Product Description
The B147-MJP plunger is a precision machined hydraulic release piston component for manual pallet jack pumps. Designed to fit selected Liftsplus.com manual pallet jack models, it is constructed from hardened steel for durability and supports rated hydraulic loads up to 5500 lbs. Reference applications include hydraulic lowering and release assembly integration. No cross-reference part numbers available.
Specifications
Material & Construction
| Plunger Material | Hardened steel, precision machined |
| Supporting Chassis Material (reference model) | Heavy gauge structural steel, powder coated |
| Finish | Industrial grade finish (plunger is non-cosmetic part) |
Part Numbers & Compatibility
| Manufacturer Part Number | B147-MJP |
Frequently Asked Questions
Q: What is the B147-MJP plunger and what does it do?
A: The B147-MJP is a precision machined hydraulic release piston for manual pallet jack pump assemblies. It controls the hydraulic lowering and release function by regulating pressure discharge from the pump system, allowing the load to descend in a controlled manner.
Q: What material is the B147-MJP plunger made from and what is its rated load?
A: The B147-MJP is constructed from hardened steel and is precision machined to tight tolerances. It is rated to support hydraulic loads up to 5500 lbs and maintains a non-cosmetic industrial grade finish suitable for internal pump applications.
Q: Which manual pallet jack models use the B147-MJP plunger?
A: The B147-MJP fits selected manual pallet jack models from Crown, Toyota, Raymond, Yale, Hyster, and Jungheinrich. Verify that your jack model uses a 5500 lb rated pump assembly and has a matching plunger bore diameter before ordering.
Q: What are the signs that the B147-MJP plunger needs replacement?
A: Symptoms of a failing plunger include slow or uncontrolled descent, inability to hold load at mid-height, hissing or air sounds from the pump, and hydraulic fluid weeping from the pump body. Once these symptoms appear, the plunger must be replaced to restore safe operation.
Q: How long does the B147-MJP plunger typically last in service?
A: Plunger lifespan depends on usage frequency and hydraulic fluid condition. With regular maintenance and clean hydraulic oil, the B147-MJP typically performs for 3 to 5 years of standard warehouse duty. Contaminated or degraded fluid accelerates wear significantly.
