Product Description
WW PM-44P hydraulic check ball component for Dayton model 3KR84 manual pallet jack hydraulic pump assembly. Essential flow control element operating within directional valve circuit, positioned as item 44 in pump schematic. Integrated with plunger and overload spring assembly, secured by threaded plug bolt with O-ring seal.
Compatibility: Fits pallet jacks made by Dayton, model 3KR84. SKU: WW PM-44P
Specifications
Assembly Integration
| Related Components | Works in conjunction with plunger assembly (WW PM-43P) and overload spring (WW PM-42P) |
| Mounting Assembly | Retained by plug bolt (WW PM-45P) with O-ring seal (WW PM-46P) |
Functional Classification
| System Function | Directional flow control element within hydraulic circuit |
Part Numbers & Compatibility
| OEM Part Number | WW PM-44P |
| Equipment Compatibility | Compatible with Dayton model 3KR84 hydraulic unit assembly |
| Assembly Position | Item 44 in hydraulic pump assembly schematic |
Frequently Asked Questions
Q: What is the WW PM-44P check ball used for?
A: The WW PM-44P is a hydraulic check ball for Dayton model 3KR84 manual pallet jacks. It functions as a one-way flow control element within the directional valve circuit, allowing hydraulic fluid to move in one direction while blocking reverse flow.
Q: Where is the WW PM-44P positioned in the pump assembly?
A: The WW PM-44P is item 44 in the Dayton 3KR84 hydraulic pump schematic. It is located within the directional valve section and works as a check valve element integrated with the plunger and overload spring assembly.
Q: Is the WW PM-44P compatible with other manual pallet jack brands?
A: The WW PM-44P is designed specifically for Dayton model 3KR84 hydraulic assemblies. Do not substitute with check balls from other manufacturers or models, as pressure ratings and bore dimensions must match your equipment.
Q: What symptoms indicate the WW PM-44P check ball needs replacement?
A: A failing check ball causes hydraulic fluid to flow backward, resulting in the load slowly lowering when the handle is released, inability to maintain load height, or loss of pressure between pump strokes. Replacement is necessary.
Q: What material is the WW PM-44P check ball made from?
A: The WW PM-44P check ball is manufactured from hardened steel or stainless steel, selected for durability and resistance to corrosion within the hydraulic fluid environment. The ball surface is precision-ground for optimal sealing.
Q: How long does the WW PM-44P check ball last?
A: Under normal operating conditions with clean hydraulic fluid, the WW PM-44P check ball is highly durable and can last many years. Contaminated fluid or excessive pressure cycling may reduce lifespan. Replace when load holding performance degrades.