Product Description
LOAD WHEEL
Frequently Asked Questions
Q: What is the primary difference between SU S865 and SU S855?
A: SU S865 uses a different hub bore and is designed for narrower wheel tracks on compact electric lift trucks. The S865 has a 1 inch axle diameter versus 1.25 inch on S855. Do not mix these wheels on the same truck as this creates steering instability.
Q: Is SU S865 compatible with Toyota 8FGU25 lift trucks?
A: Yes. SU S865 is the OEM equivalent for Toyota 8FGU25, 8FGU30, and early 8FGU35 models. Verify your truck serial range to confirm. Later 35 model versions use SU S865-HS (heavy-duty spindle) instead. Contact us with your chassis number for exact cross-reference.
Q: What is the rated load capacity and tire size for SU S865?
A: SU S865 is rated 4500 lb per wheel and uses a 5.00-8 tire. Total truck capacity is typically 4500 to 5000 lb depending on mast configuration. Verify your truck data plate before ordering to prevent over-spec installations.
Q: Can I upgrade from SU S865 to a heavier-duty wheel?
A: Only if the truck axle and spindle hardware can accommodate the larger wheel. Upgrading to SU S855 requires new axle shafts and could exceed frame load limits. Consult the manufacturer or a qualified technician before any wheel interchange to prevent structural failure.
Q: What maintenance interval applies to SU S865 wheels?
A: Inspect SU S865 wheels every 250 operating hours or monthly, whichever comes first. Check tire tread depth, bolt torque, and bearing play. Re-torque all hub bolts to 35 ft-lbs after the first 50 hours of use. Grease sealed bearings annually or per manufacturer schedule.
Q: What symptoms indicate SU S865 wheel failure?
A: Replace the wheel if you observe tire bulging or sidewall cracking, visible hub stress cracks, or if the wheel does not spin freely. Wobbling during operation or a grinding noise when turning indicates bearing seizure. Stop truck operation immediately and replace the assembly to prevent loss of steering control.