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Hayman Reese Weight Distribution Systems Technical and Customer Service Guide
Overview
Hayman Reese Weight Distribution Systems are engineered to enhance towing safety and performance by restoring the tow vehicle's natural geometry. This is achieved by redistributing the towball weight across all axles of both the tow vehicle and the trailer, which offers several benefits:
- Restores correct suspension and steering geometry for positive towing control.
- Returns the natural balance of the tow vehicle, reducing excessive tyre wear.
- Restores original braking efficiency and headlight alignment.
- Distributes towball weight to all axles, assisting in maintaining load stability.
Product Range and Specifications
Recommended Weight Distribution System by Ball Weight
- Mini (0-80kg)
- Intermediate (80-135kg)
- Medium (135-275kg)
- 800lb: Standard Series Heavy Duty 30” Spring Bars (Part Number: 78003)
- 600lb: Classic Series Heavy Duty 28” Spring Bars (Part Number: 76002F)
- Heavy (275-365kg)
- 600lb: Classic Series Heavy Duty 30” Spring Bars (Part Number: 76003F)
- Super Heavy (365-545kg)
- 600lb: Standard Series Heavy Duty 30” Spring Bars (Part Number: 76003)
Sway Controllers
- Friction Sway Control: Compatible with all models.
- Dual Cam HP™ Sway Control: Compatible with all models.
Model Features
Classic Series
- For Heavy Duty Towing: Offers fine tooth adjustment washer for up to 9 head angle adjustments and a drop shank for 6 incremental adjustments. Compatible with Dual Cam HP™ Sway Control. Features a cast head with integrated Friction Sway tab.
- Suitable Ball Weights: 365kg-545kg for Super Heavy Duty, 275kg-365kg for Heavy Duty.
Standard Series
- For Intermediate to Medium Duty Towing: Utilizes a four bar (4 x 19mm) system with hex cam adjustment washer allowing for up to 6 head angle adjustments. Drop shank allows for 6 incremental adjustments. Compatible with Dual Cam HP™ Sway Control. WDH head includes integrated Friction Sway tab.
- Suitable Ball Weights: 135kg-275kg for Medium Duty, 80kg-135kg for Intermediate.
Classic vs. Standard
- Classic Series: Traditional welded head, trunnion style spring bars with integrated cams. Available in 28” and 30” options.
- Standard Series: Lighter, durable cast head, round style spring bars with integrated cams - ideal for caravans with 6” deep A-frames. Suitable for ball weights 0-80kg.
Installation and Adjustment
- Snap Up Brackets: Make raising and lowering the chain effortless.
- Adjustment Washers: Allow for precise head angle adjustments to suit towing requirements.
- Drop Shank: Provides incremental height adjustments for optimal towing setup.
Warranty
Backed by the Hayman Reese Lifetime Warranty, ensuring peace of mind and reliability for the duration of the product's life.
Troubleshooting
- Excessive Sway: Check if the weight distribution system is correctly adjusted and if the sway control is properly engaged.
- Reduced Steering or Braking Responsiveness: Ensure the system is set up to distribute weight evenly across all axles.
- Misaligned Head Lamps or Excessive Tyre Wear: Re-adjust the system to restore the vehicle's natural balance and alignment.
For further assistance, refer to the detailed installation and adjustment instructions provided with the product or contact technical support.