Axial-Flow Combine Timeline

1977     Introduction of first 300 Axial-Flow Combines1440 135 H.P. 436 CuIn. 145 Bu. Grain Tank1460 170 H.P. 436 Cu.In. 180 Bu. Grain Tank 1978     Introduction of 1480 Axial-Flow Combine1480 190 H.P. 436 Cu. In. 208 Bu. Grain Tank820 flex head introduced - 13' to 22.5' 1979     Engine updated to "B" seriesWater separator filter changed from cannister filter to spin-on filterOne-piece hydro pump drive pulley changed to two-piece pulley with replaceable hub 1980     Keystock grates introducedElectric fan speed adjustment27/28 gears now used on 1440 grain & corn combinesOscillating guide axle shield standard on rice & corn machinesFriction disc slip clutch replaces ratchet clutchNew rotor with new cone rear bulkhead 1981     Introduction of 1420 Axial-Flow Combine1420 112 H.P. 358 Cu.In. 125 Bu. Grain TankIntroduction of Electro-hydraulics1480 engine and H.P. change1480 210 H.P. 466 Cu.In. 208 Bu. Grain TankPTO clutch changed from 7 plates to 9 plates (1480)Straw chopper both factory and field codes (April 1981)Two Speed Hydrostatic Drive Motor 1480Power guide wheel drives for all models as factory installed option (January 1981)Grain Loss Monitor as field attachment onlyIntroduction of 900 Series Corn Heads 1982     1420 H.P. change1420 124 H.P. 358 Cu.In. 125 Bu. Grain TankElectric fan speed adjustment offered on 1420Power-guide rear axle availabe on 1420Brake disc diameter changed from 7" to 8" on 1460/1480Additional brake disc (2 disc to 3 disc) on 1420/1440Hydraulic control valve improvementsAutomatic feeder cutoff availableAuto reel-to-ground speed attachment availableFishburn lock added to 1460/1480 transmissionClean grain auger shaft increased to 1-1/4" on 1440/1460/1480Rocktrap introduced on 1440/1460/1480 1983     New elevator jackshaft on 1440/1460/1480Cessna header lift pump replaced Webster4-blade discharge beater changed to 3-blade beater Final drive shafts changed from 3-bolt to 1-bolt design on 1480Inline pressure filter between hydraulic pump and header valveBosch injection pump replaced rotary type on 1480 1984     Introduction of Specialty RotorDanfoss steering hand pumps replace TRW pumpsCone changed from low carbon steel to medium carbon steel (1040)Grain gears now standard on all corn combines2-speed hydro available on 1460Improved steering axle: new rims, spindles, and hubsRear-wheel assist revised 1985     Mufflers eliminated on 1460/1480One-piece forged final drive axle assemblyFeeder bottom, door, and hinge changed to 1040 steelRocktrap beater changed from 4-blade design to 3-blade, keystock welded on LH end, and beater blades thickerRotor kickers standard3rd lift cylinder available on 1440 1986     Introduction of 1600 Series Axial-Flow Combines1620 124 H.P. 358 Cu.In. 125 Bu. Grain Tank1640 150 H.P. 466 Cu.In. 145 Bu. Grain Tank1660 180 H.P. 466 Cu.In. 180 Bu. Grain Tank1680 225 H.P. 466 Cu.In. 210 Bu. Grain TankCapacity increases of 70% on 1640 and 1660 and 25% on 1680 Increased concave area by 15.5% on 1640 and 1660 and 16% on 1680 Increased separating area by 24% on 1620, 32% on 1640 and 1660, and 41% on 1680 Cage vanes adjustable without removing bolts or concaves and grates Clean grain augers increased in diameter (7" on 1640 and 1660 and 8" on 1680) Deeper clean grain elevator cross section (11.1 x 6" on 1640 and 1660 and 11.1 x 8" on 1680)Tear drop clean grain elevator lower bootTapered entry design into clean grain elevator bootInclined delivery auger standard on all 1680’s and 1660 rice models Shaft speed monitor standard (monitors 9 areas, two more, feeder and spreader) Improved lighting package (6-60 watt halogen lights including one long distance light)Optional feeder reverser all 1600 (field kits for certain 1400 series)Introduction of 1020 Flexible Cutterbar Header1.5" knife system standard on 1020 Flx. Optional on 1010Cross auger lifts with reel lift for reversing 1987     Direction of rotation for rotary air screen reversedShaft speed monitor made standardFinal drive axle changed to one-piece forged shaft 1988     Model number decals were moved up to the front of the combine beside the grain tankRotor drive pulley improvedSlotted bolt holes in concave hanger brackets on RH side 1989     Introduction of New CDC Engines (4/1/89)1620 145 H.P. 5.9 Liter 125 Bu. Grain Tank1640 160 H.P. 5.9 Liter 145 Bu. Grain Tank1660 190 H.P. 8.3 Liter 180 Bu. Grain Tank1680 235 H.P. 8.3 Liter 210 Bu. Grain TankIn-line core radiators replace staggered tupe design110 amp Bosh alternator replaced 90 amp Motorola with engine deflector shieldsBattery sizes upgradedCoolant level sensor addedEngine aspirator for Navistar engine combines 1990     Audible alarm added to grain-tank full indicatorRight side service access door added on 1640/1660Heavy-duty cleaning system drive parts: sieve hangers, hanger arms, pitmans, & shaftsCab heater valve replaced by valve from 7100 Magnum tractors1991 High visibility reel released for 1020 Flex and 1010 headersLong cleaning system released for 1680-grain combinesDual spin-on hydraulic filters on 1680Electric fuel transfer pump on 1680 1992     Introduction of Field Tracker92-120" rear axle standardFuel line diameter increased to ½" and screen eliminated from tankHydraulic reservoir increased from 5 gallons to 8 gallonsNew lay-over header lift valveAccumulator standardAuxiliary and reel drive pumps combined into one dual pumpDual spin-on hydraulic filters on 1640/1660 (same as 1680)2-piece hydrostatic steel lines replaced by a center steel tube with outer rubber hoses with 4-bolt split flange connectorsRotor coupling bolts changed from grade 5 to grade 81620 combine discontinued 1993     Introduction of Second Generation 1600 Series Axial-Flow Combines1644 180 H.P. 5.9 Liter 145 Bu. Grain Tank1666 215 H.P. 8.3 Liter 180 Bu. Grain Tank1688 260 H.P. 8.3 Liter 210 Bu. Grain TankIntroduction of Cross-Flow Cleaning FanLong cleaning system (13.75" added to chaffer and shoe sieve) 25.9% 44/66 and 23.7% on 88Larger air cleaners on 1666/1688Water-pump sealed stalk roll bearings on 1000 series cornheads 1994     Introduction of Straw/Chaff spreader system (factory and field codes for long sieve units)1644 gets 1666/1688 transmision, final drive, and brakes Optional cold-start package (ether assist and block heater)Electric fuel pump added on 1644/1666Radial-seal type engine air filtersTransition cone & rotor cage seam bolts heads treated with tungsten-carbideUnloading auger spill saver added 1995     Introduction of 2100 Series Axial-Flow Combine2144 180 H.P. 5.9 Liter 145 Bu. Grain Tank2166 215 H.P. 8.3 Liter 180 Bu. Grain Tank2188 260 H.P. 8.3 Liter 210 Bu. Grain TankAll new cab and styling (23% more total glass area than 1600 series)Improved stadium-design lightingNew optional lighting package (after cut, side flood, rear work, and service lights)Theater style lay-out to right-hand consoleMult-function propulsion leverNew A-post instrumentation centerImproved operator ladderFocalized cab mounting systemNew pressure and flow-compensated (PFC) hydraulics and wet brakes New safety shielding, service platforms, hand rails, and guards Improved hinged service panels for easier access AFS field installed AFS systems released (March) 1996     Factory installed AFS systems released (March) 1997     New 13 bolt final drive mounting (previous 7 bolt mount)Poly skid shoes factory optionNew larger cab air filter on right side of cabFold-in rear windowSplined feeder jackshaft replaces keyed shaft    Transmission charged from a 3-bolt to a 5-bolt retention pattern on the differential bearing carrier.Locking collar on final drive shaft couplers replaces boltRear axle center section tubing increased from 5/16" to 3/8"Drive plate added to rotor drive couplerMain hydrostatic tubes replaced with hosesSeals added to front rotor coverDetents added to LH shieldsOne-piece cleaning fan hinge rodFloating hex shaft between front and rear unloading augersUnloading auger outer elbow housing rivets changed from ¼" to 5/16" 1998     Introduction of 2300 Series Axial-Flow Combines2344 174 H.P. 5.9 Liter 145 Bu. Grain Tank2366 240 H.P. 8.3 Liter 180 Bu. Grain Tank2388 280 H.P. 8.3 Liter 210 Bu. Grain TankTailings volume monitor standardDeluxe cab standardAuto temperature control standardEngine air filter restriction indicator added to A-post display Engine air intake manifold temperature indicator and feeder shut-off (2388) Hydraulically driven rotary air screen (2388) (27% larger area)68x50 - 32h high flotation tire option (1730 Sq. In. contact area) (38% less ground P.S.I.)600/65-R28 high flotation tire option (710 Sq. In. contact area) (19% less ground P.S.I.)Rotor skin increased thickness and strength (3 times more resistant to denting)Three speed rotor gearbox (2388) w/ adjuster lever on left side of cabNew rotor drive belt (27% increased contact area with pulleys) (21% increased service life)Torque sensing cam angle increased to 39 degreeCharge air cooling with air-to-air aftercooling (2388)New engine air filter design (38% Larger filter area) (Lower profile)Radiator spinner blade standard 1999     Introduction of AFS Universal DisplaysOptional extended wear packageGrooved torque sensing pulleys standardReverse rotation on left side auger in auger bedOptional edible bean packageLadder reworked with flexible bottom stepImproved sealing on feeder position potentiometersDraper headers released (limited production)Poly snouts standard on 1000 series narrow corn heads 2000     Elevator-mount moisture sensor on AFS combinesNew HVAC system with digital display (like MX Magnum)Air intake is not drawn from engine radiator air chute instead of rotary air screenGreasable hydrostatic drive hub2388 rear axle standard on 2344/66 combines2388 rotor cage constructed of AR235 wear-resistant steelCast shaker pivot support channelsPrecision-drilled holes in elevator slip clutch drive hubStalk roll bearing shield on 1000 series cornheads 2001     Hydraulic feeder reverser4-groove kevlar cord feeder drive belt3rd bearing on rocktrapRochelle rotor availableExternal straw chopper adjustment and taller "coined" bladesPredrilled for external sieve adjustersSieve viewing door and light12-row ready package for 2388 (4WD)122% larger toolbox180 gallon fuel tank replaces 123 gallon on 2388LH shields can be opened without lifting up side sheets16-weight bracket availableHillco leveling available from the factory2200 series cornheads introduced 2002     Steel pin replaces cotter pin in upper feeder shaft1-piece concavesExternal sieve adjusters available as factory optionPush-button chaff spreader couplerCurved chaff spreader bats factory option2-speed straw spreader pulleyGrain drain filler plates standard in grain tankClean grain auger inlet cone standard on 2388 – 15% more clean grain elevator capacity Belt-engage separator drive on 2388 replaces wet PTO clutch (with 5-rib separator drive belt)130 gallon fuel tank on 2344/6614.9-24 8PR R1 rear tires and heavy-duty rims standard on 2344/6612-row ready package available for 2WD combinesHinged right rear side panel with gas strutGrease banks for steering axle, unloading auger elbow, and front rotor bearingRotor gearbox speed adjusting lever moved to RH side of cabFeeder predrilled for Black Ace silencer kit    New design auger fingers on 1020 grain heads (spring pin, broken fingers are collected in auger)Mechanical linkage AHHC replaces cable on 1020 grain heads 2003    2344 combine discontinuedNew AFX rotor on 2388: 5-25% more throughput Larger rotor drive pulleys, 900-lb. Rotor drive spring, longer seamless rotor beltWire cloth mesh hydraulic drive rotary air screen, relocated to RH side of combine,direct-flow design, with swing-open door Square wave technology on radiator and charge air cooler to prevent "deep-core" plugging2366 now air-to-air aftercooled, 250HP Muffler standard New Air cleaner design New operator’s seat with adjustable LH armrest and removable seat cushionsHeavy-duty 2WD rear axle with dual-steering cylinders optional on 2388 2004    208” extended-wear unloading auger made standard on 2388All 2388’s have extended wear auger bed augers, clean grain auger, grain tank bottom and vertical augers,HVOF diver’s helmet, and HVOF front rotor channelThe feeder on the 2388 is now 3rd cylinder readyCoined feeder slats standardComposite frame stainless steel wire mesh (0.024” hole size) rotary air screen standard, along with larger, external dirt chute, and one-piece bulb type door sealTorque sensing unit cam angle changed to 54 degrees on 2388Stainless steel vanes in rotor cage standard on 2388 2005    Production moved from East Moline, IL to Grand Island, NE2366 replaced by 2377 2006 Tier lll electronic 8.3L engines: 285 HP rated/325 HP maximum on 2388, 255 HP rated/290 HP maximum on 2377Enhanced engine monitoring with automatic shutdown20% larger radiatorHeavy-duty 3-speed rotor gearbox and inverted rotor beltCurved spreader bats standardUnloading auger tube reinforcedRotating beacons optionalSight glass for hydraulic reservoirFull-fingered auger optional from the factory on 1020 grain head