Product Description
GWK-HPT28U-LW is a replacement load wheel kit engineered for Toyota HPT28U manual pallet jacks. The kit includes ultra-polyurethane (Shore D 70) wheels with 2.95 inch diameter and 3.94 inch width, pre-mounted with sealed ball bearings, axles, and zinc-plated fasteners. Designed for 5500 lb rated load capacity at a 24 inch center, suitable for OEM fitment and demanding manual pallet jack applications.
Compatibility: Fits pallet jacks made by Toyota, model HPT28U. SKU: GWK-HPT28U-LW
Specifications
Material & Construction
| Polyurethane Hardness | Shore D 70 |
| Axle Material | Case-hardened steel |
Mechanical Specifications
| Wheel Material | Ultra-Polyurethane, 70D durometer hardness |
Part Numbers
| Manufacturer Part Number | GWK-HPT28U-LW |
| SKU | GWK-HPT28U-LW |
| Compatible Equipment Model | Toyota HPT28U manual pallet jack |
Performance Specifications
| Service Factor | 1.0 (continuous manual service) |
Frequently Asked Questions
Q: What is included in the GWK-HPT28U-LW load wheel kit?
A: GWK-HPT28U-LW includes two replacement load wheel assemblies engineered for Toyota HPT28U manual pallet jacks. Each wheel is Ultra-Poly Shore D 70 durometer, 2.95 inches in diameter by 3.94 inches in width. Wheels come pre-mounted with sealed ball bearings, case-hardened steel axles, and zinc-plated fasteners ready for direct installation.
Q: Is GWK-HPT28U-LW compatible with Doosan HPT28 or Toyota HPT28U without the U designation?
A: No. GWK-HPT28U-LW is engineered exclusively for Toyota model HPT28U. The U designation indicates a specific generation with different axle centers and bearing configurations. Doosan HPT28 and older Toyota HPT28 models use different wheel dimensions and axle patterns. Installing this kit on non-HPT28U jacks will result in improper fit, wobbling, or steering problems.
Q: What load capacity do GWK-HPT28U-LW wheels support?
A: GWK-HPT28U-LW wheels support the rated 5500 pound load capacity of the Toyota HPT28U jack at a 24 inch load center. The wheel design and axle material are engineered for this specification. Do not exceed the rated load capacity, as this will cause accelerated bearing wear, seal failure, and potential wheel failure.
Q: How do I diagnose if my HPT28U load wheels are failing?
A: Warning signs include grinding or squeaking noises during operation, visible flat spots or cracks in the polyurethane, wobbling at low speeds, and loss of steering control during turning. To test, lift the jack off the floor using a jack stand, spin each wheel by hand, and listen for grinding. Wheel shake side to side indicates bearing failure. If any signs are present, do not operate the jack and replace the wheels immediately.
Q: What maintenance extends the life of GWK-HPT28U-LW wheels?
A: Maintain smooth operating surfaces and inspect wheels monthly for wear and debris. The sealed bearing design requires no grease maintenance. Remove dirt, oil, or grease from the wheel surface with a damp cloth. Store the jack in a dry, climate-controlled space. Do not subject wheels to extreme temperatures, caustic chemicals, or sharp impacts. Typical service life is 3 to 5 years under moderate warehouse use.
Q: What tools are needed to install GWK-HPT28U-LW, and how long does installation take?
A: You will need wrenches, a lift table or jack stand, and possibly a cotter pin puller. Remove fasteners securing the old axle assembly, slide off the old wheels, and install new assemblies in reverse order. Ensure bearing seals face outward and fasteners are snug but not over-tightened. Installation typically takes 30 to 45 minutes. Consult the Toyota HPT28U service manual for torque specifications if available.