152 FARM MACHINERY 



erly unless timed. By this is meant the adjustment of 

 each part so it will do its share at the proper time. Marks 

 are placed on the teeth of gear wheels and sprockets to 

 enable them to be properly timed. Some binders are 

 timed in as many as five places. 



6. The knotter pinion must fit to the tyer wheel, and 

 there must not be any lost motion. The tyer wheel, or 

 cam wheel, may be set up against the knotter pinion, but 

 if worn the knotter pinion must be replaced. If the 

 knotter hook does not turn far enough to close the finger 

 on the twine, a knot will not be tied. 



7. If the cord holder does not hold twine tight 

 enough, the twine will be pulled out before the knot is 

 made. It should require a force of about 40 pounds to 

 pull the twine from the disk. Adjustment is made with 

 the cord-holder spring. 



8. If the disk does not move far enough, the knotter 

 hook will grasp only one cord ; hence a loose band with a 

 knot on one end. 



9. If the needle does not carry the twine far enough, 

 the hook will grasp only one cord, and hence a loose band 

 with a loose knot. The travel of the needle is adjusted 

 by the length of the pitman. The needle may become 

 bent, as it is made of malleable iron, but it will permit of 

 being hammered back into form. 



10. If the knife is dull, it may pull the twine from the 

 hook before the knot is made. 



11. The compress spring relieves the strain on the 

 machine when the needle compresses the bundle. It 

 should never be screwed down until dead in an effort to 

 make larger bundles. 



12. The bundle-sizer spring not the tension or 

 compress spring should be used to make tight 

 bundles. 



