Product Description
GW 524 hydraulic seal kit engineered for manual pallet jack maintenance. Contains polyurethane and nitrile rubber seals for main ram and plunger, compatible with manual hydraulic pump assemblies operating up to 3000 PSI. Application covers standard manual pallet jack hydraulic cylinders with supported bore sizes 31.5 mm–41 mm and rod diameters 14 mm–20 mm. Cross-reference part numbers not available.
Specifications
Material
| Seal Material | Polyurethane and nitrile rubber, compatible with hydraulic oil |
Part Numbers
| Manufacturer Part Number | GW 524 |
| OEM Part Number | GW 524 |
Frequently Asked Questions
Q: Is GW 524 compatible with my manual pallet jack hydraulic cylinder?
A: GW 524 works with standard manual pallet jack hydraulic cylinders having bore sizes between 31.5 mm and 41 mm and rod diameters between 14 mm and 20 mm. Check your jacks technical plate or cylinder body markings to confirm bore and rod diameter before ordering. If your cylinder falls outside these ranges, GW 524 will not seal properly and will cause pressure loss or leak.
Q: What seals are included in the GW 524 kit?
A: GW 524 contains polyurethane and nitrile rubber seals engineered for the main ram and plunger of manual hydraulic pump assemblies. The kit includes replacement seals only, not backup rings or bushings. These materials are compatible with standard hydraulic oil and rated for systems operating up to 3000 PSI.
Q: How do I install GW 524 seals in my pallet jack pump?
A: Drain the hydraulic fluid completely before disassembly. Remove the pump from the jack and disassemble the cylinder to access the main ram and plunger. Carefully remove old seals using a soft tool to avoid scoring the seal bore or rod. Clean all surfaces with a lint-free cloth. Install new polyurethane and nitrile seals in the same order and position as removed, using a light coat of hydraulic oil to ease installation. Reassemble and refill with clean hydraulic oil.
Q: What are the symptoms that GW 524 seals need replacement?
A: Signs of failing seals include visible hydraulic oil leaks around the ram rod or plunger, loss of lifting pressure or inability to raise the load fully, spongy pump handle resistance, or slow descent with load applied. If you observe any of these symptoms, drain the oil and inspect the ram and plunger seals for wear, cracking, or hardening. Replace seals immediately to prevent complete system failure.
Q: What is the pressure rating and storage requirement for GW 524?
A: GW 524 is rated for hydraulic systems operating up to 3000 PSI. Store the kit in a cool, dry environment away from direct sunlight and extreme temperatures, which can degrade the polyurethane and nitrile rubber materials. Do not open the kit until installation is ready. Once installed, seals typically last 3 to 5 years depending on usage frequency and fluid cleanliness.
