Hydraulic Seal Kit for Lift-Rite and Big Joe Pallet Jacks
LF 20280 (INCLUDES 20278 AND 2
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Compatibility
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Product Description
Hydraulic Seal Kit for Lift-Rite L-55 Pallet Jacks
The LF 20280 is a complete direct replacement hydraulic seal kit designed for Lift-Rite L-55 series pallet jack pump units. This kit includes all necessary seals for the L-55 hydraulic assembly, consolidating multiple seal configurations (previously referenced as 20278 and 20279) into one comprehensive replacement package. Manufactured from nitrile rubber with double-lip, pressure-energized design for reliable performance at pressures up to 3000 PSI, the kit is engineered to restore pump integrity and load-holding capability in manual pallet jacks. Compatible with standard ISO VG 32 hydraulic fluids and designed for the 2.50 inch bore and 1.25 inch rod specifications of the L-55 pump assembly.
Specifications
Part Numbers & Compatibility
| Make | Lift-Rite, Big Joe |
| Model | L-55, LRP5000, LRP5057, LR2055, L50, LF50, LS80, LM50 |
| Fluid Compatibility | ISO VG 32 hydraulic fluids |
| Primary Part Number | LF20280 |
| Manufacturer Part Number | Lift-Rite 20280 |
| Superseded Part Numbers | 20278, 20279 |
Additional Specifications
| Compatible Hydraulic Unit | Lift-Rite L-55 hydraulic assembly |
| Rod Size | 1.25 inch |
| Seal Material | Nitrile rubber (NBR) and thermoplastic polymers |
| Seal Type | Double-lip, pressure-energized |
| Seal Type Classification | Primary pressure and dirt exclusion |
| Working Pressure | Up to 3000 PSI |
| Direct Replacement Cross-References | LR20280, LiftRite 20280, 20280 |
| Manufacturing Specifications | Manufactured to Lift-Rite factory specifications |
Frequently Asked Questions
Q: What models is the LF 20280 compatible with?
A: The LF 20280 is compatible with Lift-Rite and Big Joe manual pallet jacks including the L-55, LRP5000, LRP5057, LR2055, L50, LF50, LS80, and LM50 models.
Q: What material and design features does the LF 20280 offer?
A: The LF 20280 contains nitrile rubber seals with a double-lip, pressure-energized design. These seals are engineered for reliable performance in manual pallet jack applications and are resistant to common hydraulic fluids.
Q: How do I know when the LF 20280 needs replacement?
A: The primary indicator that the LF 20280 requires replacement is visible or internal hydraulic fluid leakage from the pump assembly. You may also notice reduced lifting speed, loss of load-holding ability, or difficulty achieving full lift height.
Q: Are there alternative part numbers for the LF 20280?
A: Yes, cross-reference part numbers for the LF 20280 include LR20280, Lift-Rite 20280, LiftRite 20280, and 20280. These are equivalent designations that may appear in older documentation or alternative supplier catalogs.