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XtraBlatt Issue 01-2019

  • Text
  • Contractors
  • Farmer
  • Farms
  • Agricultural
  • Forage
  • Silage
  • Farmers
  • Machinery
  • Krone

INFORMATION brakes

INFORMATION brakes function as they should right from the first bale of the harvest. Forgetting this tip means having to do some scrubbing with a wire brush and rubbing down with sand paper. When the net brake doesn’t function properly then round baling can quickly develop into a frustrating job. A short look over the stretch rollers can also save a lot of anger later on. Do they rotate freely? Are they free from rust and scoring? Then nothing should stand in the way of a frictionless start to the season! BLADES AND CHAINS The straw intake area and the cutting system definitely need a close pre-season inspection too. Are any pick-up tines missing? Only the full number will ensure completely clean uptake of the swath. So order replacements as soon as possible. And pick-up height should be so set that the tine tips run 2 – 3 cm above the field surface. A quick check of the air pressure in the tyres of the pick-up feeler wheels helps avoid nasty surprises during the first work of the season. The pressure should be 2.5 bar and the same applies to the baler tyres. Ideally, cutter blades should be carefully checked after the post-harvest washing and before winter storage. Have the blades worn-down uniformly? Are any blade corners broken off? Will the blades last another season? Or does it make better sense to buy new replacements during the winter? Important, too, is a keen inspection of the individual blade spring protection. With Krone, these function with a small roller over which the blade rolls back on contact with any foreign body. Check this roller. It must be free moving. Any signs of wear must also be looked for in chains and sprockets. And don’t forget to check the chain tension. The manufacturer gives tension details in the operator’s manual. The wear of the chain can be seen firstly through lengthening. As a rule, chains that have become too long can be shortened by removing a half or a whole link. The central oil lubrication system for the chain must be checked before the working season starts. Good lubrication means good work progress – this applies particularly for the chains of a round baler. The second wear criterium in this respect is the amount of play of the chain roller on the internal bolts. This free movement increases through bolt wear the older the chain becomes. Chain sprocket wear is best seen on sprocket teeth, the sharper the angle at the tips, the greater the wear. When a chain has to be replaced it’s worthwhile considering replacement of the sprockets too. Leaving an older sprocket and fitting a new chain can lead to rapid wear on the latter because the fit of the old and the new is never perfect. Tendentially one can say that working with heavy silage wears the chain out faster than when baling hay or straw. Before the season starts, the chain lubrication pump should be checked once more for perfect functioning and the setting for oil feed rate reviewed. Wear of the chain brush must be watched for too. The brush ensures that oil lands where it should without loss – on the chain. Readjustment is simple and brush replacement should be carried out when it approaches its limit of wear. All gearing oil must be changed at the required service interval, always noted in the operator’s manual and worth a second look to make sure the respective dates have not been missed, also the required oil quality and quantities. Timely replacement also applies to oil filters in the main transmission. As a rule, an indicator is featured here showing degree of oil contamination. When oil flow resistance tops a predefined value, this is shown in the contamination indicator and the filter must then be changed. CLEANING THE WRAPPER ROLLER For the wrapper in the baler-wrapper combination, the stretch rollers should be tested for ease of rotation. It is also important that the rollers should be free from sharp-edged scratches as well as left over glue, both factors that can cause the sheeting to tear or part. If needed, sand paper can be applied to smooth the surface and any remaining glue removed with brake cleaner. Additionally, both blades for cutting the sheeting must be inspected and replaced if required. To be especially sure that the electronics and sensor systems are in order after the winter pause. It’s a good tip to check them again before work starts. In this respect, the ISOBUS system offers the advantage of automatic testing (in service mode) of all sensors via operator’s terminal. Should a cable be loose or a sensor defective, this will be indicated in the test program and the fault traced « B i G M 450 FOR MULCHING TOO For its high-performance BiG M 450 mower conditioner, Krone offers an alternative equipment version with flail mulcher. Fitted is the mulcher module “Perfect TriGant” developed by Krone and the Dutch specialist firm Van Wamel B.V. Three separate mulcher units have been tailored for a perfect fit on the BiG M and can be easily fitted. The front unit is attached via quick couplers and the side units hung on the DuoGrip centre-of-gravity suspension system for clean contour following. Working width: a total 9.20 m. The positioning of the three units ensures constant overlapping, even through curves. This guarantees stripe-free results even in tightest turns, says the manufacturer. Additionally, the great manoeuvrability of the BiG M 450 means the mulchers smoothly match-up with the previous pass without any shunting on the headland. Practical features include full-hydraulic ground pressure control from the cab for all three mulcher units. Depth is pre-set through repositioning the running rollers and is easy to hydraulically adjust, again THE ZX RANGE GENTLE LOADING ACTION Sustainable forage harvesting. This always has priority with Krone and is very obvious in the latest Krone ZX range facelift that focuses on, among other things, avoiding soil compaction thus protecting fertility. A total of two new measures are introduced. The ZX 430, ZX 470 and ZX 560 get not only an electro-hydraulic suspension control for the pick-up, but also optionally larger tyres. The now standard pick-up pressure control can be steplessly and easily adjusted directly from the cab: a feature only available on directly from the cab. Two further attractions are the central lubrication system and automatic radiator cleaning. Additionally, there’s a wheelslip indicator, and mulcher units are automatically disengaged if overload occurs. « « Krone machines, reports the manufacturer. This allows constant pressure for the pickup so that it can roll gently over the soil surface and cleanly pick-up forage – even on uneven field surfaces. For best possible protection of the sensitive sward, Krone now offers the option of two 30.5-inch tyres for the tandem and tridem axle models ZX 430, ZX 470 and ZX 560. Buyers can choose between 710/50 R 30.5 and 800/45 R 30.5. Both feature a special tread profile while the tridem-axle ZX 470 is available is available only with 26.5-inch tyres. The special block tread profile ensures reliable grip by the rolling tyre, even under wet conditions, and enhances the self-cleaning attributes. « « 44 45