Mahindra JINMA-200 Operation Manual - 2.Water

Manual is about: Jinma series wheeled tractors

Summary of JINMA-200

  • Page 1

    Jinm a series tractor operation manual jinma-200 jinma-204 jinma-250 jinma-254 jinma-300a jinma-304a mahindra yueda (yancheng) tractor co.,ltd ..

  • Page 2: Preface

    1 preface jinma series wheeled tractors ( 、 、 、 、 jm-200 jm-204 jm-250 jm-254 m- 、 ) 300a jm-304a are small four wheel tractors of new type , which are developed according to the increasingly rising demands of dometic and overseas agricultural machinery for small new wheeled tractors . The tractors ...

  • Page 3: Precautions

    2 precautions 1. Drivers should read the operation manual carefully and be familiar with the performance, operation and maintenance of the tractor. Otherwise we will not be responsible for any quality problems caused by improper operation. 2. Never fill the fuel tank with unfiltered or un-precipitat...

  • Page 4: Contents

    1 contents …………………………………………………………………………………………… preface (1) ……………………………………………………………………………………… precautions (2) Ⅰ ……………………………………………………………… chapter main specifications (1) Ⅱ …………………………………………………………… chapter operating the tractor (5) ………………………………………………………………… 1.Fuel and lubricating oil (5) ………………………………………...

  • Page 5

    2 ………………………………………………………………………………… 3.Brake (52) …………………………………………………… 4.Steering gear and walking system (53) …………………………………………………………… 5.Hydraulic hitch system (54) …………………………………………………………………… 6.Electrical system (55) …………………………………………………………………… 7.Electrical system (56) Ⅵ ………………………………………………………………………… cha...

  • Page 6

    Ⅰ chapter main specifications model jm-200 jm-204 jm-250 jm-254 jm300a jm304a type × 4 2wheeled × 4 4wheeled × 4 2wheeled × 4 4wheeled × 4 2wheeled × 4 4wheeled overall dimen-sions (mm) length width(without ballast) heitht(to steering wheel) 3080 1250/1410 1910 3080 1250/1410 1910 3080 1280/1440 193...

  • Page 7

    Model jm-200 jm-204 jm-250 jm-254 jm300a jm304a engine 12-hour power(kw)/rated speed r.P.M 14.7 14.7 18.4 18.4 22.1 22.1 × bore stroke(mm) × 80 90 × 80 90 × 85 90 × 85 90 × 90 95 × 90 95 fuel consumption (g/kw·h) ≤ 245 ≤ 245 ≤ 245 ≤ 245 ≤ 255 ≤ 255 oil consumption (g/kw·h) ≤ 2.0 ≤ 2.0 ≤ 2.0 ≤ 2.0 ≤ ...

  • Page 8

    Model jm-200 jm-204 jm-250 jm-254 jm300a jm304a hydraulic systems type half remote hydraulic pump cbn-e306 gear pump cbn-e306 / 314 gear pump cbn-e306 gear pump cbn-e306 / 314 gear pump cbn-e310 gear pump cbn-e310 gear pump hydraulic cylinder × horizontal single− acting type 63 100(mm) distributor s...

  • Page 9

    Model jm-200 jm-204 jm-250 jm-254 jm300a jm304a electrical equipments and gauges ammeter + ( ) -30~0~ 30 a oil pressure gauge ( ) 12v 0~0.5 mpa water temperature gauge ℃ 12v (40~100) pressure gauge 0~1.0 mpa head lamp nd118-80t , 20/8w 12v rear light wd115-2 , 20/8w.12v direction light ft12 , 8w.12v...

  • Page 10: Chapter

    5 Ⅱ chapter operating the tractor 1.Fuel and lubricating oil 1) for fuel and lubricating oil for the tractor see table 2-1. Table 2-1 fuel and lubricating oil for the tractor 2) cautions for filling fuel using clear diesel fuel is an important factor to prevent troubles in engine and prolong the eng...

  • Page 11: 2.Water

    6 2.Water 1)radiator should be filled with clean soft water so as to eliminate scale in the engine cooling system which will reduce cooling efficiency. Only after being softened can hard water such as well water, spring water, etc. Be used. Method for softening hard water is as the follows: a. Boil ...

  • Page 12

    7 table 2-2 running-in standard of the tractor matters needing attention during running-in process: a.Check on whether the engine runs normally. B.Check on whether the adjustment of the clutch is normal and the disengagement is complete. C. Check on whether the gear shift of the gearbox (including f...

  • Page 13

    8 working condition of the brake. F.Check on and tighten the nuts and bolts on all connection positions. G.Check on injector and valve clearance, adjust them if necessary. H.Check on working conditions of electrical system. I.Check on and adjust the toe-in of front wheel. J.Inject grease into each l...

  • Page 14

    9 fig.2-1 controls and instruments.

  • Page 15

    10 17) two-position switch: pull the switch to the first position, the headlights (lower beam) will be lighted, to the second position, the full-beam of the headlights will be lightened. 18) starting switch: it has two functions: one is for switching on or off the circuit current and the other is as...

  • Page 16

    11 c. When switch starting, set the decompression lever to decompression position too. Turn the starting switch clockwise to "start" position, thus the engine is driven by starter, the starter must not be operated more than 5-10 sec. For each start. Only after an interval of not less than 2 minutes ...

  • Page 17: 3) Operating The Tractor

    12 a.Lift the implement. B.Depress the clutch pedal, put the gear shifting lever into the desired lower gear, release the parking brake lock pawl of the brake pedal. C.Observe the environment to confirm that there are no obstructions on the road and sound the horn to call attention to the people. D....

  • Page 18: 4) Stopping The Tractor

    13 4) stopping the tractor a. Throttle the engine down to lower the speed of the tractor. B. Depress the clutch pedal quickly and shift the gear-shifting lever to neutral position. C. Release the clutch pedal and let engine run idle. D. Depress the brake pedals to stop the tractor, then lock the ped...

  • Page 19

    14 f. If front end of the tractor rises up in operation, throttle down the engine, disengage the clutch and reduce the load to protect the tractor from longitudinal overturning. G. If the engine runs away, immediately pull out the fuel cut-off rod, move decompression lever to "decompressing" positio...

  • Page 20

    15 implement could be adjusted, if desired position of the implement has been got, set the position of the stopper on the return rod to limit the control lever. Tighten the stopper on the rod with screw, so that the lever can be pushed to the same position every time. Adjustment may be done during p...

  • Page 21: Note:

    16 require any adjustment. Only if the right lifting rod is adjusted to its limits, the left lifting rod would be adjusted to obtain the uniform plowing depth. In order to obtain better plowing quality in actual operation, still need to adjust the plowing width according to the plow operation manual...

  • Page 22

    17 store the spare electricity produced by the generator. While the engine doesn't work or run at low speed, the stored electrical energy can supply electricity for all of the electrical devices and to start the tractor. While the engine overloads in a short time, the battery can help to supply elec...

  • Page 23: 3) The Starter

    18 of more than 100v is not allowed to check generator insulation; only multimeter of high resistance can be used to check the nature of generator insulation; otherwise the diode will be punctured. 3) the starter a. Keep the starter clean and the contacts between wires in good condition. B. The time...

  • Page 24: 1. Shift Maintenance

    19 chapter Ⅲ technical maintenance of the tractor in order to keep the tractor in excellent condition, prolong its service life and reduce troubles, the users must often check the technical conditions of the tractor and strictly carry out technical maintenance of all classes. Table 3-1 technical mai...

  • Page 25: 4. Third Class Maintenance

    20 5) check the oil level in transmission box and front drive axle, refill if necessary. 6) wipe the battery with a piece of cloth, check the electrolyte level which should be 10- 15 mm above the polar plates, refill with distilled if necessary . Smear the terminals with grease to avoid corrosion. 3...

  • Page 26: 6. Maintenance In Winter

    21 7) check and adjust the meshing backlash and print of the main drive bevel gears, the bearing clearance and preload of the bevel gears. 8) clean the oil filter in the hydraulic lifting system, replace the oil in the system with fresh oil. 9) clean steering gear, replace the lubricating oil in it....

  • Page 27: Ter

    22 Ⅳ ter achapdjustment of tractor 1. Adjustment of clutch due to continuous wear of parts during operation of the clutch, clutch slip and clutch incomplete disengagement will happen, which can't make the tractor work normally; therefore adjustment of clutch should be timely made. 1) adjustment of d...

  • Page 28

    23 when adjusting the free travel of the clutch pedal (fig. 4-1), firstly adjust the length of clutch push rod (15) to ensure that the clearance between end faces of three release levers and ± release bearing is 2.5 0.5mm and the idle travel of release rock arm is 3.5-5mm; after adjustment tighten i...

  • Page 29

    24 faces of release levers and the working face of pressure plate be b=45mm. When the clutch engages, the gap a=2-3mm between release bearing (9) and release levers (6) should be kept; and 3 working faces of the release levers (6) should be in the same plane , the allowed deviation is 0.25 mm. B.Fre...

  • Page 30

    25 reducing axial displacement and increasing supporting rigidity of the spiral bevel gears under operation. After operation for a period, as the conical bearings wears, the former preload will disappear gradually, and moving clearance will occur between the two conical bearings when the two moving ...

  • Page 31

    26 coloring method is adopted in the inspection of the mesh print. Smear red-lead paint evenly on the faces of the bevel gear teeth. Turn the bevel gears several times until the distinct contact traces are imprinted on the teeth faces of the bevel pinion. The print imprinted on the teeth faces of th...

  • Page 32

    27 c. Adjustment of mesh backlash and mesh print during adjustment, the bevel gear and pinion axially moving will change both mesh backlash and mesh print. If the mesh print requirement is contradictory to mesh backlash, correct mesh print should mainly be ensured, and the adjustment range of mesh b...

  • Page 33: 4. Adjustment Of Brake

    28 4. Adjustment of brake after the tractor has worked for a period, the wear of the friction disc of the brake makes the gap between friction disc and brake drum or friction disc and brake case and brake cover increase and affect the brake performance. Excessive free travel will cause brake ineffec...

  • Page 34

    29 while left and right brake adjustment is unidentical and the tractor running in high speed is braked in emergency , unidentical tyre print length (left and right ) and yaw motion appear .In such case ,the brake pull rod should be shortened in the side with short print length of tire ,or vice vers...

  • Page 35

    30 b. Travel adjustment of brake pedal loosen the locking nut (7) on pull rod adjusting fork (6) and turn brake pull rod adjusting fork to change the length of the pull rod (8) until the displacement (from the highest position of the brake pedal to friction disc assembly being completely braked) of ...

  • Page 36

    31 should be made timely. During adjustment, firstly support the front wheels off the ground, and dismantle the bearing cover and pull out the split cotter on nut (6), then screw nut (6) until the bearing clearance is eliminated, and return the nut (6) in 1/15-1/7 turn, then lock the nut with split ...

  • Page 37

    32 2) adjustment of side reduction gear pairs (fig.4-10) during assembling, choose gasket (13) of driving shaft cover to keep the mesh backlash of side reduction gear pairs among 0.2-0.4mm, and ensure meshing contact traces..

  • Page 38

    33 3) adjustment of intermediate driven gear pairs (fig.4-9) during assembling, choose adjusting shim (2) of the standing shaft to keep the mesh backlash among 0.2-0.4mm and ensure meshing contact traces. 7. Adjustment of wheel tread 1) adjustment of front wheel tread the front wheel treads of agrac...

  • Page 39

    34 2) adjustment of rear wheel tread the wheel tread of the back wheels can be steplessly adjusted through changing or turning over the fixed position of the driving wheel hubs in the driving shaft. It can be also adjusted in steps through turning over the wheel rims or exchanging the right and left...

  • Page 40

    35 a. Adjustment of bearing clearance in order to ensure the normal work of the steering gear, the clearance of the bevel bearings 7204 on either end of steering worm should be adjusted. When the bearings wear out to make the axial clearance increase, the clearance should be adjusted timely; i.E. Ma...

  • Page 41

    36.

  • Page 42

    37 adjusting method: loosen nut (7), turn adjusting screw (8) to make rock arm shaft (2) move axially and therefore the mesh clearance is changed. When the rock arm shaft is in middle position, the free travel of steering wheel outside is ° 50-55mm, i.E. The idle angle of the steering wheel is no mo...

  • Page 43

    38 valve sleeve of the steering control valve (6) is connected with valve core (7) through plug (5), and spring leaf is fixed in the middle of the valve. The hole in the valve core (for mounting the plug) is a little bigger than the hole in valve sleeve (6), so they can rotate relatively, the outsid...

  • Page 44

    39 the steering gear, which has been decided during designing; if the radial or axial clearance of the stator and rotor pair is too big to cause no manpower steering, then the rotor and stator pair should be replaced. In other conditions, adjustment is not needed. 9. Construction and adjustment of h...

  • Page 45

    40 with the rotation of the engine, the oil in the cavity will continuously flow into the lifter through gear pump. During working, there is pressure difference between the suck oil cavity and pressure oil cavity of the gear pump, the high pressure oil of pressure oil cavity will leak and return to ...

  • Page 46

    41 through returning oil cavity a according to the flow direction designated by the arrow of the fig4-19(b). Then the entering oil cavity b and returning oil cavity c of the cylinder are sealed by main control valve (1); the oil cylinder is on seal and lock condition, and the implements are maintain...

  • Page 47

    42.

  • Page 48

    43 b. Working principle of lifter fig.4-20 is a working principle diagram of position adjusting of the lifter (with simple direction exchange valve and high adjustable performance). While pulling the operation handle (10) to lowering position, position locating steel ball (8) falls into lowering the...

  • Page 49

    44 tension of return spring (6) of the main control valve, operation handle (10) and main control valve (5) jump back to the neutral position at the same time. And the cylinder stops returning oil, the implement also stops falling. Thus, the falling of the implement depends on the fixed position of ...

  • Page 50

    45 rod (4). The closer the clearance between return stop block (1) and return push rod (4) is, the higher the implement rises. Notes: during operation, if the adjustment is not suitable, it possibly makes the operation handle can not return to its position in time, and can cause parts damage due to ...

  • Page 51

    46 depth is reached, adjust the clearance between lowering stop block (3) and stop pin (4). After adjustment, fix stop block (3) on return push rod (5) with bolt and nut, then raise the implement several times to check the adjustment. If the implement is provided with a supporting wheel, the floatin...

  • Page 52

    47 in order to ensure safety of the trailer transportation of the tractor and achieve the aim of prompt stop of the tractor and trailer, air brake system is mounted on the tractor. The system is made up of air compressor (1), receiver (5), brake valve (4), air pressure gauge and pipes (fig.4-23). 1)...

  • Page 53

    48 valve seat spring, and reseal the passage between receive and the left and right brake air chamber of the trailer. At this moment the waste gas (compressed air) in left and right air chamber will go into the air through pipes, hole b of brake valve, inner hole of core rod and inner hole c of tapp...

  • Page 54: 1. Engine

    49 Ⅴ . Main troubles of tractors and trouble shooting 1. Engine 1) adjustment of dual stage clutch 2) engine does not develop full power cause remedies 1.Weather cold pour hot water into the radiator or preheat the oil before pouring it into crankcase 2.Fuel flow unsteady check and clean the fuel pi...

  • Page 55

    50 3) engine does not develop full power check if the engine can be cranked by hand . If not , the cause may be as follows. A.Crankshaft and bearing seized up repair or change them b.Piston sticking repair or change piston cylinder liner if the engine can be cranked freely , the causes may be as fol...

  • Page 56: 2. Transmission System

    51 4) engine smoking abnormal 5) engine overheat 2. Transmission system 1) clutch slippage cause remedies 1.Engine overloaded lighten the load . If the matching of engine and driven unit is inadequate ,correct it . 2.Black smoking becasue of second compression ring fitted inversely or oil scraper ri...

  • Page 57: 3. Transmission System

    52 2) incomplete disengagement of clutch and difficult shifting 3) abnormal noise in gearbox ℃ 4) gearbox overheat (oil temperature is more than 90 ) 3. Transmission system 1) ineffective brake cause remedies 1.Excessive or too small free travel readjust according to requirements 2.Unidentical clear...

  • Page 58

    53 2) riding direction change with braking on both sides of driving wheel 3) incomplete disengagement and generating heat 4. Steering gear and walking system 1) difficult steering 2) difficult steering cause remedies 1.Right and left brake pedal travel different readjust brake pedal travel 2.One sid...

  • Page 59: 5. Hydraulic Hitch System

    54 3) oscillation of the front wheels 4) early worn out of front wheel tyres 5. Hydraulic hitch system 1) implements not being able to lower or lift 2) fast still faling of implements cause remedies 1.Excessive clearance of tapered roller bearing on front wheel or bearing worn out readjust clearance...

  • Page 60

    55 6. Trailer air brake system 1) insufficient air pressure 2) iinsufficient brake force, air pressure gauge pointer continuously falls during brake, continuous exhaust sounds at exhaust mouth 3) brake situation not being able to be relieved after loosening brake pedal cause remedies 1. Air pump bel...

  • Page 61: 7. Electrical System

    56 7. Electrical system 1) starter 2) generator cause remedies 1. Starter is out of running ⑴ connecting wire broken or poor contact of connecting wire weld or tighten the nuts on contacts ⑵ low voltage of battery recharge or replace battery ⑶ poor contact of brush and commutator clean surface of co...

  • Page 62

    57 cause remedies ⑵ each or both of the diode damaged replace ⑶ generator belt too loose adjust to tighten belt 3. Unsteady current ⑴ generator belt slips remove oil dust or adjust belt tension ⑵ poor contact of recharged circuit check and remove ⑶ coil of stator and rotor will be in short circuit o...

  • Page 63

    58 3) battery cause remedies 1. Frequently insufficient electric power ⑴ breakdowns of generator or regulator or no charging electric current repair generator or regulator ⑵ loosened connecting wires of charging circuit or rust making resistance increase ⑵ check to see whether terminals and bolts of...

  • Page 64: Chapter

    59 Ⅵ chapter appendix 1. Wiring diagram of the electrical system 2. Accessories for customers to order customers may order and purchase the following accessories of the tractors from our factory according to requirements:.

  • Page 65

    60 serial no. Name quantity purpose 1 high-lugged tyres one pair used in paddy field 2 turf tyres two pairs for garden use 3 cab 1 improve driver's working condition 4 protective roll bar 1 ensure safety of drivers 5 belt pulley 1 for fixed operation.

  • Page 66

    61 3. Distribution diagram of rolling bearing and transmission system of jm series tractors.

  • Page 67

    62.

  • Page 68

    63 4. Specifications and distributions of oil seals in jm series tractors' chassis parts specifications positions qt y. Jb2600-80 oil seal × × pd35 55 8 × × sd35 55 10 × × pd50 72 12 × × pd50 80 12 × × pd55 75 12 front end of 1st shaft inside bearing cover of pto shaft outer of driving shaft bushing...

  • Page 69

    64 parts specifications positions qt y. Non-standard oil seal of standing shaft non-standard oil seal of standing shaft × × 40 48 6.5 × × 38 62 11.5 lower part of steering kunckle of front axle inner end of front wheel hub 2 2 gb3452.1-82 o-ring × 30 3.55 upper part of left end right steering kunckl...

  • Page 70: 5. Sizes Of Hitch System

    65 5. Sizes of hitch system note:* are adjustable sizes parts specifications positions qty. Lifte r jb2600-80 oil seal × × sg42 62 10 outside of lift shaft 2 gb3452.1-82 o-ring × 9 1.8 × 13.2 2.65 × 13.2 2.65 × 17 2.65 × 19 2.65 inside of oil drain plug joint of distributor and lifter outside of pre...

  • Page 71

    66.

  • Page 72

    67 6. Oecd approval no. Of jm series tractors oecd approval no. Of tractors to which the protective structure are fitted model jm-180 jm-200 jm-204 jm-254 oecd approval no. (full code) 1354 1563 1657 1650 model oecd approval number jm-180 nt/rops - r/s0110/4 jm-184 nt/rops - r/s0110/3 jm-200 nt/rops...

  • Page 73

    Mahindra yueda (yancheng) tractor co.,ltd. Add. : 90# south wengang road yancheng city, jiangsu province : tel 0086-515-88231130/88231131 : fax 0086-515-88229791 : postcode 224002 : tttp //www.Jm-tractor.Com : e-mail tractorobd@yantuo.Cn.