Product Description
CASTER WHEEL
Frequently Asked Questions
Q: What is a caster wheel and how does it differ from a load wheel?
A: A caster wheel, such as the SU S9773, is a directional wheel that swivels to allow the truck to turn. Unlike fixed load wheels that support most of the load, caster wheels enable steering and maneuverability. The SU S9773 is designed for the steering axle of electric lift trucks.
Q: What is the load capacity and wheel size of the SU S9773?
A: Exact specifications for the SU S9773 depend on the truck model and axle configuration. Caster wheels typically support 15 to 25 percent of the total truck load capacity. Verify the truck model specifications and maximum load ratings before operating at rated capacity.
Q: How often should the SU S9773 caster wheel be inspected or replaced?
A: Inspect the caster wheel monthly for wear, cracking, or bearing play. Replace the wheel if you notice steering is stiff, uneven turning resistance, or visible damage to the wheel. Worn caster wheels reduce steering response and can cause the truck to drift. Plan replacement every 2 to 4 years under normal use.
Q: What causes caster wheel failure on electric lift trucks?
A: Common causes of caster wheel failure include impact with obstacles, worn steering bearings, misaligned truck frames, and bearing lubrication breakdown. If the caster wheel binds or does not swivel freely, the steering column or pivot bearing may need service in addition to wheel replacement.
Q: How is the SU S9773 caster wheel installed?
A: Secure the truck frame and lower the caster end to the floor with adequate support. Remove the pin or fasteners holding the old caster wheel assembly. Slide out the old wheel and bearing. Install the new SU S9773 caster wheel onto the swivel stem, ensuring the bearing seal sits properly. Reinstall fasteners and test steering movement through full lock range.