KUBOTA B4200 COMPACT Tractor RC44 42 MOWER Workshop Service Manual

SPECIFICATIOI\JS 84200 WSM,60342-0 SPECIFICATIONS Model 842004WO P.T.O. power 7.5 kW (10.0 HP) Engine gross H.P. 9.3 kW (125 HP) Model Z600-A Type Vertical. water-cooled, 4-cycle diesel Number of cylinders 2 Bore and stroke 72 mm x 70 mm (2.76 In. x 2.83 In.) Total displacement 570 cm 3 (34.8 cu. In.) Rated revolution 43.3 rls (2600 rpm) Maximum torque (NET) 34.91 N·m, 3.56 kgf-m, 25.75 ft-lbl2000rpm Combustion chamber SpherICal type Fuel injection pump Boshch K type mini pump (NP-PFR2KD50/2NP3) Governor Centrifugal Ball MechanICal Governor Injection nozzle Throttle type (NO-ON 125012) Engine Injection timing 0.37 to 0.40 rad. (21 to 23 deg.) before TDC Injection order 1-2 Injection pressure 13.73 to 14.71 MPa (140 to 150 kgflcm2, 1991 to 2133 pSI) Compression ratio 22 Lubricating system Forced Lubrication by Rotor-type Pump Cooling system Water With pressurized radiator Starting system Electric starting with cell starter (12V, 0.8kW), glow plug and decompression deVICe ACdynamo 14V.10.4Amps 12V.35Ah Fuel Diesel fuel No. 2-0, No.1 diesel fuellbelow-1 O°C (15°F)j Lubricating oil MIL-L-461 52 or MIL-L-21 04C. API service CC or CD weight (Dry) 823 kg (181.4Ibs) Fuel tank 81 (8.5 U.S.qts .• 7.04Imp. qts.) Engine crankcase 2.31 (2.4 U.S.qts., 2.02 Imp. qts.) Engine coolant 31 (3.2 U.S.qts., 2.64Imp. qts.) Capacities Transmission case 8.51 (9.0 U5.qts., 7 .48Imp. qts.) Steering gear box 0.21 (0.2 U.S.qts .• 0.18 Imp. qts.) Front axle dlff. case 0.51 (0.5 U.S.qts .• 0.44 Imp. qts.) Front axle case 0.151 (0.16 U.S.qts .• 0.132 Imp. qts.) Front I Farm 4.50-10 Turf 20x8.00-10 Tires Rear 7-16 212/800-15 Overall length mm (in) 2215 (87.20) 2210 (87.01) 840 (3307) Overall width mm (In) 915 (36.02) 1010 (39.76) 980 (38.58) Overall height With muffler mm (in.) 1120 (4409) 1110 (43.70) Dimensions Wheel base mm (in.) 1230 (4843) 1230 (4843) Minimum ground clearance mm (in.) 220 (8.66) 210(827) Front mm (in.) 685 (2697) 785 (30.91) 640 (2520) Treads Rear mm (in.) 740 (29.13) 720 (2835) 805 (3169) Weight kg (Ibs) 420 (926) 430(948) PTO. shaft Transmission case (Rear P.T.O, Mid P.T.O.) and engine front (Front P.T.O.) Rear P.T.O. SAE 1-318.2 speeds (540 and 860 rpm at 2350 engine rpm) Mid PT.O 2563 rpm Clutch Dry single plate Steering Ball screw type TransmiSSion Gear shift. 6 forward and 2 reverse Minimum turning radius m (feet) 1.9 (6.2) Brake Internal expanding type, right and left independent with interlocking

84200 WSM,60342-0 DIMENSIONS DIMENSIONS N M C> \0 - ai !::1 Ci\ ~ - Ci\ ~ N C> on ~ '" !::1 0342F069 (3.98) (1.85) (1732) (2756) 101 47 440 - 700 (1004) 255 (48.43) 1230 (7303) 1855 0342F070 2

DIMENSIONS B4200 WSM,60342-0 (630) 160 (6.93) 176 6-M12x1.75 (2697) 685 (33.07) 840 0342F072 0342F071 3

64200 W5M,60342-0 DIMENSIONS Front P.T.O Detail Cock Drain 16 lower Member Radiator o 0 0 0 o 0 8 M10x 1.25 3 - M12 x 1.25 0342F073 P.T.O Flange Detail (Option Parts) 3-+9(-£) (~) 8 3 30x22 x 1.25 34 (1..!..!..) 32 18x22xO.75 0342F074 4

DIMENSIONS 84200 60342-0 (2}2) 64 61.5 (1..2.- ) ( 1..:2.) (~) (:2) 7 64 64 32 2B 315 17 (:2) 2.5 o N - (~) 64 Ml0x 1.25 I/>B.3 (Metric) Direction of R .... t",tir,n Clockwise from Rear Rear P.T.O Shaft Detail 0342F075 (0.32) B.2 0342F076 MID P.T.O Shaft Detail 5

84200 WSM,60342-0 S.G GENERAL m GENERAL [1] TRACTOR IDENTIFICATION When contacting your local KUBOTA distributor, always specify tractor serial number and hourmeter reading. [2] GENERAL PRECAUTION S.GOOF001 @ S.GOOF002 - .. S.GOOF003 A CAUTION • Be sure to check and service the tractor on a flat place with engine shut off and the parking brake on. • During disassembly, carefully arrange removed parts in a dean area to prevent confusion later. Bolts and nuts should be installed in their original position to prevent reassembly errors. • When special tools are required, use KUBOTA genuine special tools. Special tools which are not frequently used should be made according to the drawings provided. • Before disassembling or servicing electrical wires, always disconnect the ground cable from the battery first. • Remove oil and dirt from parts before measuring. • Use only KUBOTA genuine parts for parts replacement to maintain tractor performance and to assure safety. • Gaskets and O-rings must be replaced during reassembly. Apply grease to new O-rings or oil seals before assembling. See the figure below. • When reassembling external snap rings or internal snap rings, they must be positioned so that sharp edge faces against the direction from which a force is applied. See the figure below • When inserting spring pins, their splits must face the direction from which a force is applied. See the figure below. • To prevent damage to the hydraulic system, use only specified fluid or equivalent. (1) Grease (2) External Snap Ring (3) Internal Snap Ring (4) Sharp Edge against the Direction of Force (5) Axial Force (6) Rotating Movement S.G-1

S.G GENERAL 84200 WSM,60342-O [3] LUBRICANTS Place Capacity lubricants • Engine oil: API Service CC or CO 2.31 Below 0° (32°F) SAE 1 OW or 10W-30 Engine crankcase 2.4 U.S. qts. oto 25°C (32 to 77°F) SAE20 or 10W-30 2.02 Imp. qts. Above 25°C (77°F) SAE30 or 10W-30 • Multi-grade transmission fluid. The fluid listed below or equivalent are recommended. Maker Brand Name KUBOTA UOT Hydraulic Transmission Fluid Atlantic Richfield Arco Tractor Fluid 8.51 (Arco) Transmission 9.0 U.S. qts. Chevron Tractor Hydraulic Fluid 7.48 Imp. qts. Exxon Torque Fluid 56 Penzoil Hydra-Trans and Wet Br. Phillips H.T. Fluid Shell Oonax TO, TT, TM Texaco T.O.H. Oil Union Hydraulic/Tractor Fluid Gulf Universal Fluid 425, 350 Mobil Mobil Fluid 423, 350 0.51 Front axle differential case 0.5 U.S. qts. • Gear oil SAE80 or SAE90 0.44 Imp. qts. 0.151 Front axle gear case (Right & left) 0.15 U.S. qts. • Gear oil SAE80 or SAE90 0.132 Imp. qts. 0.21 Steering gear box (Manual 0.2 U.S. qts. • Gear oil SAE80 or SAE90 steering) 0.18 Imp. qts. Pedal shaft Clutch release hub Moderate amount • SAE mUlti-purpose type grease Seat adjuster S.G-2

B4200 WSM.60342-0 S.G GENERAL [4] TIGHTENING TORQUES Screws, bolts and nuts whose tightening torques are not specified in the Workshop Manual should be tightened according to the table below. Grade No-grade 7T 9T S43C.S48C SCr435, SCM435 SS41,S20C (Quenched and Tempered) (Quenched and Tempered) Nominal Unit Diameter N·m kgf·m ft-Ibs N·m kgf·m ft-Ibs N·m kgf.m ft-Ibs M6 7.84 0.80 5.79 980 100 7.24 12.3 1.25 9.05 ( 6 mm, 0.24 in.) to to to to to to to to to 9.31 0.95 6.87 11.2 1.15 8.32 14.2 145 10.5 M8 17.7 1.8 130 23.6 24 17.4 29.4 3.0 21.7 (8 mm, 0.31 in.) to to to to to to to to to 20.6 2.1 15.2 27.4 2.8 20.2 34.3 3.5 25.3 M10 39.2 4.0 29.0 48.1 4.9 35.5 60.8 6.2 44.9 (10 mm, 0.39 in.) to to to to to to to to to 45.0 4.6 33.2 55.8 5.7 41.2 70.5 7.2 52.1 M12 62.8 6.4 46.3 77.5 7.9 57.2 103 10.5 76.0 (12 mm, 0.47 in.) to to to to to to to to to 72.5 7.4 535 90.1 9.2 66.5 117 12.0 868 M14 108 11.0 79.6 124 12.6 91.2 167 17.0 123 (14 mm, 0.55 in.) to to to to to to to to to 125 12.8 92.5 147 15.0 108 196 20.0 144 M16 167 17.0 123 196 20.0 145 260 26.5 192 (16mm, 0.63 in.) to to to to to to to to to 191 19.5 141 225 23.0 166 303 31.0 224 M18 245 25.0 181 275 28.0 203 343 35.0 254 (18 mm, 0.71 in.) to to to to to to to to to 284 29.0 210 318 32.5 235 401 41.0 297 M20 334 34.0 246 368 37.5 272 490 50.0 362 to to to to to to to to to (20mm, 0.79 in.) 392 40.0 289 431 44.0 318 568 58.0 420 * Figures in parentheses must be selected when the material of the mating thread is aluminum. S.G-3

S.G GENERAL B4200 WSM.60342-O [5] MAINTENANCE CH ECK LIST Reference Frequency of Checks Check Points Page Initial operation During this period, pay special attention to the following (initial 60 hours) • After the initial 35 hours of use, change the engine oil and oil S.G-5 filter cartridge • After the initial 50 hours of use, change the transmission fluid S.G-6 and dean the transmission strainer • Quick starts or sudden braking should be avoided - Every 75 hours Change engine oil S.G-5 Every 100 hours Lubricate the following point. • Pedal shaft. S.G-7 • Clutch release hub S.G-7 Check the following points to be connected securely Hydraulic inlet pipe clamps, Fuel line damps Clean air cleaner element S.G-8 Clean fuel filter S.G-8 Check battery electrolyte level S.G-7 Check fuel line S.G-9 Check fan drive belt tension S.G-7 Check clutch play S.G-9 Check brake play S.G-9 Check steering wheel play S.G-l0 Every 150 hours Change engine oil filter cartridge S.G-l0 Check radiator hose S.G-l0 Every 300 hours Change transmission fluid S.G-l0,11 Transmission case, front axle differential case, front axle gear case (right and left) • Clean transmission strainer Every 400 hours Change fuel filter S.G-ll Every 500 hours Clean cooling system S.G-l1 S.G-l1 months Recharge battery if necessary Everyone to two Change scale inhibitor and coolant S.G-12 Every 3 months S.G-12 times of deaning Change air cleaner element Every year or every 6 S.G-12 Change anti-freeze and coolant Every year S.G-13 Change radiator hose and clamps, if necessary Change battery, if necessary Every 2 years S.G-13 Change fuel line and clamps, if necessary S.G-13 S.G-4

84200 WSM,60342·0 S.G GENERAL [6] CHECK AND MAINTENANCE (1) Check Points of Initial 35 Hours :==\\ ~~~\ ~ ~Ii~ ~:9 (9 -- ----- Changing Engine Oil .A CAUTION • Before changing the oil, be sure to stop the engine. 1. To change the used oil, remove the drain plug at the bottom of the engine and drain the oil completely. All the used oil can be drained out easily when the engine is still warm. 2. Reinstall the drain plug. 3. Fill with the new oil up to the upper notch on the dipstick. Checking Oil Level, Replenishing Oil 1. Check engine oil before starting the engine or 5 minutes or more after the engine has stopped. 2. To check the oil level, remove the dipstick, wipe it clean, replace it, and remove it again. Check that the oil level is between the two notches. 3. If the level is too low, add new oil to the recommended level. 4. When using an oil of different manufacturer or viscosity from the previous one, remove all of the old oil. Never mix two different types of oil. 5. Use the proper SAE Engine Oil according to the air temperatures. Refer to "LUBRICANTS". (See page S.G-2) Replacing Engine Oil Filter Cartridge A CAUTION • Be sure to stop the engine before changing the oil filter cartridge. 1. The oil filter cartridge must be changed every 150 service hours. 2. Apply a slight coat of oil onto the cartridge gasket. 3. To install the new cartridge, screw it in by hand. Over tightening may cause deformation of rubber gasket. 4. After the new cartridge has been replaced, the engine oil normally decreases a little. necessary . Check for leaks and refill if • IMPORTANT • To prevent serious damage to the engine. replacement element must be of high quality. Use only a genuine KUBOTA filter or its equivalent. S.G-5

KUBOTA B4200 COMPACT Tractor RC44 42 MOWER Workshop Service Manual

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