KNEGT 304G2 Operation Manual
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KNEGT 304G2 Operation Manual

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  • Page 1 OPERATION MANUAL KNEGT 304G2 WWW.KNEGT-INTERNATIONAL.COM.
  • Page 2 304G2 TRACTOR OPERATION MANUAL Please Read and Save This Manual KNEGT QUALITY TRACTORS EUROPE 2018.09...

  • Page 3: Foreword

    304G2 SERIES TRACTOR OPERATION MANUAL FOREWORD These series model 304G2 of KNEGT Brand is a series newly developed product of KNEGT BV. It is powered with the three-cylinder diesel engines that have the features of ample output, less vibration and low noise as well.
  • Page 4 PIN number and manufacturing date of the tractor while placing order for spare parts. Thank you for purchasing the Knegt Brand Tractor and cordially welcome your advice, suggestions and comments on our product so that we can make improvements timely in future.

  • Page 5: Table Of Contents

    304G2 SERIES TRACTOR OPERATION MANUAL CONTENT  FOREWORD ..................1 CONTENT ..................3 Chapter 1 Safety Precautions ............5 1.1 Safety Instructions ................. 5 1.2 Safety symbols ..................12 1.3 Measures for emergency ..............16 Chapter 2 Technical Specifications ..........17 2.1 Tractor characteristic ................
  • Page 6 304G2 SERIES TRACTOR OPERATION MANUAL Adjustment of the Brake ..............67   Adjustment of the Rear Axles ............67   Adjustment of the Front Axle (4WD) ..........69   6.6 Adjustment of the toe-in............... 73 6.7 Adjustment of the wheel track ............. 73 Chapter 7 Troubleshooting..............

  • Page 7: Chapter 1 Safety Precautions

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 1 Safety Precautions  1.1 Safety Instructions 1.1.1 Safety first  The respect of the rules for tractor use, maintenance and repair given in this manual is an essential element for the correct use of the tractors as envisioned by the manufacturer.
  • Page 8 This machine is manufactured in compliance with legislative and other requirements. It should not be altered in any way which could affect or invalidate any of these requirements. For advice consult your Knegt Distributor. Use only the Knegt approved attachments that are specified for your machine. Operating with...
  • Page 9 304G2 SERIES TRACTOR OPERATION MANUAL in mind. 2. Engage clutch gradually. Abrupt engagements, particularly if pulling out of a low area, a ditch or muddy grounds, or driving over a steep gradient, may cause dangerous tractor pitching. Immediately disengage the clutch if the front wheels tend to come off the ground.
  • Page 10 304G2 SERIES TRACTOR OPERATION MANUAL Knegt approved seat with seat belt. 14. When driving on public roads, be sure to respect traffic rules and regulations. 15. Do not rest your feet on the brake and the clutch pedals. 16. When driving on roads latch the brake pedals together by using the latch plate, braking with the pedals unlatched may cause side skidding of the tractor.
  • Page 11 304G2 SERIES TRACTOR OPERATION MANUAL the tractor is being backed up. 4. Never activate the power take-off (PTO) when it is connected to a moving implement, without previously making sure that no one is within operating range of this implement.
  • Page 12 304G2 SERIES TRACTOR OPERATION MANUAL parts or components. 3. Before disconnecting any hydraulic line or hose, make sure the system is pressure-free. 4. Hydraulic oil escaping under pressure can cause serious personal injury. When searching for or detecting oil leaks, make sure to use adequate safety protection such as shields, goggles and gloves.
  • Page 13 304G2 SERIES TRACTOR OPERATION MANUAL and experience for tire repair. Any incorrect tire installation may seriously threaten your personal safety. If any doubt exists, have work done by qualified persons. Explosive separation of a tire and rim parts can cause serious injury or death.

  • Page 14: Safety Symbols

    304G2 SERIES TRACTOR OPERATION MANUAL 1.2 Safety symbols Safety symbol Meaning Position Keep away from rotating On the right side components when the mechine of the radiator is working. Don’t touch the hot surface On the right side until it’s...
  • Page 15 304G2 SERIES TRACTOR OPERATION MANUAL Don’t fuel, On the right maintenance and so on when windshield the tractor is running. Power take-off actuator and/or rotational-speed selector position：disengaged Beside the PTO Power take-off actuator and/or operating rotational-speed selector lever,on the position：540rpm...
  • Page 16 304G2 SERIES TRACTOR OPERATION MANUAL No standing on the 3-point On the outside hitch or the shield. It may surface of the cause accident. squab pane When you see this symbols, you should read Operators On the Panel handbook. Checking and adjusting the Near the oil fluid level.
  • Page 17 304G2 SERIES TRACTOR OPERATION MANUAL Define of Remote hydraulic Above the Rear valve. beam Define of Remote hydraulic Above the Rear control valve. board On the engine Open the engine hood. hood. On the Seat Mandatory sign of front drive.

  • Page 18: Measures For Emergency

    304G2 SERIES TRACTOR OPERATION MANUAL 1.3 Measures for emergency 1. When lost of steering control, slow down the tractor, engage the emergency brake, and then shut down the engine. 2. If the engine shut down when going up the slope, step down the brake pedals immediately, and engage the park brake to avoid slipping down along the slope.

  • Page 19: Chapter 2 Technical Specifications

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 2 Technical Specifications  2.1 Tractor characteristic DF304G2 series tractor operator see table. Table 2-1 Technical Specification Engine Type of Control of Tractor Rated Type Rated Power hydraulic lift clutch and ROPS Model Speed (Kw) system brake (rmp) DF304G2 22.1...
  • Page 20 304G2 SERIES TRACTOR OPERATION MANUAL 2.2.2 Component Identification Plates      Engine Identification Plate Location The engine identification plate is attached to the left hand side of the engine block. The information contained on this plate includes the engine model and serial number.

  • Page 21: Technical Specification Of The Tractor

    304G2 SERIES TRACTOR OPERATION MANUAL 2.3 Technical specification of the tractor 2.3.1 Tractor specification  Tractor model DF304G2 Overall Length 3389(front ballast to end of hitch lever) Overall Overall Width 1535 Dimensions Overall To wheel 1500 （mm） Height To ROPS 2423 Front 6.00-12 Tyre 11.2-20...
  • Page 22 304G2 SERIES TRACTOR OPERATION MANUAL 7.01 Ⅰ 10.59 Ⅱ High 16.99 Ⅲ Ⅳ 24.59 Unladen mass(es): （Kg） Unladen mass(es) in running order: 1667 Front axle Rear axle 1024 Technically permissible laden masses（Kg） Total mass 1899 Front axle 7999 Rear axle...
  • Page 23 304G2 SERIES TRACTOR OPERATION MANUAL 2.3.2 Engine  Tractor Model DF304G2 Engine Model ZN390TE Type Four-stroke、water cooled、3 cylinder、L-type、direct injection Number of cylinders Bore and stroke（mm） 90×95 Total displacement（L） 1.813 Compression Cylinder sleeve style Rated power/speed（kW/rpm） 22.1/2400 Rate fuel consumption（g/Kw.h) ≤275 Maximum torque（N.m）...
  • Page 24 304G2 SERIES TRACTOR OPERATION MANUAL 2.3.4 Travelling and steering system  Model DF304G2 Front wheel drive axle Bevel gear drive axle Front wheel toe-in 5~10 Front (mm) axle Outward camber 3.5° alignin Kingpin caster 0° King pin inclination 7.5° Front 6.00-12 Air pressure（Kpa） 150~250 Tyre Rear 11.2-20...
  • Page 25 304G2 SERIES TRACTOR OPERATION MANUAL Diameter of Pin(mm) Clevis type Groud clearance(mm) Type Linkage Rotating Speed(r/min) 540、1000 PTO shaft Spline dimension 6-teeth φ35 rectangular spline Direction of rotation Clockwise(face forward) 2.3.6 Electricity and instrument panel  Tractor model DF304G2 Electric circut 12V single phase & negative ground...
  • Page 26 304G2 SERIES TRACTOR OPERATION MANUAL Direction-indicator lamp 21W amber Work lamp H3 12V 55W White 2.3.7 Capacities  Model DF304G2 Fuel tank(L) Engine coolant(L) Engine crankcase(L) Transmission and rear axle case(L) Front axle case(L) Steering tank 2.3.8 Farm implements to be attached  Name Specification Trailer Rated loading capacity: 2 tons Rotary tiller Tilling width: 1.25～1.5 m...
  • Page 27 304G2 SERIES TRACTOR OPERATION MANUAL 2.3.10 Vibration  In accordance with Regulation (EU) No 1322/2014 ANNEX ⅩⅣ Requirements applying to the driving seat 4.4.1 The arithmetic mean of the rms values of the weighted seat vibration acceleration (awS)≤1.25m/sec^2。 Class Ⅰ Light driver 0.60...

  • Page 28: Chapter 3 Running-In Of The Tractor

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 3 Running­in of the tractor  In order to prolong the service life of tractors, it is essential to break-in a new tractor or the engine after a major overhaul, before putting it into service. Breaking-in improves all of the fittings and contact surfaces in order to avoid premature failures.

  • Page 29: Running In Of Hydraulic Hitch System

    304G2 SERIES TRACTOR OPERATION MANUAL 3.3 Running in of hydraulic hitch system 1. Attach ballast or implement whose weight is 400Kg to 3 point hitch system. Push the lifting mechanism control to lowered position. 2. Run the engine in low speed for 10 min and in high speed for 10 min.

  • Page 30: Running In Of The Tractor

    304G2 SERIES TRACTOR OPERATION MANUAL 3.6 Running in of the Tractor When operating the tractor with a load during the running-in process, the load must be added from light to heavy and the gears must be changed gradually from low to high.

  • Page 31: Maintenance After Running-In

    304G2 SERIES TRACTOR OPERATION MANUAL 3.7 Maintenance after running-in After running-in, metal powders and dust will produce in the lubricant oil in the transmission system. All lubricating oil and hydraulic oil should be cleaned and replaced, carry out necessary technical maintenance before put tractor into normal use.

  • Page 32: Chapter 4 Operating Tractor

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 4 Operating tractor  4.1 Instrument and Controls To prevent from accident, it is necessary that you are familiar with instrument and controls. 4.1.1 Tractor Controls  Fig.4-1 Controls...
  • Page 33 304G2 SERIES TRACTOR OPERATION MANUAL 1、Multi function switch 2. Clucth Pedal 3. Shuttle Shift Lever 4.Steering Wheel adjust handle 5. Steering Wheel 6. Front axle engage handle 7. PTO Lever 8. Range Shift Lever 9. Hydraulic lock hand wheel 10. Seat adjusting handle 11.Seat Multiple valve control handle 13.
  • Page 34 304G2 SERIES TRACTOR OPERATION MANUAL position.ON position enables on circuit allowing engine to run. Cold Weather Start(3) — Preheat before start engine in cold weather. Refer the section“Start in cold weather” in this chapter. Start Position(4)—Turn key to start position to start engine.
  • Page 35 304G2 SERIES TRACTOR OPERATION MANUAL Coolant Temperature Gauge Coolant temperature gauge shows the temperature of the engine coolant. The temperature of green zone is 40℃ ~100℃, and red zone is 100℃~115℃. The normal temperature of engine coolant is 70℃~85℃. The most temperature is not over 95℃. If the coolant temperature gauge goes into the red zone, the coolant temperature alarm will light.
  • Page 36 304G2 SERIES TRACTOR OPERATION MANUAL Left and Right Turn Indicators (Green) Left and right turn indicators lights when left or right indicator lamp is lit. Brake Indicator (Red) Brake indicator lights when brake is depressed. At one time, the brake lamp will light.
  • Page 37 304G2 SERIES TRACTOR OPERATION MANUAL indicator switch. Push down horn switch 2 to swith on horn. The button 2 will return to initial postion after releasing. Turn main beam switch 3 to control the main beam lamp. 4、Switch plate： Fig.4-6 Switch plate 1.

  • Page 38: Driving The Tractor

    304G2 SERIES TRACTOR OPERATION MANUAL 4.2 Driving the Tractor 4.2.1 Getting on and leaving the tractor  Getting on or leaving the tractor must only be made where steps （ A） and handrails （ B） are provided. Always face the machine when entering and leaving. Make sure the step(s), handrails and your boot soles are clean and dry.

  • Page 39: Seat Belt

    304G2 SERIES TRACTOR OPERATION MANUAL 2 .Height Adjustment a)With the seat unloaded, turn the knob B in the required direction to raise or lower the seat. b)Raise or lower the seat until a clear view is achieved. • Seat Belt 1.Fasten the Seat Belt...
  • Page 40 304G2 SERIES TRACTOR OPERATION MANUAL Steering wheel can be adjusted forward or backward to make the operation of tractor satisfactorily by following steps. (1) Depress the the adjustment handle. (2) Pulling the steering wheel backward or pushing it forward as your need.
  • Page 41 304G2 SERIES TRACTOR OPERATION MANUAL NOTE: If temperature is below 5℃， refer to cold weather starting procedure in START IN COLD WEATHER section. (1) Pull hand throttle backward to about mid of lever travel to increase engine speed.Engine does not start with throttle pushed up.
  • Page 42 If indicator light stays lit for longer than 5 seconds under normal operating conditions, stop engine and check for cause. If loose or broken fan belt is not the cause, see your Knegt dealer. (3) Coolant Temperature Gauge The needle on the temperature gauge rises as engine warms up.
  • Page 43 304G2 SERIES TRACTOR OPERATION MANUAL 4.2.4 Start the Tractor  1. Loose the park brake system and press the horn then check the surroundings. 2. Depress the clutch pedal to the end, shift to a proper gear. If it fails, then loose the clutch pedal, and do these procedures again.
  • Page 44 304G2 SERIES TRACTOR OPERATION MANUAL b) Transmit a lower gear When the engine has a deep voice , speed drops, black smoke at work, in order to prevent the engine overload. Transmit a higher gear and small throttle when the load is lighter and work speed should not be too high, in order to save fuel.
  • Page 45 304G2 SERIES TRACTOR OPERATION MANUAL : Tractor wheels must be stopped or turning at the same speed before NOTE engaging differential lock. If possible, engage differential lock before entering the area where tires may slip. (2) Depress clutch pedal, place range shift lever in ”L” position, and gear shift lever in”I”...
  • Page 46 304G2 SERIES TRACTOR OPERATION MANUAL wear very quickly if driven in 4WD mode on hard surface for an extended period. Unless absolutely necessary, do not engage 4WD when driving on hard surface. • Use of the hydraulic steering system(see fig.4-1 No.5)
  • Page 47 304G2 SERIES TRACTOR OPERATION MANUAL 1. Reduce the throttle to slow down the tractor. 2. Depress the clutch pedal and depress the brake pedal to stop the tractor, and then place the gear shift lever and Shuttle shift lever in “Neutral” position. And then loosen the clutch and brake pedals.
  • Page 48 304G2 SERIES TRACTOR OPERATION MANUAL Fig.4-13 4.2.8 Hoist tractor  When you want hoist tractor, you should bundle up the hoisting slings scurely and suspend such as fig.5-1. Front suspend Frame,Rear suspend on Drawbar. After mak sure the hoisting slings is confirmed, hoist...

  • Page 49: Using The Tractor Implents

    304G2 SERIES TRACTOR OPERATION MANUAL Fig. 4-15 A——Front jacking point B——Middle jacking point of Axles C——Rear jacking point 4.3 Using the Tractor implents 4.3.1 Hydraulic lift system control lever  4.3.1The hydraulic lift system manipulate These series tractors are half division type hydraulic lift systems; it is the distributor, the hydraulic oil cylinder parts, such as composition of lifter assembly (see fig.
  • Page 50 304G2 SERIES TRACTOR OPERATION MANUAL the handle rise or fall, after you get the desired depth, you need to move the handle to the neutral position immediately. Fig.4-16 1. Hydraulic out-le(Optional) 2. Lift arm Falling block 4. Linkage oin Rising block...
  • Page 51 304G2 SERIES TRACTOR OPERATION MANUAL control valve. Connect Hose: (1) Take out the joint which in the tractor’s accessories, connect one end to implement on the pipeline. (2) Remove the rubber plugs, rubber plug for the same set of hydraulic output circuit are the same color.
  • Page 52 304G2 SERIES TRACTOR OPERATION MANUAL (2)Hydraulic lift system and hydraulic output valve cannot be used at the same time. 4.3.3 Use three­point lifting mechanism  Fig.4-18 1.Lift rod locknut 2.Lift rod 3.Limit chain 4.Limit chain locknut 5.Lower pull rod 6.Lower rod limt spring 7.Upper pull rod 8.Upper rod locknut 9.Lift arm These series tractors adopt rear (as shown in fig.
  • Page 53 304G2 SERIES TRACTOR OPERATION MANUAL (1) When the tractor is ploughing, in order to ensure the quality of ploughing, you shall adjust the length of the upper pull rod, lifting rod and limit chain according to the plow’s connection requirements and cultivation needs of the plough. In general, the...
  • Page 54 304G2 SERIES TRACTOR OPERATION MANUAL the same time to the shortest, so as not to hit driving seat and driver when they reach the highest position. (2) When the farm implement rise to the highest point automatically neutral, do not push the lifting handle back, so as not to open the safety valve.
  • Page 55 304G2 SERIES TRACTOR OPERATION MANUAL implement when the tractor stops. The speed of PTO changed by PTO control handle (as shown in fig 4-20). The control steps of the power output shaft are as follows: (1) Put the PTO control handle in neutral position.

  • Page 56: The Use Of Electrical Systems

    304G2 SERIES TRACTOR OPERATION MANUAL Fig.4-21 Ballast The wrench should be used as a tool when load and unload ballasts. When loading and unloading ballasts, it is necessary to pay attention to safety, ballasts easy to hit your feet. It is suggested that two people cooperate or find professional maintenance personnel when you need loading or unloading ballasts.
  • Page 57 304G2 SERIES TRACTOR OPERATION MANUAL (2) When the engine is in operation, it is not allowed to remove the connection wires on the generator. (3) The generator is negative grounded, and shall not be wrong, otherwise, the silicon rectifier element or regulator will be burnt.
  • Page 58 304G2 SERIES TRACTOR OPERATION MANUAL corrosion and so on. you should wear protective glasses and rubber gloves at the same time, use dry cloth to wipe dry sulfuric acid, with plenty of water and clean the residual sulfuric acid. If you accidentally splash the electrolyte into your face or eyes, wipe clean with dry cleaning cloth immediately, rinse with plenty of water, and seek medical attention immediately when serious.
  • Page 59 304G2 SERIES TRACTOR OPERATION MANUAL different electrical components according to the different load of electric equipment.(see fig 4-23) WARNING: (1)If there is a fault in the electrical components, check whether the fuse in the corresponding position of the line is burn out. If it has been broken, you can take a period of fuse from the fuses, tightly fix it between two clamps, then plug the fuse back in place.

  • Page 60: Chapter 5 Maintenance

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 5 Maintenance  Maintain the tractor well can make it work in a good condition, and protect the tractor from damage, even extend the life. CAUTION：Maintenance must be operated when the tractor is out of power! 5.1 Oil and lubricants 1、...

  • Page 61: Periodic Service

    304G2 SERIES TRACTOR OPERATION MANUAL ⑥front axle arms ⑦left and right front wheel housings Checking point ①Engine dipstick ②Rear axle housing dipstick, ③ Dipstick on left half shaft housing of front wheel drive axle ④Checking plug on the cover of air pump Oil outlet, ①Bottom of engine sump, ②bottom of rear axle,...
  • Page 62 304G2 SERIES TRACTOR OPERATION MANUAL 5.2.2 50h maintenance    1. Engine: After 50 hours of light load working, the oil in the engine sump and injection pump should be changed, at the same time, change the filter element; clean the sump, the filter and the filter net with clean diesel.

  • Page 63: Transporting The Machine

    304G2 SERIES TRACTOR OPERATION MANUAL 2. Check and fasten the nuts of engine cylinder head, adjust the valve clearance if needed. 3. Clean the water scale in the cooling system. 4. Replace the oil of the injection pump. 5.2.6 1000h maintenance  1. Engine ①Check the condition of the valve, repair it if necessary.
  • Page 64 304G2 SERIES TRACTOR OPERATION MANUAL for the clearance height. 5.3.2 Before Using the Trailer/Transporter  1.Remove any dirt or debris from the trailer. 2.Check the operation of the park brake. 3.Check the trailer bodywork for signs of damage. 4.Check the tyre pressures are correct. 5.Check the lights are working and are the correct voltage for the towing vehicle.

  • Page 65: Storage

    304G2 SERIES TRACTOR OPERATION MANUAL Driving on a public street or roadway without turn signals, slow moving vehicle emblem, or reflective markings could lead to accidents causing serious personal injury or death. Keep the tractor in a dry place where the tractor is sheltered from the Note：...
  • Page 66 304G2 SERIES TRACTOR OPERATION MANUAL 5.4.2 Tractor maintenance during storage  1. During the storage, check and protect the tractor from rust, corrosion, deterioration and deformation every month. 2. Start the tractor every 3 month, and run it at a low speed for 20 to 30 minutes, check if there is somewhere abnormal.

  • Page 67: Chapter 6 Adjustment Of The Tractor

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 6 Adjustment of the tractor  Adjustment of the engine Details of the engine Adjustment can be approached in the manual of engine 6.2 Adjustment of the clutch Because of abrading, the clearance between the release lever’s head and the release bearing become small and small, even make the lever and the bearing connect and rotating together.
  • Page 68 304G2 SERIES TRACTOR OPERATION MANUAL As Fig.6-2 shows, when assembling the clutch, make sure the clearance between release bearing and release rod be 2mm, namely the clutch pedal free path should be about 25mm. When adjusting,as first,unscrew the adjusting nut 1 and 5, adjust the Clutch pull rod with a wrench at the position of mark ‘a’to insure the pedal free path to be in the stated range,...

  • Page 69: Adjustment Of The Brake

    304G2 SERIES TRACTOR OPERATION MANUAL 6.3 Adjustment of the Brake The free path of the brake pedal is between 80 and 85mm. During the usage, as the driven disk abrading, the free path exceeds the regular range, even influence braking, so it must be adjusted.
  • Page 70 304G2 SERIES TRACTOR OPERATION MANUAL While assembling the spiral-bevel pinion and the spiral crown gear, the pre-stress of the bearings in main drive has to be correctly established first, and the meshing of the pinion and crown gear could then adjusted.

  • Page 71: Adjustment Of The Front Axle (4Wd)

    304G2 SERIES TRACTOR OPERATION MANUAL The meshing zone can be measured by smear test of painting the crown gear teeth with some colors such as red lead or Prussian blue. The standard meshing zone should drift to small end slightly (i.e. short toe contact, see Fig.
  • Page 72 304G2 SERIES TRACTOR OPERATION MANUAL Fig.6-5 1.Locking nut 2.Split pin 3.Bevel drive pinion 4.Adjusting shims 5.Taper roller bearingⅠ 6.Bearing seat 7. Taper roller bearingⅡ 8.Shims for bearing seat 9.Main drive case 1.5 N.m.If there is no equipment or tool can be used to measure the torque, ask somebody who is experienced for help.
  • Page 73 304G2 SERIES TRACTOR OPERATION MANUAL either bearing seat, the pre-stress of bearings is alternated but the crown gear position will kept unchanged; if moving the Adjusting shim from one bearing seat to the opposite one, the crown gear will be shifted towards the side where the Adjusting shim is added but the pre-stress of bearings will remain unchanged.
  • Page 74 304G2 SERIES TRACTOR OPERATION MANUAL width, and it’s height equal to at least 55% of the tooth’s height. If the meshing zone doesn’t accord with the proper position, adjust the thickness of the Shims for bearing seat . During the adjustment, when it has the proper meshing zone, but without the correct clearance, or on the other way, it should be better to get the proper meshing zone, with the clearance not less than 0.16mm.

  • Page 75: Adjustment Of The Toe-In

    304G2 SERIES TRACTOR OPERATION MANUAL Adjusting shims for the first drive.Generally, the clearance is between 0.16 to 0.3mm. After the adjustment, reinstall all of the components. It’s better to ask someone professional to finish the work. Caution： 6.6 Adjustment of the toe-in Fig 6-8 1.

  • Page 76: Chapter 7 Troubleshooting

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 7 Troubleshooting  Abration, deformation and improper servicing contribute to a technical change of the components. Then it will cause troubles. At this time, the tractor must be checked and get rid of them. If failed to do this, the conditions may be worse, even result in an accident.

  • Page 77: Gearbox

    304G2 SERIES TRACTOR OPERATION MANUAL 7.2 Gearbox Troubles & possible causes Fixing methods (1) There are hum or slap noises in the gearbox ① The gear abraded heavily, or the tooth face ① Replace gear peels off, or the gear teeth are broke ②...

  • Page 78: Braking System

    304G2 SERIES TRACTOR OPERATION MANUAL 7.4 Braking system Troubles & possible causes Fixing methods (1) Brake fails ① The brake disk is worn seriously, or worn ① Put air out of pipe eccentrically. ② Free path of brake pedal is too large ②...

  • Page 79: Walking System

    304G2 SERIES TRACTOR OPERATION MANUAL ⑥ Steering ball is abraded seriously ⑥ Replace (3) Too big noise ① Front bevel transmission gear engage ① Adjust badly ② Bevel transmission bearing clearanced is ② Adjust or replace too large or the bearing is broken ③...

  • Page 80: Pto

    304G2 SERIES TRACTOR OPERATION MANUAL ④ The oil is too gummy ④ Replace ⑤ Ball valve is no of efect, and steer wheel ⑤ Check and fix work heavily when steer quickly or slowly, and steer powerlessly ⑥ Steer system leak include inside or ⑥...

  • Page 81: Hydraulic Hitch System

    304G2 SERIES TRACTOR OPERATION MANUAL (2) The PTO has no power ① The driven plate lining in the hydraulic ① Replace cluch abraded heavily or the abrasion lean to one side ② The valve is broken ② Replace ③ The hydraulic cluch leaks heavily ③...

  • Page 82: Electrical System

    304G2 SERIES TRACTOR OPERATION MANUAL (4) Sink speed of the implement is normal, but it can’t reach the toppest position or exceed the toppest position Extension rod is too short or too long Adjust the length (5) Implement cannot be put down ①...
  • Page 83 304G2 SERIES TRACTOR OPERATION MANUAL ④ The carbon brush and the commutator ④ Check and adjust carbon brush contact poorly spring pressure ⑤ Starter motor is broken or shorten ⑤ Check and repair (7) The starter motor starts weakly, and cannot start the engine ①...

  • Page 84: Chapter 8 Appendix

    304G2 SERIES TRACTOR OPERATION MANUAL Chapter 8 Appendix    Appendix 1 Standards and Regulations Standard Name of standard DF25-45G2 系列轮式拖拉机 Q/3204BYN008 DF25-45G2 series wheeled tractor （EU）No 167/2013 On the approval and market surveillance of agricultural and forestry vehicles supplementing and amending Regulation (EU) No 167/2013 of the European Parliament （EU）No 1322/2014...

  • Page 85: Appendix 2 Tightening Torque Table Of Main Bolts And Nuts

    304G2 SERIES TRACTOR OPERATION MANUAL Appendix 2 Tightening Torque Table of Main Bolts and Nuts Tightening Intensity Installation position specifications torque(N·m) grade Connecting bolt for engine and clutch 41～51 Grade 8.8 housing Connecting bolt and screw for clutch housing and gearbox housing, gearbox housing and 73～89...

  • Page 86: Appendix 3 Scheme Of The Electric System

    304G2 SERIES TRACTOR OPERATION MANUAL Appendix 3 Scheme of the electric system...

  • Page 87: Appendix 4 List Of Damageable Parts

    304G2 SERIES TRACTOR OPERATION MANUAL Appendix 4 List of damageable parts Code Name Qty. Remarks 404-11.48.020 Left headlights 404-11.48.021 Right headlights 404-11.48.022 Left tail lamps 404-11.48.023 Right tail lamps 804-6.48.024 Working lights 504G3.48.021 S116 Turn signal lights 504G3.48.025 Fuse box 504G3.47.015...

  • Page 88: Appendix 6 Mechanical Couplings

    Appendix 6 Mechanical couplings 6.1、Clevis Type 1. TECHNICAL DATA 1.1. MAKER Changzhou Knegt Agricultural Machinery Group Co. Ltd. - No.328 Xinye Road, Xinzha Town, Changzhou District, Jiangsu Province, P.R. China - 1.2. TYPE Tractor clevis mechanical coupling – non-automatic trailer coupling CODE DF300-6.35B.001 according to directive 2009/144/EC - all.
  • Page 89 304G2 SERIES TRACTOR OPERATION MANUAL 2.2. ASSEMBLY See drawing no. 300-6.35B.001. Use only bolts M16 8.8. Tightening torque: 225 Nm. CAUTION Secure all pins with cotter.
  • Page 90 304G2 SERIES TRACTOR OPERATION MANUAL...

  • Page 91: Technical Data

    304G2 SERIES TRACTOR OPERATION MANUAL 6.2、Swing drawbar 1. TECHNICAL DATA 1.1. MAKER Changzhou Knegt Agricultural Machinery Group Co. Ltd. - No.328 Xinye Road, Xinzha Town, Changzhou District, Jiangsu Province, P.R. China - 1.2. TYPE Tractor drawbar mechanical coupling – non-automatic trailer coupling CODE DF300.53A.001 according to directive 2009/144/EC - all.
  • Page 92 304G2 SERIES TRACTOR OPERATION MANUAL 2.2. ASSEMBLY See drawing no. 300.53A.001. Use only bolts M16 8.8. Tightening torque: 225 Nm. CAUTION Secure all pins with cotter.
  • Page 93 304G2 SERIES TRACTOR OPERATION MANUAL...

  • Page 94: Appendix 7 E-Mark Certificate

    304G2 SERIES TRACTOR OPERATION MANUAL Appendix 7 E-MARK certificate...
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  • Page 97 304G2 SERIES TRACTOR OPERATION MANUAL...
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  • Page 99 304G2 SERIES TRACTOR OPERATION MANUAL...

  • Page 100: Appendix 8 Optional Accessories

    304G2 SERIES TRACTOR OPERATION MANUAL Appendix 8 Optional Accessories Application Accessory Qty. Safety frame Safeguard the operator Sunshade Safeguard the operator 7-12 12.5/80-18 Appendix 9 Application Packing List Designation and specifications Qty. Remarks Knegt Brand Tractor To be disposed as per order...
  • Page 101 DF304G2 SERIES TRACTOR OPERATION MANUAL Index 1000h maintenance ........61 Equipment ........... 22 100h maintenance ........60 Farm implement with wheel ......48 10h maintenance .......... 59 Farm implements to be attached ....24 250h maintenance ........60 Front driven axle (4WD) ......77 500h maintenance ........
  • Page 102 304G2 SERIES TRACTOR OPERATION MANUAL Running-in of hydraulic steering system ..27 Plate ............. 18 Running-in the engine without load .... 26 Tractor Maintenance ........9 Safety first ............. 5 Tractor maintenance during storage .... 64 Safety Instructions ......... 5 Tractor specification ........

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