EVALUATION REPORT 364
Contents
1. Cleaning Chaff and debris were cleaned from the grain using a combination of air and sieving action The tailings were returned to the front of the rotors The single variable speed paddle type fan supplied a suitable air blast for all crops encountered Changing the windboards from the factory set position did not improve cleaning The opposed action chaffer and cleaning sieves were easily adjusted to suit all crops encountered The shoe settings used for the various crops are included in TABLE 5 The cleaning shoe had very good capacity in all crops and losses were low over the entire operating range The grain sample was clean although in hard to thresh wheat some clean grain had to be returned with the tailings to get rid of white caps Dockage in the grain sample was mainly undersized kernels Straw spearing through the sieves did not occur The return had adequate capacity and did not plug It could not be easily checked while harvesting Clean Grain Handling The clean grain elevator had adequate capacity for all crops encountered The open grain tank Iled evenly and completely in all crops The tank held about 205 bushels 7 4 m of dry wheat The folding grain tank extension occasionally blew down If unnoticed grain would spill out as the tank lled It is recommended that the manufacturer consider modi cations to provide positive locking of the grain tank extension TABLE 5 Crop Settings Rotor Chaffer Sieve Chaf2. Volume 0 0364 Cubic Metres m Weight 0 0272 Tonnes t wheat 0 0218 Tonnes t barley 0 0227 Tonnes t rapeseed 0 0254 Tonnes t rye Prairie Agricultural Machinery Institute Head Of ce P O Box 1900 Humboldt Saskatchewan Canada SOK 2A0 Telephone 306 682 2555 3000 College Drive South Test Stations Lethbridge Alberta Canada T1K 1L6 P O Box 1060 P O Box 1150 Telephone 403 329 1212 Portage la Prairie Manitoba Canada R1N 3C5 Humboldt Saskatchewan Canada SOK 2A0 FAX 403 329 5562 Telephone 204 239 5445 Telephone 306 682 5033 http www agric gov ab ca navigation engineering Fax 204 239 7124 Fax 306 682 5080 afmrc index html This report is published under the authority of the minister of Agriculture for the Provinces of Alberta Saskatchewan and Manitoba and may not be reproduced in whole or in part without the prior approval of the Alberta Farm Machinery Research Centre or The Prairie Agricultural Machinery Institute SUMMARY CHART SPERRY NEW HOLLAND TR85 SELF PROPELLED COMBINE Retail Price 123 300 May 1984 f o b Humboldt Sask EVALUATION COMMENTS CAPACITY Compared to Reference Combine wheat 1 4 1 7 x reference barley 2 x reference MOG Feedrates wheat Columbus 596 Ib min 16 3 t h Neepawa 574 Ib min 15 7 t h barley Bonanza 457 Ib min 12 5 t h Bonanza 660 Ib min 18 0 t h under 290 total loss at power limit at 390 total
3. adjustable lip 1872 in 1 21 m with 1 5 in 39 mm throw adjustable lip 850 in 0 548 m wire rake adjustable lip 1872 in 1 21 m with 1 0 in 25 mm vertical throw chaffer extension curtain corn soybean chaffer sieve small seeds sieve sieve frame kit 6 blade undershot 22 in 560 mm 37 in 940 mm variable pitch belt 540 to 1055 rpm fan slow down kit fan shield kit roller chain with rubber ights 7 7 x 10 6 in 195 x 270 mm 5 1 x 10 6 in 130 x 270 mm corn soybean perforated auger and elevator covers 205 bu 7 5 m 198s 12 in 305 mm unloading auger exible downspout extension 2 steel hub with 3 rubber bats 260 rpm rear hood windrow attachment straw chopper Caterpillar 3208 4 stroke naturally aspirated 8 636 in 10 42 L 2730 rpm 175 hp 130 kW 2630 rpm 65 gal 295 L water jacket heater kit starting uid injector mechanical belt tightener mechanical dry friction disc mechanical belt tightener 7 18 5 NUMBER OF PRELUBRICATED BEARINGS 53 LUBRICATION POINTS 10h 50h 100h 500h TIRES front rear 31 27 20 4 28L x 26 R1 10 ply 11 x 16 F2 6 ply Page 11 TRACTION DRIVE type speed ranges 1st gear 2nd gear 3rd gear 4th gear options OVERALL DIMENSIONS wheel tread front wheel tread rear wheel base transport height transport length transport width eld height
4. options ENGINE make model type number of cylinders displacement governed speed full throttle manufacturer s rating fuel tank capacity options CLUTCHES header separator unloading auger NUMBER OF CHAIN DRIVES NUMBER OF BELT DRIVES NUMBER OF GEARBOXES APPENDIX I area open 907 in 0585 m SPECIFICATIONS wrap 180 grain delivery to shoe grain pan MAKE Sperry New Holland Self Propelled Combine THRESHING AND SEPARATING CHAMBER MODEL TR85 number of spirals 10 SERIAL NUMBER Header 444075 pitch of spirals 13 Body 401816 Engine 90N 61644 BACK BEATER MANUFACTURER Sperry New Holland type 4 wing box Division of Sperry Rand Corporation speed 825 rpm New Holland Pennsylvania 17557 BACK BEATER GRATE WINDROW PICKUP type bar and wire grate make Victory con guration 42 intervals with 0 24 in 6 mm diameter type rubber draper and transfer belts wires and 0 75 in 19 mm spaces pickup width 10 ft 3 0 m area total 628 in 0 405 m number of belts 7 area open 448 in 0 289 m teeth per belt 54 single teeth grain delivery to shoe gravity type of teeth nylon option beater grate covers number of rollers 2 pickup 2 transfer height control castor gauge wheels SHOE speed control electrically controlled variable pitch sheaves type opposed action speed range 227 to 368 ft min 1 2 to 1 9 m s speed 338 rpm
5. and easy to use Loss monitor performance was fair Only shoe loss was monitored and since shoe loss was usually very low it was of little use The reading was only meaningful if compared to actual losses observed at various loss levels Lighting for night time harvesting was good although the upper console did not have adequate lighting The warning ashers were not clearly visible from behind during the day Handling was good Although the steering was moderately stiff the combine steered well and was very maneuverable in the eld and on the road Ease of adjusting the combine components was good while ease of setting them to suit crop conditions was very good The return tailings were inconvenient to check Ease of unplugging was fair The rotors were dif cult to access The table auger was inconvenient to reverse Ease of cleaning was fair Dirt and chaff collected under the engine and on top of the rotor housing Chaff and dirt had to be cleaned regularly from behind the rasp bars Ease of lubrication was good The fuel inlet was high Most grease ttings were easily accessible Ease of performing most general maintenance and repair was good Engine and Fuel Consumption The engine started easily and ran well It had adequate power for easy to thresh crops but was underpowered for hard to thresh crops Its average fuel consumption for the season was about 6 7 gal h 30 4 L h Oil consumption was signi cant but not excessive Operat
6. 5 The rotors were aggressive and plugging was not a problem In all crops encountered the Sperry New Holland threshed completely Even in hard to thresh crops such as Neepawa wheat unthreshed losses were low and grain cracks minimal This aggressive threshing caused severe straw break up in dry conditions In tough conditions unthreshed loss was still acceptable although the maximum feedrate was greatly reduced due to increased power requirements s ral FIGURE 12 Concaves 1 Threshing 2 Extension Module 3 Separating Threshing at medium to high feedrates in most crops especially wheat caused severe rotor and concave vibration The noise was so irritating to the operator that often the full capacity of the combine was not utilized The vibrations increased as dust and dirt settled behind the rasp bars FIGURE 13 causing rotor imbalance It is recommended that the manufacturer consider modi cations to reduce threshing vibration and to prevent material build up behind the raspbars FIGURE 13 Material Build up Behind Rasp Bars Separating Grain was separated from the straw at the concaves by gravity and centrifugal force Separation was affected by rotor speed and concave clearance Very good separation was obtained in all crops at the setting which provided optimum threshing In all crops even barley a typically hard to separate crop rotor loss was low over the entire operating range and did not limit capacity
7. Bonanza Bonanza Neepawa Columbus Bonanza Bonanza Neepawa Neepawa Neepawa Neepawa Bonanza Klages Manitou Neepawa Neepawa Hector Hector Neepawa Neepawa Neepawa Neepawa Klages Neepawa Neepawa Fergus Side by Side Double Windrow 2Double Windrows Lapped by 1 3 MOG FEEDRATE t h 66 8 10 12 14 16 185 20 22 24 26 28 00 300 400 500 600 700 800 900 1000 MOG FEEDRATE lb min FIGURE 24 Total Grain Loss for the Reference Combine in Neepawa Wheat 0 2 10 FIGURE 25 shows capacity differences in six row Bonanza barley for 1981 1982 and 1983 two row Fergus barley for 1979 and two row Hector barley for 1980 The 1983 Bonanza barley crops shown in TABLE 7 had above average straw yield grain yield grain moisture and straw moisture Results show that the reference combine is important in determining the effect of crop variables and in comparing capacity results of combines evaluated in different growing seasons Capacity Results MOG G 6 2 7 2 1 6 2 6 263 368 337 313 10 0 9 2 8 5 8 5 9 3 11 6 MOG FEEDRATE th 10 12 14 16 18 20 22 24 1908 100 200 300 400 500 600 700 800 900 1000 MOG FEEDRATE b min FIGURE 25 Total Grain Loss for the Reference Combine in Bonanza Barley Page 13 APPENDIX III REGRESSION EQUATIONS FOR CAPACITY RESULTS Regression equations for the capacity results shown in FIGURES 2 to 5 are presented in TABLE 8 In the r
8. This was inconvenient A more convenient method of sampling the return while harvesting would have been bene cial It is recommended that the manufacturer consider supplying a safe more convenient apparatus for sampling the return tailings while harvesting Unplugging Unplugging the table auger which frequently plugged was inconvenient The header could be reversed by rotating the header drive shaft with a wrench It is recommended that the manufacturer consider modi cations to provide convenient header unplugging FIGURE 23 Return Sampler Unplugging the rotors was dif cult however they plugged only once during harvest To unplug the rotors the concave extension modules had to be removed the concave lowered and the rotors rocked with the slug wrench until the obstruction could be removed by hand Concave extension removal was time consuming and the slug wrench was heavy and dif cult to handle Material regularly collected behind the threshing rasp bars FIGURE 13 throwing the rotors out of balance The material often had to be cleaned out daily which required removing the concave extension modules and prying the material loose with a tool Page 9 Machine Cleaning Cleaning the Sperry New Holland TR85 for harvesting seed grain was time consuming but not too dif cult The grain tank was easy to clean if the cross auger gates were fully raised The sieves were easily removed The tailings and clean grain auger troughs had remova
9. distance of objects was distorted This was a problem especially during transport It is recommended that the manufacturer consider supplying additional rear view mirrors to improve depth perception View of the incoming windrow was partially blocked by the steering column FIGURE 17 The view was improved by leaning ahead and slightly to the right FIGURE 18 This however became uncomfortable after several hours of operating The grain level was visible through the rear window until the tank was about two thirds full As the tank became full the grain level could be seen in the rear view mirrors FIGURE 17 Normal View of Incoming Windrow Instruments The instruments were located to the right of the operator and above the windshield FIGURES 19 and 20 The lower console contained gauges for engine oil pressure coolant temperature battery charging and fuel level There was also a battery charge indicator light and an engine circuit breaker Feeder speed was indicated by a pointer on the feeder housing The upper console contained an engine hour meter a selective digital display for ground engine fan and rotor speeds and an optional grain loss monitor Warning lights and an audio alarm warned of air Iter Page 8 restriction low coolant level excessive coolant temperature low engine oil pressure full grain tank open stone trap parking brake engagement and a speed reduction of the major combine drives The digital r
10. eld length eld width unloader discharge height unloader clearance height unloader reach turning radius left right MASS EMPTY GRAIN TANK right front wheel left front wheel right rear wheel left rear wheel TOTAL Page 12 hydrostatic 0 1 8 mph 0 2 9 km h 0 4 1 mph 0 6 6 km h 0 7 6 mph 0 12 2 km h 0 16 5 mph 0 26 6 km h powered rear axle 2 or 4 in 50 or 102 mm wheel spacer kit drive axle extensions weight rack attachment suitcase weights 8 3 ft 2 5 m 7 5 ft 2 3 m 10 7 ft 3 3 m 12 9 ft 3 9 m 29 8 ff 9 1 m 13 6 ft 4 2 m 12 9 ff 3 9 m 28 3 ft 8 6 m 13 8 ff 4 2 m 12 7 ft 3 9 m 12 4 ft 3 8 m 9 5 ft 2 9 m 20 0 ft 6 1 m 20 7 ff 6 3 m 8245 Ib 3747 kg 9083 Ib 4129 kg 2436 Ib 1107 kg 2436 Ib 1107 kg 22200 Ib 10090 kg APPENDIX II MACHINERY INSTITUTE REFERENCE COMBINE CAPACITY RESULTS TABLE 7 and FIGURES 24 and 25 present the capacity results for the Machinery Institute reference combine in wheat and barley crops harvested from 1979 to 1983 FIGURE 24 shows capacity differences in Neepawa wheat for the ve years The 1983 Neepawa wheat crop shown in TABLE 7 had about average straw yield below average grain yield and below average grain and straw moisture content TABLE 7 Capacity of the Machinery Institute Reference Combine at a Total grain Loss of 3 Yield Crop Conditions Width of Cut Crop Yield 28 Variety
11. for prairie wheat crops may vary from 0 5 to 1 5 In a crop with a 0 5 MOG G ratio the combine has to handle 50 Ibs 22 7 kg of straw for every 100 Ibs 45 4 kg of grain harvested However in a crop with a 1 5 MOG G ratio for a similar 100 Ibs 45 4 kg of grain harvested the combine now has to handle 150 Ibs 68 2 kg of straw 3 times as much Therefore the higher the MOG G ratio the more dif cult it is to separate the grain Grain Loss Grain Damage and Dockage Grain loss from a combine can be of two main types Unthreshed Loss consisting of grain left in the head and discharged with the straw and chaff or Separator Loss which is free threshed grain discharged with the straw and chaff Separator Loss can be further de ned as shoe and walker or rotor loss depending where it came from Loss is expressed as a percentage of the total amount of grain being processed Damaged or cracked grain is also a form of grain loss In this report the cracked grain is determined by comparing the weight of actual damaged kernels to the entire weight of the sample taken from the grain tank Dockage is determined by standard Grain Commission methods It consists of large foreign particles and smaller particles that pass through a screen speci ed for that crop It is expressed as a percentage of the total sample taken Capacity Combine capacity is the maximum rate at which a combine adjusted for optimum performance can process crop material at a
12. loss at 1 2 total loss at 2 total loss straw very tough conditions stable QUALITY OF WORK Picking Good Feeding Good Stone Protection Good Threshing Very Good Separating Very Good Cleaning Very Good Grain Handling Fair Straw Spreading Good 3 to 6 mph 4 8 to 9 6 km h some feeder backfeeding limited feeding at max protection unthreshed loss low rotor loss low clean sample slow unloading high discharge height spread evenly 16 ft 4 9 m EASE OF OPERATION AND ADJUSTMENT Comfort Fair Instruments Good Controls Good Loss Monitor Fair Lighting Good Handling Good Adjustment Good Setting Very Good Unplugging Fair Cleaning Fair Lubrication Good Maintenance Good noisy cab covered all functions responsive meter inconvenient to observe warning lights dif cult to see in day stiff steering most adjustments in the cab little ne tuning required rotors and table inconvenient to unplug dif cult to clean chaff off rotor housing many 10 hr lubrication points easy to work on ENGINE AND FUEL CONSUMPTION Engine Good Fuel Consumption 6 7 gal h 30 4 L h started well underpowered average for entire test season OPERATOR SAFETY Good no major safety hazards OPERATOR MANUAL Good CAUTION several incorrect references This summary chart is not intended to present the na
13. of various crops The crops and conditions are shown in TABLES 1 and 2 During the harvest it was evaluated for rate of work quality of work ease of operation and adjustment operator safety and suitability of the operator manual Mechanical failures were recorded Page 3 TABLE 1 Operating lt i Crop Variety average Yield Yield Field Area mem aie ae Barley Bonanza 24 s ig 6 y 8 5 24 5 Barley Conquest 27 8 0 i Rapeseed i 98 40 Rapeseed 1 2 1 98 40 Rapeseed i i 20 i y 36 15 Rapeseed 28 Rye Frontier 14 n 20 Rye Puma 22 20 22 24 50 Columbus Neepawa TABLE 2 Operation in Stony Conditions Area ee Field Condition Stone Free Occasional Stones 763 309 Moderately Stony 291 117 RESULTS AND DISCUSSION TERMINOLOGY MOG MOG Feedrate Grain Feedrate and MOG G Ratio A combine s performance is affected by two main factors the amount of straw and chaff being processed and the amount of grain or seed being processed The straw chaff and plant material other than the grain or seed is called MOG which is an abbreviation for Material Other than Grain The quantity of MOG being processed per unit of time is called the MOG Feedrate Similarly the amount of grain being processed per unit of time is called the Grain Feedrate The MOG G ratio which is the MOG Feedrate divided by the Grain Feedrate indicates how dif cult a crop is to separate For example MOG G ratios
14. the entire season OPERATOR SAFETY The operator manual brie y emphasized operator safety The Sperry New Holland TR85 had warning decals to indicate most dangerous areas Moving parts were well shielded and most shields were hinged to allow easy access However the shields could not be locked open and often blew closed against the operator A header cylinder safety stop was provided The stop should be used when working near the header or when the combine is left unattended Unplugging the table auger header or rotor often required the operator to work in potentially dangerous areas It is imperative that all clutches be disengaged and the engine shut off before attempting to clear an obstruction The combine was equipped with a slow moving vehicle sign warning signal lights a tail light road lights and rear view mirrors to Page 10 aid in road transport The warning signal lights located on the front of the combine were dif cult to see from the rear when transporting during the day It is recommended that the manufacturer consider modi cations to improve the visibility of the warning signal lights from the rear A re extinguisher class ABC should be carried on the combine at all times OPERATOR MANUAL Most of the operator manual was clearly written and well illustrated It provided useful information on safe operation controls adjustments crop settings servicing troubleshooting and machine speci cations Instructions
15. 76 71 The seam on the optional unloading auger downspout came apartat 61 536 217 The threads on the stone ejection door trip adjustment stripped at 65 550 223 The hydraulic system did not work properly until 160 1350 546 gt The serrated feed assist extensions on the rotor intake fighting were completely worn at end of test season DISCUSSION OF MECHANICAL FAILURES Separator Clutch The separator clutch became hot when the rotors plugged The clutch may have been over lubricated since burnt grease was found on the clutch discs This burnt grease caused the clutch to seize The clutch discs were cleaned with solvent and sanded No further problems occurred Header Drive Belt The header drive belts were damaged when they were reinstalled To install or remove the belts had to be forced between the frame and the sheave on the feeder conveyor top shaft Clearance was inadequate for convenient installation and it is recommended that the manufacturer consider modi cations to improve ease of header drive belt removal and installation Header Wiring Harness The header wiring harness was loosely routed along the feeder housing and was damaged by the feeder conveyor drive chain Itis recommended that the manufacturer consider modi cations to protect the header wiring harness Hydraulic System When the steering wheel was turned to its stop the header would not lift nor would the unloading auger swing out The cause of the prob
16. Printed May 1984 Tested at Humboldt ISSN 0383 3445 Group 4c EVALUATION REPORT 364 SPERRY NEW HOLLAND TR85 SELF PROPELLED COMBINE SPERRY NEW HOLLAND TR85 SELF PROPELLED COMBINE MANUFACTURER DISTRIBUTORS Sperry New Holland Division of Sperry Rand Corporation New Holland Pennsylvania 17557 RETAIL PRICE 123 300 May 1984 f o b Humboldt with a 13 ft 4 0 m header 10 ft 3 0 m Victory pickup variable spewed feeder feeder jack stand high speed rotor kit straw spreaders 28L x 26 R1 drive tires 11 x 16 F2 steering tires grain loss monitor starting uid injector kit block heater radio cab heater windshield wiper and service oodlight Sperry New Holland P O Box 777 Winnipeg Manitoba R3C 2L4 Sperry New Holland P O Box 1907 Regina Saskatchewan S4N 2S3 Sperry New Holland P O Box 1616 Calgary Alberta T2P 2M7 FIGURE 1 Sperry New Holland TR85 1 Rotors 2 Threshing Concave 3 Separating Concave 4 Discharge Beater 5 Beater Grate 6 Cleaning Shoe 7 Stone Ejection Roller 8 Tailings Return SUMMARY AND CONCLUSIONS Capacity In the capacity tests the MOG Feedrate at 3 total grain loss was 450 and 650 Ib min 12 3 and 17 7 t h in Bonanza barley In wheat at power limit total loss reached only 1 2 of yield in Columbus and 2 0 in Neepawa The MOG Feedrates at these loss levels were 560 Ib min 15 3 t h in Neepawa and 590 Ib min 16 1 t h in Columbus I
17. ble panels to permit cleaning The outside of the combine had many ledges which collected chaff A large amount of straw and chaff that collected beneath the engine and on the rotor housings beneath the grain tank was dif cult to remove Lubrication The fuel tank inlet was located 9 2 ft 2 8 m above the ground making it dif cult to fuel from some gravity fuel tanks The combine had 48 pressure grease ttings Thirty one required greasing at 10 hours an additional twenty seven every 50 hours and twenty more at 100 hours Four other bearings required repacking every 500 hours or once a season Engine gearboxes and hydraulic oil levels required regular checking Daily lubrication was time consuming because of the number of lubrication points Most lubrication points were easily accessible except for two 10 hour grease nipples on the optional variable speed feeder drive Poor reference and instruction in the operator manual made nding some grease points and changing transmission oil confusing The fuel Iter was located on the front of the engine and was easily reached through a door in the grain tank If the grain tank was full the Iter could be reached from overtop the engine but this was very dif cult Changing engine and hydraulic oil and Iters was convenient Maintenance Routine maintenance was easy to perform The radiator had to be cleaned periodically The rotary screen swung out of the way to allow easy access to the front of the
18. ble spring loaded catch door manually reset upon tripping 2 closed tube 3 stage inlet thresh and separate 4 parallel rasp bars front section 2 separating bars rear section 12 in 305 mm 18 in 457 mm 16 9 in 430 mm 16 9 in 430 mm 15 0 in 380 mm 28 0 in 710 mm 41 3 in 1050 mm 84 3 in 2140 mm electrically controlled variable pitch belt through two 90 degree gearboxes 790 to 1790 rpm high speed rotor kit 2 2 bar and wire grate 13 each 5 each 10 intervals with 0 15 in 3 7 mm diameter wires and 0 28 in 7 0 mm spaces 4 intervals with 0 15 in 3 7 mm diameter wires and 0 28 in 7 0 mm spaces 835 in 0 535 m 360 in 0 232 m 230 in 0 148 m 144 in 0 091 m 7 P 2 2 87 degrees each side 125 degrees each side grain pan awning plates corn soybean concave extensions concave spacer kit hillside kit grain distribution kit 2 bar and wire grate 11 each 10 intervals with 0 28 in 7 mm diameter wires and 2 1 in 52 mm spaces 1166 in 0 751 m chaffer sieve chaffer sieve extension rake extension clean grain sieve options CLEANING FAN type diameter width drive speed range options ELEVATORS type clean grain bottom drive tailings bottom drive options GRAIN TANK capacity unloading time unloading auger diameter options STRAW SPREADER number of spreaders type speed
19. certain total loss level The Machinery Institute expresses capacity in terms of MOG Feedrate at 3 total loss Although MOG Feedrate is not as easily visualized as Grain Feedrate it provides a much more consistent basis for comparison A combine s ability to process MOG is relatively consistent even if MOG G ratios vary widely Three percent total loss is widely accepted in North America as an average loss rate that provides an optimum trade off between work accomplished and grain loss This may not be true for all combines nor does it mean that they cannot be compared at other loss levels Page 4 Reference Combine It is well recognized that a combine s Capacity may vary considerably due to crop and weather conditions APPENDIX II AND FIGURES 24 and 25 Since these conditions affect combine performance it is impossible to compare combines that are not tested under identical conditions For this reason the Machinery Institute uses a reference combine It is simply one combine that is tested each time that an evaluation combine is tested Since conditions are similar the combine can be compared directly to the reference combine and a relative capacity determined Combines tested in different years and conditions can then be compared indirectly using their relative capacities RATE OF WORK Capacity Test Results The capacity results for the Sperry New Holland TR85 at 3 loss are summarized in TABLE 3 The performance curves for the capac
20. city was good and grain loss over the shoe was low when properly adjusted the grain sample was clean in all crops encountered Grain handling was fair The 205 bushel 7 5m grain tank lled evenly and completely in all crops Unloading was slow taking about 198 seconds to unload a full tank of dry wheat Unloader discharge height was effectively reduced by the optional MOG Feedrate Material Other than Grain Feedrate is the mass of straw and chaff downspout passing through the combine per unit time Page 2 Straw spreading was good The straw spreaders spread the straw evenly over about 16 ft 4 9 m Ease of Operation and Adjustment Operator comfort in the Sperry New Holland TR85 was fair Operator comfort was reduced by the loud cab noise caused by rotor and concave vibration when harvesting The cab was relatively dust free The heater and air conditioner provided comfortable cab temperatures The seat and steering column could be adjusted to suit most operators The cab windows provided clear visibility forward and to the sides The view of the incoming windrow was partially blocked The rear view mirrors did not provide adequate depth perception Instrumentation was good They monitored most important functions and had built in warning systems They worked well and were helpful The digital display and loss monitor were inconvenient to view while harvesting Controls were good Most controls were conveniently located responsive
21. combine capacity 440 367 1 2 12 10 1 2 Comparing this combine to a second combine which has 2 times the capacity of the reference it can be seen that the second combine has 67 more capacity 2 1 2 1 2 x 100 67 Atest combine can also be compared to the reference combine at losses other than 3 The total loss curves of both machines are shown on the same graph in FIGURES 6 to 9 Shaded bands around the curves represent 95 con dence belts Where the bands overlap very little difference in capacity could be noticed where the bands do not overlap signi cant capacity differences existed MOG FEEDRATE th G 2 4 6 6 10 12 14 16 16 20 22 24 26 28 REFERENCE LOSS QO 100 200 3 300 O 400 S 500 O 600 7 700 8 800 0 S00 1c 1000 MOG FEEDRATE b min FIGURE 6 Total Grain Loss in Bonanza Barley A MOG FEEDRATE YF 0 2 4 6 10 12 14 16 18 20 22 24 26 28 REFSRENCE TR 85 o 700 200 300 400 500 600 700 BOO 900 1000 MOG FEEDRATE Ib min FIGURE 7 Total Grain Loss in Bonanza Barley B Capacity Compared to Reference Combine The capacity of the Sperry New Holland TR85 was much greater than that of the reference combine in both wheat and barley At 3 total loss the Sperry New Holland TR85 had about 2 times the capacity of the reference combine in barley In wheat the Sperry New Holland TR85 losses did not reach 3 Its maximum capacity in wheat was about 1 4 to 1 7 times the capacity of the referenc
22. di cations to improve the ease of header drive belt removal and installation 16 Modi cations to protect the header wiring harness Senior Engineer G E Frehlich Project Manager L G Hill Project Technologist R M Bartel THE MANUFACTURER STATES THAT With regard to recommendation number Future models will have a new rotor design which will greatly reduce vibration and material build up behind the rasp bars Changes to the locking device on the grain tank extensions are being considered Faster grain unloading is being evaluated for future models Different types and con gurations of mirrors are being evaluated and will be introduced on future models The digital display will be relocated on future models Improved console lighting will be incorporated on future models We will consider changing this We will consider changing this No changes are planned Afeeder and header reverser will be available in the very near future Changes will be made in this area on future models These instructions will be included in a revised manual They are presently included in the Service Manual These areas will be corrected in the revised manual Suggested settings will be revised in the new manual This area has been redesigned beginning with 1984 productions The wire harness has been rerouted beginning with the 1984 productions GENERAL DESCRIPTION The Sperry New Holland TR85 is a self propelled combine with t
23. e combine at 3 total loss FIGURES 6 to 9 compare the total loss curves of both combines Page 5 MOG FEEDRATE th 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 14 el 310 wo REFERENCE a 9 2 gt TR 85 0 oe ee eee 0 100 200 300 400 500 600 700 800 900 1000 MOG FEEDRATE lb min FIGURE 8 Total Grain Loss in Columbus Wheat C MOG FEEDRATE th 0 2 4 6 8 10 12 14 16 18 20 22 24 26 26 0 100 200 300 400 500 600 700 600 S00 1000 MOG FEEDRATE b min FIGURE 9 Total Grain Loss in Neepawa Wheat D QUALITY OF WORK Picking Windrows were picked using a 10 ft 3 0 m Victory windrow pickup Pickup height was adjusted so that the pickup teeth just scratched the ground The pickup speed was controlled from the cab and adjusted according to windrow conditions and forward speed The windguard was set to de ect the crop under the table auger without restricting crop ow It was removed for rapeseed crops Pickup performance was good in all crops encountered It had adequate picking ability to utilize the combine s capacity It picked cleanly in average crops at speeds between 3 and 6 mph 4 8 and 9 6 km h The variable speed drive on the combine would not allow adequate speed reduction to match pickup speed to ground speeds slower than 3 mph 4 8 km h At operating speeds greater than 6 mph 9 6 km h pickup loss increased signi cantly The transfer drapers and windguard provided smooth crop ow under the table au
24. eadout and warning systems were very useful but the digital display and combine loss monitor were inconvenient to observe while harvesting It is recommended that the manufacturer consider relocating the digital display for more convenient observation while harvesting FIGURE 18 View of Incoming Windrow When Leaning Forward and Right Electrical interference during citizen band radio transmission triggered the warning indicators but posed no serious problems Controls The controls for the Sperry New Holland TR85 FIGURES 19 to 22 were conveniently located and easy to operate FIGURE 20 Upper Right Console The foot operated pickup speed control was easy to adjust but responded slowly The fan and rotor speed adjustment also responded slowly The unloading auger swing control was stiff to turn and the auger swung slowly The hydrostatic ground speed and header height control levers were inconveniently located The levers were too far from each other to be operated simultaneously and they were positioned too far ahead of the armrest for comfortable operation FIGURE 21 Lower Left Console FIGURE 22 Foot Operated Controls Header lift was quick enough to suit all conditions while header drop rate was adjustable Loss Monitor Two grain loss sensor pads were located behind the chaffer Sensors were not provided for the rotors Rotor loss was usually low The loss monitor related grain loss to the area harvested The
25. eds up to its maximum 16 5 mph 27 km h Adjustment Pickup speed feeder speed rotor speed concave clearance and fan speed could be easily adjusted from within the cab while operating Table auger stone ejection roller windboard and sieve adjustments were located on the machine Auger nger timing auger clearance and auger stripper adjustment were easily made to suit crop conditions and once set seldom had to be readjusted The stone ejection roller height was inconvenient and awkward to adjust It is recommended that the manufacturer consider modi cations to improve the ease of adjusting the stone ejection roller The windboards were inconvenient to adjust however adjustment was not required Chaffer sieve and cleaning sieve adjustments were accessible through a door behind the cleaning sieve The chaffer extension adjustment was located under the thistle screen and was very dif cult to reach It is recommended that the manufacturer consider modi cations to improve the ease of adjusting the chaffer extension sieve The notches on the sieve adjustments were very helpful Field Setting The Sperry New Holland TR85 was very easy to set for all crops and conditions encountered Usually very little ne tuning was required after initial adjustments were made It was essential to remove the straw spreaders to check grain loss The return tailings FIGURE 23 could be examined only if the machine was quickly shut down under load
26. egressions U unthreshed loss in percent of yield S shoe loss in percent of yield R rotor loss in percent of yield F the MOG feedrate in Ib min while is the natural logarithm Sample size refers to the number of loss collections Limits of the regressions may be obtained from FIGURES 2 to 5 while crop conditions are presented in TABLE 3 TABLE 8 Regression Equations Crop Variety Figure Number Regression Equations Simple Correlation Coefficient Sample Size 0 11 2 44 x 10 F 0 89 k 1 43 1 24 x 10 F 2 48 x 10 F 0 92 7 0 17 2 77 x 10 F 0 93 es 0 15 1 0 x 10 F 0 94 Barley Bonanza 3 3 56 1 65 x 10 1 97 x 10 F 0 98 1 39 6 29 x 10 F 9 63 x 10 F 0 99 f Barley Bonanza 2 32 1 73 x 10 F 0 71 Wheat Columbus 0 99 3 85 x 10 F 4 35 x 10 F 0 74 2 74 3 62 x 10 F 0 86 0 02 9 79 x 107F 0 90 Wheat Neepawa 5 1 55 5 71 x 10 F 6 93 x 10 F 0 85 7 R 1 30 7 16 x 10 1 19 x 105F 0 92 Signi cant at P 0 05 2Signi cant at P 0 01 Machine Ratings CONVERSION TABLE The following rating scale is used in Machinery Institute Reports IMPERIAL UNITS MULTIPLY BY SI UNITS excellent fair Inches in 25 4 Millimetres mm very good poor Mile Hour mph 1 61 Kilometres Hour km h good unsatisfactory Pound Ib 0 454 Kilogram kg Gallons gal 4 54 Litres L Acres ac 0 405 Hectare ha Horsepower hp 0 746 Kilowatt kW APPENDIX V Bushels bu
27. eld MOG FEEDRATE t h 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 2o 8 eo O 6 ae I TOTAL ROTOR 2 i SHOE Fah ia ED 0 lt wa esemme 0 700 2 200 300 A 400 500 600 71 700 800 900 10 1000 MOG FEEDRATE Ib min FIGURE 5 Grain Loss in Neepawa Wheat D The crops for the 1983 tests suffered from extreme heat during the Iling stage In the barley crops this resulted in a lower bushel weight than normal In the wheat crops there was a decline in yield for the crop stand Also in most crops there was a large number of very small kernels which increased dockage In the barley crops tested FIGURES 2 and 3 at maximum feedrate losses were fairly low Although though both tests were done in the same eld capacity was lower in the rst tests because the straw was tough from a rain shower Therefore extra power was required and capacity was reduced For the two wheat crops FIGURES 4 and 5 conditions were stable and all losses were fairly low At maximum engine power losses did not reach 3 percent Capacity was slightly greater in Columbus wheat This may have been due to the wider windrow and the easier to thresh nature of Columbus It can be seen that for similar unthreshed loss the Neepawa wheat had higher grain cracks Average Workrates TABLE 4 indicates the average workrates obtained in each crop over the entire test season These values are considerably lower than the capacity test results in TABLE 3 T
28. f the feeder Stone Protection Stones and other hard objects were removed as they travelled up the feeder house and passed between the powered stone ejection roller and trap door FIGURE 10 FIGURE 10 Stone Protection 1 Stone Ejection Roller 2 Trip Door 3 Feeder Conveyor Chain 4 Feeder House In stony conditions the powered stone roller was adjusted to provide maximum stone protection In stone free conditions it was raised to provide unrestricted feeding Most stones and hard objects were ejected As a result there was negligible rotor and concave damage When operating with the stone roller adjusted in the lowest position even a slight bunch in the crop often caused the door to be kicked open The door had to be manually reset from outside the cab Threshing Threshing was accomplished by the twin counter rotating rotors adjustable threshing concaves extension modules and separating concaves FIGURES 11 and 12 The rotors were powered through two gearboxes and a torque sensing variable speed belt drive The drive was positive and provided a suitable speed range for all crops encountered The concave had adequate adjustment Suitable threshing in grain crops was obtained when using fast rotor speed and minimum concave clearance In rapeseed much slower rotor speed and wider concave clearance were used to prevent over threshing The rotor speeds and concave settings used for the various crops are given in TABLE
29. fer Exit Cleaning Fan Speed Concave Setting Setting Sieve Setting Speed Setting cop om rosin n mm om n om om Barley 1400 1600 3 5 Y A 13 19 13 22 Y 6 13 700 850 Bartey ranoagoo 3 5 fen 13 19 wx 13 22 ws 6 13 roosa fine Pasar a fa Pe few ore The unloading auger had ample reach and clearance for unloading into trucks and grain trailers The unloading auger discharged grain in a compact stream and could empty a tank of dry wheat in about 198 seconds This was slow Opening the control gates to increase the unloading rate often caused the unloading auger belt to slip Increasing belt tension beyond recommended settings helped It is recommended that the manufacturer consider modi cations to provide faster grain unloading Although the auger delivered a compact stream of grain the discharge height made unloading on the go inconvenient and caused grain loss in windy conditions FIGURE 14 The optional downspout was effective in reducing loss in windy conditions FIGURE 15 but was poorly constructed and lasted only 61 hours Swinging the unloading auger back reduced the discharge height but also reduced clearance and reach ae o IF g I LADO LIT FIGURE 14 Unloading With Standard Spout FIGURE 15 Unloading With Optional Spout Straw Spreading The Sperry New Holland TR85 was tested with straw spreaders The rotors usually broke the straw into small lengths maki
30. for feeder house removal were not provided It is recommended that the manufacturer consider including feeder house removal instructions in the operator manual The lubrication section of the manual was dif cult to follow and made several incorrect references to photos It is recommended that the manufacturer consider revising the operator manual to clearly identify all lubrication points and to correct referencing errors The suggested chaffer and sieve settings for wheat appear to be interchanged It is recommended that the manufacturer consider correcting the suggested chaffer sieve and cleaning sieve settings for wheat DURABILITY RESULTS MECHANICAL HISTORY TABLE 6 outlines the mechanical history of the Sperry New Holland TR85 during the 176 hours of eld operation while harvesting about 1540 ac 623 ha The intent of the test was functional performance evaluation Extended durability testing was not conducted TABLE 6 Mechanical History Field Area Operating Item Hours ac ha Drives The hydrostatic charge line burst at 66 564 228 The separator clutch seized at 69 623 252 The header drive belts were damaged when installing at end of test season Electrical e header wiring harness was damaged by the feeder conveyor drive hain at 20 178 71 a4 The stone trap door warning malfunctioned intermittently during the test season iscellaneous bolt sheared off the air conditioner compressor mounting bracket at 20 1
31. ger Even without the windguard in rapeseed feeding was acceptable Feeding The table auger fed the windrows to the slatted conveyor chain which carried the crop to the rotors The table auger clearance crop stripper auger nger timing and slip clutch tension were adjusted according to the operator manual The feeder chain speed was adjustable from within the cab Feeding was good for most crops Feeding was smooth and consistent in wheat barley and uniform rapeseed windrows However the table auger frequently plugged in long rye straw and bunchy rapeseed windrows In the long rye straw plugging was usually due to crop backfeeding over the feeder conveyor Operating the feeder conveyor at maximum speed helped reduce backfeeding Increasing auger slip clutch tension would have made the table auger more aggressive but would have increased the possibility of plugging the rotors Feeding was slightly restricted with the stone roller set in the lowest position Windrow condition and operating were critical to feeding both rotors equally The most uniform feeding occurred in double side by side windrows and wide loosely formed windrows Narrow densely formed windrows were hard to divide and tended to feed one rotor Page 6 more than the other To aid in even feeding parallel windrows should be fed to the centre of the feeder opening In angled windrows the windrow should be fed slightly off centre so that the heads are in the centre o
32. his is because the results in TABLE 3 represent instantaneous rates while average workrates take into account operation at lower loss levels variable crop and eld conditions availability of grain handling equipment and differences in operating habits Most operators could expect to obtain average rates within this range while some daily rates may approach the capacity test values TABLE 4 Average Workrates Average Yield Average Speed Average Workrates Barley Bonanza Barley Conquest Rapeseed J Andor Rapeseed f Regent Rapeseed f Tobin Rapeseed f Tower Rye Frontier Rye Puma Wheat Columbus Wheat Neepawa 1 0 to 35 16 to 5 6 The average workrates should not be used to compare combines The factors which affect workrates are too variable and cannot be duplicated for all combine tests Comparing Combine Capacities The capacity of combines tested in different years or in different crop conditions can only be compared using the Machinery Institute reference combine This is done by dividing the test combine capacity MOG Feedrate at 3 loss as shown in TABLE 3 by the corresponding capacity for the reference combine found in TABLE 7 The resulting number capacity ratio can be used to compare capacities of combines in different years For example if a test combine has a capacity of 440 Ib min 12 t h MOG and the reference a capacity of 367 Ib min 10 t h MOG the test combine capacity is 1 2 times the reference
33. ity tests are presented in FIGURES 2 to 5 The curves in each gure indicate the effect of increased feedrate on rotor loss shoe loss unthreshed loss and total loss From the graphs combine capacity can also be determined for loss levels other than 3 These results were obtained with the combine set for optimum performance at a reasonable feedrate MOG FEEDRATE t h QO 2 4 6 8 10 12 14 16 18 20 22 24 26 28 TOTAL 4 2 ROTOR ES SF UNTHRESHED 0 100 200 300 400 500 600 71 700 6 800 0 900 10 1000 MOG FEEDRATE Ib min FIGURE 2 Grain Loss in Bonanza Barley A LOSS aa gaa lt lt lt MOG FEEDRATE th 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 12 10 Loss 6 6 roa M i I al al I 4 Eo ai ROTOR UNTHRE SJELA o 100 200 300 400 500 600 7U0 800 S00 1000 MOG FEEDRATE lIb min FIGURE 3 Grain Loss in Bonanza Barley B MOG FEEDRATE t h 0 2 4 6 amp 10 12 14 16 18 20 22 24 26 28 a zdl g al S cy l 2 TOTES ROE al Ss be AM a ae ee oe ee ee a MOG FEEDRATE Ib min FIGURE 4 Grain Loss in Columbus Wheat C TABLE 3 Capacity of the Sperry New Holland TR85 at a Total Loss of 3 of Yield Crop Conditions Width of Cut Crop Yield Moisture Content MOG Feedrate Grain Feedrate Grain ae a Barley A Bonanza Barley B Bonanza Wheat C Columbus Wheat D Neepawa In wheat crops capacity was limited by engine power at total losses less than 3 of yi
34. l conclusions of the evaluation reports The relevance of the ratings is secondary to the information provided in the full text of the report It is not recommended that a purchase decision be based only on the summary chart Prairie Agricultural Machinery Institute Head Of ce P O Box 1900 Humboldt Saskatchewan Canada SOK 2A0 Telephone 306 682 2555 Test Stations P O Box 1060 Portage la Prairie Manitoba Canada R1N 3C5 Telephone 204 239 5445 Fax 204 239 7124 3000 College Drive South Lethbridge Alberta Canada T1K 1L6 Telephone 403 329 1212 FAX 403 329 5562 http www agric gov ab ca navigation engineering afmrc index html This report is published under the authority of the minister of Agriculture for the Provinces of Alberta Saskatchewan and Manitoba and may not be reproduced in whole or in part without the prior approval of the Alberta Farm Machinery Research Centre or The Prairie Agricultural Machinery Institute P O Box 1150 Humboldt Saskatchewan Canada SOK 2A0 Telephone 306 682 5033 Fax 306 682 5080
35. lem was not determined however near the end of the test the hydraulics began to operate normally HEADER type width auger diameter feed conveyor conveyor speed range picking height number of lift cylinders raising time lowering time options STONE PROTECTION type ejection ROTOR number of rotors type diameter tube feeding portion threshing portion separating portion length feeding portion threshing portion separating portion total drive speeds options CONCAVE THRESHING number concaves concave extensions type number of bars concave concave extension con guration concave concave extensions area concave total concave open concave extensions total concave extensions open wrap concave concave plus extensions grain delivery to shoe options CONCAVES SEPARATING number type number of bars con guration area total centre feed 12 5 ft 3810 mm 23 9 in 607 mm 3 roller chains undershot slatted conveyors 630 to 800 ft min 3 2 to 4 1 m s 21 in to 50 in 533 mm to 1270 mm 2 5 28 adjustable variable speed feeder straight cut header exible cutter bar sun ower cutter bar maize header replaceable feeder bottom automatic header height control feeder jack stand stone roller in feeder housing door with adjusta
36. monitor detected changes in mechanical shoe loss but was ineffective in detecting airborne loss The monitor reading was meaningful if compared to actual losses observed behind the combine Lighting The combine was equipped with six eld lights a grain tank light an unloading auger light a rear light that could be switched to red for night travel and two warning signal lights Lighting was good for night time harvesting and transporting Lower console lighting was adequate but upper console lighting was poor The controls and warning light identi cation could not be seen unless the interior light was on It is recommended that the manufacturer consider improving upper console lighting The warning signal lights located on each side of the cab were dif cult to see from the rear during the day Handling The Sperry New Holland TR85 was quite maneuverable The steering was responsive but stiff The stiff steering combined with the steering wheel s hard rough covering made steering tiring and uncomfortable The wheel brakes were positive and aided turning but were not needed for picking around most windrow corners The transmission was easy to shift The hydrostatic drive was responsive and made changing speed and reversing quick and easy The combine was very stable in the eld even with a full grain tank Normal caution was needed when operating on hillsides and when travelling at transport speeds The combine transported well at spe
37. n barley crops at 3 total grain loss the Sperry New Holland TR85 had approximately 2 times the capacity of the Machinery Institute reference combine In wheat the maximum feedrates achieved by the Sperry New Holland TR85 at less than 2 total grain loss were about 1 4 to 1 7 times those of the reference combine at 3 total grain loss Quality of Work Pickup performance was good in all crops It picked cleanly at speeds up to 6 mph 9 6 km h and fed the crop evenly under the table auger Feeding was good for most crops however the table auger plugged frequently in bunchy windrows The feeder backfed occasionally in rye crops especially at the lower feeder speeds Optimum rotor feeding occurred in double side by side windrows and wide loosely formed windrows The powered stone roller and trap door provided good protection from stones roots and large wads Threshing was very good The Sperry New Holland TR85 threshed very aggressively and completely in all crops and had less grain damage than the reference combine Straw break up was much greater than for the reference combine in tough conditions the maximum feedrate was greatly reduced due to increased power requirements The rotors and concaves vibrated severely at medium to high feedrates The Sperry New Holland TR85 had very good separation in all crops Rotor loss was low over the entire operating range and did not limit capacity Cleaning shoe performance was very good Capa
38. ng further chopping unnecessary the spreaders spread the straw and some of the chaff from the shoe evenly over about 16 ft 4 9 m The spread pattern was affected considerably by wind Some straw and chaff thrown forward onto the rear axle FIGURE 16 by the spreaders may have been drawn into the cleaning fan Flexible shielding was added by the Machinery Institute to prevent this The spreaders were easily removed to permit windrowing however the straw was less suitable for baling than straw from conventional combines Page 7 TO FIGURE 16 Straw Spreader Throwing Material Forward EASE OF OPERATION AND ADJUSTMENT Operator Comfort The Sperry New Holland TR85 was equipped with an operator s cab positioned ahead of the grain tank and centered on the combine body The cab was easily accessible Operator station sound level at full speed with no load was about 87 dBA At medium to high feedrates low frequency vibrations from the rotor and concaves became very loud and annoying making operating very uncomfortable Incoming air was effectively Itered while the fans pressurized the cab to reduce the dust leaks The heater and air conditioner provided comfortable cab temperatures The seat and steering column were adjustable providing a comfortable combination for most operators Forward and side visibility were very good Rear visibility was restricted Two convex rear view mirrors provided fair rear visibility however the actual
39. or Safety Operator safety was good The Sperry New Holland TR85 was safe to operate if normal safety precautions were taken and warnings heeded Operator Manual The operator manual was good It provided much useful information but had several incorrect references Mechanical History A few mechanical problems occurred during the test RECOMMENDATIONS It is recommended that the manufacturer consider Modi cations to reduce threshing vibration and prevent material build up behind the rasp bars Modi cations to provide positive locking of the grain tank extensions Modi cations to provide faster grain unloading Supplying additional rear view mirrors to improve depth perception Relocating the digital display for more convenient observation while harvesting Improving upper console lighting Modi cations to improve the ease of adjusting the stone ejection roller Modi cations to improve the ease of adjusting the chaffer extension sieve Supplying a safe more convenient apparatus for sampling the return tailings while harvesting Modi cations to provide convenient header unplugging Modi cations to improve visibility of the warning signal lights from the rear Including feeder house removal instructions in the operator manual 13 Revising the operator manual to clearly identify all lubrication points and to correct referencing errors 14 Correcting the suggested chaffer sieve and cleaning sieve settings for wheat 15 Mo
40. radiator but access from the engine side was limited The engine air intake centrifugal dust bowl and outer dry element Iter had to be cleaned regularly They were easily accessible Regular chain and belt tensioning was easy Jaw clutches protected the feeder conveyor clean grain and tailings return drives The table auger used a friction clutch All could be easily adjusted The complete header and feeder house assembly was easily removed and installed except for the header drive belts which were dif cult to get past the spring loaded idler pulley The optional header jack stand was very useful The rotors were not too dif cult to remove and could be manually handled When installing the rotors it was necessary to time them Shimming the H frame to center the concaves with the rotors was time consuming and dif cult The concave support linkages were easily adjusted to set the initial clearances A special gauge had to be fabricated to check the leading edge clearance Installing cover plates on the beater grate was inconvenient ENGINE AND FUEL CONSUMPTION The Caterpillar 3208 diesel engine started easily and ran well It had adequate power for easy to thresh crops but was under powered in hard to thresh crops such as wheat Average fuel consumption based on separator hours was about 6 7 gal h 30 4 L h Average oil consumption was approximately 0 25 gal 1 1 L for each 12 hours of harvesting Oil pressure was low for
41. wo longitudinally mounted rotors threshing and separating concaves discharge beater and a cleaning shoe Threshing occurs mainly at the front section of the rotors while separation of grain from straw occurs throughout the full length of the threshing and separating concaves and at the rear beater grate The grain is cleaned at the shoe and the return tailings delivered to the front of the rotors A stone ejection roller is mounted within the feeder housing The test machine was equipped with a 175 hp 131 kW eight cylinder naturally aspirated diesel engine a 13 ft 4 0 m header a 10 ft 3 0 m Victory pickup a straw spreader and other optional equipment listed on page 2 The Sperry New Holland TR85 has a pressurized operator cab power steering hydraulic wheel brakes and a hydrostatic traction drive The separator header and unloading auger drives are manually engaged Header height and unloading auger swing are hydraulically controlled Rotor pickup cleaning fan and feeder speeds and concave clearance are adjusted from within the cab Cleaning shoe settings are adjusted on the machine There is no provision to safely and conveniently inspect the return tailings while operating Important component speeds and machine and harvest functions are displayed on electronic monitors Detailed speci cations are given in APPENDIX I SCOPE OF TEST The Sperry New Holland TR85 was operated for 176 hours while harvesting about 1540 ac 623 ha
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