The LJ 133 steel ball does not have a scheduled replacement interval. It should only be replaced when check valve function fails or during preventive maintenance when the pump is disassembled for seal replacement.