DC Gearbox WeedRoller Owner's/Part Manual | Page 20

SERVICE & MAINTENANCE 4.3 REPLACING ROLLER FLEX COUPLER 1. Obtain a replacement coupler kit (#51192) from your WeedRoller dealer. 2. Remove the 3/8 inch nuts that secure the roller tubes and coupler. Separate tubes and remove existing coupler (Figure 14). 3. Push the new bushings into holes on one side of both new flex coupler beltings. Align the bolt holes on the two flex coupler beltings. 4.4 REPLACING THE GEARBOX 1. Remove roller tubes and seal cover. 2. Remove 1/4" x 1-1/2" screws (4) securing the pivot tube weldment to the gearbox. 3. Install all replacement parts in correct order. (Figure 15) 4. Insert and tighten 1/4 x 1-1/2" screws (4) removed in step 2. 4. Insert one bolt through both holes in flex coupler beltings; skip a hole, and insert another bolt. 5. Repeat step 4 until you have inserted four bolts in one side. Insert the remaining bolts through the four open holes on the opposite side on the flex coupler belting. 6. Place a new wear plate over the bolt ends on one side of the flex coupler belting. Insert the bolt ends into the bolt holes on one roller tube and secure with 3/8 inch washers and nuts. Repeat to attach opposite coupler side to remaining tube end. Flex Coupler Belting Roller Tube Wear Plate Wear Plate Roller Tube Figure 15: Replacing the Gearbox Figure 14: Replacing Flex Coupler 4.5 INSTALL A NEW MAGNET NOTE 1. Open the WeedRoller cover. Check flex coupler drive head adapter bolts every 50 hours of operation for tightness. Failure to maintain proper tightness may result in damage of components and/or lost parts. 2. Loosen machine scre secured by locknut. 3. Snap magnet off magnet mount assembly. 4. Snap replacement magnet on magnet mount assembly. 5. Tighten locknut to secure machine screw. 14 WeedRoller Owner's/Parts Manual 51285 R121411