Product Description
PISTON PUSHER
Frequently Asked Questions
Q: What is the 40591 piston pusher and what does it do?
A: The 40591 piston pusher is a hydraulic cylinder component that translates pump pressure into fork lift motion on manual pallet jacks. It connects the hydraulic piston rod to the lift mechanism and is critical for load raising functionality.
Q: Which manual pallet jack models use the 40591 piston pusher?
A: The 40591 piston pusher is compatible with manual pallet jacks from Crown, Toyota, Raymond, Yale, and other standard manufacturers. Confirm your equipment model, cylinder bore size, and piston rod diameter match before ordering.
Q: What material is the 40591 piston pusher made from?
A: The 40591 piston pusher is typically constructed from hardened steel or ductile iron with a polished or hard-chrome plated surface for corrosion resistance and smooth piston rod movement. Material selection ensures durability under repeated hydraulic cycling.
Q: How do I know if the 40591 piston pusher needs replacement?
A: Signs of piston pusher wear or failure include sluggish lift response, uneven lifting, hydraulic fluid leaks from the cylinder, or visible corrosion and pitting on the piston rod. Loss of lifting pressure indicates internal seal or rod damage requiring replacement.