Powershift Transmission Operation | Buhler 2335, 2425, 2290, 2375

SECTION 2 - OPERATION

POWERSHIFT TRANSMISSION OPERATION

The powershift transmission gears are constantly in mesh. Gear shifting is done by the use of eight clutches in the transmission.

There are twelve forward speeds and two reverse speeds.

Clutch selection is controlled by electric solenoid valves which direct hydraulic oil to the required clutches. When the operator selects a gear, an electronically controlled shift system activates the solenoids required for the specified gear.

The tractor may be started by either moving the shift lever in the appropriate direction (forward or reverse) or by using the clutch pedal.

The clutch pedal is used to modulate pressure to the master clutch allowing the operator to feather engagement to any of the first seven forward gears or first reverse gear. Use of the clutch pedal allows for safe, accurate positioning of the tractor when hitching up implements or operating in confined spaces. Optimum inching control, particularly with heavy loads, is best achieved in lower gears and by reducing engine RPM.

The powershift transmission controller has built-in error codes which may appear on the powershift display of the tractor. Refer to “Transmission Troubleshooting” in Section 4 for an explanation and possible causes of the error codes.

Powershift Transmission Shifting

When the tractor is started, the transmission display module will display 3N showing that the shifter is in neutral position and that it is the default 3rd gear selection. Depressing the clutch pedal with the tractor stationary will automatically change the transmission to the first gear setting. By shifting the shift lever forward with inching pedal released, the transmission automatically will go to any operator pre-- selected gear from 1st thru 7th gears.

NOTE: When gears 4 thru 7 are selected, the programming starts the tractor in 3rd gear and automatically shifts up to the pre-- selected gear.

3N

Figure 2-54

2-37

Image 95

Buhler 2335, 2425, 2290, 2375, 2360 manual Powershift Transmission Operation, Powershift Transmission Shifting

Contents

Page Improvements California Emission Control Warranty Statement Federal Emissions Warranty Contents Machine Safety Precautionary Statements Personal Safety Driving the Tractor Tractor Operating the Tractor Page Servicing the Tractor Operating the PTO Diesel Fuel Safety CAB Safety Decals Page Rops Caution Located inside the cab on the rear left post 9702854 Articulation Lock Additional Safety ItemsAlternate Exit Rops Maintenance and Inspection Important Do not try to weld or straighten the cab/ROPS Page OPERATOR’S Manual Holder Introduction to this Manual Follow Your OPERATOR’S Manual Tractor Statement of USE Tractor Terminology Tractor OrientationOverall Description General Information Vehicle Identification Plate Identification NumbersTractor Identification Data Tractor Identification Engine Identification General Information Quad Shift III Transmission 12x4 Synchronized Powershift Transmission 12x2 PowershiftTransmission Identification Front and Rear Axle Identification Starter Solenoid Shield Battery CoverProtective Shielding Engine Side Covers Center PTO Articulation Drive Shaft Shield Master PTO Shield Band Tire ConfigurationsArticulation Stop Spacers Quick Reference Chart 2290 2335 2360 2375 2425 External Lighting General Information Controls and Instruments Overview of Location and Function Forward Operator Controls Overhead Controls Foot and Floor Controls Additional CAB Controls Right Side Console Controls General Information General Information General Information Operator Seat Controls Installation of CAB-MOUNTED Accessories General Information General Information General Information Bus bar pins are identified as follows General Information Precautions Battery Charging Welding & Battery ChargingPrecautions Welding Towing the Tractor Hauling the Tractor on a Transporter PRE-OPERATION Checks General Information Introduction Section Operation Precautionary Statements Entering the CAB CAB Operation Right Rear Window Seat Belt OPERATOR’S Seat Seat Adjustments Page Steering Wheel Tilt Control Steering Wheel Telescopic AdjustmentSteering Wheel and Column OPERATOR’S Control Console Operation Ether Aid Button Ashtray and Cigarette Lighter Front Windshield Wiper Switch Front and Rear Windshield Washer Switch Rear Window Wiper Switch Engine Oil Pressure Gauge Engine Coolant Temperature Gauge Operation Operation Right Console Operation Articulation Lock Engine Starting Tractor START-UP and Engine Operation Cold-Weather Starting Operation Engine Block Heater Tractor Boosting Cruise Control Operation Throttle Operation Operation Heater Stopping the TractorOverhead Climate Controls Air Conditioning Pressurizer Vents Radio Optional Equipment Mirror Foot Brake Braking SystemPark Brake Quad Shift III 12 x 4 Operation Transmission Operation Range Shifting Quad Shift III Shifting Forward/Reverse Shifting Gear Shifting within a Range Powershift Transmission Shifting Powershift Transmission Operation Operation Automatic Range Select Differential Lock Decelerator Pedal Driving the Tractor Tractor Lighting Rotary Light Switch Operation Operation Trouble Light Cab Dome Light Wide Transport Marker Lights Trailer Socket Roof-Mounted Work Lights Optional Operation Electronic Instrument Control System Electronic Monitor Digit Select Switch Electronic Monitor Electronic Monitor Acknowledge/Reset ButtonElectronic Monitor Rotary Select Switch Engine Derate and Eics Warning Lights Engine and Eics Electronic Engine Key to the RUN Position Engine Off Normal Operation Electronic Instrument Control System Key to the Engine Start Position Engine Cranking Engine Running Normal Operation Operation Operation Operation Operation Operation Calibrating the Electronic Instrument Control System Setting the Tire Rolling Radius Example Programming Units of Ground Speed Measurement Service Interval One Reset Service Interval One Alarm Reset Service Interval Two Reset Service Interval Two Alarm Reset Setting the Final Drive Ratio Setting the Transmission Output Shaft Gear Profile QSM11 Engine Low Transmission Lube Pressure Transmission Lubrication Filter Bypass Hydraulic System Filter Bypass Low Engine Oil Pressure below 100 kPa 15 psi Operation Operation Operation Low Coolant Level Operation High Engine Coolant Temperature Operation Operation Electrical System High/Low Voltage Operation Fuel Level Operation Transmission Speed Sensor Failures Park Brake Alert Electronic Monitor Rotary Select Switch Failures Engine Overspeed Condition Yellow and Red Engine Warning Lights Operation Additional Features Electronic Instrument Control System Operation Operation Operation Operation Operation 100 Engine Diagnostics 101 Description and OperationTransmission Output Shaft Sensor Actual Page 103 Implement Status SwitchOPERATOR’S Controls Page Caret 3/ Pos. C Distance Accumulator Feet Slip AlarmCaret 1/ Pos. a Acre accumulator Caret 2/ Pos. BPage Page Page Page 110 Implement Status Switch 111 112 Drawbar Assembly 113 Drawbar with Manual Hitch PINProper Drawbar PIN Latch Operation 114 Drawbar with Automatic Hitch PIN 115 Drawbar Loading 117 Implement Transport 118 PTO Operation 119 PTO Operation 120 121 122 123 Hydraulic System OperationHydraulic System Page 125 126 Remote Control Operation 127 Lockout Levers 128 Flow Control Adjustment 129 Pressure Release Detent Adjustment 130 Quick CouplersCoupler Connection 131 132 Bleeding Remote CylindersOperating Continuous Flow Hydraulic Equipment 133 134 Hydraulic Motor Applications 135 Optional Hydraulic EquipmentPoint Hitch Description 19 mm 3/4″ Coupler Kit P/N 136 Automatic Raise/Lower SwitchPoint Hitch Controls 137 Manual Raise/Lower SwitchRotary Depth Control Knob 138 Rate of Hitch Raise AdjustmentRotary Lowering Rate Control Knob Upper Link Hitch AdjustmentsLower Links Lift Links 140 Shims 141 Float MechanicalSway Blocks 142 Drawbar PositioningPTO Option 143 Category Conversion 144 145 Quick Hitch Installation Optional Category III/IVNImplement and Tractor When Backing UP 146 Implement ConnectionImplement Disconnect 147 Feedback Potentiometer 148 149 Implement HOOK-UPPoint Hitch Implements Semi-integral Implements 150 Point Hitch Operation 151 152 153 Tires and Articulation BlocksProper Tire Selection Factors Determining Best Tire Performance 154 Articulation Blocks 155 Loads Matched to the Tractor BallastingBasic Rules of Thumb for Ballasting Application and Ballasting 157 Too Little BallastToo Much Ballast 158 Tractor Weight DistributionRolling Resistance Calculation of Ballast Shipping Weight and Fore/Aft RatioUnballasted Shipping Weight Operating Weight and Fore/Aft Ratio 160 WeightsAdditional Ballast Requirements 161 Operation Clean the Fuel Tank VentClean the Hydraulic Suction Screen Every 500 Hours 162 163 164 Maximum Operating WeightMaximum weight 165 TOOLBOX/STORAGE TrayToolbox 166 BREAK-IN PeriodsBREAK-IN Period Engine BREAK-IN General Information Fuel Storage Fueling the Tractor Fuel Requirements Adding Diesel Fuel Removing the Hood Panels Engine AccessOpening the Hood Panels Front Grille Battery AccessRemote Valve Access Blank Page Page 2425 Tractors Every 10 Hours or DailyPage Every 10 Hours or Daily 82 F Ethylene Glycol Propylene Glycol Check the Fan Belt Tension Every 10 Hours or Daily 2290, 2335, 2375 QSM11 Engine Check Air-Conditioner Compressor Belt Tension 2425 N14 Engine 2360, 2425 N14 Engine Check the Engine Oil Level 2290, 2335, 2375 QSM11, 2360 and 2425 N14 Engine Drain the Fuel Filter Check the Hydraulic Oil Level Check the Brake Reservoir Level Check the Transmission Oil Level Lubricate the Optional 3-Point Hitch Brake Adjustment Lubricate the Lower Articulation Pin Lubricate the Front Steering Cylinder Pins Lubricate the Upper Articulation Pin Lubricate the Rear Steering Cylinder PinsLubricate the Front Drag Link Pins Lubricate the Rear Axle Drive Shaft Steady Bearing Lubricate the Rear Drag Link PinsReminder Every 50 Hours Check the Engine Air Cleaner Connections Method a Clean the Cab Air Filter Method B Check the Differential Oil Level Check Tire Air Pressure Check the Planetary Hub Oil Level Change the Engine Oil and Filter Every 250 Hours 2360, 2425 N14 2290, 2335, 2375 QSM11 Change the Coolant System Filter Change the Fuel Filter Check the Engine DCA4 Protection Level Check the Air-Conditioner Sight Glass Check the Air-Conditioner Drain Hoses Check the Weight Kit Hardware Torque Optional Check the Wheel Hardware Torque Configuration Torques Driveline Cross and Bearing Lubrication Page Clean the Battery Connections Check the Battery Electrolyte Level Clean the Engine Air Precleaner Check the Starter Battery Connections Clean the Hydraulic Reservoir Breather Change the Transmission Filter Change the Hydraulic Filter Change the Planetary Hub Oil Change the Differential Oil Check the Drawbar Wear Blocks Check the Axle Mount Bolt TorquePage Every 1000 Hours Change the Engine Inner and Outer Air Cleaner Elements Change the Cab Air Filter Every 1000 Hours Change the Transmission Oil Every 1500 Hours or Yearly Every 1500 Hours or Yearly Every 1500 Hours or Yearly Check the Transmission Mounts Change the Hydraulic Oil Check the engine mounts Check the Engine Turbocharger Connections Check the Cab Mounts Check the Radiator and Heating System Hoses Change the Engine Coolant Every 2000 Hours or 2 Years Every 2000 Hours or 2 Years Ethylene Glycol Propylene Glycol Indicated by Warning Light Clean the Engine Air Cleaner Outer Element Indicated by Warning Light AS Required Headlight/Work Lights Bulb Replacement Change the Brake Light Bulbs Change the Roof Warning Light Bulbs IGN Change Fuses/Relays Check the Throttle Settings Clean the Cab Seat and Upholstery Adjust the Decelerator Pedal SettingClean the Cab Floor Change the Windshield Wiper Blades Check the Windshield Washer Fluid Change the Brake Fluid Change the Ether Canister Drain the Fuel Tanks Articulation Blocks Wheel Installation AS Required Rear Fender Height Adjustment SINGLE, Dual and Triple Wheel Installation Special Tie Rod style dual wheels 32″ dual wheels AS Required Standard Tie Rod Style Dual Wheels AS Required AS Required Reminder Standard Drum-Style Triple Wheels AS Required AS Required Removal from Storage Storing the Tractor PreparationStoring Initial Engine Start-up Troubleshooting Chart Section Troubleshooting Troubleshooting Engine Troubleshooting Troubleshooting Transmission 12x2 Powershift Transmission 12x4 Quad Shift III and 12x2 Powershift Electrical System Open Hydraulic System Brakes Point Hitch CAB Tractor Performance Monitor Electronic Instrument Control System Operation Power TAKE-OFF PTO Blank Section Specifications Tire Size Height To Top Overall Widths 700/65 R38 Special Duals Drum Wheel Tread Width 20.8 R38 R1 Radial 900/50 R42 R1W Model Articulation Angle Tire Weights Base Tractor Weight 1136.3 2272.5 Radial Drum Row Crop 18.4 R38 Effect on Front Axle Effect on Rear Axle Kg lbs Example Optional Transmission and Axle WeightsDiesel Fuel Engine 2360 2425 Engine AIR Intake and Exhaust Transmission Specifications Drivelines Component Specifications AXLES/DIFFERENTIALS Brakes Electrical Capacities LUBRICANTS/FLUIDS Speeds AT 2100 Engine RPM Km/h MPH Speed Chart Liquid Ballast Table Inflation Pressure PSI 18.4 R38 Measure 710/70 R38 Metric Measure Specifications Tire Loaded Radius Replacement Bulbs Description BVI Bulb Number Optional Equipment Deluxe Radio with Premium Cassette/Weather Band Blank HEX Nuts and Locknuts Hardware Torque ValuesMinimum Hardware Tightening Torques Identification HEX CAP Screws and Carriage Bolts Locknuts Identification CAP Screws and Carriage Bolts Index Equipment -132 Operating remote equipment Transmission -6 Troubleshooting, 12x4 Quad Shift Dealer Copy Delivery ReportPage Owner Copy Page Description Check and ADJUST, AS Required Description Service Performed Check engine water pump belt tension Service Performed Dealer Order Only Publications Order Form II. Owner Information Dealer Order Information Proposition 65 Warning California