Product Description
PISTON & CYLINDER assembly
Frequently Asked Questions
Q: What does SKU 800017709 contain and what is it used for?
A: SKU 800017709 is a piston and cylinder assembly for manual pallet jack pumps. This assembly converts manual lever force into hydraulic pressure to raise and lower the load platform. It is a complete subassembly with matched piston and cylinder components.
Q: Which manual pallet jack models are compatible with this assembly?
A: This piston and cylinder assembly is compatible with manual pallet jacks from Crown, Toyota, Raymond, Yale, and Clark. Confirm your jacks cylinder bore diameter and rod diameter match this assembly before ordering, as sizing varies by manufacturer.
Q: What material is this piston and cylinder assembly made from?
A: The cylinder barrel is precision-honed ductile iron or steel, and the piston is hardened steel with integrated sealing rings. This material combination resists corrosion from hydraulic fluid exposure and provides long seal life under pressure cycling.
Q: What pressure rating does this assembly handle?
A: Manual piston and cylinder assemblies typically handle 2,200 to 2,500 PSI maximum working pressure. Do not exceed the pressure rating of your specific pallet jack, as this can cause seal failure and loss of lift capacity.
Q: When should this piston and cylinder assembly be replaced?
A: Replace this assembly if the jack does not hold load pressure, shows visible oil seepage from the cylinder, or if the handle feels mushy or does not produce lift after new seals have been installed. Internal damage or piston scoring requires full assembly replacement.