SaMASZ KDF 301 W Operator's Manual

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SaMASZ KDF 301 W Operator's Manual Manual pdf 24 page image

Operator’s manual Front disc mowersKDF- 22 -5.8. Operation (mowing)WARNING:The operator must be seated in the tractor’s driver’s seat when the machine isoperating since only from that position is he able safely and properly operate themower. Before he leaves the driver’s seat, the operator must stop the engine, applythe parking brake and turn off the tractor engine.Always use appropriate protective equipment (safety footwear, gloves, ear protection and dustmask).Before using the machine, make sure that all the safety devices are in their correct positions and in agood condition. These safety devices must be immediately replaced if they are faulty or damaged.In particular, the protective cover must be checked regularly. It must be immediately replaced if it ismissing or damaged in any way.IMPORTANT: If a disc mower is your first experience (you have mowed with 2-drum mower),you need a piece of essential information: Main advantage of disc mowers is their small power demand – 20% less tractor power, smallmoment of inertia and possibility to manufacture mowers with large working width. There is however a certain disadvantage - creased stubble, especially when it comes to lyinggrass. Straight grass may be mowed with horizontal adjustment of the mower and then thestubble will be even, but it will not look as attractive as with 2-drum or 4-drum mowers,because the knives work horizontally to the ground and inclined grass bends because of windblasts. After the grass is mowed, it stands up, which makes an impression of inaccurate mowing.Every mower may leave stripes of uncut grass when it comes to the knives which cut the grasstowards the grass direction.It is a normal phenomenon. Practically, it is not possible to achieve such attractive stubble as in2-drum mowers, because the knives work horizontally or at an angle of up to 8° to the ground,and when it comes to 2-drum and 4-drum mowers, slantwise through the ground (even 23°).Despite these ‘disadvantages’, disc mowers are ‘winning farmers’ trust’ and moderntechnologies give an opportunity to manufacture very durable mowers.The most even stubble with very low grasses is obtained with disc mowers when half of the discsrotate to the right and half to the left. A disadvantage of this system is a narrow and thick windrowwhich needs to be spread out.5.8.1. Essential information concerning mowingOptimum work parameters1. Inclination towards the front 0-5 degrees which equates to 1.8" - 2.8" of mowing height.2. Operation speed around 10 km/h or more, if the conditions allow.3. PTO rpm = 950-1000 rpm. PTO rpm less than 1000 may cause stripes of uncut grass betweenthe disc.High and inclined grass4. Heighten the cutterbar’s inclination to H = about 1.8".5. If there is no inclination the grass will be wedged on the forming drums.6. Speed can be more than 12 km/h (7.45 mph) (faster – better).7. Do not turn in the mowed grass.- Optimum inclination of the cutterbar towards the ground is between 0° to 5°. If the inclinationexceeds 5°, there might be a slight unevenness of mowed grass. It impairs slightly the qualityof mowing and has an influence on the mower’s operation. When the cutterbar is pulled in theother direction, it significantly impairs the quality of mowing and in some cases the mowerstops mowing. Besides, it may lead to premature wear or even damage of the slides andcutterbar.