Belarus 1021 Operating Manual Download Page 208

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-1021/1021.3 Operating manual

207

Figure B1, Sheet 1 — Electric circuit diagram of BELARUS-1021/1021.3 tractors

Basic option

spark plug unit

turn indicator breaker

instrumentation
power supply
relay switch

Heater lock
relay switch

starter lock relay

switch

starter relay

spark plug unit

upper beam relay

switch

lower beam relay

switch

Summary of Contents for 1021

Page 1: ...BELARUS 1021 1021 3 1021 0000010 OM OPERATING MANUAL Minsk Tractor Works 2010 ...

Page 2: ...iffer from those actually installed on your tractor Overall dimensions and values of mass are approximate for reference purpose only You can obtain more detailed information from your dealer of trade mark BELARUS _______________________________________________________________________ Minsk Tractor Works RUE 2010 All rights reserved No part of this manual may be reproduced in any form whatsoever wi...

Page 3: ...ning on compressor drive 38 3 13 Changing steering wheel position 39 3 14 Tractor pedals engine stop lever engine cooling system shutter control 40 3 15 Ground switch fuel supply control lever parkingbrake control 41 3 16 Cabheater control 42 3 17Cab air conditioning and heating system control 43 3 18 Seat and its adjustment 44 4 OPERATING INSTRUCTION 46 4 1 Preparation of tractor to work 46 4 4 2...

Page 4: ...ic system pressure regulator 69 5 9 Clutch adjustments 70 5 9 1 General information 70 5 9 2 Mounting removing and adjusting clutch release levers 71 5 10 Tachometer speedometer programming 72 5 10 1 Tachometer speedometer control panel 72 5 10 2 Procedure of programming electric tachometer speedometer AR70 3813 72 5 10 3Procedure of programming integrated display KD8083 74 5 10 4 Installing and a...

Page 5: ...13 1 Security requirements for driving tractor in MTU on public roads and during transport operations 118 6 13 2 Safety precautions for intended use of tractor and machines in MTU 119 6 13 3 Safety requirements for unitizing tractor with mounted and semi mounted machines 120 6 13 4 Safety requirements for unitizing tractor with trailed and semi trailed machines 121 6 13 5 Safety requirements for u...

Page 6: ...ance after each 2 000 service hours 186 8 4 7General maintenance 190 8 5 Seasonal maintenance 191 8 6 Maintenance of tractor in special conditions of use 191 8 7 Refilling and lubrication of tractorwith fuels and lubricants 192 9 STORAGE OF TRACTOR 197 9 1General instructions 197 9 2 Requirements to inter shift storage of machines 198 9 3 Requirements to short time storage of machines 198 9 4 Requ...

Page 7: ...agricultural machinery and are delivered to consumers in the Republic of Belarus and abroad Main features of BELARUS 1021 1021 3 tractors synchronized gearbox 7 2 and synchronized multiplier speed increaser allowing to obtain 14 forward gears and 4 reverse gears On demand a speed reducer or a hydraulic speed reducer can be installed expanding the scope of use of the tractor improved stiffness and ...

Page 8: ...eed reducer STM shift time maintenance SPA spare parts tools and accessories RA rear axle RHL rear hitch linkage ID integrated display MFE master filter element of the diesel engine air cleaner GB gearbox MD multifunction display MTU machine tractor unit C clutch MCG mechanical speed reducer CL coolant liquid SP spark plugs M maintenance TC towing coupler FDA front driving axle PC integrated displ...

Page 9: ...harging coolant interior lamp start preheater clearance lights diesel engine speed tractor turn signal diesel engine oil pressure tractor trailer turn signal diesel engine coolant temperature upper beam off stop lower beam on start working headlights continuous adjustment by moving differential lock lever down power take off shaft lever up front driving axle drive remote power cylinder retraction ...

Page 10: ... Operating manual 9 remote power cylinder equilibrium windshield wiper GB oil pressure rear window wiper pneumatic system air pressure HSU oil pressure air filter clogging coolant level in main cylinder tanks engine stop ...

Page 11: ...the position of the I st or II nd range with two lever control shift the range change lever to the position of the I st or II nd range and shift the gear change lever to the Neutral position 1 2 2 Before you begin the movement horn to warn other people being around and working on trailed machines 1 2 3 Do not abandon the tractor during movement 1 2 4 Before leaving the cab turn off the PTO stop th...

Page 12: ... tow trailers and semitrailers with no safety chains do not leave the tractor on slopes If necessary engage the first gear and tighten the parking brake do not operate the tractor with a weakened fastening of the TC and RHL as this can result in a traffic accident 1 2 19 When working with equipment driven from the PTO stop the engine and make sure that the PTO shaft completely stops before getting...

Page 13: ...ries as the electrolyte in case of skin contact causes burns 1 3 10 To avoid hazard of explosion keep open flames away from the fuel system of the engine and the batteries 1 3 11 Maintain the tractor and its equipment especially brakes and steering in operable condition to ensure your safety and the safety of the people being nearby 1 3 12 Do not change or modify the design of the tractor or its p...

Page 14: ...half axles mm 2 250 20 2 250 20 Height by cab mm 2 840 20 2 840 20 Base mm 2 445 20 2 445 20 Front track mm See5 1Settingfront wheel track See5 1Settingfront wheel track Rear track mm 1 600 2 400 1 600 2 400 Road clearance mm 450 450 Service weight kg 4 635 100 4 675 100 2 2 Tractor part numbers The tractor nameplate with the serial numbers of the tractor and the diesel engine mounted on the left ...

Page 15: ...e side member The serial number of the engine is duplicated on the nameplate attached to the cylinder block on the left An example of thenameplate for the BELARUS 1021 tractor The engine turbo charger number The clutch number on the clutch housing on the left The gearbox number on the GB housing on the left ...

Page 16: ...BELARUS 1021 1021 3 Operating manual 15 The transmission number Front driving axle number Cab serial number ...

Page 17: ...ofcylinder mm 110 110 Piston stroke mm 125 125 Displacement volume l 4 75 4 75 Firing order 1 3 4 2 1 3 4 2 Air supply turbocharged turbocharged Cooling system liquid liquid Rated speed rpm 2 200 2 200 Maximum idle speed max rpm 2 380 2 420 Minimum stable idle speed max rpm 700 600 50 800 50 Rated power kW HP 77 79 81 Maximum torque Nm kg force m 384 392 440 Rated advance angle of fuel injection t...

Page 18: ... Start system of D 245 D 245S diesel engines Electric starter 24 V 12 V on request Starting aid start preheater at air intake manifold Start system of D 245S2 diesel engine Electric starter 24 V Starting aid spark plugs Cooling system of D 245 D 245S D 245S2 diesel engines Type liquid closed with forced circulation of coolant Temperature is controled by thermostat Normal operating temperature from...

Page 19: ...nual 18 Gearbox Type mechanical synchronized with multiplier accelerator at input Gears 14 forward 4 reverse The figures below present charts of tractor speeds on standard tires with single lever and two lever GB control respectively ...

Page 20: ... 23 Overdrive 37 45 forward 4 II Direct 28 32 Overdrive 7 26 1 69 5 03 7 05 20 94 1R I Direct 5 49 1 28 3 80 5 33 15 84 Overdrive 12 36 2 88 8 56 12 01 35 66 1 reverse 2R II Direct 9 35 2 18 6 47 9 08 26 97 1 ________________________________________________________________________________________________________________________________________________________________ 1 Do not engage Rear axle Main...

Page 21: ...ISO 500 for 1 000 rpm 21 slots according to GOST 3480 and ISO 500 Direction of rotation clockwise when viewed from the shaft end Hydraulic lift linkage HLL Type remote cylinder type with open center Maximum pressure in the hydraulic system from 18 5 20 MPa Distributor section type 3 valve with a spring loaded neutral with a fixed floating position forced lowering and lifting Low force on the lever...

Page 22: ...r equipment windshield and rear window wipers windshield washer cab lamp Instrumentation instrument cluster electrictachometer speedometer indicator lamp blocks Connectionforelectricity consumers multipincombinedsocket Cab The cab is unified protective ensuring safety microclimate noise and vibration protection The cab is equipped with front windscreen and rear visor vipers and a windscreen washer...

Page 23: ... and fan switch 12 Rear operating headlight switch 13 Front operating headlight switch 14 Roadtrain sign lamp switch if roadtrain sign lamps are installed 15 Cab lamp with switch 16 Hydraulic system side outlet control 17 Hydraulic system right side outlet control 18 Hydraulic system left side outlet control 19 Tachometer speedometer control panel 20 Starter and instrument switch 20 SB remote disc...

Page 24: ...ver 36 Rear axle differential lock switch 37 PTO switch 38 PTO button 39 Hydraulic lift draft control lever 40 Hydraulic lift position control lever 41 Position control adjustable stop 42 Fuel control lever 43 Ground disconnect switch only on BELARUS 1021 44 Speed reducer gear shifter if installed 45 Speed reducer range shift rod if installed With two lever GB control ranges and gears are shifted ...

Page 25: ...t switch Instrument cluster The instrument cluster option 1 and option 2 includes five indicators with five pilot lights Option 1 Option 2 1 fuel tank level indicator 1 1 fuel reserve level alarm lamp 2 pneumatic system air pressure indicator 2 1 low pressure alarm lamp of pneumatic system 3 voltage indicator 3 1 additional battery charging pilot lamp 4 diesel engine coolant temperature indicator ...

Page 26: ...m condition Feed system condition Zone at voltage indicator scale 3 color when engine is running when engine is off 13 0 15 0 V Green normal charging mode 10 0 12 0 V red generator not operating battery discharged 12 0 13 0 V Yellow no SB charging low charging voltage SB has normal charging 15 0 16 0 V Red SB recharged white hairline in yellow zone rated generated voltage battery 12 7 V Attention ...

Page 27: ...ator 9 shows the numbers 02 07 instead of the speed read out and after 12 seconds the figure 0 on the left side there is no signal from the left speed sensor Correct the fault The digital display has no speed readout at that To restore the speed readout correct the above faults The electrical system high voltage alarm 5 of the tractor goes on when the electrical system supply voltage is 18 to 19 V...

Page 28: ...o speed readout at that To restore the speed readout correct the above faults The tractor electric system high voltage alarm goes on when the voltage exceeds 18 5 V At that the indicator KD 8083 goes off as the protection operates When the voltage drops to 16 5 V the display returns to the operation status and the high voltage alarm goes off Attention The manufacturer has programmed the KD 8083 in...

Page 29: ...ument switch key Remote ground switch key Only on BELARUS 1021 3 When they key 5 is pressed unfixed position the SB ground switch is actuated remotely When pressed again it s off On the BELARUS 1021 tractors this place is plugged the SB ground is switched on and off by pressing the button 43 see Figure on page 23 Understeering multifunction switch The understeering multifunction switch 6 ensures t...

Page 30: ...ng headlight switch When the key 3 is pressed the rear operating headlights and the light indicator built into the key are switched on Front operating headlight switch When the key 4 is pressed the front operating headlights and the light indicator built into the key are switched on Roadtrain sign lamp switch When the key 5 is pressed three orange lamps installed on the front of the cab roof and t...

Page 31: ...dicator lamp orange is intended to indicate readiness of the engine for start For BELARUS 1021 tractors a SPH indicator For BELARUS 1021 3 tractors a spark plug indicator For details see Operating instruction 6 HSU emergency oil pressure indicator lamp red The lamp goes on when the HSU hydraulic system oil pressure drops below 0 08 MPa 7 Reserve 8 Headlight upper beam indicator lamp blue The lamp ...

Page 32: ...rol for BELARUS 1025 3 tractors if an air conditioner is installed on request instead of the heater 25 A 11 Left clearance lamps 7 5 A 12 Right clearance lamps and instrument panel illumination 15 A 13 Right headlight lower beam 7 5 A 14 Left headlight lower beam 7 5 A 15 Instruments and speed sensors power supply 7 5 A 16 Turn indicators relay switch for tractors BELARUS 1025 3 also power supply ...

Page 33: ...a standard seven pin socket is used Mounted on the rear cab support To the socket the plug of the wire harness of the linked machines is connected Socket terminal labeling 1 Lever turn indicator 2 Horn 3 Ground 4 Right turn indicator 5 Right clearance lamp 6 Stop signal 7 Left clearance lamp 8 Connecting a portable lamp and other consumers with a current load up to 8 A ...

Page 34: ...ON position forward slow gear L or backward overdrive gear H Note The multiplier accelerator lever is fixed in its extreme positions The multiplier lever can be shifted to its neutral position to facilitate start of the engine during cold season Your tractor can be equipped with two lever GB control Ranges and gears are shifted by individual levers 1 and 2 as shown on the charts on the left side f...

Page 35: ...l middle position 3 7Front driving axle control The control lever 1 has three fixed positions FDA off full forward position Use on the vehicle when driving on hard surface roads in order to avoid increased wear of tires FDA on off automatically middle position In this mode the FDA is automatically engaged and disengaged with a freewheeling clutch depending on rear wheel slipping Use when performin...

Page 36: ...tomatically when the upper part of the key 1 is pressed Fixed position Used when performing operations with significant rear wheel slip In automatic mode the rear wheels are blocked during rectilinear motion but when the wheel guides are turned to an angle exceeding 13 in any direction become unblocked forced DL ON when the lower part of the key is pressed Non fixed position Used for short term lo...

Page 37: ...be in the middle position Turn on the required PTO drive as follows a independent drive start the engine and set the minimum steady speed move the lever 3 to the uppermost position b synchronousdrive start the engine and set the minimum steady speed press the clutch pedal and engage the 1st gear slowly releasing the clutch simultaneously move the lever 3 to the lowermost position 2 speed independe...

Page 38: ...atically returns to the Neutral position Forced lowering upper middle non fixed position between the Floating and Neutral positions In the forced lowering position hold the lever by hand when released the lever automatically returns to the Neutral position Floating upper fixed position The hydraulic system lever control chart is shown in Figure on the right as well as on the nameplate in the cab c...

Page 39: ...f the implement above the ground Maximum implement lifting height by the handle 2 is limited by the adjustable stop 3 Important Mixed control is carried out by limiting the depth of implement penetration by the handle 2 when working in the draft control mode 3 12 Turning on compressor drive The pneumatic system compressor handle 1 see Figure at the right has two positions left arrow on the handle ...

Page 40: ...nt range of the steering wheel height is 100 mm The steering column can be tilted and fixed in four positions from 25 to 40 with a 5 step To tilt the steering column pull the lever 1 tilt the steering column to a convenient working position and releasing the lever 1 gently sway the steering column in the longitudinal direction until it fixes securely With the steering column fixed in its full forw...

Page 41: ...ed simultaneously when the pedal 5 is pressed the brake valve of the trailer brake pneumatic drive operates Note if the parking brake control lever linkage is located under operator s left arm the trailer pneumatic drive brake valve operates when the left brake pedal 3 is pressed The brake pedal connection plate 4 is designed for simultaneous action of the right and left brakes Fuel control pedal ...

Page 42: ...nding to the minimum idle speed Parking brake control lever option with the location under operator s right hand The uppermost position of the lever 1 the parking brake engaged The lowermost position of the lever the parking brake disengaged To disengage the parking brake press the A button on the control lever and push the lever down until it stops Figure on the left shows the parking brake contr...

Page 43: ...up The coolant level in the heat exchanger of the engine cooling system will drop at that 2 Add coolant to the engine cooling system heat exchanger to the required level 50 to 60 below the filler neck upper edge 3 Switch on the heater fan with the switch 3 and direct the air flow with the air distributors 4 4 By opening the recirculation shutters 2 the amount of fresh air entering the cabin can be...

Page 44: ...to prevent simultaneous operation of the air heating and cooling systems Climate system control in heating mode Attention refill the engine cooling system only with an antifreeze agent For efficient operation of the heating system observe the following recommendations 1 After refilling the cooling system with antifreeze agent start the engine and without opening the valve let the engine work at me...

Page 45: ... and by reciprocating linear motion release the springs seat back tilt adjustment from minus 15 to 20 for 80 6800000 seat Performed by the knob 3 To increase the seat back tilt turn the knob clockwise to decrease turn it counter clockwise seat back tilt adjustment from 5 to 25 for 80V 6800000 seat Performed by the lever 3 Lift the lever up until it stops tilt the back and release the lever The bac...

Page 46: ...red position longitudinal seat adjustment within 75 mm from its middle position Performed by the knob 1 To move the seat back and forth pull the handle up move the seat and then release the handle The seat automatically locks into the required position height adjustment from 0 to 60 mm The seat has three positions by height lower middle and upper To transfer the seat from the lower position to the...

Page 47: ...essure of tires toe in 6 Check and tighten up as necessary external threaded connections 7 Fill coolant into the cooling unit radiator 8 Listen to the engine operation and check the readings of instruments for compliance with the established standards 4 1 2 Running in of tractor When performing a 30 hour running in follow these instructions 1 Constantly watch the readings of the instruments operat...

Page 48: ...FDA final drive housing FDA wheel reduction gear housings intermediate support 8 Change the oil filter of the diesel engine 9 Check and tighten up as necessary the bolts fastening the cylinder head Check clearances between the engine valves and rockers 10 Check and if necessary restore tightness of all connections of the air cleaner and the engine air inlet 11 Check and tighten up as necessary thr...

Page 49: ...nd range release the clutch pedal with two lever control pressing the clutch pedal shift the range change lever to the position of the I st or II nd range and shift the gear change lever to the Neutral position release the clutch 7 Switch on the disconnect switch 8 Turn the starter and instrument key to the position I Instruments ON a fixed position At that in the pilot lamp unit the HSU emergency...

Page 50: ...introduced to the electric circuit The operator selects the operating mode of the spark plug unit according to the engine or environment temperatures The following operating and diagnostic modes of the spark plugs are possible 1 Starting the engine without switching on the spark plugs this mode is described in 4 2 2 above 2 Starting the engine with switching on the spark plugs this mode is describ...

Page 51: ...ne emergency oil pressure goes on buzzer heard as well as the emergency air pressure lamp if it is below the allowable the second storage battery pilot lamp the fuel reserve pilot lamp if the fuel in the tanks is at the reserve level 12 Press the SPH switch key At that in the pilot lamp unit the SPH pilot lamp goes on indicating that the SPH spiral switches on and warms up As soon as the SPH pilot...

Page 52: ...o the position I At that on the pilot lamp unit the spark plug pilot lamp goes on and glows continuously which indicates that the spark plugs are on when the SP pilot lamp switches from continuous glowing to flashing at the frequency of 1 Hz start the engine by pressing the clutch pedal and turning the starter and instrument key from the position I instruments on to II engine start when there is n...

Page 53: ...s set the required multiplier gear To switch from the higher gear of the multiplier to the lower one push the multiplier shifter lever 2 forward according to the multiplier shift chart To switch from the lower gear to the higher one pull it back disengage the parking brake smoothly release the clutch pedal simultaneously increasing diesel fuel supply and the tractor starts moving Shifting the GB w...

Page 54: ...ump driven from the diesel engine crankshaft does not power the hydraulic steering system and it automatically switches to the manual mode which requires a greater force on the steering wheel to turn the tractor 4 7 Power takeoff shaft PTO Attention At a speed of the shaft end of 540 rpm power take off through the PTO shaft must not exceed 60 kW To avoid shock loads engage the PTO at an engine spe...

Page 55: ...e the clutch pedal If necessary increase fuel supply 7 Adjust the tractor speed by changing the fuel supply Switching speed reducer gears 1 Set the engine minimum idle speed 2 Press the clutch pedal 3 Wait for 5 10 s and shift the GB shifter lever to the neutral position 4 Set the required speed reducer gear in accordance with the chart in the speed reducer operating manual 5 Set the required spee...

Page 56: ... not let reach a constant tillage depth increase in depth over a set value should be limited with position control Operation of a tractor equipped with a HLL with a hydraulic lift A HLL with a hydraulic lift is controlled by two handles located in the cab on the right control panel the draft control handle 2 the position control handle 3 Position control 1 Shift the draft control handle 2 to its f...

Page 57: ...andard Table Changing front wheel track Tractor rack K mm 360 70R24 tire Variants of disk and rim installation Disk offset X mm Short beam Long beam Method of installation 140 1 415 1 535 Main position The disc mated with its inner surface to the reducer flange and is situated on the outer side of the wheel support 90 1 515 1 635 As delivered from the factory The rim is transposed relative to the ...

Page 58: ...e tractor using the parking brake Put stops before and after the rear wheels jack up the front of the tractor or the front wheels in turn providing a clearance between the wheels and the ground remove the front wheels unscrew the nuts fastening the wheel disk to the reducer flange to obtain a track by turning the wheel from side to side unscrew the nuts fastening the wheel rim to the disk dependin...

Page 59: ...ads on tires to choose mode at various internal pressures in 6 10 of 6 UNITIZING on a flat site drive the tractor forward at least 3 meters and stop Engage the parking brake measure the distance B between two opposite points on the rim flange behind the front axle at the height of the wheel axle move the tractor forward so that the front wheels turn by about 180 then measure the distance A in fron...

Page 60: ...o determine the track by measuring the size K from the semi axle end to the liner end 6 Remove the extracting bolts and tighten up the bolts fastening the hub 7 Install the wheel and repeat the operation for the opposite rear wheel 1 nut 2 tie bolt 3 liner Patter of setting rear wheel track Table Setting rear wheel track for tires 16 9R38 Track L mm Distance K mm Wheel installation pattern for tir...

Page 61: ...ke clearance 1 cylinder 2 rod 3 lever Fig 5 5 1 Checking wear of PTO brake band linings 5 5 2 Adjusting clearance in PTO belt brakes Attention Adjust the PTO belt brake clearance only in a special workshop Adjust the clearance in the PTO belt brakes as follows shift the lever 1 Fig 5 5 2 to its neutral position aligning the holes in the lever and the rear axle housing with an 8 mm rod or a M10 60 ...

Page 62: ... the locking plate 3 and the bolt 4 The procedure of readjustment is as follows If the clearances in the belt brakes are adjusted but the PTO does not transfer the full torque then there is no margin for adjustment significant wear of belts brake linings In this case proceed as follows remove the locking plate 3 Fig 5 5 2 unscrew the bolts 6 by 5 7 turns turn the eccentric shaft 5 of the external ...

Page 63: ...align the nut slots with the holes for the cotter pin it is allowed to increase the tightening torque of the nut 1 11 shims 2 5 6 tapered roller bearing 3 differential 4 driven pinion 7 driving pinion flange 8 nut 9 adjusting washers 10 driving pinion 12 filler cap Fig 5 6 1 FDA adjustments 5 6 1 2 Checking and adjusting preload in differential tapered bearings The differential bearing preload mus...

Page 64: ...ousing The drive pinion must have no axial play Worn pinions are replaced only in pairs Do not replace only one pinion since pinions are produced by the manufacturer in pairs 5 6 3 Mesh contact pattern Adjust using the shims 11 Figure 5 6 1 to move the driving pinion 10 or the shims 1 to move the driven pinion 4 in accordance with the table below The engagement of the teeth contact pattern must be...

Page 65: ...tening the axles to a torque of 180 to 200 N m make the tightening crosswise with mandatory cranking of the wheel reduction gear re check the preload in the pivot bearings by checking the force of turning the reducer in both directions do the same for the second wheel reducer At a turn force of less than 30 N before adjusting the preload in the bearings unmount the bottom axle 9 Figure 5 6 2 and c...

Page 66: ... found adjust the bearings as follows unscrewing the bolts remove the cover of the nut 10 Figure 5 6 2 tighten the nut to a torque of 180 to 200 N m then unscrew to an angle of 15 200 When tightening the nut turn the flange 13 so that the bearing rollers take correct positions in the races after adjustment unstake the nut pilot in two slots of the flange Angular displacement of the nut is not perm...

Page 67: ... the tooth type coupling is engaged with the outer and inner freewheeling clutch holders turning the fork 2 adjust the length of the rod 4 so that the finger freely enter into the holes of the fork and the lever 8 turned clockwise until it stops tighten up the locknut install the finger and cotter it Pattern of adjustment of FDA drive transfer case control linkage in case of single lever GB contro...

Page 68: ...pling head must be 0 77 MPa or higher If it is lower than specified proceed as follows check availability of the clearance A between the finger 5 Figure 5 7 1 and the upper edge of the grooves in the arms 6 and 7 The clearance must be 1 to 2 mm If there is no clearance remove the cotter pin and remove the finger 5 and adjust the length of the arm by turning the end 4 check and adjust as necessary ...

Page 69: ... there is no clearance remove the cotter pin and remove the finger 5 and adjust the length of the arm by turning the end 4 check and adjust as necessary precompression of the spring 3 to a size of 36 38 mm by rotating the nuts 2 then lock the nuts Adjust the spring precompression so that when you press the service brake pedal or engage the parking brake first the brake valve rod moves until it sto...

Page 70: ...e the cap 1 Figure 5 8 1 using a wrench screw in the cover 2 into the body up to stop turn on the compressor start the engine and fill the cylinder with compressed until the safety valve 6 operates at a pressure of 0 85 to 1 MPa If the valve operates at a pressure of less than 0 85 MPa or more than 1 MPa adjust it using the screw 8 first loosening and then tightening up the nut 7 Adjust the pneuma...

Page 71: ...7 linked with the PTO drive shaft 4 and the backing plate 10 elastic elements are installed The clutch is engaged and disengaged by the shifter 16 with the release bearing 14 moving on the bracket 15 The shifter fork 17 with the roller 18 are connected through the rod with the clutch pedal The release bearing 14 is lubricated through the grease cup screwed into the shifter journal 1 flywheel 2 dri...

Page 72: ...nd the pressing 3 onto the flywheel fingers with hubs 10 fasten with the nuts to a torque from 70 to 90 N m 3 Install the auxiliary snap Figure 5 9 3 and unscrew the auxiliary bolts 4 Adjust the position of the release levers 5 1 flywheel 2 driven plate 3 pressure plate 4 hub 5 release lever 6 backing plate 7 locking plates 8 adjusting nuts 9 fork 10 hub Fig 5 9 2 Mounting removing and adjusting c...

Page 73: ...ton 1 Figure 5 10 1 of the panel this will switch the tachometer speedometer display to the mode of tractor unit parameter readout repeatedly pressing the panel button 1 cycles through the programmed parameters Z R D T and then again Z to enter the required value for the selected parameter press the panel button 2 Figure 5 10 1 this will cyclically change the fixed values of the parameters Z D For...

Page 74: ... takes into account the gear ratio of the alternator drive from the crankshaft the gear ratio of the PTO shaft end parameter to display the engine and PTO speeds Note for BELARUS 1021 1021 3 tractors the PTO sensor is not installed the signal for indicating the PTO and engine speeds is the signal from the alternator phase winding T parameter Precise astronomical service hours This parameter is dis...

Page 75: ...gital display will start flashing using the panel button 2 set the required value of the second digit from right of the adjusted parameter briefly press the panel button 1 at that the third digit from right of the digital display will start flashing using the panel button 2 set the required value of the third digit from right of the adjusted parameter fix the entered setting of the parameter by pr...

Page 76: ...ter R is the rear axle rolling radius mm When reprogramming this parameter can be modified with a 5 mm step Note 800 is the value for tires 16 9R38 If 11 2R42 tires are installed set the value to 750 If other tire types are installed set the R value corresponding to the rolling radius of the installed tires Z1 parameter Number of pinion teeth in the point of speed sensor installation parameter for...

Page 77: ...oth against the installation hole for the sensor 2 measure the size H on the surface of the cover 1 to the addendum of the tooth select and install the required number of spacers to set the clearance S corresponding to the measured value of H see table below put the ground wire 4 under any of the bolts 3 secure the bolts 3 with a sealant and tighten up Adjusting speed sensors H mm Qty of shims 5 S...

Page 78: ...fications by mounting dimensions by allowable loads by possibility to provide travel with the required service speed by power take off value by compliance of the tractor s tractive force and drought resistances of unitized machines Operating equipment of the tractor for unitizing BELARUS tractors are equipped with the following working equipment for unitizing HL TC PTO hydraulic outputs air gage h...

Page 79: ...w granting the right to drive the tractor and are allowed to work on a particular tractor Owners as well as officials and other persons responsible for the technical condition and operation of the tractor are prohibited to let the tractor participate in road traffic and be unitized with machines are prohibited to allow tractor drivers drive the tractor in violation of the applicable traffic rules ...

Page 80: ...gh the PTO shaft and free hydraulic outputs of the tractor A particular example of a towed unit is a transport MTU By the number of machines in the MTU single and multiple machine A machine that performs several working operations use of the process modules of which as of separate technical tools is not provided is deemed one machine By position of the implements relative to the longitudinal plane...

Page 81: ...er rod The machine weight in the transport position is partially borne by the tractor and mostly by own road wheels usually two or more When transferring the machine from working to transport position the point of junction of the machine with the tractor does not change its position To semi trailed machines also various general purpose and special transportation tools belong such as general purpos...

Page 82: ...greeing of unitizing of mounted trailed semi mounted and semi mounted agricultural machines is the recommended procedure 6 3 Recommendations on selection of agricultural machines for unitizing Selection and purchase of agricultural machinery to the tractor is performed by the consumer independently according to his needs taking into account the specifications of the machine and the tractor as well...

Page 83: ... agrotechnical clearance track tire width direction of working path operating weight method of unitizing vertical load on the connecting device draught resistance and energy consumption of the working machines tractive characteristics and power of the tractor When selecting machines pay particular attention to variable characteristics of the operating conditions of agricultural machines in the fie...

Page 84: ...stage Checking assemblability Evaluate constructive linkage of the connected elements of the tractor towing couplers mounted three point devices hydraulic electric connections pneumatic head PTO shaft ends with the corresponding elements of the machine including correspondence of the wheel track and size and the process requirements of the work performed location of the PTO PTRI and driveshaft of ...

Page 85: ...icient length and areas of free space of the driveshaft at turns and when transferring the machine to the transport position Sixth stage Assessment of correspondence of power capabilities of the tractor and the requirements of the machine draught resistance power consumption including through the PTO It is possible to asses by calculation when the source data are available or on the basis of a tes...

Page 86: ...rd installation of the disk with permutation of the rim A B C D permutation of the disk and the rim The wheel position in the positions C and D should only be used in exceptional cases Fig 6 5 1 Patters of setting track for 360 70R24 tires Track options for short beam axle Position of wheels Track K mm A 1 415 C 1 515 1 1 735 E 1 835 1 585 1 685 1 900 D 2 000 ______________________________________...

Page 87: ..._____________________________________________________________ 1 Changing the track by n corresponds to changing the hub position by n 2 from each side Fig 6 5 2 Adjusting rear wheel track 6 5 3 Pairing rear wheels by installing two hubs on each semi axle In order to reduce specific pressure on soil and to ensure cross road ability when working on soils with low bearing capacity wheel pairing is us...

Page 88: ...9060 02 is designed for pairing of the rear wheels of optional package tires 11 2R42 only for 450 mm row spacing The spacer 1221 3109030 is designed for pairing of the rear wheels for 450 mm row spacing tires 11 2R42 and for continuous tillage tires 11 2R42 and 360 70R24 Pairing of the rear wheels for 450 and 700 mm row spacing on optional tires 11 2R42 is performed using a spacer 1522 3109060 01 ...

Page 89: ...ng radius mm Package 360 70R24 360 540 16 9R38 429 800 Standard 11 2R24 284 518 18 4R34 F11 467 770 11 2R42 284 749 Optional 6 5 6 Protective zones for tractor wheels for processing of tilled crops Table below lists dimensions of protective zones for tractor wheels for processing of tilled crops Main crops Protective zone size mm Beet 80 Maize 120 Potatoes in ridges 200 Cotton 200 ...

Page 90: ...f tractor unitizing Therefore when the conditions of use of the tractor are changed check and if necessary adjust the tire pressure Failure to comply with the standard pressures significantly reduces the tire life Operating with overloads consisting in exceeding the maximum tire capacity for a given pressure and speed and the tractor axles is the cause of failures and damages not only to the runni...

Page 91: ...isted in the manual only after approval by the manufacturer 5 Do not use the tractor with noticeable long slips and overloading of the wheels with heavy machines the weight of which exceeds the allowable values for the tractor or tillage machines the resistance of which in particular soil conditions is too large for the tractor 6 Never exceed tire pressures as recommended by the manufacturer Tires...

Page 92: ...f wheels when the tractor gets stuck 11 Do not operate the tractor and avoid long stops on damaged or flat tires 12 If the tire pressure constantly drops find the cause and correct it 13 Check the pressure in tires filled with solution when the valve is in its topmost position Notes 1 Changing the rated tire load depending on the speed is applied in the cases when the tire is not subjected to long...

Page 93: ... tire to the desired pressure controlling it with a tire pressure gauge disconnect the hose from the tire valve and the air bleed valve connector turn off the compressor and screw the finger nut onto the air bleed valve connector Attention When the pressure in the cylinder increases to 0 77 MPa the compressor automatically is switched by the pressure regulator to idling and tire inflation automati...

Page 94: ... 500 to 740 mm with the knob 3 In the RHL one gear adjustable brace the right one and one screw brace is installed The length of the gear brace can be changed within 580 to 665 mm by rotating the knob 1 When shipped from the factory the length of both braces is set to the default value of 640 mm To accelerate changing the brace lengths their fork has two holes for installation of a finger center t...

Page 95: ...orking position by connecting braces to the lower holes of the brackets 1 Figure 6 7 3 and adjusting the length using the braces 2 to let the implement swing to each side by 125 mm min or in accordance with the operating instructions for the implement When working with plows adjust the length of the right brace to the tilling depth Attention Make sure to keep the size of implement swinging of 125 ...

Page 96: ...to the implement Fasten the finger using a cotter pin with a ring 3 If necessary adjust the upper rod to the original or desired length 4 If necessary adjust the implement transverse tilt with the right brace 3 To increase the brace length turn the knob 4 clockwise and vice versa 5 Attach the necessary extended equipment 6 Before starting the work check that tractor parts are not in dangerous prox...

Page 97: ... Caution Some mounted or semi mounted implements may touch the cab and damage it This can result in damages to the cab windows and injuries to the operator Check for an adequate gab 100 mm min between the implement raised to its upper position and the tractor cab 6 7 5 Intended use of rear hitch linkage The 1021 1021 3 tractors are equipped with a rear hitch linkage HL 2 Figure 6 7 6 shows the cha...

Page 98: ...ng types of machines and tools mounted with three point hitch upper and lower rods semi mounted lower rods semi trailed with a crossbeam on the suspension axle lower rods as described in 6 8 3 TC 1 crossbeam of this manual To prevent swinging of the attached machines the restrictive external strainers with adjustable length serve see below To ensure the required position of the machine the followi...

Page 99: ...ing share and chisel plows hoeing plows deep tillers and other machines it is necessary to ensure free movement in the horizontal plane rocking of the lower rods 125 mm in each direction from the longitudinal plane of the tractor by unblocking the strainers restriction of coverage with the strainers is not allowed when working with agricultural machines except for plows deep tillers and other simi...

Page 100: ...orresponds to the power of 11 kW max To discharge the oil from the hydraulic motor circumventing the distributor a separate line is provided The tractor is equipped with valves fittings and accessories with a conventional flow cross section of Du 12 mm and the connecting thread M20 1 5 If it is necessary to connect to different valves fittings and accessories of the unitized machines make the requ...

Page 101: ...t 11 is designed to work with semi trailers For those purposes the drawbar pin python 13 can also be used The draw bar 8 with the pivot 9 is designed for connection of trailed and semi trailed agricultural machines to the tractor 1 ring 2 cotter 3 side guide 4 plate 5 towing yoke 6 pivot 7 side guide 8 draw bar 9 pivot 10 towing yoke 11 pivot 12 finger 13 drawbar pin Fig 6 8 1 Towing coupler The s...

Page 102: ...umber of holes for joining A normally unitized machine is attached through the middle hole of the cross beam If there is a need to alight the tractor track with the unitized machine mainly harvesting one with low draught resistance asymmetric connection is allowed The cross beam is purchased on customer s request Given that the TC 2V TC 3V and TC 1M 01 take a fixed position by height the connectin...

Page 103: ...evice Yoke with the possibility of vertical travel Distance from yoke or hook sphere to support surface mm 493 898 to axis of opening in steps Position of fork for machines driven by PTO lowermost or uppermost Distance from the PTO end to axis of joining pin mm 160 or 110 Diameter of connecting finger mm 40 Vertical load on TC kN 20 Angle of machine turn relative to tractor deg 65 6 8 5 TC 3V fork...

Page 104: ..._________________________________________________________ 1 For BELARUS 1021 1021 3 tractors produced from III quarter 2010 the distance from PTO end to axis of joining pin is 390 mm 6 8 6 TC 1M 01 draw bar Used for work with the following machines semi trailed same as with TC 2V and TC 3V trailed same as with TC 2V and TC 3V Figure 6 8 6 shows the chart of unitizing for TC 1M 01 Fig 6 8 6 Chart o...

Page 105: ...below list characteristics of tractor PTO shaft ends Attention 1 For protection of the PTO drive it is advisable to install a safety coupling on the machine 2 To avoid overloading of the PTO drive when unitizing with inertial machines forage harvesters and others a driveshaft should be used with an overrunning or combined clutch on the PTI side 3 Power taken off from the PTO shaft end of BELARUS 1...

Page 106: ...ion torque and operating conditions of the machine in accordance with Table Use of driveshafts see below The main initial parameter for PTO choice is the maximum allowable torque that can be determined from the chart presented onFig 6 9 2 For machines unitized with use of HL 2 the driveshaft is determined by the distance the shaft fully moved in the horizontal position of the HL lower rods The dri...

Page 107: ...BELARUS 1021 1021 3 Operating manual 106 Fig 6 9 2 Determining maximum allowable torque Power kW hp Speed rpm Torque Nm ...

Page 108: ...shaft type designation Figure Location of hitch relative to PTO and PTI Joint tilt angles Type of tractor device for unitizing 1 2 a a HL 2 10 or 40 1 2 L L 1 2 a a TC 1M 01 1 2 L L 1 2 a a at 2 5 a TC 1M 01 20 or 50 1 2 L L 1 2 a a at 2 0 a TC 2V 30 1 2 L L 1 2 a a at 2 5 a TC 2V 1 PTO 2 Hitch point 3 PTI 1 3 2 1 3 2 1 2 3 ...

Page 109: ...the rated working torque that acts for a long time in the machine but always less than the maximum allowable torque on the tractor PTO A safety clutch is installed on the side of the power take in shaft of the unitized machine drive other installation does not provide timely protection of the tractor PTO from exceeding the maximum allowable torque and respective failures A clutch with purely freew...

Page 110: ...every 10 hours inspect the driveshaft state reliability of fastening of the end yokes and of the protective enclosure Periodically lubricate bearings telescopic parts of the drive shaft during operation Lubrication intervals must be as follows bearings with periodic lubricated of protective enclosure each shift bearings with periodic lubrication of joints and telescopic parts of the driveshaft in ...

Page 111: ...ion tils of machine driveshaft 1 deg type of joints Power take off shaft Universal Constant velocity In work 22 1 25 1 On process crossings and turns 55 2 50 2 _____________________________________________________________________________________ 1 Permissible operating angle for rated torque transfer 2 With PTO off or working without load The end yokes of the machine driveshaft must be in the same...

Page 112: ...480 2 160 2 020 3030 2 730 2 375 2 220 3 330 2 960 1 575 2 410 3 615 3 210 2 790 2 610 3 915 3 440 2 995 2 800 4 200 16 9R38 141 A8 10 20 30 40 1 595 1 390 1 300 2 275 2 090 1 815 1 700 2 550 2 360 2 050 1 920 2 880 2 630 2 285 2 140 3 210 2 895 2 515 2 355 3 530 3 165 2 755 2 575 9 5 42 116 A6 10 20 30 850 710 990 970 810 1 130 1 090 910 1 270 1 180 990 1 385 1 275 1 065 1 490 1 370 1 145 1 600 1...

Page 113: ...rameter value 1 Drawbar category as per GOST 27021 1 4 2 Rated tractive force kN 14 0 3 Operating maximum allowable weight of the tractor when driving on public roads at speeds of 30 km h max kg 8 000 4 Maximum permissible load kN a on the front driving axle 38 0 c on the rear axle 60 0 5 Operating maximum weight1 of tractor trailers and semi trailers max kg a on categorized public roads2 10 000 0...

Page 114: ...ined units Pairing the wheels can significantly reduce the specific pressure on the soiland maintain soil structure especially of wet fields Pairing the wheels on dense soils can improve traction qualities of the power unit especially when combined with proper ballasting or loading of the tractor One common method of unitizing block is mounting with the rear hitch At that the need arises to ensure...

Page 115: ...zing add CaCI to the water g in amount of Ambient temperature Amount of calcium chloride g l of water up to 15 C 200 0 up to 25 C 300 0 up to 35 C 435 0 Caution When making a solution of liquid ballast always add calcium chloride in water and stir the solution until calcium chloride is completely dissolved Never add water to the calcium chloride When preparing the solution wear protective goggles ...

Page 116: ...h beads of the tires from the rim seat to its recess on the side opposite to the location of the valve 3 Insert two tire irons between the tire bead and the rim from side of the valve at a distance of about 100 mm on both sides of it 4 Pull through the rim edge first the part of the bead at the valve and then the entire bead 5 Remove from the vale from the hole in the rim taking care not to damage...

Page 117: ... and the housings are selected in line with the agrotechnical requirements The plows are prepared to ensure fulfillment of the requirements to technical condition of working tools auxiliary devices Prepare the unit so first adjusting the mechanisms of the tractor HL for the given working conditions and preliminary setting the given depth of plowing It is recommended to check plows and other tillag...

Page 118: ...ce of the machine when the rotation decreases by more than 200 rpm shift to a lower gear otherwisean overload of the tractor will occur and the engine will overheat This is characterized by a decrease in the engine crankshaft speed and high smoking In this case it is very likely that the engine will stop At short term changes of machine resistance on a route of less than100 m maneuvering with spee...

Page 119: ...echnical characteristics of the tractor and ensure safe use of the tractor in machine and tractor units When driving the tractor on slopes and making sharp turns increase the tractor wheel track to ensure sustainability 6 13 1 3 The service brake drive is of a single wire design and is actuated from the driver s seat The parking brake drive must be located on the machine 6 13 1 4 Unitizing of gene...

Page 120: ...nt from the specifications as well as in case of replacement of factory original parts and assemblies with other special or non original not specified by the manufacturer and when seals are broken 6 13 2 4 It is forbidden to unitize tolls with the tractor if the results of weighing calculations and ballasting yield vertical statics load on the axles tires TC and HL of the tractor exceeding the all...

Page 121: ...down all the machine elements to the ground turn off the engine remove the starter and instrument switch key 6 13 2 25 It is strictly forbidden to be in an area between the tractor and the machine if the vehicle is not fixed from spontaneous rolling with the parking brake and or a brake shoe and the engine is not off 6 13 2 26 The folding frame and the loader bucket in transport position must be f...

Page 122: ...riveshaft must have a protective enclosure The driveshaft enclosure must be fixed by a chain to prevent rotation 6 13 5 3 Before connecting or disconnecting the driveshaft turn off the PTO kill the engine remove the starter and instrument switch key 6 13 5 4 Always check the correctness and security of driveshaft installation 6 13 5 5 When turning on the PTO make sure that the selected speed of th...

Page 123: ...raulic and pneumatic connections of the hydraulic accumulators and receivers of the machines must be performed with pressure relieved 6 13 6 7 Incorrect installation and operation of the hydraulic accumulators in violation of occupational safety requirements and operational documentation can cause severe accidents 6 13 7 Safety requirements for maintenance and repair of machine tractor units 6 13 ...

Page 124: ...vance angle of fuel injection Faulty fuel pump Remove the fuel pump from the engine and send off for repair Boost pressure dropped Remove the turbo charger from the engine and send off for repair Broken tightness of the engine charge air cooler in BELARUS 1021 3 Determine the cause of leak and correct it 3 Engine fumes on all modes of operation 3 1 Black smoke from the exhaust pipe Clogged engine ...

Page 125: ...ess of oil line connections Find the location of leakage and restore it Faulty oil pump Find the fault and correct it Oil level in the diesel engine crankcase lower than allowable Add oil to the top mark of the oil gage stick Jammed safety valve in the oil filter housing Rinse the valve and bushing adjust the pressure in the lubrication system Wear limit in the joints of the crankshaft journal bea...

Page 126: ...y of the start lock switch and its electrical circuits Engine not prepared for start at temperature below 5 C Prepare the engine to start at low temperatures 9 2 After engine start the starter remains on Contact plate welded to the contact bolts of the starter switch Clean the starter relay contacts or install the contact screws into the nests on the cover turning around the axis by 180 and instal...

Page 127: ...full capacity Broken wires leading to the regulator Solder and insulate the point of failure Broken one of the stator phases Replace the stator Turn to turn short circuit of the stator winding Replace the stator Turn to turn short circuit of the excitation coil winding Replace the excitation coil Faulty one of the power rectifier diodes Replace the rectifier unit 10 3 Systematic overcharge of stor...

Page 128: ...h Replace the pressure springs 2 The clutch is not completely disengaged leads Increased clearance between the release bearing and the release levers too long clutch pedal free travel Adjust the clutch pedal free travel as described in 8 Maintenance of this Manual The release levers are not evenly adjacent to the release bearing Adjust the position of the release levers Increased warp of the drive...

Page 129: ... Low oil pressure supplied to the lock actuator Check the pressure supplied to the DL clutch It must be 0 9 to 1 MPa Differential lock hydraulic distributor does not operate Check the fuses switches and other elements of the DL circuit correct the problem If the electrical circuit and its elements are operable unmount the DL hydraulic distributor and send it for repair 7 4 Troubleshooting of rear ...

Page 130: ...ng surfaces of the pressure plates Clean the working surfaces of the pressure plates Signs of wear and corrosion on the hole surfaces only for tractors equipped with dry brakes Polish and then lubricate the holes No insufficient oil in the brake housing Fill the brake housing with oil or add it as specified in 8 Maintenance of this Manual 4 Uneven braking of the right and left wheels Maladjustment...

Page 131: ... Faulty brake valve Replace the brake valve 3 Increased release of oil to the pneumatic system Faulty air compressor Unmount the air compressor and send it in for repair 4 Insufficient pressure in the receiver Air leakage from the pneumatic system Eliminate air leaks as described above Disturbed position of the adjusting cap of the pressure regulator Adjust the pressure regulator as specified in 5...

Page 132: ...the cylinder pressure to below 0 65 MPa 8 Trailer brakes operate inefficiently Maladjusted brake valve actuator Adjust the brake valve actuator as specified in 5 7 Checking and adjusting brake valve of pneumatic system of this Manual Maladjusted brake valve Replace the brake valve Faulty brake system of the trailer Correct the fault 9 Trailer brakes release slowly Maladjusted brake valve actuator ...

Page 133: ... The steering wheel rotates continuously without turning the steerable wheels Insufficient oil level in the tank Fill the tank with oil to the required level and pump through the HSU hydraulic system Safety valve set higher than the no slam valves Adjust setting of the safety valves and no slam valves Metering pump incorrectly assembled after disassembling not installed universal joint back pressu...

Page 134: ... metering pump steering wheel continues to rotate after making a turn The sleeve grips the spool possibly due to dirt Rinse the metering pump parts and assemble observing manufacturer s instructions Spool return springs lost elasticity and broken Replace the springs 7 Constant adjustment of the steering wheel required the wheel does not hold the road Spool return springs lost elasticity or broken ...

Page 135: ...the valve to a pressure of 14 to 15 5 MPa Repair or replace the feed pump Too high steering torque of FDA reducers Repair the FDA 15 Destruction of feed pump High pressure in the steering hydraulic system incorrect connection of high pressure hoses jammed metering pump safety valve connect strictly observing respective documents on repair and operation flush and adjust the safety valve to a pressu...

Page 136: ...eplace the springs The control linkage of the transfer case has an increased length Adjust the linkage length as described in Adjustments 2 Rapid wear and lamination of front wheel tires Tire pressures in front and rear wheels do not match the recommended values To prevent malfunctions maintain air pressure in the front and rear tires as per the recommended values Maladjusted toe in Adjust the toe...

Page 137: ...e steering rods and turn cylinders Check and adjust 7 Lubricant leak through the flange cup of the final drive driving pinion Worn or damaged flange cup Replace the worn out parts 8 Lubricant leak through the yoke cup of the double universal joint Worn or damaged cup Replace the cup 9 Lubricant leak through the cup of the wheel reducer driving pinion Increased play in the pinion bearings Check and...

Page 138: ... lowering the characteristic sound emitted by the pump under load is heard After stopping the engine shifting the position lever to the forward position then to the rear position and starting the engine the hitch does not rise the power lever must be in the forward position Foreign particles under the edges of the spool Remove the cover from the regulator distributor set the positional lever in to...

Page 139: ...by a small amount after the hitch gets to the position set by the position lever drawdown of the hitch Leak of no drawdown valve Unmount the regulator distributor unscrew the cap of the regulator distributor take out the spring calk the valve ball to its seat install the parts to place 8 Position of the position lever at 0 and 10 does not correspond to the transport and the lowermost position of t...

Page 140: ...628 67 98 2 Air conditioner fan engine does not operate Electric equipment failure Check condition of the respective fuse 25A see the electric circuit diagram Appendix B on the fuse block F4 located on the instrument panel Replace if faulty With a test lamp check availability of power at the air conditioner engine see the electric circuit diagram Appendix B with the switch ON and the engine ground...

Page 141: ...k feed voltage supply to the solenoid according to the electric circuit diagram Appendix A serviceability of the winding of the respective solenoid the winding resistance must be 4 to 7 Ohms No oil pressure at the distributor output Check pressure at the distributor output Correct the failure in the hydraulic system 2 Rear axle DL does not engaged in the automatic mode when the wheel guides are in...

Page 142: ... engine and engage the parking brake If any guards or enclosures were removed make sure to install them to place after maintenance and before starting work on the tractor When performing maintenance of hydraulic systems of the hitch linkage steering and the hydraulic system of the tractor transmission strictly observe intervals of oil and filter change For filling adding never use oils not listed ...

Page 143: ...t maintenance operations performed by the operator during long time storage of the tractor is presented in 9 Storage of tractor of this Manual Depending on the operating conditions of the chassis a deviation from the prescribed maintenance intervals earlier or later is allowed for M 1 and M 2 by plus 10 and for M 3 by 5 8 2 Ensuring access to tractor parts for maintenance 8 2 1 Ensuring access to ...

Page 144: ...ock 8 to the left open the mask 2 lock it open using the rod 11 in the bracket 10 make sure that the mask 2 is securely locked in the raised position Do not open the mask and hood at the same time Fig 8 2 2 Diagram of mechanism of raising locking and lowering hood of BELARUS 1021 3 tractor To install the sides 4 and 5 Fig 8 2 2 proceed as follows install the sides 4 and 5 on the brackets 13 and 14...

Page 145: ...nsate 1 10 Check operation of the brakes on the move operability of the engine the steering the illumination and signaling devices 11 Check and wash RHL grapples2 12 Remove condensate from the tanks of the heat exchanger of the engine charge air cooler 3 winter sum mer 13 Check tightening of wheel threaded connections4 14 Wash the tractor 15 Pour off sediment from the coarse fuel filter and the fu...

Page 146: ...Check the transmission oil level 36 Check oil level in wet brake housings 7 37 Check oil levels in the housings of the wheel reducer and FDA final drive 38 Check adjust clearances between the valves and the rockers of the engine 39 Check adjust axial preload in pivot tapered bearings 40 Adjust service brake pedal control 41 Adjust parking reserve brake control 42 Clean the filter element of the ai...

Page 147: ... advance angle of fuel injection on the engine 63 Flush the engine cooling system 64 Adjust the engine lubrication system oil pressure As necessary ________________________________________________________________________________ 1 For BELARUS 1021 3 when an air conditioner installed on request instead of the fan heater 2 When the RHL is equipped with lower rods with Walterscheid grapples 3 For BEL...

Page 148: ... If necessary add oil to the desired level through the neck 1 removing the cap 2 install the cap 2 to place 1 oil filler neck 2 cap 3 oil level gage Fig 8 4 1 Check oil level in engine crankcase Attention do not let the engine run when the oil level is below the lower mark of the oil gage Attention do not add oil above the upper mark of the oil gage excess oil will burn out creating a false impres...

Page 149: ...equire high oil consumption at the level of the mark C As necessary add oil to the level of the mark P through the oil filler neck removing the screw cap 2 1 oil gage glass 2 oil filler cap Fig 8 4 3 Check oil level in hydraulic linkage system tank Attention check the oil level in the hydraulic linkage system tank only with the retracted cylinder rods of the RHL and the machines unitized with the ...

Page 150: ... drains The cylinder must contain compressed air 1 ring 2 pneumatic drive cylinder Fig 8 4 5 Remove condensate from pneumatic drive cylinder Operation 6 Check degree of clogging of engine water heat exchanger and CAC heat exchanger Check cleanliness of the hood mask grill and the cores of the engine heat exchanger and the CAC heat exchanger for 1021 3 If they are clogged clean them with a soft bru...

Page 151: ...essed air Operation 9 Check clean air conditioner drain pipes of condensate Note The operation is performed for BELARUS 1021 3 tractors when an air conditioner installed on request instead of the fan heater Blue drain pipes are to the right and left of the heat exchanger pipe under the ceiling panel Check and as necessary in order not to allow plugging clean the drain pipes A sign of a clean drain...

Page 152: ...service hours or every shift during fall and winter and every 125 service hours during spring and summer To remove condensate from the tanks of the engine CAC heat exchanger proceed as follows unscrew two plugs 1 Figure 8 4 7 in the lower part of the charged air cooler 2 let condensate drain screw the plugs 1 1 plug 2 charge air cooler Fig 8 4 7 Remove condensate from the tanks of the engine CAC h...

Page 153: ...50 N m the tightening torque of nuts fastening the front wheel disks to the rim carriers must be 180 to 240 N m 1 nut fastening front wheel disks to FDA reducer flanges 2 nut fastening front wheel disks to rim carriers 3 nuts fastening rear wheels to hubs 4 bolts fastening rear wheel hubs Fig 8 4 8 Check tightening of wheel threaded connections Operation 14 Wash the tractor Operation 15 Pour off s...

Page 154: ...b roof Attention in wet conditions such as in early morning hours before serving the filter do not operate the fan as trapped moisture particles in the filter are difficult to remove Attention when operating the tractor in conditions of high dust clean the filter more frequently 1 cab roof 2 filter cover 3 filter element Fig 8 4 10 Clean filters of cab air conditioning and heating system Operation...

Page 155: ...ler Fig 8 4 12 Lubricate bearings of pivot axles of FDA wheel reducers Operation 19 Check condition and tension of engine cooling system fan belt Check the belt for traces of wear or damage If necessary replace it To check the alternator fan belt tension apply a force of about 40 N to the middle point of its crankshaft pulley to alternator pulley generator branch as shown in Fig 8 4 13 The deflect...

Page 156: ...rface and adjust the air pressure at the surface by varying the distance between the hose and the element After each service work on the PFE or when installing new PFEs check their condition visually when any mechanical damage cracking in corrugated paper loose bonds of the bottoms are found replace the PFEs During maintenance work protect the filter element from mechanical damages and contaminati...

Page 157: ... rinse the MFE and replace the BFE Clean the supply pipe the inner surfaces of the casing and the cover of the air cleaner of dust and dirt check condition of the sealing rings assemble the air cleaner in the reverse order make sure that the BFE is correctly installed and close the latches 1 set the hood mask to its original position 1 latch 2 cover 3 basic filter element Fig 8 4 15 Check engine a...

Page 158: ...ompressor pulley as measured in the middle point is 4 to 6 mm when a force of 39 2 0 N is applied perpendicularly to the middle part of the branch 1 air conditioner compressor drive belt 2 air conditioner compressor Fig 8 4 16 Check adjust tension of the air conditioner compressor drive belt Adjust tension of the air conditioner compressor drive belt adjust tension of the belt 1 Figure 8 4 16 by t...

Page 159: ...t until clean fuel shows up tighten the plugs 1 and 2 1 air bleed plug 2 sediment discharge plug Fig 8 4 17 Pour off sediment from fine fuel filter of D 245 engine Pour off sediment from fine fuel filter on BELARUS 1021 tractors with D 245S engine and BELARUS 1021 3 with D 245S2 engine unscrew by 1 2 turns the air bleed plug 1 Fig 8 4 18 unscrew the plug 2 located in the lower part of the filter a...

Page 160: ...eries and check 1 Electrolyte level if necessary add distilled water so that the electrolyte level be above the grill by 10 15 mm or be at the level of the mark on the battery body 2 Battery discharge by electrolyte density if necessary recharge the batteries The lowest allowable battery discharge is 50 in summer and 25 in winter 1 output pin terminal 2 filler plug Fig 8 4 19 Maintenance of storag...

Page 161: ...e bearing Attention do not inject excessive lubricant as excessive lubricant will accumulate inside the clutch housing and can get to the friction surfaces of the driven plate linings Operation 28 Lubricate HSU cylinder joints Use a gun to inject a lubricant specified in Table 8 4 to the HSU cylinder joints 2 Fig 8 4 22 through the oilers 1 1 oiler 2 HSU cylinder Fig 8 4 22 Lubricate HSU cylinder ...

Page 162: ...hen the release bearing touches the clutch release levers unscrewing the fork 3 align the holes in the plug and the lever 1 and then screw the fork into the rod 5 by 5 5 5 turns i e shorten the rod Connect the fork 3 with the lever 1 using the finger 2 assemble the leverage of the clutch pedal in reverse order Make sure that the clutch pedal securely returns up to stop against the floor at the are...

Page 163: ...r 3 oil level gage 4 drain plug Fig 8 4 24 Change engine oil Caution Be careful to avoid contact with hot oil Operation 31 Replace engine oil filter Replace the filter element according to Fig 8 4 25 simultaneously with changing oil in the engine crankcase in the following order screw out the filter FM 009 1012005 from the connecting piece using a special wrench or other means available screw a ne...

Page 164: ...g rod joints To check free travels and plays in the joints 1 Fig 8 4 27 of the steering rod 4 turn the steering wheel in both directions with the engine running If the angular play of the steering wheel exceeds 25 as shown in Fig 8 4 26 eliminate plays in the steering rod joints proceeding as follows remove the lock wire 3 Fig 8 4 27 screw the screw plug 2 to eliminate the clearance in the joint c...

Page 165: ...e in as specified in 5 2 Checking and adjusting toe in of this Manual Operation 34 Check tighten threaded connections of TC and hydraulic lift Check and if necessary tighten six nuts M20 fastening the TC and the hydraulic lift to the rear axle housing tightening torque of 180 to 224 N m four nuts M20 fastening the hydraulic lift to the rear axle housing tightening torque of 180 to 224 N m four bol...

Page 166: ... install the oil gage stick 1 and the cap 5 and the floor cover to place To check the oil level in the transmission of BELARUS 1021 1021 3 tractors with a speed reducer hydraulic speed reducer proceed as follows install the tractor on an even place unscrew the control plug 3 Fig 8 4 29 located on the speed reducer hydraulic speed reducer housing from the left side of the gearbox check that the oil...

Page 167: ...gs 1 Fig 8 4 30 Check the oil level in the wet brake housings Attention The oil grade added to the brake housings must be the same as the oil grade used in the transmission Attention it is forbidden to operate brakes without oil or with insufficient oil level Operation 37 Check oil levels in housings of wheel reducers and FDA final drive Check the oil level in left and right wheel reducer housings...

Page 168: ... 05 0 10 0 25 0 mm 2 exhaust valves 05 0 10 0 45 0 mm When adjusting the clearance between the valve stem and the rocker striker on a cold diesel engine set 1 inlet valves 05 0 25 0 mm 2 exhaust valves 05 0 45 0 mm Adjust as follows remove the cap of the cylinder head cover and check fastening of the rocker shaft support crank the crankshaft until the valves overlap in the first cylinder inlet val...

Page 169: ...he engine must be killed Put brake shoes in front and behind the wheels precluding spontaneous motion of the tractor Adjust the service brake control as follows unscrew the locknuts 3 Fig 8 4 34 of the adjusting bolts 2 screw the bolts 2 into the adjusting forks or unscrew them to provide the right pedal full travel of 105 to 115 mm under a force of 120 to 130 N and the stopping distance of 6 0 me...

Page 170: ...n an even horizontal surface The engine must be killed Put brake shoes in front and behind the wheels precluding spontaneous motion of the tractor Adjust the parking reserve brake control option with a lever located under operator s right hand as follows shift the parking brake lever 8 Fig 8 4 35 in the forward position push loosen the adjusting screw locknut 1 and the locknut 7 and take out the p...

Page 171: ...ensure alignment of the upper edges A of the arm holes 9 and 10 then lock the nuts 4 Adjust the travel of the lever 1 with the screw 6 so that under an effort 300 10 N on the lever 1 its travel be 110 to 120 mm then tighten up the nut 7 Set the switch VK 409 so that shifting the lever 1 of the extension mechanism 2 to its lowest position ensure opening of the electrical circuit of the parking brak...

Page 172: ...s For BELARUS 1021 1021 3tractorsequipped withtheoptionalmulti diskbrakes workingin oilbath wetbrakes 1 extension mechanism lever 2 extension mechanism 3 exhaust mechanism rod 4 nut 5 lever 6 adjusting bolt 7 nut 8 cotter pin 9 lever 10 lever Fig 8 4 36 Adjust parking reserve brake control with rod ...

Page 173: ...re regulator Fig 8 4 37 Clean filter element of air pressure regulator filter Operation 43 Check tightness of pneumatic lines To check tightness of the pneumatic lines proceed as follows bring the pneumatic system pressure to 0 6 to0 65MPa per the air pressure indicator on the instrument panel and kill the engine for a single cable pneumatic drive connect a pressure gage with a scale of 1 MPa min ...

Page 174: ... glass 1 cover 2 bolt 3 nut 4 limiter 5 filter element 6 housing Fig 8 4 38 Replace filter element in hydraulic linkage system tank Operation 46 Replace filter element in HSU tank Note The fist change of filter element is performed after 500 service hours of the tractor Further on change the filter element every 1 000 service hours To replace the filter element in the HSU tank of BELARUS 1021 trac...

Page 175: ...ed as follows unscrew the four bolts 1 M6 25 and remove the filter assembly 2 Fig 8 4 40 on the filter 2 unscrew the two bolts 3 M6 16 remove the cover 4 take out the filter element 5 install a new filter element 5 assemble the filter 2 and install it on the tank in reverse order If necessary remove the oil filler cap 6 and add oil to the upper mark on the oil gage stick 7 1 bolt 2 filter assembly...

Page 176: ...s performed for BELARUS 1021 3 tractors when an air conditioner installed on request instead of the fan heater 2 Note Perform the operation every 800 service hours of the tractor but at least every year Attention for replacement of filter drain contact a special service station replace only using special equipment ...

Page 177: ...e wire 3 1 joint 2 plug 3 lock wire 4 steering rod Fig 8 4 41 Change lubricant in steering rod joints Operation 49 Wash the coarse fuel filter Rinse the fuel coarse filter proceeding as follows shut off the fuel tank valve unscrew the nuts of the sleeve fastening bolts remove the barrel 3 Fig 8 4 42 unscrew the deflector with mesh 2 with a wrench remove the scatterer wash the deflector with mesh t...

Page 178: ...w filter element fill the filter housing with fuel install the cover 1 and the fastening nuts bleed air from the fuel supply system 1 filter cover 2 filter element 3 filter housing 4 cap Fig 8 4 43 Replace filter element of fine fuel filter To bleed air unscrew the plug 3 Fig 8 4 44 on the fuel pump housing the location of the air bleed plug on fuel pumps of different types varies and by 1 2 turns...

Page 179: ...ng 3 bracket 4 plug to drain sediment 5 outlet connecting pipe 6 plug to bleed air 7 gasket 8 connecting pipe Figure 8 4 45 Replace fine fuel filter Instead of a filter FT020 1117010 other sealed fuel filters can be installed with basic specifications and dimensions such as follows screening efficiency 90 min relative capacity at pressure difference of 0 01 MPa 150 l h min diameter 95 to 105 mm he...

Page 180: ...s fastening the cylinder head in the order shown in Fig 8 4 47 and if necessary tighten up the bolts the tightening torque of the cylinder head bolts must be 240 10 N m after check of tightening of the bolts fastening the cylinder heads put the rocker shaft to place and adjust the clearance between the rockers and the valves as specified in Operation 38 Check adjust clearances between valves and e...

Page 181: ...oor cover under feet 1 On tractors without a speed reducer hydraulic speed reducer the normal operating level of transmission oil must be between the upper and middle marks on the oil gage stick as shown in Operation 35 Check oil level in transmission of this Manual 2 On tractors equipped with a speed reducer hydraulic speed reducer the normal oil level in the transmission must coincide with the b...

Page 182: ...for the transmission Caution Be careful to avoid contact with hot oil Operation 54 Change oil in FDA and intermediate support housings Before changing oil warm up the oils in the FDA housings and the intermediate support to the operating temperature by driving the tractor Then install the tractor on an even horizontal surface The engine must be killed Engage the parking brake and put brake shoes i...

Page 183: ...l drive housings 1 check filler plug of wheel reducer 2 drain plug of wheel reducer 3 wheel reducer housing 4 central gear drain plug Fig 8 4 51 Change oil in FDA housings Caution Be careful to avoid contact with hot oil Operation 55 Change oil in HSU tank Before changing oil in order to warm up the HSU oil turn the steering wheel to the extreme position with the engine running and keep it in that...

Page 184: ...Before changing oil warm up oil in the hydraulic linkage system to a normal operating temperature by starting the engine shifting any of the hydraulic output control levers to the lift position and holding the lever in this position until the hydraulic system warms up To replace oil in the hydraulic linkage system proceed as follows install the tractor on an even surface shift down the rear hitch ...

Page 185: ...021 3 tractors with an air pressure regulator 80 3512010 The label tag with the regulator number is located on the area A of the regulator housing Check and if necessary adjust the pneumatic system pressure regulator as specified in 5 8 Checking and adjusting pneumatic system pressure regulator of this Manual Operation 58 Lubricate gear brace mechanism of RHL Using a gun inject lubricant as specif...

Page 186: ...lts M16 on each joint of the rear axle housing and the semi axle tube to a torque 160 to 200 N m Note Foraccesstotheboltheads unmountthetractorrearwheels 7 Checkand if necessary tightentworearbolts M20 fastening the cover to the rear axle housingto a torque315 to400N m 8 Check and if necessary tighten eight bolts M16 four bolts on each side fastening the HL rear rod brackets to the rear axle housi...

Page 187: ... the fuel system fully clean an adjacent work surface unscrew the nuts 4 Fig 8 4 56 and disconnect the high pressure fuel lines 5 from the injectors 3 and the fuel pump unscrew the four bolts 1 of the drain line and remove the return pipe 2 Reject sealing copper washers two washers on each banjo bolt unscrew the bolts 6 fastening the and remove the injectors 3 send the injectors to service at a de...

Page 188: ...on of the pump and instead of it connect a check device being a high pressure pipe segment 100 to 120 mm long with a packing nut on one end and the second end bent aside by 150 to 170 C as per Fig 8 4 57 fill the fuel pump with fuel bleed air from the low pressure system and create a positive pressure using the priming pump until a continuous jet of fuel emerges from the tube of the check device s...

Page 189: ...lock it tightening up the nuts fastening the drive half coupling to the drive pinion Re check the moment of fuel supply start Disconnect the check device and install the high pressure pipe and the hatch cover to place Screw the latch into the back plate hole 1 packing nut 2 high pressure pipe Fig 8 4 57 Design of check device Fig 8 4 58 Install latch in back plate and flywheel hole 1 hatch cover 2...

Page 190: ...s that the piston of the first cylinder is set to the position corresponding to the setting advance angle of fuel injection specified in Table Diesel engine parameters on page 16 of this Manual 1 glass pipe 2 rubber adapter pipe 3 high pressure pipe segment 4 washer 5 nut Fig 8 4 60 Ignition tester If the latch does not align with the hole in the flywheel make an adjustment proceeding as follows r...

Page 191: ...e pressure indicator located on the instrument panel when running a diesel engine with a rated speed and a coolant temperature 85 to 95 C the oil pressure must be 0 25 to 0 35 MPa and on a cold engine a pressure up to 0 6 MPa is allowable If the lubrication system is operable connections of oil lines are tight the safety valve in the oil filter is serviceable etc but at the engine rated speed and ...

Page 192: ...in the air cleaner tray When performing M 1 in addition to the operations listed in Table 8 2 do the following check engine oil no mechanical impurities in oil are allowed If necessary make a replacement Check the central pipe of the air cleaner the pipe must be clean Flush and service the air cleaner every 20 service hours of tractor flush the water heat exchanger core with a water jet or blow wi...

Page 193: ...STB 1658 2006 with sulfur content of 350 ppm 0 035 max Grade B None Biodiesel fuel BDL B 10 BDL B 50 TUBY500036524 121 2008 Diesel fuel EN 590 2004 with sulfur content of 350 ppm 0 035 max At ambient temperature of 5 C and above Diesel fuel STB 1658 2006 with sulfur content of 350 ppm 0 035 max Grade C None Biodiesel fuel BDL F 10 BDL F 50 TU BY 500036524 121 2008 Diesel fuel EN 590 2004 with sulf...

Page 194: ... CF 4 12 0 0 12 250 1021 1021 3 2 2 High pressure fuel pump of diesel engine 1 Same motor oil as in engine crankcase 0 25 0 01 When installing new or repaired pump Motorpal PP4M10P1f 40 0 4 1021 1021 3 without speed reducer 2 3 Transmiss ion housing C GB and RA 1 Transmissi on oil TAp 15V GOST 23652 79 Transmission oil TAD 17i TSp 15K TSp 10 GOST 23652 79 TEP 15M TU 38 401 58 305 2002 Motor oil M ...

Page 195: ...EP 15M TU 38 401 58 305 2002 None HESSOL BECHEM HYPOID SAE 80W 90 API GL5 GL4 3 9 0 04 1 000 1021 1021 3 with long beam FDA 2 8 FDA intermediate support housing 1 Transmissio n oil TAp 15V GOST 23652 79 Transmission oil TAD 17i TSp 15K GOST 23652 79 TEP 15M TU 38 401 58 305 2002 None HESSOL BECHEM HYPOID SAE 80W 90 API GL5 GL4 0 15 0 002 1 000 1021 1021 3 2 9 HSU tank with hydraulic units and 1 Al...

Page 196: ... cylinder joint 2 Lubricant Litol 24 GOST 21150 87 BECHEM LCP GM None BECHEM LCP GM 0 05 0 003 250 1021 1021 3 3 5 Steering rod joint 2 Lubricant Litol 24 GOST 21150 87 BECHEM LCP GM Solid oil S grease GOST 4366 76 or Solid oil ZH grease GOST 1033 79 BECHEM LCP GM 0 05 0 003 1 000 1021 1021 3 3 6 Rear hitch linkage brace 3 2 Lubricant Litol 24 GOST 21150 87 BECHEM LCP GM Solid oil S grease GOST 43...

Page 197: ...Fuels with sulfur content not exceeding the maximum allowable value set forth for Tier 2 diesel engines can be used Directive 97 68 Stage II and UN EEC Rules 96 01 up to 2 g kg 0 2 2 Use motor oils depending on operation conditions a summer 5 C and above SAE 30 SAE 10W 40 30 SAE 15W 40 30 SAE 20W 40 30 b winter minus 10 C and above SAE 20 SAE 10W 40 30 SAE 15W 40 30 c winter minus 20 C and above S...

Page 198: ... equipment parts from rubber plastics textile hydraulic hoses etc tools Install the fasteners of the removable parts of the tractor to their respective places Clean and blow round with compressed air the electric equipment headlights alternator starter storage batteries cover the terminals with protective lubricant When preparing the tractor to long term storage clean of scum and flush the engine ...

Page 199: ...es through which precipitation can ingress internal cavities of the tractor The storage batteries must be disconnected 9 3 Requirements to short time storage of machines Install the tractor for storage complete without removing tractor units and assemblies Disconnect the storage battery The electrolyte level and density must conform to the recommendations for maintenance and servicing of storage b...

Page 200: ...ervation materials Rub the preserved surfaces with cleaning cloth dampened in low viscosity oils solvents or wash them with water soluble detergent solutions Remove insulating materials film paper from the preserved units The preserved inner surfaces require no depreservation 9 7 Re preservation Re preserve the tractor in case when any faults in preservation are found during storage or after the p...

Page 201: ...ays use personal protective equipment When carrying out preservation works observe personal hygiene rules timely deliver protective garment to cleaning do not wash it in emulsion solvents and kerosene Preservation materials are moderately hazardous to human health thus use the recommended personal protective equipment when working with the materials Prolonged exposure of hand skin to preservation ...

Page 202: ...ead the load grappling device to the ring nut body and it secure with the stop 2 through the eye of the ring nut Towing the tractor with inoperative HSU pump is allowed at 10 km h max to 5 km max When towing the tractor do 1 Shift the PTO independent and synchronous drive shifter to the neutral position 2 With single lever control shift the gear change and range change GB lever to the neutral posi...

Page 203: ...drain the diesel fuel from the fuel tank and put it to storage containers drain the electrolyte from the battery of the tractor put it to storage containers and send it for recycling according to the established procedure perform a full disassembly of the tractor and sort out parts made from non metals steel cast iron aluminum non ferrous and precious metals and send them for recycling according t...

Page 204: ...r socket 5 DL engagement pilot lamp 6 PTO engagement pilot lamp 7 DL relay switch 8 9 diodes 10 PTO relay switch 11 PTO switch 12 on off two position PTO control switch 13 three position DL control switch 14 PTO hydraulic distributor solenoid 16 DL hydraulic distributor solenoid Wire colors blue yellow red brown grey violet black PTO DL 12V after st arting engine DL and PTO control panel ...

Page 205: ...ic motor 1 S1 Fan mode selector 1 YC Compressor electromagnetic clutch 1 A5 Start preheater 1 Engine kit BA1 BA2 Loud speaker 2 Cassette radio recorder kit BK1 Temperature indicator sensor 1 BN1 Fuel level indicator sensor 1 BP1 Engine oil pressure sensor 1 BP2 Air pressure sensor 1 BV1 BV2 Speed sensor 2 E1 E2 Road headlight 2 3 E4 E5 E6 E 8 9 Working headlight 6 E7 Interior lamp 1 10 Number plat...

Page 206: ...relay switch 30A 7 K4 Normally closed relay switch 20A 1 7 Starter relay switch 1 KH1 Interrupter of park brake light 1 2 Turn indicator breaker 1 1 Spark plug unit 1 2 Pre heater control unit 1 1 Fan electric motor 90W 1 2 Parallel motion windshield wiper 1 M3 Starter 24V 4 kW 1 For 24V start system Starter 12V up to 3kW 1 For 12V start system Tier 0 Tier 1 Starter 12V 2 7 kW 1 For 12V start syst...

Page 207: ...ter switch 1 SB1 Emergency stop signaling switch 1 SB2 Stop signal switch 1 SB3 Park brake light switch 1 SK1 Emergency temperature sensor 1 SP1 Air cleaner clogging sensor 1 SP2 Emergency air pressure sensor 1 SP3 Emergency oil pressure sensor 1 UZ1 Voltage converter 1 Cylindrical connectors XS12 1 XS12 2 Socket ShS32P12G M 7 2 XS12 3 Socket ShS32PK12G MT 7 1 XS15 1 Socket ShS36U15G M 6 1 XP12 1 ...

Page 208: ...uit diagram of BELARUS 1021 1021 3 tractors Basic option spark plug unit turn indicator breaker instrumentation power supply relay switch Heater lock relay switch starter lock relay switch starter relay spark plug unit upper beam relay switch lower beam relay switch ...

Page 209: ... start system with manual ground switch Option 4 with flashing beacon Option 5 with heater 80 8101720 90W Figure B1 Sheet 2 Electric circuit diagram of BELARUS 1021 1021 3 tractors Option 6 with air conditioner Option 7 with start preheater Option 8 with four front headlights installed on roof SPH relay switch PCU unit ...

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Belarus 1021, Operating Manual

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