Product Description
Machined steel valve cartridge for Uline manual pallet jack models, designed as a slip-in hydraulic pressure relief component for pump assemblies. Compatible with multiple Uline pallet truck models up to 5,500 lb load capacity. Includes o-ring removable cartridge for maintenance and leak prevention.
Specifications
Hydraulic
| Valve Type | Slip-in hydraulic pressure relief cartridge |
| Pressure Release Application | Hydraulic system for manual pallet jack—controls fluid release to lower forks |
| Seal Kit Compatibility | Compatible with Uline ACZ5 Seal Kit (H-4197) |
Material
| Material Specification | Machined steel cartridge, nitrile butadiene rubber (NBR) seals |
| Finish | Uncoated machined surfaces |
Part Numbers
| Manufacturer Part Number | UE H-2708-AC321 |
| OEM Part Number | H-2708-AC321 |
| Compatible Models | Fits Uline pallet truck models H-2708, H-2900, H-3045, H-5387, H-7504, H-3762, H-3763, H-6710, H-2186, H-9612, H-8921 |
Frequently Asked Questions
Q: What equipment is the UE H-2708-AC321 valve cartridge compatible with?
A: The UE H-2708-AC321 fits Uline manual pallet truck models H-2708, H-2900, H-3045, H-2186, H-3762, H-3763, H-5387, H-6710, H-7504, H-8921, and H-9612. All are manual hydraulic pallet jacks with 5500 lb capacity rating. Verify your model number for correct fitment.
Q: What is the UE H-2708-AC321 valve cartridge used for?
A: This is a slip-in hydraulic pressure relief cartridge designed to regulate and release excess hydraulic pressure in the pump assembly. It prevents over-pressurization and protects the hydraulic system from damage.
Q: Does the UE H-2708-AC321 include sealing components?
A: Yes. The UE H-2708-AC321 includes a removable o-ring seal that is critical for preventing internal hydraulic fluid leaks. The o-ring can be serviced separately during routine maintenance if fluid leakage occurs.
Q: How is the UE H-2708-AC321 installed in the hydraulic pump?
A: The UE H-2708-AC321 is a slip-in cartridge component designed to slide into the pump body cavity. It does not require threading or compression. The cartridge sits in a machined cavity and seals against the pump bore.
Q: What material is the UE H-2708-AC321 manufactured from?
A: The UE H-2708-AC321 is machined from hardened steel for strength and durability under continuous hydraulic pressure cycling. Steel construction resists wear from repeated pressure relief cycling over the life of the pallet jack.
Q: What symptoms indicate the UE H-2708-AC321 needs replacement?
A: If the hydraulic pump fails to build pressure, releases pressure too quickly, or shows continuous fluid seeping from the pump cavity, the valve cartridge or o-ring may be faulty. Replace the cartridge if pressure regulation becomes inconsistent or leakage cannot be stopped.