UAZ UAZ-31512 Instruction Manual Page 1

Open Joint-Stock Company"Ulyanovsky Avtomobilny Zavod"AUTOMOBILESÓÀÇ-31512,ÓÀÇ-31514,ÓÀÇ-31519,ÓÀÇ-3153AND THEIR MODIFICATIONSInstruction Ma

10Fig. 5. Automobile Marking:1, 2 - identity numbers; 3 - body number; 4 - chassis number; 5 - name plate"Identification Data";I - internati

100LUBRICATION TABLEDescription of Number Lubricant or fluid Lubrication intervals Lubrication instructionsunits of lubric.points1234 5 6Motor Oils1.

101Transmission Oils9. Gearbox case 111. Transfer box case 112. Hub drive housings 413. Front and rear axle final 2drive housings28. Steering gear 1 W

1021234 5 62. Cooling system pump 1 Every 16000 km of run Add as requiredbearings- Heater motor Lubricate with thin layerbearings to 24. Steering ro

10324. Front and rear wheel 4 Every 32000 km of run Grease layer in bearings should behub bearings 10-15 mm thick.Space between rollers should befille

104Note. - The first indicated in column 4 grease is the basic grease.1234 5 616. Front and rear springs 4 Graphite grease ÓÑÑà Lubricate as required,

105Appendix 1LAMPS EMPLOYED ON AUTOMOBILESLamps Type Power, WHead lamps: upper and lower beam 12-45õ40 45õ40ÀÊÃ12-60+55-1(Í4) 60õ55Front lamps:cleara

106Appendix 2TORQUES FOR MAIN THREADED CONNECTIONS,kgfmStud nuts attaching cylinder blockheads to cylinder block 9.0-9.4Connecting rod bolt nuts 6.8-

107Appendix 3MAIN METERING JETS OF CARBURETTORS Ê-151ÂAND Ê-151ÅJets 1st chamber 2nd chamberMain fuel jet 225±3 cm3/min 330±4.5 cm3/min(230±3 cm3/min)

108CONTENTSImportant ... 3Safety instructions ...

109Overload breakers ... 83Instrumentation and warning flashers ...

11SPECIFICATIONSAutomobile ModelsDescriptionÓÀÇ-31512 ÓÀÇ-31514 ÓÀÇ-31519 ÓÀÇ-3153 1 2 3 4 5GENERAL DATAOverall dimensions of automobiles are

FOR NOTES

Fig. 1. Wiring Diagram of Automobile ÓÀÇ-31512:1 -front lamp; 2 -headlamp; 3 -fog lamp; 4 -horn; 6-fog lamp; 7-headlamp; 8-alternator; 9-oil emergency

Fig. 2. Wiring Diagram of Automobiles ÓÀÇ-31514, ÓÀÇ-31519:1 -front lamp; 2-headlamp; 3-fog lamp; 4-horn; 6-fog lamp; 7-headlamp; 8-alternator; 9-oil

Fig. 3. Wiring Diagram of Automobile ÓÀÇ-3153:1-front lamp; 2-headlamp; 3-fog lamp; 4-horn; 6-fog lamp; 7-headlamp; 8-alternator; 9-oil emergency pres

12Minimum turning radius bytrack of front outer wheel(relative to centre of turn), m,not more 6.3 (6.5*) 7.2Outer turning radius by pointof front bump

13Fuel system With forced fuel feed and fuel-air mixture heatingFuel Gasoline with octane number 76Cooling system Liquid, clo

14Wheels and tyres:wheels Steel, with deep-well one-piece rim, size6L½15 or 6J½16 depending on tyresin usetyres Tubed225R16C (Ê-151 or Ê-152),225/75R1

15thermal cut-out Pushbutton - in lighting circuitADJUSTMENT DATAValve-to-rocker clearance oncold engine (at 15-20 °C), mm:for exhaust valves of No.1a

16FILLING CAPACITIES, lAutomobile ModelsDescription ÓÀÇ-31512 ÓÀÇ-31514 ÓÀÇ-31519 ÓÀÇ-3153Fuel tanks:r.h. 39l.h. 39Engine cooling system(heater and ex

17Fig. 7. Controls and Instruments (for Ref. Nos. refer to text)11 - heater box cover: when the cover is open the hot air flowsinto the compartment.12

1816 - handle of fuel tank cock: turned to the right - the right-hand fuel tank is on; turned forward - the cock is closed; turnedto the left - the le

19Fig. 9. Instrument Panel of Automobile ÓÀÇ-31512 (for Ref.Nos. refer to text)Fig. 10. Instrument Panel of Automobiles ÓÀÇ-31514,ÓÀÇ-31519 (for Ref.

This instruction manual contains the brief description of thedesign and necessary operating and maintenance instructions.Since efforts are continually

2016 - throttle valve control knob. The knob can be fixed byturning it through 90° in any direction.17 - selector switch of fuel level gauges.18 - rea

21An interlock device provided in the ignition switch eliminatesthe starter faulty switching at operating engine and permits torestart the engine only

22The automobiles ÓÀÇ-31514, ÓÀÇ-31519, ÓÀÇ-3153 andsome automobiles ÓÀÇ-31512 are equipped with the front seatswith the height-adjustable headrests

23The rear triple seat (Fig. 17) is of a folding type and has twoseparate seat backs (on the automobiles ÓÀÇ-31514, ÓÀÇ-31519, ÓÀÇ-3153 the sea

24Some automobiles could be equipped with the longitudinalsemihard seats instead of the triple seat and two rear single seats.Safety BeltsThe automobi

25To fasten the belt, pull the tongue 1 (Fig. 19) and insert it intothe lock 2 till click is heard. To unfasten the belt, push the button 3.When adjus

26PRESTARTING PROCEDUREDealers must give your automobile a Free Service inspectionlaid down in the service book.Before driving automobiles from the Ma

27Prime the carburettor by means of the fuel pump handprimer.Starting from Cold at 0 °Ñ and Above.Shift the gearshift lever in the neutral.Pr

28depressed, as it results in overenrichment of the air-fuel mixture,and the engine fails to be started.To eliminate the overenrichment, blow through

29increases wear of tyres. Besides, sharply and heavy braking couldprovoke skiding of the automobile.When the automobile is to be operated on

3IMPORTANT!To ensure trouble-free operation of the automobiles, werecommended that You should attentively familiarize yourself withthe present

30grounds when moving along rut-roads if possible. It is verydifficult to drive the automobile on very wet graded earth roadsprovided with st

31If the engine is not started, the automobile is to beimmediately evacuated out of water by all means. If some wateris penetrated to the

327. If the automobile was operated on extremely dusty roads,as well as after fording and negotiation of natural road sectionsand off-road sections c

33ENGINEThe automobile is equipped with the four-cylinder enginewith upper valve arrangement which is shown in Fig. 20, 21.Check and, if required, tig

34preliminarily with a less force, the second one - finally; the finaltightening torque should be equal to 90-94 Nm (9.0 -9.4 kgfm).As req

35- having adjusted the clearances of one cylinder, turn thecrankshaft through half a turn and adjust the clearances on othercylinders (3, 5, 7, 8).Th

36The level of oil in the engine crankcase should be in registerwith the mark "Ï" on oil dipstick 3 (Fig. 20). Measure the oillevel 2-3 min

37When driving the automobile, watch the functioning of theoil pressure transmitters. The low oil pressure warning transmit-ter must operate at an oil

38Maintenance of the Fuel SystemFuel tanks. To wash the fuel tanks, remove them from theautomobile. Flush the fuel tanks with clean gasoline.Fuel fil

39Maintenance of the carburettor includes periodic checks andadjustment of fuel level in the float chamber, adjustment of thecrankshaft slow idling se

4and when riding under hard service conditions (at heavy loadsand a high crankshaft speed) independing on ambient temperature.3. Shift the gearbox

40After adjustment done, place on the adjustment screw a newcap, that the content of mixture could be only leaning (byscrewing in the cap).

41Accelerator pedal. While in service, it may become necessaryto adjust the carburettor throttle full opening and readjust theaccelerator pedal positi

42Maintenance of the Engine Cooling SystemThe engine cooling system (Fig. 36) is filled with coolantsimultaneously with the heating system.Low-freezin

43Never mix the coolants of different grades. If the level ofspecial fluid in the system has dropped and fluid of the samegrade is not available, top

44cally operated thermostat and the shutters controlled by thedriver.In cold weather, we recommend to encase the cooling systemfor warmth-keep

45Drain coolant from the cooling system through two cocks. Oneof them is arranged on the radiator lower reservoir, the other onthe cylinder block.

46Fig. 39. Diagram of TransistorIgnition System:1 -ignition coil; 2 -transistor switch;3 -pickup-distributor; 4 -spark plug;5 -fuse unit; 6 -emergency

472. Remove the cap from the magnetic pickup.3. Make sure that the contact segment of the runner is setagainst the cap terminal marked with numeral &q

48on the octane selector scale. Each division of the scalecorresponds to a change of the ignition timing by 4°C in thedegrees of the cranksha

49adjustment of the pedal free travel, to periodical checks on thelevel of fluid in the reservoir of the clutch hydraulic systemmaster cyli

5INTRODUCTIONThe automobile ÓÀÇ-31512 (Fig. 1) - passenger/cargo, withsoft open-top four-door body and tail gate, with driving axleswithout hub drives

50Maintenance of the GearboxMaintenance of the transmission consists in checking the oillevel (Fig. 45), in changing the oil at established i

51Maintenance of the Transfer Box Maintenance of the transfer box in service comes tochecking the oil level and changing oil at intervals spe

52Apply grease according to the directions of LubricationTable.Do not apply too much grease to the splined joint as it wouldbleed through t

53When inspecting the steering knuckles of the front axle,check to be sure that the adjusting bolts 27, the steering stop 28are in serviceable

54Fig. 49. Steering Knuckle:à -indicating groove; á -indica-tor;I -right-hand steering knuckle;II -left-hand steering knuckle;III -wheels disengaging

553 -steering knuckle joint; 4 -gasket; 5 -grease fitting; 6 -kingpin; 7 -cover plate; 8 -steering knuckle housing; 9 -kingpin bushing; 10 -bearing; 1

56SuspensionThe suspension of automobiles ÓÀÇ-31512, ÓÀÇ-311514,ÓÀÇ-31519 (Fig. 52) consists of four longitudinal semiellipticsprings functioning

57Fig. 52. Front Suspension of Automobiles ÓÀÇ-3152, ÓÀÇ-31514, ÓÀÇ-31519:1 -front hanger; 2 -frame; 3 -buffer; 4 -cover plate; 5 -shock

58Fig. 53. Front Spring Suspension:1-longitudinal lever; 2-tie-rod; 3,9-rubber-metal joints; 5-longitudinal lever hinges; 6-rubber joints; 7,8-nuts; 1

59Fig. 54. Rear Suspension on Small-Leaf Springs:1-shock absorber hanger; 2-spring; 3-shock absorber; 4-frame; 5-cover plate; 6-U-bolt; 7-pa

6Fig. 1. Overall Dimensionsof Automobiles ÓÀÇ-31512and ÓÀÇ-31519 (Dimensionsare given for reference)* For automobiles with frontspring suspensionNote.

60Maintenance of the front spring suspension comes tochecking and tighting the joints of longitudinal lever, tie-rod andtransverse stabilizer.

61Wheels, TyresAttachment of the spare wheel is shown in Fig. 56. Whenopening the tail gate, swing the hinged wheel carrier togetherwith the spare whe

62To provide uniform wear of tyres, carry out tyre rotation asa preventive treatment.When rotating the cross-ply tyres, introduce the spare wheeltyre

63Wheel Hubs The hub design is illustrated in Fig. 49, 50, 60.Maintenance of the wheel hubs consists in checking thewheel hub bearings for

646. Tighten the adjusting nut of the hub bearings with the aidof a wrench applying a hand effort to the wrench tommy bar 300-350 mm long until the wh

65CONTROL SYSTEMSSteering gearThe automobile steering gear is safe to handle in service, thesplined steering shaft is provided with the cardan joint.T

66If radial play in the joint of the tie-rod tip is detected, turnoff the plug 1 against the stop (Fig. 63), and then unscrew it byhalf-turn and in th

67Fig. 65. Steering Column of Automobiles ÓÀÇ-31514, ÓÀÇ-31519, ÓÀÇ-3153:à -steering column with antitheft device and with switches located under stee

68If radial play in the joint (axial displacement of the centercross in the bearings) is detected, carry out an additional stop-punching of the bearin

69Filtrate oil preliminarily using a filter with absorption trap not morethan 40 µm.Oil filling capacity is 1.1 l .Change oil and replace the filter

7Fig. 2. Overall Dimen-sions of AutomobileÓÀÇ-31514 andÓÀÇ-31519 (Dimen-sions are given forreference)* For automobiles withfront spring suspensionNote

70change the number of the adjusting shims 11 in order not todisturb the adjustment of the safety valve.Brake SystemMaintenance of the Service BrakesP

71If one of the hydraulic brake circuits is a failure, the warninglamp on the instrument panel lights up.Periodically remove the brake drums and cle

72done correct, the front wheels are locking first than the rearones. If the rear wheels are locking first, unscrew the bolt 4through 1-2 bolt flats

731. Jack up the wheel which brake is to be adjusted.2. Check the adjustment of the wheel hub bearings forcorrectness and carry out the

74Fig. 70. Front Wheel Brake:1 -brake backing; 2 -bridge pipe; 3 -wheel cylinder; 4 -bleeder valve; 5 -coupling; 6 -shoe return spring; 7 -brake shoe

754. Screw out the by-pass valve through1/2 - 3/4 of a turn, then press the brakepedal several times. Depress the pedal quicklyand release it

765. With the brake pedal pressed down, tightly screw in the by-pass valve of the wheel brake cylinder, remove the hose and putthe cap on the valve.6.

77pack with fresh grease, making sure grease does not get on thedrum and friction linings. When disassembling the parking brakemechanism, clean the br

78Fig. 73. Parking Brake:1 -adjusting fork; 2 -lock nut; 3 -cable end; 4 -expanding cone; 5 -blank cover; 6 -operating lever; 7 -adjusting screw; 8 -b

79Check the alternator function in accordance with ammeterreading.When the ignition and the engine are off, the ammetershows the voltage aross the bat

8Fig. 3. Overall Dimensions of AutomobileÓÀÇ-3153 (Dimensions are given forreference)

80Specific gravity of electrolyte reduced to 25 °C, g/cm3Fully charged battery Battery discharged by25% 50%1.30 1.26 1.221.28 1.24 1.201.27 1

81Warnings: 1. The overrunning clutch of the starter could befailed if the starter is keeping on after starting the engine.2. Do not wash the starter

82Front headlamps, rear lamps, backing lamp, side turn indica-tor repeaters, rear fog lamp. For replacing the lamps, undoscrews attaching the

83Maintenance of the horn amounts to periodic checking it forproper fastening, tightening the wire clamps, cleaning of dirtand dust, and also to che

84The thermal pushbutton cut-out 24 protects the lightingcircuit (see Fig. 9, 10, 11).The fuse (16A) protects the cigarette lighter circuit. Th

85Check the flexible shaft for proper installation. The flexibleshaft should be installed in that way that the radius of bendingwould be not less than

86For deaerating, unscrew the bolt of the cylinder C, press thegun handle until grease is emerged and tighten the bolt. The capacity of the chamber B

874. By stroking the tyre iron inserted on the hole of the jackhandle, lift the automobile wheel to a required height.For jacking down the wheel, thro

88the hood and strapped to it. The windshield blades with leversshould be removed.For access to the engine the hood could be set in twopositions (Fig.

89Fig. 82. Hood Lock and Safeguard:1 -hood; 2 -hood hinge; 3 -fender; 4 -wheel mud guard; 5 -hood lock hook;6 -hood lock button; 7 -hood safety catch;

9Fig. 4. Overall Dimensions ofAutomobiles ÓÀÇ-31512,ÓÀÇ-31514, ÓÀÇ-31519 pro-vided with axles with hubdrives (dimensions are givenfor reference)*

903. Open the door and release the tarpaulin.4. Remove the tarpaulin from the bolts of the windshieldframe and from the hooks of the tarpaulin framewo

91The body is ventilated through the cowl ventilator andswivelling quarter-lights provided in the extensions of the doors.Effective operation

92In the service period, check the windshield, rear window andheadlamp wipers for proper functioning, check them for reliableattaching, periodicaly

93Keep watch on the level of fluid in the reservoir not allowingit to drop below a value of 20 mm above the reservoir bottomin order to avoid failure

94If the grease mark is provided with the note"substitute", and theother periodicity of changing is indicated, use preferably thebase grease

955. Lubricate the springs with a graphite lubricant.7. Check, clean the tools, accessories and spare part set andwrap them with oiled paper or with c

96year before turning the crankshaft lubricate the engine cylinderswith 30-50 drops of engine oil.3. Clean and paint corroded areas, if any are detect

97Fig. 87. Scheme of automobileloading (unloading)Before loading check the driver's kit, accessories and spareparts in accordance with the comple

98LUBRICATING MATERIALS AND SPECIAL FLUIDSDescription of fluid or grease SAE equivalentsMotor OilsÌ6Ç/12Ã1SAE 15W-40Ì-5Ç/10Ã1SAE 10W-30Ì-6Ç/10Â SAE 10

99Fig. 88. Lubrication and Tank Chart of Automobile