Introduction

The Heavy Duty Multi-Spreader is built for large-scale applications, handling seed, fertilizer, salt, feed, pelletized minerals, and more. Its 16-gauge powder-coated metal construction ensures durability and corrosion resistance, while the SpinTech patented mechanism prevents leakage and allows for precise material distribution. This page provides essential setup, maintenance, and troubleshooting information to ensure optimal performance.

Sections:
Testing Your Spreader
Spreading Sand
Cleaning the Barrel & Bracketing
Storage
Installation Instructions

User Notes

Testing Your Spreader

When testing your spreader without material in the hopper, you may notice the spinner drops, then slowly rises and seals shut while still spinning. This is completely normal—your spreader requires material in the hopper to function properly.

Spreading Sand

This spreader is compatible with DRY sand only. Do not use wet sand. Sand should always be spread with the agitator installed.

Cleaning & Maintenance

Cleaning the Barrel & Bracketing

✔ Remove the spinner assembly by detaching 4 wingnuts.
✔ Rinse with water and Dawn dish soap.
✔ Fully dry before storage.
✔ Clean all brackets and mounting surfaces to ensure debris does not interfere with operation.
✔ For spinner mechanism cleaning, refer to the Spinner Mechanism Cleaning Guide.

Storage

✔ Store in a dry location.
✔ Clean & dry thoroughly before storage to prevent rust and corrosion.

Installation Instructions

Agitator Installation

Your spreader includes an agitator attachment. If spreading materials that tend to clump—such as sand or salt—you should install the agitator.

• DO NOT use the agitator when spreading seeds or fertilizer. Keeping the agitator off allows for finer control of your gap setting, ensuring precise spreading.

How to Install the Agitator

• Remove the three nuts located at the base of the three bolts on top of the spinner plate.
• Replace the original bolts with the agitator bolts (pictured in the manual).
• Pro Tip: If you have not yet assembled your spreader, the spinner plate will be exposed and unfastened, making it easier to install the agitator at this stage.
  

Parts List

• A. Vertical Hitch Bracket
• B. Horizontal Hitch Bracket
• C. Spinner Assembly
• D. Belly Support Band
• E. Hopper
• F. Power/Control Cord
• G. Lid with Calibration Guide
• H. [OPTIONAL] Side Plates for Narrowing Spread Path

Hardware List

• 2x 7/8" Nut/Bolt/Washers
• 2x 3/4" Bolt/Washers
• 2x Long 1/2" Nut/Bolt/Washers
• 6x Short 1/2" Nut/Bolt/Washers
  

Required Tools

✔ Socket/Wrench Set (to correspond with hardware list)
✔ Large Channellock Pliers (highly recommended)

Step 1: Assemble the Hopper

• Position the hopper upright with the flat back facing you.
• Insert the spinner assembly onto the mounting area, ensuring proper alignment with the bolt holes.
• Secure the spinner assembly using 4 short 1/2" bolts and tighten firmly.
  

Step 2: Install the Hitch Brackets

• Attach the vertical hitch bracket to the back of the hopper using 2 short 1/2" bolts, nuts, and washers. Secure from the inside of the hopper.
• Fasten 2x 3/4" bolts and washers into the vertical bracket's stabilizer holes.
• Tighten slowly to stabilize without damaging the hopper.
• Attach the belly band around the hopper. Adjust the band’s mounting surfaces with channellocks for proper alignment.
• Install the horizontal hitch bracket into the vertical bracket's slot. Secure with 7/8" bolts, washers, and nuts.
  

Step 3: Adjusting the Motor Plate for Calibration

The motor plate holds the motor assembly and controls the material flow rate. Calibration is adjusted by raising or lowering the motor plate.

✔ Loosen the 4 wingnuts securing the motor plate to the spreader.
✔ Raise the plate for finer materials (seed, salt, fine fertilizer) to prevent excessive flow.
✔ Lower the plate for larger granules (pelletized minerals, feed, coarse fertilizer) for better dispersion.
✔ Tighten all wingnuts securely after setting the correct gap.

📌 Refer to the Dispensing Rate Chart for specific calibration settings.

Step 4: Optional Steps

• Attach the spread narrowing plates using the wingnuts adjusted in previous steps.
• Calibration Guide is available inside the feeder lid or click here.
  

Need Help?

📧 info@spintechspreaders.com
☎ 210-408-8019