Changing Fertilizer Transmission Sprocket CombinationsThe type of augers (low-rate, regular-rate or high-rate) installed in the hoppers and the combination of driver and driven sprockets determines the rate of fertilizer applied. To change augers in hoppers, see REPLACING DRY FERTILIZER AUGER SECTIONS in Service-As Required section. |
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IMPORTANT: Improper alignment can cause drive failures. Sprockets must align properly with chain tightener and be secured with rubber spacers. Check to be sure chain runs freely on selected sprockets. NOTE: There are two sets of fertilizer reversing sprockets (two 36-tooth sprockets for dry fertilizer; one 18-tooth and one 48-tooth sprocket for liquid fertilizer-squeeze pump). To change sprockets, proceed as follows: 1. Loosen idler sprocket (A). 2. Remove quick-lock pins (B) from sprocket shafts, change to correct sprocket combination and replace quick-lock pins. 3. Tighten idler sprocket. 4. Pull forward on chain tightener and install retaining hook (C). 5. Remove chain (D) from driver and driven sprockets. 6. Remove rubber sprocket spacers (E). 7. Slide desired driver and driven sprockets into alignment with chain tightener and replace chain. 8. Replace rubber sprocket spacers as required. Because the dry fertilizer attachment meters volume and not weight, and because of the differences between the many brands, analysis of fertilizer, temperature and humidity, the weight metered out can vary as much as 100 per cent from the weight calculated in the fertilizer rate chart. Check actual rate delivered in the field for accurate application (see CHECKING DRY FERTILIZER RATES in this section). |
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