Flender/Flender Gear Units/Helical speed reduction gearbox H4
he guards, the knife edges in extreme positions may or may not coincidewith guards, but generally the knife edge stroke

length() for all types of cutters will liebetween 7 and 1 mm. The knife edge stroke length, sin the standard-type

cutter-bar, is equal to the distance between the adjacent guards, and the knives in their extreme positions lie in the

ngers. The standard cutters with /H1.2-mm stroke or pitch are used in mowers and reapers (grass, cereal, and commercial crops).

The 9-mmpitchcutters are used to cut thick-stalk commercial crops, corn, sunower, and the like. Thedistance between the axes of symmetry of successive guards in low-cuttype cutter-bar 7 DattaTable 4 Performance Range of Mametora Reaper in Developing Countries Sl. no. Particulars India Indonesia Pakistan Philippines Thailand 1 Crop condition Crop Paddy Paddy Wheat Paddy PaddyVariety Jagannath IR-3 Sandal IR-3,4,4 RD-7 Susceptibility to shattering Yes Yes Yes Yes, no, no Yes Plant height (cm) 4 6 8 9 Grain yield (/ha) 2.2.8 3.5.4 3.9 4.1.9 3.3.0 2 Field performance Forward velocity, (km/) 0.8.8 0.9.0 1.0 0.7.1 1.0.5Working width (cm) 8 8 9 9 9 Field capacity (ha/) 0.0.0 0.0.0 0.0 0.0.1 0.0.1 Field efciency (%) 8 6 7 7 6 Fuel (gasoline) consumption (/ha) 1.9.8 1.4.0 1.0 9.9.5 1.2.9 3 Total machine loss (shattering) (%) 8.8.0 1.0.2 1.5 2.7.3 0.5.0 4 Labor requirement (man-/ha) Unskilled Preparing eld before harvest 6.8.2 0 0 1.3.3 1.0.0 Gathering and others after harvest 3 1 5 2 2 Total 4 1 5 4 3 Skilled 1 1 1 9 9 Source : Ref. 4. Harvesting and Threshing 7 Fig. 9 Cutter-bar geometry showing different reciprocating-action cutters and major components: 1. Guard point 5. Knife clip 2. Knife guard (nger) 6. Main bar 3. Reciprocating knife 7. Knife back4. Knife bar 8. Ledger plate is half the knife edge stroke length. Hence, the knife edge stroke length, sfor low-cut type cutter, is twice the distance between the adjacent guards and lies in the rst and third ngers at extreme positions of the knife. Su