Product Description
LF PH-20280 is an OEM hydraulic pump seal kit engineered for Lift-Rite and Big Joe heavy duty manual pallet jack models, including LS100 and LS80. The kit features high-grade nitrile seals, backup rings, and gaskets tailored for pump and cylinder repair, with compatibility for bore diameters of 2.50 inches, rod diameters of 1.00 inch, and petroleum-based hydraulic fluids. The seal kit cross-references multiple part numbers and supersedes the PH-20278 kit.
Compatibility: Fits pallet jacks made by Lift-Rite, model LS100. SKU: LF PH-20280
Specifications
Hydraulic
| Seal Material | Nitrile rubber (Buna-N) with polyester backup |
Material
| Seal Hardness | 70 Shore A durometer (Buna-N O-rings) |
| Fluid Compatibility | Compatible with petroleum-based hydraulic oils (ISO VG 32, VG 46) |
Part Numbers
| OEM Part Number | LF PH-20280 |
| Manufacturer Part Number | PH-20280 |
| Alternate Manufacturer Part Numbers | LFPH20280, LFPH-20280, LRPH20280, LRPH-20280, LR PH20280, LR PH-20280 |
| Cross-Reference Part Numbers | Replaces Lift-Rite 20280, LiftRite 20280, LF20280, PL20280 |
| Supersedes | PH-20278 (HD Seal Kit) |
| Equivalent Part Numbers | Lift-Rite PH-20280, Big Joe PH-20280 |
| Compatible Models | Lift-Rite LS100, Lift-Rite LS80, and similar Heavy Duty Hand Pallet Trucks |
Frequently Asked Questions
Q: What does the LF PH-20280 seal kit contain?
A: The LF PH-20280 is a complete hydraulic pump and cylinder seal kit containing high-grade nitrile seals, backup rings, and gaskets. It is engineered for pump and cylinder repair on Lift-Rite and Big Joe heavy duty manual pallet jacks.
Q: Which pallet jack models is the LF PH-20280 compatible with?
A: The LF PH-20280 fits Lift-Rite and Big Joe heavy duty manual pallet jack models including LS100 (10,000 lb) and LS80 (8,000 lb) series. Cross-reference part numbers include LFPH20280, LFPH-20280, LRPH20280, LRPH-20280, LR PH20280, and LR PH-20280.
Q: What are the bore and rod diameter specifications for the LF PH-20280?
A: The LF PH-20280 is tailored for pump and cylinder assemblies with a 2.50 inch bore diameter and 1.00 inch rod diameter. Verify these dimensions on your equipment pump and cylinder before ordering to ensure proper seal fit.
Q: What hydraulic fluid is the LF PH-20280 designed for?
A: The LF PH-20280 is formulated for petroleum-based hydraulic fluids standard in manual pallet jack systems. Do not use with synthetic or bio-based fluids unless approved by the OEM, as alternative fluids may cause seal degradation.
Q: Does the LF PH-20280 replace the PH-20278 seal kit?
A: Yes, the LF PH-20280 supersedes the PH-20278 (HD Seal Kit). If your pallet jack currently uses the PH-20278, you can upgrade to the LF PH-20280. Verify cross-reference numbers on your parts manual before ordering.
Q: When should I replace the LF PH-20280 seal kit?
A: Replace the seal kit when the pump or cylinder develops external leaks, will not reach or maintain lift height, or the handle becomes difficult to operate. Worn seals indicate pressure loss and loss of lift capacity that cannot be restored without a complete seal kit replacement.