PM P6

Frequently Asked Questions

Q: What is the PM P6 hydraulic piston and where does it go in a manual pallet jack?
A: The PM P6 is a hydraulic piston for the manual pallet jack pump assembly in the Palletmaster HSW series. It is a wear-critical component inside the pump that generates pressure strokes to lift the jack and move hydraulic fluid into the cylinder.

Q: What material is the PM P6 piston made from and why?
A: The PM P6 is manufactured from SAE 1045 chrome-plated steel. SAE 1045 is a medium-carbon steel that provides excellent strength. The chrome plating adds a hard, wear-resistant surface that withstands repeated friction cycles and resists corrosion from hydraulic fluid exposure.

Q: What is the working pressure range for the PM P6 piston?
A: The PM P6 is designed for typical working pressures up to 2500 PSI in the manual pallet jack pump assembly. This rating reflects the normal operating range for HSW series equipment.

Q: Which seal kit is recommended when replacing the PM P6 piston?
A: The PM HSW-SU seal kit is the recommended companion seal kit for PM P6 piston replacements. This kit contains all seals necessary to properly seal the pump assembly with the new piston.

Q: How do I know if the PM P6 piston needs replacement?
A: Replace the PM P6 if you experience loss of lifting pressure, weak or slow pump strokes, or hydraulic fluid leaking from the pump housing. Wear on the piston rod or damage to the chrome plating can cause loss of seal contact and system pressure.

Q: Which Palletmaster manual pallet jack models use the PM P6 piston?
A: The PM P6 is compatible with Palletmaster HSW series manual pallet jacks. Verify your equipment is an HSW model before ordering.