Introduction

The following information will guide you through using the Size Grade Number (SGN) and Hardness Test Kit. Refer to operator’s manual for details on unit safety, operation and maintenance.

This SGN kit is available through parts at your John Deere dealer.

CAUTION: Use great caution while working around the spreader. Contact with spinners and other moving parts is very dangerous. Do not adjust while machinery is moving, wear eye protection and avoid discharge from spinners. Do not ride on moving spreader.

It is highly recommended to do a Hardness Test and SGN Scale Test prior to each season and before using a new product. Testing will define granular characteristics and help determine proper spinner settings for optimal product spread.

Conduct a Spread Pattern test to check settings based on test results. Refer to Spreader Installation Instructions and Spread Pattern Manual for installation and adjustment instructions.