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4-30

Troubleshooting

Fault

Causes

Solutions

1. The engine
cannot or is
difficult to start

• Faulty starter motor

• Replace or repair the starter motor

• Insufficiently charged battery

• Charge or replace a new battery

• Improper use of preheating lines
or plugs

• Repair or replace the preheating
plug

• Abnormal injection timing

• Check the injection timing

• Oil pipeline blockage

• Clean the oil line

• The fuel filter is blocked

• Clean or replace the fuel filter

• Water, dust, or air in the fuel
system

• Purge the air and clean the oil line

• Dirty fuel injector or low fuel
injection pressure

• Have it repaired by the local repair
point

• Malfunction of the fuel injection
pump

• Consult with dealers of the
manufacturer

• Insufficient fuel

• Refill the oil

• Blocked intake and exhaust
system

• Smoothen the intake and exhaust
system

2. Engine
knocking,
irregular
operation, or
shutdown

• Massive gas release

• Consult with dealers of the
manufacturer

• The fuel filter is blocked

• Clean the oil filter

• Dirt or air in the fuel system

• Purge the air and clean the oil line

• Oil filter clogged, dirty or faulty
nozzle

• Have it repaired by the local repair
point

• High pressure oil pipe damage Replace the high pressure oil pipe

• Insufficient fuel

• Refill the oil

• Governor connection cannot be
adjusted

• Consult with dealers of the
manufacturer

• Failure of fuel spray pump

• Consult with dealers of the
manufacturer

• Incorrect fuel injection timing or
stuck fuel injection nozzle

• Check the injection timing and oil
nozzle

3. Engine power
drop

• Air in the fuel

• Exhaust the air

• Oil supply is not smooth

• Check and clean

• Change of injection timing

• Adjust according to the specified
value

• Poor operation of fuel injector

• Check the working pressure and
spray atomization

• Air filter blocked

• Clean the filter.

• Incorrect clearance between
intake and exhaust valves or
unsealed valves

• Adjust the valve clearance

• Damaged or leaking cylinder
gasket

• Replace the cylinder gasket

• Poor operation of fuel injection
pump

• Consult with dealers of the
manufacturer

• Overheated engine

•Check if the coolant used is correct.
If there is any looseness in the water
pump and belt, it should be repaired
or replaced, and the blockage in the
water channel should be removed

Содержание U35

Страница 1: ...Operator s Manual Yuchai U35 YC35SR Hydraulic Excavator Guangxi Yuchai Heavy Industry Co Ltd GUANGXI YU CHAI HEAVY INDUSTRY CO LTD...

Страница 2: ...chine Understand and be familiar with all safety markings on the machine Keep the irrelevant personnel be away from the working area Before formally operating the machine in the working area the safet...

Страница 3: ...LIC SYSTEM 2 28 CAB FLIPPING 2 30 3 INTRODUCTION OF COMPONENTS 1 OVERVIEW OF CONTROLS 3 2 DIGITAL COMBINATION INSTRUMENT 3 3 SWITCH ASSEMBLY OF THE RIGHT CONTROL BOX 3 9 SWITCH ASSEMBLY OF THE LEFT CO...

Страница 4: ...ND MAINTENANCE SCHEDULE 5 11 REGULAR INSPECTION AND MAINTENANCE SCHEDULE CONTD 5 12 ROUTINE INSPECTION 5 13 ENGINE FUEL SYSTEM 5 14 ENGINE COOLING SYSTEM 5 16 ENGINE LUBRICATING SYSTEM 5 20 ENGINE AIR...

Страница 5: ...1 1 1 Preface...

Страница 6: ...use this machine correctly Please entrust Yuchai agent or the maintenance station to overhaul and adjust the machine and the original accessories and spare parts from Yuchai shall be used If non origi...

Страница 7: ...Product Information Machine information the nameplate of the machine is in the right front of the platform Engine information the engine nameplate is located in the middle of the engine Model ESN num...

Страница 8: ...ne in the table below When you need to purchase machine parts or want to obtain relevant information you can inform Yuchai of these codes Please record these numbers and keep them together with the pr...

Страница 9: ...1 5 Machine direction The front rear left right up and down in this manual refer to the various directions of the illustrated state Up Down Right Rear Front Left...

Страница 10: ...1 6 Composition of the machine 1 Bucket 2 Bucket cylinder 3 Bucket arm 4 Bucket arm cylinder 5 Boom 6 Boom cylinder 7 Dozer cylinder 8 Drive wheel 9 Track 10 Guide roller 11 Dozer blade...

Страница 11: ...radius mm 900 F Track length mm 2100 G Axle track mm 1620 H Ground clearance mm 350 1 Total height of boom end mm 1510 J Platform outer width mm 1740 K Engine hood height mm 1425 L Platform ground cl...

Страница 12: ...ation radius mm 5557 D1 Maximum ground level digging distance mm 5438 E Digging radius of the maximum digging height mm 2948 F Minimum radius of gyration mm 2260 G Maximum bucket depth of the dozer bl...

Страница 13: ...5 Hydraulic system Load sensitive hydraulic system Main pump theoretical displacement 45 cc r Main valve rated flow 90L min System pressure 24Mpa Oil return filter 10 m Oil suction filter 5 6 Electri...

Страница 14: ...hine body The following are all non standard attachment attachments provided by the manufacturer Buckets Bucket accessories directly mounted on the bucket arm Bucket accessories for use with quick cha...

Страница 15: ...2 1 2 Safety regulations...

Страница 16: ...necessary measures shall be taken to ensure safety Under no circumstances shall it engage in the use or operation prohibited by the instruction The excavator shall be operated and maintained by traine...

Страница 17: ...refully and work in accordance with the relevant procedures The safety prompts of this machine are indicated with words such as Danger Warning or Note Their explanations are as following Danger it ind...

Страница 18: ...verhauling please be sure to check whether all protective equipment functions normally 2 Emergency hammer and fire extinguisher The emergency hammer and fire extinguisher are installed on the right wa...

Страница 19: ...gns to fall off If the signs are damaged lost or illegible please replace them If the label is on the part that needs to be replaced make sure that the new part is equipped with a sign Please contact...

Страница 20: ...2 6 2 Safety sign pasting location The sign shown in the graphics is only the safety sign part of all signs and the rest of the function signs will be introduced in the following chapters...

Страница 21: ...nformation for attention during operation and maintenance 7 Pay attention to the danger of high pressure oil injection when adjusting the tension of the track Note 1 The points shown by figures are th...

Страница 22: ...k every 200 hours 2 Clean or replace the diesel filter element every 500 hours 3 Fuel for choice 0 light diesel fuel for temperatures above 0 C Use 10 light diesel fuel for temperatures ranging from 0...

Страница 23: ...elerator sign 18 Directions for escape warning sign 19 The engine should be shut down when inspecting and adjusting the inside of the machine 20 Beware of toxic gases Toxic gases or toxic fumes can su...

Страница 24: ...llowed to be disassembled drilled cut or hit and should be kept away from open flames or high temperatures These parts contain high pressure gas improper handling can cause injury Please have it handl...

Страница 25: ...Do not touch it directly When repairing these parts turn off the flame and wait for their temperature to drop to a suitable temperature 30 Accessory pipeline identification The above figure shows the...

Страница 26: ...constructing in a building figure out the headroom for the head the porch and the aisle etc and the load bearing capacity of the floor and ramp Ensure adequate ventilation during indoor operation Wha...

Страница 27: ...Only allowed to sit on the seat to operate the machine 4 It is not allowed to start the engine by short circuiting the starting motor 5 The machine must be warmed up in cold weather Warning 1 It is n...

Страница 28: ...ted are allowed to be opened but they must be locked 5 If there is an area at the back of the machine that cannot be seen before the machine moves back or turns a signal commander should be arranged f...

Страница 29: ...arting traveling on the road 3 Traveling or working on slopes It is extremely dangerous for traveling and operating the excavator on slopes therefore special care must be taken in this case 1 It is no...

Страница 30: ...ll or downhill otherwise the machine may tip over 9 When stopping on a slope the front dozer blade must be lowered and inserted into the soil Only after it has stopped steadily can the engine be stopp...

Страница 31: ...or crossing obstacles 13 No reversing is allowed on slopes 14 When going uphill it is necessary to ensure that the engine and hydraulic oil are properly preheated otherwise it may cause accidents 15 W...

Страница 32: ...ect guidance for ensuring your personal safety 1 Before work idle personnel inside the excavation site should be cleared out 2 Confirm that the workplace can fully support the machine before driving i...

Страница 33: ...gin should always be left when operating the hydraulic cylinder 8 For deep excavation it is necessary to avoid the bottom of the boom or the hose of the bucket cylinder from touching the ground 9 When...

Страница 34: ...ncrease its excavation force 15 Do not use the downward force of the bucket as a hand pick crusher or pile driver which will cause excessive force to be applied to the rear of the machine This not onl...

Страница 35: ...use the rotational force to compact soil or damage soil piles and walls When rotating do not insert the bucket teeth into the soil which will damage the attachment 19 Do not excavate with the traveli...

Страница 36: ...s The machine is extremely prone to overturning in the following situations that must be avoided 1 When the machine moves on uneven ground the two tracks are high on one side and low on the other or m...

Страница 37: ...machine excavates deeply under the machine 11 Traveling on frozen ground 12 When there is oil or lubricating oil on both tracks the machine is prone to slipping 6 Turn off the machine See the section...

Страница 38: ...n range of the excavator In addition to lifting method or directly driving from the dock two sufficiently strong landing plates can also be used to allow the excavator to drive onto the transport vehi...

Страница 39: ...Before servicing the machine if you need to support the machine or accessories to work support the machine or accessories firmly and do not work with only one jack supporting the machine After the ma...

Страница 40: ...ed or stuck inside the engine exhaust pipe muffler and interior of engine compartment Do not place oil soaked rags in the machine to avoid spontaneous fire and burning The user should configure a fire...

Страница 41: ...not heat a frozen battery above 15 otherwise the battery may explode Explosion prevention of the battery Warning Electric sparks or flames can cause hydrogen gas in the battery to explode To prevent...

Страница 42: ...ressure hose leaks oil or fuel it may cause a fire or operation failure resulting in serious injury or damage If the bolts are found to be loose stop the work and tighten the bolts to the specified to...

Страница 43: ...cannot be carried out on it Avoid the accumulator from being close to the fire source and avoid collision and impact on the accumulator Professional personnel shall be invited to dispose the accumulat...

Страница 44: ...the cab Then insert a hand joystick into the hand pump and follow the instructions of the hand pump to lift the cab For safety reasons support the cab with the hand joystick with one end of the protec...

Страница 45: ...3 1 3 Introduction of components...

Страница 46: ...ft attachment 3 Joystick of the right attachment 4 Pedal cover of auxiliary control pilot valve 5 Travel left joystick 6 Travel left joystick 7 Dozer blade joystick 8 Cigarette lighter 9 Pilot safety...

Страница 47: ...l combination instrument 1 Machine trademark 2 Machine status display area 3 Main display area 4 Alarm display area 5 Soft key area 6 Keys corresponding to soft keys 7 Function keys Parameters Setting...

Страница 48: ...nction Warming up Timing data in hours Timing mark flashing Machine alarm display System power supply voltage alarm Alarm when the power supply voltage is too low or too high Engine oil pressure low a...

Страница 49: ...rea when the engine coolant temperature is too high Gear display value Throttle gear Voltage display value Current system voltage in volts Fuel level gauge The alarm displays in the machine alarm area...

Страница 50: ...indicator will light up B Display during instrument operation Turn on the power supply in normal state the main screen of machine monitoring is as shown in the left After the engine is started the po...

Страница 51: ...operation data of the machine will be displayed 2 When Alarm parameter is selected the alarm setting parameters set by the machine will be displayed When the machine runs beyond the set alarm value t...

Страница 52: ...itor displays system help information It mainly displays the machine model and machine code and the next page displays the hardware and software version numbers of the monitor Oil pressure alarm Fuel...

Страница 53: ...rectly connected to the cigarette lighter component or a cigarette lighter cable can be used to provide power for other electrical equipments Note The total current capacity provided shall not exceed...

Страница 54: ...key is turned to the HEAT position the preheating indicator light comes on After preheating release the key and it will automatically return to the ON position Then turn the key to the START position...

Страница 55: ...h Controlling washing Press the rocker switch and the side with a switch mark is ON while the other side is OFF 4 High low speed travel switch Controlling the switching between high and low speed trav...

Страница 56: ...ing device or platform to move which may result in an accident Lift the left control box to the locked position the general control of the pilot system does not supply oil and the machine working devi...

Страница 57: ...ucket flips outward when it swings right turns inward when it swings left 2 Operation of excavation equipment and platform slewing mechanism boom swing type with steering head A Left attachment joysti...

Страница 58: ...hment joystick is pressed the left attachment joystick can be used to control the swing of the steering head Then press the reset button of the left attachment joystick to return to the platform slewi...

Страница 59: ...n models speed control is achieved through auxiliary operation of the pilot valve Lift the auxiliary control pilot pedal forward and then lower the pilot valve pedal downward to achieve high speed mac...

Страница 60: ...to increase the accelerator Before stopping the engine push the lever all the way forward 2 Electronic accelerator for models of electronic accelerator Turn the engine accelerator knob to the right a...

Страница 61: ...justment handle the backrest can be adjusted in 5 positions release the handle and the backrest locks in place Headrest adjustment move the headrest adjustment handle backwards and then push and pull...

Страница 62: ...ormality in the seat belt you must replace the seat belt every 3 years The production date of the seat belt is displayed on the manufacture date label of the seat belt During operation be sure to wear...

Страница 63: ...wind speed setting value Press this key in the cooling mode to memorize the current status cooling volume setting value wind speed setting value and the cooling mode is cancelled The screen in middle...

Страница 64: ...The screen displays press this key again to cancel the external circulation mode in the external circulation mode the system enters the internal circulation mode and the graphics disappears Increase...

Страница 65: ...has been suitable or even warmer after the heating has been turned on for a period of time The method select the heating mode press the key Decrease wind speed to select the minimum wind speed and pr...

Страница 66: ...n mode and settings including the state before shutdown mode and settings When you use this mode again the machine will automatically restore the previous settings including the state before the last...

Страница 67: ...s pressing to automatically search for a radio station holding to manually adjust the radio frequency in one step Volume adjustment control in FM radio mode In FM radio mode press the VOL to decrease...

Страница 68: ...current volume by only one level Hold the VOL to quickly and continuously decrease increase the current volume step by step until the button is released Refer to the operating steps in section 1 3 fo...

Страница 69: ...nd it is necessary to escape from the cab please smash the glass by aiming the pointed cone of escape hammer to the rear window glass until the glass is broken and then escape from it 3 Front window f...

Страница 70: ...4 1 4 Operation guide...

Страница 71: ...ne radiator and battery 7 Check the hydraulic device fuel tank hose and joints for oil leakage you can check whether there are obvious oil traces on the parking floor 8 Check whether each component tr...

Страница 72: ...heck the attachment cylinder connection rod and hydraulic hose for cracks excessive wear or clearance If an abnormality is found it must be replaced and repaired 5 Check the hydraulic device hydraulic...

Страница 73: ...r and alarm lights on the digital combination instrument If an alarm is found please first troubleshoot the relevant faults before starting the engine A Starting the engine at normal temperature Turn...

Страница 74: ...y for the operation one person to sit in the operator s seat and the other to operate the battery 2 When starting with another machine the two machines should not come into contact 3 When connecting a...

Страница 75: ...off 2 Check for oil leakage lubricating oil fuel and water leakage 3 Check if there is any abnormality in the sound vibration heating smell and instrument of the machine If an abnormality is found re...

Страница 76: ...hem up 5 Do not jump on or off the machine and do not get on or off the machine while it is in motion 6 Before leaving the machine the working device must be completely lowered to the ground and then...

Страница 77: ...er of gravity 7 When the machine is moving only the driver is allowed to drive on the machine and no passenger is allowed on the machine 8 Before operating the steering joystick check the direction of...

Страница 78: ...speed of the machine is abnormal at low temperatures it is necessary to thoroughly warm up the machine In addition if the lower body of the machine is blocked by soil and the travel speed is abnormal...

Страница 79: ...ore turning 1 Steering when the machine is parked Steering left When traveling forward push the right travel joystick forward to turn the machine to the left When reversing pull the right travel joyst...

Страница 80: ...if you operate the swing joystick slowly the upper structure will rotate slowly Pay attention to the operating speed of the joystick 1 If the machine is equipped with a steering head operate the sele...

Страница 81: ...ot valve is operated within 15 seconds of shutting down the engine the attachment can still be lowered to the ground In addition the control pilot valve can be operated to release the remaining pressu...

Страница 82: ...essary to ensure that the machine is in boom swinging mode before swinging the boom 6 Dozer blade operation Push the dozer joystick downward and the dozer blade cuts down When being pulled up the doze...

Страница 83: ...g the attachment can cause the machine to lose balance and tip over so it is important to avoid such operations When the bucket is loaded slewing towards the downhill direction is very dangerous If th...

Страница 84: ...e between the boom and the bucket arm should be90 110 degrees When only one side of the track is stuck in the mud lift the track with the bucket and then place a wooden board or log under it to drive...

Страница 85: ...e machine to a 30 angle towards the machine Depending on the depth of excavation there may be some differences but it is important to operate within the above range as much as possible rather than ope...

Страница 86: ...ore leaving 4 Backfill or leveling In order to fill the trench flat the excavator should travel perpendicular to the trench After cutting the dozer blade into the soil to a certain depth release the d...

Страница 87: ...ght figure 2 The dozer blade cannot withstand large or unstable weights otherwise the dozer blade or track system may be damaged 3 When walking the bulldozer should not hook any objects otherwise the...

Страница 88: ...or safety reasons it is important to understand the signals of each other and work carefully Place the excavator in working condition and operate the bucket arm by facing the bucket until the holes in...

Страница 89: ...ine will suddenly move causing serious personal injury or accident So before getting up from the seat be sure to put the safety lock control lever in the lock position Park the machine 1 Place the lef...

Страница 90: ...4 21 6 After the engine shuts down reset the shutdown lever...

Страница 91: ...ides of the flip window at first By operating the handle of the flip window handle lock you can slide the flip window up and down When the flip window is pulled to a proper position you can push the f...

Страница 92: ...free from water snow ice grease or oil 7 Do not correct steering on a ramp as there is a risk of the machine tipping over If it is necessary to turn drive out of the ramp to correct the direction and...

Страница 93: ...Do not operate any other joystick or pedal 5 Stop driving and extend the stick position B in the figure so that the front part of the excavator track is tilted down to the bottom plate of the transpor...

Страница 94: ...ehicle does not move 3 Install a ramp between the transportation vehicle and the machine ensuring that both sides of the ramp are on the same level The maximum slope of the ramp shall not exceed 15 de...

Страница 95: ...l specifications According to the accessories and options actually installed the hoisting method will be different due to different dimensions weight center of gravity distribution etc When hoisting t...

Страница 96: ...e extended Check the fuel tank for any water present 4 Cooling system Before operating the machine in cold weather check the coolant to adjust the appropriate mixing ratio Use antifreeze suitable for...

Страница 97: ...mance of the coolant and add antifreeze to ensure its antifreeze strength is at least 20 Coolant not containing anti corrosion agents due to climate reasons should be added with the agents such as 5 a...

Страница 98: ...e cylinder piston rod 2 Fill all parts with oil and grease 3 When the machine is stored for a long time water in the atmosphere will enter the oil Before or after starting the engine check the oil in...

Страница 99: ...urge the air and clean the oil line Oil filter clogged dirty or faulty nozzle Have it repaired by the local repair point High pressure oil pipe damage Replace the high pressure oil pipe Insufficient f...

Страница 100: ...ore to the recommended oil level Abnormal injection timing Adjust according to the specified value There is water in the cylinder and fuel Check and replace the fuel 8 Failure of battery charging Loos...

Страница 101: ...ient oil in the system Refill the oil Safety valve failure Consult with dealers of the manufacturer 15 No part can work Hydraulic pump damaged Consult with dealers of the manufacturer A Noise of the o...

Страница 102: ...alers of the manufacturer Oil leakage of the control valve Consult with dealers of the manufacturer 22 Air conditioning system noise Loose electrical connectors causing abnormal clutch noise Insert th...

Страница 103: ...4 34 conditioning switch cooling degree Too much water in the system and internally blocked with ice Replace the drying bottle The electronic fan or its relay is damaged Repair or replace...

Страница 104: ...5 1 5 Maintenance...

Страница 105: ...ensor and the filter element shall be cleaned frequently Clean the radiator core frequently to avoid blockage Frequently clean and replace the fuel filter element Clean the electrical components espec...

Страница 106: ...heck the tools and parts you carried to make sure that nothing has fallen into the machine Regular inspection and maintenance Regular inspection and maintenance shall be carried out in accordance with...

Страница 107: ...an easily solidify at low temperatures especially when it is below 15 C 5 F Therefore it is necessary to replace fuel that matches the ambient temperature To prevent moisture in the air from condensin...

Страница 108: ...ystem make sure that the temperature has dropped and the pressure has released in the hydraulic cylinder pipeline When loosening plugs screws or hose connections do not stand in front of the parts Bef...

Страница 109: ...material affecting their normal function and also becoming potential safety hazards Such phenomena are not easy to determine So these parts must be forcibly replaced after the specified usage period...

Страница 110: ...of Construction Machinery Lube of the driving reducer Overload use the gear oil GL 5 Winter summer SAE80W 90 Lube of the driving reducer Overload use the gear oil GL 5 Winter summer Lube of the guide...

Страница 111: ...diameter mm 6 8 10 12 14 16 18 20 Tightening torque Nm 8 8 640 9 12 22 30 45 59 78 104 124 165 193 257 264 354 376 502 10 9 900 13 16 30 36 65 78 110 130 180 210 280 330 380 450 540 650 12 9 1080 16 2...

Страница 112: ...N m Nominal moment min max M12X1 5 6 20 15 25 M14X1 5 8 38 30 45 M16X1 5 8 10 45 38 52 M18X1 5 10 12 51 43 85 M20X1 5 12 58 50 65 M22X1 5 14 15 74 60 88 M24X1 5 16 74 60 88 M26X1 5 18 105 85 25 M30x2...

Страница 113: ...1 4 60 42 76 G5 8 69 44 94 G3 4 115 95 135 G1 140 115 165 G1 1 4 210 140 280 G1 1 2 290 215 365 G2 400 300 500 ORFS rotary nut N m UNF thread Marking specifications min max 9 16 18 4 14 16 11 16 16 6...

Страница 114: ...chanical parts and hoses Fixation of bolts and hydraulic joints Operating conditions of control components work lighting and indicator lights Diesel engine work conditions 2 Engine fuel system Check t...

Страница 115: ...an the oil suction screen Replace the filter element for the hydraulic oil return and pilot oil line Check the system pressure 7 Battery Check the electrolyte level Check acidity and charging status 8...

Страница 116: ...reaks or deformations on the elastic connectors and accessories 3 Check the fixation and connection of the hydraulic devices 4 Check the appearance of mechanical parts 5 Check the working conditions o...

Страница 117: ...ies from the tank Condensate and sediment are discharged every 100 hours Loosen the oil valve to allow the condensate and sediment to flow out Once fuel flows out reinstall the drain plug Based on the...

Страница 118: ...ever 2 Loosen the vent plug on the fuel filter by several turns 3 When there are no air bubbles in the fuel flowing out of the vent bolt tighten the screw plug 4 Open the vent plug on the fuel plunger...

Страница 119: ...e genuine filter element 1 Remove the fuel filter 2 Clean the gasket surface of the filter seat with a lint free cloth 3 Discard the O ring 4 Install a new O ring Note Check whether there is an old se...

Страница 120: ...gine is cold the coolant level shall be between the highest and lowest water levels Warning When the radiator cap is unscrewed hot coolant will spray out Cover unscrewing method After the system cools...

Страница 121: ...perform the first replacement Replace twice a year thereafter once each in spring and autumn 1 Remove the radiator water tank cover unscrew the water valve and drain the coolant 2 Clean the cooling ci...

Страница 122: ...osion River water contains a large amount of calcium and other impurities If river water is used scale will form and adhere to the engine cooling water channel and radiator causing heat exchange failu...

Страница 123: ...be located between the minimum L and maximum H marks 3 If necessary you can fill oil from the oil port to make the oil level reach the specified value Warning The components and oil are still at high...

Страница 124: ...ours thereafter Replace oil filter 1 Clean the area around the filter seat remove the oil filter and clean the sealing gasket surface on the filter seat 2 The oil filter has two gaskets which are lubr...

Страница 125: ...dicator light on the digital detector is on or for every 500 hours the air filter should be replaced 2 Intake pipeline inspection Check the intake pipe every day for signs of wear pipe damage loose cl...

Страница 126: ...e parts to break or fly out Warning Too high noise of the machine may cause temporary or permanent hearing problems When performing engine maintenance and working under prolonged exposure to noise ear...

Страница 127: ...nternal pressure when removing the fuel filler flange cover 1 Check the oil level in the hydraulic oil tank Check the hydraulic oil tank level every 10 hours 1 Park the machine on a level surface 2 St...

Страница 128: ...through the oil filler port on the top of the hydraulic oil tank Attention The hydraulic oil level will change with the increase of oil temperature during operation Before operation the oil level is i...

Страница 129: ...ork 2 In order to prevent oil from spraying out it is necessary to slowly rotate the cover to release internal pressure when removing the fuel filler flange cover 3 When changing the oil make sure no...

Страница 130: ...5 27 tank to reach the middle of the oil dipstick 11 Install the oil suction filter and cover the air filter...

Страница 131: ...extend or retract to the stroke end 2 Then operate each cylinder to the end of its stroke 3 to 4 times 3 Finally operate each cylinder to the end of its stroke 4 5 times to completely exhaust the air...

Страница 132: ...ht tracks and rotate the tracks forward and backward equally F Exhaust the air in the accessories If the accessory is installed run the engine at idle speed and operate the accessory pedal several tim...

Страница 133: ...O ring in the filter head groove 4 Before assembling the new filter element apply a layer of hydraulic oil on the sealing surface of the filter element and install the filter element into the filter h...

Страница 134: ...ulic oil temperature reaches 50 C perform pressure adjustment and inspection 2 Use a pressure gauge with a flexible tube with a pressure gauge range of 0 30Mpa 3 Connect M10 1 pressure gauge with a di...

Страница 135: ...wait for the oil to cool down Loosen the exhaust screw plug by two to three threads and release the air pressure in the box before removing the screw plug It is dangerous to remove the plug quickly I...

Страница 136: ...d lubricating oil from the oil filling hole until oil flows out from the oil level inspection hole 3 Check the tightening torque of the connecting bolts of the walking reducer and the rotary reducer A...

Страница 137: ...tension the track so that there is a 10 15mm deflection between the middle thrust wheel and the track as c in Figure 1 5 Remove the cover b in Fig 1 on each track frame and expose the fuel nozzle of t...

Страница 138: ...in Fig 2 4 In order to loosen the track first loosen the joint Fig 2 to let the grease flow out and then retighten it after getting the correct tension 5 In order to tension the track connect the join...

Страница 139: ...hreads and then apply the thread locking agent to the threaded joints and tighten them as per the specified torque If the bolts must be replaced they shall be replaced with bolts of the same specifica...

Страница 140: ...rocker and connecting rod 6 Lubrication point at the tail of bucket cylinder 7 Lubrication point at the head of the swing cylinder 8 Lubrication point at the tail of stick cylinder 9 Hinge point betwe...

Страница 141: ...s it is to prevent the water tank from freezing and cracking In order to prevent the heating core or water tank from freezing and cracking due to the frozen coolant please use the coolant designated b...

Страница 142: ...out 5 7mm Check the pulley for damage There is no adjustment allowance if the belt has been stretched or replace the belt if there is a cut or crack on the belt B Adjustment Loosen the bolts shown in...

Страница 143: ...e Whether there is abrasion or crack 4 Joint Any abrasion or leakage 5 Electric fan Whether it operates normally 6 Wire harness Whether there is abrasion and burning 7 Condenser Whether the surface is...

Страница 144: ...the pin can be removed Check that the working device is in a stable state and the bucket is placed horizontally Then pull up the safety lock lever on the left control box to lock the whole machine and...

Страница 145: ...fore be sure to stop the machine on a solid and flat ground before removing the rubber floor mat The operator must lift the pilot safety handle and its upper control box to lock the pilot system befor...

Страница 146: ...whether the fuse of the working electrical appliance is effective If the electrical appliance fails to work first check whether the following fuses are burnt out if so replace the fuses Note that iron...

Страница 147: ...6 1 6 Accessories guide...

Страница 148: ...mpared with a machine equipped with a bucket the load at front of the working device is larger and is unstable for the machine equipped with a breaker hammer To avoid the risk of tipping do not operat...

Страница 149: ...not walk under the load lifted by the crane Stand in a safe place where there is no danger even if the load falls Warning A qualification certificate is required to operate a crane Unqualified person...

Страница 150: ...ed ends of the two rubber tubes of the hydraulic hammer with a clean plastic bag and dust proof measures shall be taken Keep well the accessories 2 Assembly steps 1 Remove the bucket 2 Put the accesso...

Страница 151: ...broken object and keep it as long as possible If it is inclined to the surface of the broken object the drill rod may slip off the surface which may damage the drill rod and affect the piston During c...

Страница 152: ...s to loosen and damage and even damage the excavator itself Aimless impacting comes from improper insertion and shaking during use of the breaking hammer 2 Operation taboos for hydraulic breaker hamme...

Страница 153: ...6 7 3 The drill rod is moved during impact operation 4 Apply impact force horizontally or upward 5 Swing the breaker after it has penetrated the rock 6 Pecking operation...

Страница 154: ...6 8 7 Carry out crushing operations in water or muddy ground 8 Use the breaking hammer as a tool for lifting heavy objects 9 The bucket cylinder is fully extended to lift the machine off the ground...

Страница 155: ...Quick coupler 1 Bucket installation 1 Pry up with a crowbar 2 Put the bucket pin into put down the crowbar and the bucket is installed 2 Unloading the bucket 1 Pry up with a crowbar 2 Unload the buck...

Страница 156: ...ubrication shall be carried our with lubricating oil before operation and after each continuous operation for 2 to 3 hours Lubricating oil shall be filled at 5 10 times for each lubrication Fill lubri...

Страница 157: ...Guangxi Yuchai Heavy Industry Co Ltd SJ008 E35BF51S 2019 Publication Date Aug 2021 Address No 168 Tianqiao Road Yulin City Guangxi China 537005 Phone 95105432...

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