Product Description
Load Wheel
Frequently Asked Questions
Q: What is the difference between the SU S329 steer wheel and the SU S322 load wheel?
A: The SU S329 is a steer wheel (front wheel on pallet jacks) while SU S322 is a load wheel (rear). The S329 is typically smaller in diameter and width, with a narrower tread to enable tight turning. Using an S329 in the load position causes undercarriage damage; using S322 in steer position makes the truck uncontrollable.
Q: Is the SU S329 equivalent to the Toyota 8FG-15 steer wheel?
A: Yes. The SU S329 is the direct equivalent to Toyota 8FG-15 and similar models. It has the same bore diameter and poly compound. Cross-reference your truck manual to confirm the steer wheel diameter before ordering. Dimension mismatch prevents proper installation.
Q: How often should the SU S329 steer wheel be replaced?
A: The SU S329 typically lasts 18 to 36 months under normal 8-hour daily use. Steer wheels wear faster than load wheels because they handle all directional forces during turning. Replace when the tread shows visible flat spots or when steering becomes notchy or jerky. Worn steer wheels increase operator fatigue and steering response time.
Q: Can I install an SU S329 without removing the steering rod?
A: No. The steering rod must be disconnected from the wheel spindle before removal. Disconnect the cotter pin and nut securing the tie rod end, then carefully slide the wheel off the spindle. Reconnect the tie rod to the new wheel spindle and re-torque the nut to specification (typically 35 to 45 foot-pounds). Verify steering alignment after installation.
Q: What symptoms indicate the SU S329 bearing needs replacement?
A: Grinding noise when turning is the primary symptom. Other signs include excessive side play when you push the wheel sideways, wheel wobble during operation, or pulling to one side while moving straight. If these occur, the entire wheel must be replaced. Attempting to regrease an old S329 bearing is not cost-effective.
Q: Does the SU S329 work on rough outdoor concrete?
A: Yes. The SU S329 poly compound resists cracking on rough surfaces better than rubber alternatives. However, prolonged use on gravel, dirt, or uneven outdoor terrain reduces wheel lifespan to 8 to 12 months. Inspect more frequently if used outdoors and replace at first signs of edge cracking.