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John Deere 3520 Cane Harvester Primary fan barrel & blade criteria august 2013

Jul 04, 2015

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Engineering

mattsykes

John Deere Cane Harvester Primary Fan Update

  • 1. Anti Vortex 5Ft Primary Fan & Standard Cameco / John Deere 3500 Cane Harvester Standardization. 1

2. Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades 2 Details & Descriptions. Primary Fan Wear Ring Dimensions. Tool Measure. Wear Ring Forming and Rolling. Blade Wall Clearance. Cubic Feet Minute and Engine RPM Checks. Field Fine Tuning. Report On Cane Loss. Report On Fuel Use. Final Adjustments and Fine Tuning (Checks). Confirmation of Blade Templates. Blade Forming Procedure. Audit Supplied Blades. 3. Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades 3 4. 4JK Farming System Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades 5. Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades 5 6. 6 Instruction 1. Make the string measure tool to suite dimensions shown in drawing. 2. Fit string or similar to the tool as seen in blue make the string length slightly larger than barrel. 3. Undo the hub retaining nut. 4. Fit internal measuring tool to the primary fan motor shaft.. 5. Replace the hub retaining nut so the tool can rotate without friction. 6. Holding the string as close to the internal barrel wall as possible start rotating around the barrel if the string should touch any place of the internal barrel simply cut the string. 7. Repeat this on all 8 machines to determine the minimum clearance of the internal barrel dimension. 8. Pass the tool to Talib for further work regarding primary fan blade [ standard and Anti Vortex suction barrel and fan blade tip tolerance. Recommended Minimum fan blade tip tolerance is 35 mm. Maximum fan blade tolerance for standard blades is 40mm. Anti Vortex maximum fan blade tolerance can go as high as 50mm providing CFM is not exceeded nor decreased from normal operations. Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades 7. 7 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades 8. 8 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Wear Ring Forming & Rolling 9. 9 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Wear Ring Forming & Rolling 10. 10 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Wear Ring Forming & Rolling 11. 11 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Wear Ring Forming & Rolling Rolling & Forming Circle 1.After circle is rolled the join is welded. 2.Weld protruding the rolled surface is ground to suite rolled profile. 3.Run the circle through the roller 3 more times to confirm distortion at the weld position. 4.Loosen top roller shaft and remove new wear ring. 12. 12 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Adjustment From Origional Primary and Secondry Fan Specifications Harvester #10 John Deere 3520 Date 28.11.2012 Standard Blades Test 1ST Throttle 2nd Throttle 3rd Throttle Engine RPM 850 1500 2200 Primary Fan Speed 510 900 1305 Hydraulic Flow GPM 12 22.5 35 Air Speed Air Flow CFM 2656 4671 5990 Hydraulic Pressure Reading in Working 1200 PSI 1400 PSI 2500 PSI Adjustable Condition Comments Anti Vortex Blades Test 1ST Throttle 2nd Throttle 3rd Throttle 3rd Throttle Engine RPM 850 1500 2200 2200 Primary Fan Speed 510 900 1305 1000 Hydraulic Flow GPM 13 22.5 34 25 Air Speed Air Flow CFM 3117 5360 8518 5570 Hydraulic Pressure Reading in Working 1500 PSI 2000 PSI 2900 PSI 2200 PSI Adjustable Condition Comments Performance Details 13. 13 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Performance Details Adjustment From Origional Primary and Secondry Fan Specifications Harvester #09 John Deere 3520 Date :20-12-12 Standard Blades Test 1ST Throttle 2nd Throttle 3rd Throttle Engine RPM 850 1500 2200 Primary Fan Speed 395 695 1050 Hydraulic Flow GPM Air Speed Air Flow CFM 1980 3560 5548 Hydraulic Pressure Reading in Working Adjustable Condition Comments Anti Vortex Blades Test 1ST Throttle 2nd Throttle 3rd Throttle Engine RPM 850 1500 2200 Primary Fan Speed 395 695 1050 Hydraulic Flow GPM Air Speed Air Flow CFM 2540 4190 6150 Hydraulic Pressure Reading in Working Adjustable Condition Comments 14. 14 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Performance Details Adjustment From Origional Primary and Secondry Fan Specifications Harvester #08 John Deere 3510 Date: 21-01-13 Standard Blades Test 1ST Throttle 2nd Throttle 3rd Throttle Engine RPM 850 1500 2200 Primary Fan Speed 360 650 978 Hydraulic Flow GPM Air Speed Air Flow CFM 1660 3268 4427 Hydraulic Pressure Reading in Working Adjustable Condition Comments Anti Vortex Blades Test 1ST Throttle 2nd Throttle 3rd Throttle Engine RPM 850 1500 2200 Primary Fan Speed 360 650 978 Hydraulic Flow GPM Air Speed Air Flow CFM 2448 3580 5972 Hydraulic Pressure Reading in Working Adjustable Condition Comments 15. 15 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Critical Key Points About Anti Vortex Fan Blades Critical Key Points About Anti Vortex Blades 1.Leading Edge Curve. 2.Trash Exiting Curve. 3.Exhausting Flare Curve. These three points create the unique design proven to save fuel and perform at lower revolutions per minute with matching cubic feet per minute. During fine tuning the fan blade critical criteria will be evaluated as: A. Blade and suction chamber leading edge clearance. B.CFM at set RPM. C. Free load PSI. D. Air Speed. 16. 16 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Critical Key Points About Anti Vortex Fan Blades Critical Key Points About JD 3500, 3510 & 3520 Blades 1.Blade and suction chamber wear ring clearance on inlet trash side and exiting value. 2.Long flat parallel leading edge. 17. 17 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Field Fine Tuning Blade and Suction Chamber Clearance and Performance. This study can only be physically checked under full working load conditions. With machine operating at the desired tones cane an hour of 60 TCH. 1. Using a hydraulic test gauge connected directly to the primary fan motor. 2. Run the hose beside the Primary Hood and review the performance and behavior of hydraulic spikes. This will provide detailed information's about drag and load factors. Using best judgment to choose a field of good constant standing cane as to not misinterpret readings. 3. At this stage we determine trash being caught between the blade tip and suction chamber wear ring. 18. 18 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Cane Loss Study Current Cane Loss studies are not being evaluated correctly and the procedures must be up dated. Criteria for this can be and will be obtained through the SRI. 19. 19 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Fuel Report Fuel Reports are essential to gather data and express gained advantages for efforts. Well known facts throughout the cane harvesting world and contractors alike a the fuel savings gained by using blades that meet current aero foil designs. 20. 20 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Further Fine Tuning Fine tuning the system will be the integral part of finishing the work started. This will include: Trimming blade tip curve. Clearance between the suction chamber wear ring. Templates to confirm any and all cuts to the blade. Final Reports as described. 21. 21 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Auditing Primary Fan Blades Blade Procedure Blades being purchased from market or made in work shops must adopt the following procedures to minimize complications faced in the field from un-matched blades and dimensions. Primary Fan Blade Manufacturing Requirements. 1. Work Shop representative supply all critical dimensions and requirements to the manufacturer. 2. Blade moulding or rolling must be suit flare specifications for each and every blade. 3. Blade dimensions must suite supplied specifications. 4. Blade weight_ each blade will be weighed and marked with white paint pen indicating weight in grams. 5. Blades will be supplied from the manufacture in sets of 2 blades wired together... these will be called 1 set. 6. In one set the two blades will be called blade (A) and blade (B). 7. Both A and B blades must have a weight that is within 5 grams of each other. 22. 22 Cameco 3500_3510 John Deere 3520 5Ft Primary Standard & Anti Vortex Fan Blades Auditing Primary Fan Blades Blade Procedure Blades being purchased from market or made in work shops must adopt the following procedures to minimize complications faced in the field from un-matched blades and dimensions. Primary Fan Blade Manufacturing Requirements. 8. Example # 1; A blade weighs 10.250 grams and B blade weighs 10,255 grams this will be OK. Example # 2; A blade weighs 10,250 grams and B blade weighs 10,260 grams this will be unmatched and there for not suiting critical fan balance requirements. 9. Blades that weigh within 5 grams can be paired and wired together supplying the customer with [SETS OF MATCHED WEIGHTED BLADES COMBINING 2 BLADES IN EACH SET]. 10. Fitters can then fit a set of blades apposing one another. 11. The supplied set of 2 blades will be fitted with one blade A in the south position and blade B in the north position. {Do not fit blades in this example Blade A in the south and blade B in the East or West. Audit of Supplied Blades Work shop staff will carry out random checks on each supply of blades from the manufacturer these random checks will conclude the following. 12. Carry out blade dimension checks with a supplied dimension template. 13. Check Blade F

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