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Carter CT12 Operation & Maintenance Manual

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CT12 MINI CRAWLER EXCAVATOR
OPERATION & MAINTENANCE MANUAL
Original Instruction
Shandong Carter Heavy Industry Machinery Co., Ltd.
Add: Economic Technology Development Park, Linshu, Shandong, P.R.China
Tel: +86-539-7190561
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  • Page 1 CT12 MINI CRAWLER EXCAVATOR OPERATION & MAINTENANCE MANUAL Original Instruction Shandong Carter Heavy Industry Machinery Co., Ltd. Add: Economic Technology Development Park, Linshu, Shandong, P.R.China Tel: +86-539-7190561...

  • Page 2: Table Of Contents

    1.2.1. Before starting the engine ....................... 17 1.2.2 After starting the engine ......................19 1.3 The position of the safety labels ......................29 2 Usage Features and Performance Parameters of Carter 1.2T Excavators .............36 2.1 Usage and features ..........................36 2.2 Main performance parameters ......................38 2.3 Tailless excavator Main performance parameters ..........
  • Page 3 7.5 Transport ............................. 91 7.6 Unloading ............................91 8.Schedule ................................. 93 8.1 Engine configuration ...........................93 8.2 List of auxiliary material consumption ....................94 8.3 CT12 packing list ..........................95 8.4 Details of CT12 vulnerable parts and maintenance parts ..............97 8.5 Lifting capacity ..........................98...

  • Page 4: Foreword

    3. Use genuine CARTER spare parts for the replacement of parts. We expressly point out that CARTER will not accept any responsibility for defects resulting from non genuine parts or non workmanlike repair. In such cases CARTER cannot assume liability for any damage.

  • Page 5: Before Servicing This Machine

    The procedures in this manual do not supersede any requirements imposed by federal, state,provincial or local laws. CARTER can not anticipate every possible circumstance or environment in which this machine may be used and serviced. All personnel must remain alert to potential hazards.

  • Page 6: Declaration Of Conformity

    1.3 THE NOISE EMISSION IN THE ENVIRONMENT BY EQUIPMENT FOR USE OUTDOORS REGULATIONS 2001 (AS AMENDED) THE UNDERSIGNED, CHANGJIN LIU, REPRESENTING SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. / ECONOMIC TECHNOLOGY DEVELOPMENT PARK, LINSHU, SHANDONG, P.R.CHINA, DECLARES THAT THE MACHINE DESCRIBED HEREAFTER:...
  • Page 7 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD.

  • Page 8: Body And Engine Identification Marks

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Body and engine identification marks CT12BU EU-Version Your CARTER dealer is always ready to help so that your excavator offers the best performance. After having carefully read this manual, you will realize that much of the routine maintenance can be done by yourself.

  • Page 9: Safety

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 1 Safety 1.1 Safety information 1.1.1 Recognize safety label (a) This is the label of “safety”. (b)When you see this label on the machine or in this manual, you should be aware that it reminds of the risk of injury.

  • Page 10: Compliance With Safety Regulations

    (c) If the safety signs or the manual is damaged or lost, by an order like the same method ordering spare parts to the specified sellers and CARTER Heavy for ordering them (Order required specifying the model and serial number of the machine).
  • Page 11 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. safety lock lever firmly pull into the locked position, and then turn off the engine. If the control joystick is not locked, and accidental touching the joystick, the machine may move suddenly and causing serious injury or damage to the machine.
  • Page 12 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 8. Check machine (a)To avoid personal injury, every day before starting the machine, check the machine carefully. (b) In the tour check carefully around the machine, be sure to “check before the start of the inspection” described in the chapter all.
  • Page 13 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 12. Not-allowed to get on/off the machine at will (a) Do not jump on/off the machine when it’s moving. (b) If the machine begins to move in the absence of the operator, do not jump on the machine and tried to stop it.
  • Page 14 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. specify a signalman to organize the job,while ensuring that all workers obey the command. 18. Signalman signals and gestures (a) To set the flag on the shoulder or soft ground. If the vision is not good, if necessary, arrange for a signalman command.
  • Page 15 (for example, subject to due to roll, Falling Object shocks or tipping) , please contact with CARTER Heavy Industry dealer in a timely manner, the protective structure has to be replaced according to manufacturer’s specifications.
  • Page 16 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 25. Prevent fire (a) Check the oil spills  Fuel oil, hydraulic oil and grease leaks may cause fire disaster.  Check whether the holder is missing or loose, the hose is twisted Knot, or hose, piping friction between oil cooling is damaged, and oil cooler flange bolts are Relaxation, in order to avoid oil spills.
  • Page 17 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (a)If the fire breaks out, evacuated machines as the following:  If time permits, switch the key to the OFF (off) Position, stop the engine.  If time permits, use of fire extinguishers, (b)In case of emergency, if not open cabin, take the hammer and break the rear or side glass, to escape from the cabin.
  • Page 18 (b)This machine does not use asbestos, but counterfeit parts may contain asbestos, so be sure to use CARTER spare parts. 33. Safety handling the chemicals Direct contact with harmful chemicals on the human body can cause...
  • Page 19 35.Installed accessories (a)When installing the optional accessories, exist security or legal constraints, so please contact with CARTER dealer in advance. (b)CARTER is not responsible for the injury caused by using of unauthorized accessories or parts.

  • Page 20: Safety Operation Of The Machine

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (b) In the case of without the approval of the CARTER, for any harm caused as a result of the modification,accident or product failure,CARTER assumes no liability whatsoever. 1.2 Safety operation of the machine The machine is not intended for use in unhealthy enviroments, e.g.
  • Page 21 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3. Starting engine in cold weather (a) To complete warm-up operation. If the machine before operating the joystick does not warm up thoroughly, there will be unresponsive, resulting in accidents. (b) If the battery electrolyte is frozen, not to charge the battery or use a different power to start the engine, otherwise the battery will be the risk of fire.

  • Page 22: After Starting The Engine

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. explosion or loss of control of the machine. (d) To avoid machine equipped with crew  Only allow the operator on the machine, do not allow other multiply member.  The crew will also block the vision of the operator, resulting the unsafety of the operation.
  • Page 23 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (a) Before driving the machine to confirm the position of the lower part of the vehicle body and operation Personnel relations:  If the motor running beneath the cabin, when forward brake pedal / lever, the machine will move backward.
  • Page 24 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. to check and follow their guidance. (i) When in the tunnel, bridge, wire or other highly limited operation to slow the operation, and to pay special attention not to let the working device to come into contact with any thing.
  • Page 25 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Notes on slopes Risk of serious injury! The wrong operation may result in serious injury. 　Never attempt to go up or down a slope with a gradient greater than 30 ° , and never attempt to cross a slope with a gradient greater than 15 °...
  • Page 26 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (c) The bucket and other tools are lowered to the ground. (d) The throttle control knob gear down to 1st gear. (e) In the low-speed no-load operation of the engine 5 minutes, allowing the engine to cool.
  • Page 27 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (i) Dust, rain, fog will reduce visibility. When the visibility is down, slow down, and the use of appropriate lighting. Reversing or turning on the machine, if someone in the vicinity of the machine, will be hit by a machine or overwhelming, resulting in serious injury or death.
  • Page 28 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (b)Dumping speed of the machine faster than the speed you jump out, do not leave things to chance. (c) Be sure to wear seatbelts. (d)Operation on the slope, there is the risk of roll-over could result in serious injury or death.
  • Page 29 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. damage. (d) If the Mining Hotline instructions in your area, please contact; or direct contact with the local utility company, so that they clear all underground cables, pipes. 14.Beware of overhead bridges and other facilities...
  • Page 30 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. pressure in the hydraulic circuit and pneumatic circuit. (f) Remove the key from the key switch. (g) The safety lever pulled at Lock (locked) position. (h) Lock all access doors and box room.
  • Page 31 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (b) Loading and unloading the machine, please note the following:  Select a firm level ground.  Be sure to use the loading dock or slope.  When loading or unloading machinery, there must be a signalman.

  • Page 32: The Position Of The Safety Labels

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 1.3 The position of the safety labels There are warning labels on the machine. This chapter will explain detail of the positions and meanings of the labels. You should know the warning labels very well.
  • Page 33 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 1.Warning! Do not stay in the working range of the excavator, otherwise there is a risk of being rolled. 2. Counterweight warning Put a red eye-catching warning label on the counterweight behind the machine, and do not approach the machine 3.
  • Page 34 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5. Excavator forward direction Warning: when the excavator travel control lever (pedal) is operated forward It is the actual forward direction of the excavator. 6. Warning! Working range of excavator Keep a distance from the excavator operation area! Otherwise there is a risk of being bruised 7.
  • Page 35 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 9. Diesel tank marking Warn users of the time to fill different brands of high-quality diesel at different ambient temperatures, and to replace the filter element and clean the oil tank! 10 . Leave seat warning sign 11.
  • Page 36 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 13. Noise identification 14. Safety lever "lock, open" sign 15. Warning labels-Using when checking and maintaining. 16. High voltage line warning sign...
  • Page 37 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 17. Warning to prevent high temperature scald. 18. TOPS/ROPS certification 19. Lifting sign Indicates the point identification of the lifting position 20. Suffix Engine model decal-V74（(for YANMAR 3TNV74F Engine)）...
  • Page 38 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 21. Lubrication cycle table 22. Cigarette lighter logo 23. Slope warning sign...

  • Page 39: Usage Features And Performance Parameters Of Carter 1.2T Excavators

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 2 Usage Features and Performance Parameters of Carter 1.2T Excavators 2.1 Usage and features are provided with excavating, crushing, ditch cleaning, drilling and Carter 1.2T Excavators bulldozing, with their attachments quick hitched and thus its utilization up greatly. In addition, they are easy to operate and transport and flexible to work at narrow site.
  • Page 40 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. garden cultivation, desilting and others. The excavator are equipped diesel engines, domestic main pumps and rotary motors, traveling motor, featuring comprehensive guarantee, durability and flexibility. Excavators are able to equipped with multiple work equipments, such as quick hitch, log grab, ripper, leveling bucket, auger and narrow bucket, as well as optional roof, radiator and others, so as to meet your needing.

  • Page 41: Main Performance Parameters

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 2.2 Main performance parameters Appearance parameters CT12BU/CT12B4U Overall dimensions Unit:mm A Wheel track 1062 B Overall length of track 1404 C The counterweight ground clearance D Tail turning radius E Chassis width(scalable) 850/1100...
  • Page 42 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Working parameters n12.C Overall dimensions Unit:mm A Max. digging radius on ground 3494 B Max. digging depth 1830 C Max. digging height 3062 D Max. unloading height 2074 E Max. vertical digging depth 1613 F Min.
  • Page 43 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Performance parameters CT12BU CT12B4U Overall dimensions YANMAR 3TNV70-SSY YANMAR 3TNV74F Operating mass（ kg） 1200 Standard bucket capacity 0.03 （ m³） Rated power( kw /r/min) 10.3/2200 11.2/2400 Travel speed (km/h) Swing speed (r/min) 11.5 Arm digging force（KN）...

  • Page 44: Overview On Carter 1.2T Excavators

    Therefore, a Carter 1.2T excavator is divided into work equipment, upper rotary and traveling mechanism.（Picture for the 1.2T model pilot operating model）...

  • Page 45: Work Principle Of Excavators

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3.2 Work principle of excavators Diesel engine changes the chemical energy of diesel into mechanical energy that is then altered with hydraulic gear pump to hydraulic energy that is distributed to each actuating element (such as hydraulic cylinder, swing motor and traveling motor).

  • Page 46: Basic Structure Of Carter 1.2T Excavators Mechanical System

    Swing mechanism could turn the work equipment and upper rotary leftwards and rightwards, so as to do the excavating and the unloading. Carter 1.2T excavator’s swing mechanism has to fix the rotary table onto frame and has it swing flexibly, without any inclining risk. Therefore, Carter 1.2T excavator is equipped with a slewing support (supports) and a slewing drive (power of turntable slewing), which are called by a joint name as swing mechanism.
  • Page 47 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. c. Bucket 1.Basic requirements The longitudinal profile of bucket meets the law of motion of various materials inside of bucket, facilitating the material flow and minimizing the loading resistance and thus fulfilling the bucket.
  • Page 48 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD.

  • Page 49: Hydraulic System Structure Of Carter 1.2T Excavators

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3.4 Hydraulic system structure of Carter 1.2T excavators I. Rotary motor II. Main pump...
  • Page 50 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD.
  • Page 51 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Ⅲ.Traveling motor Picture Two-speed motor and Hydraulic schematic diagram Max. input flow（L/min） 18.4 Motor displacement (ml/r) 8/15.4 Max. work pressure (Mpa) Control oil pressure (Mpa) Motor Head Optimum working viscosity (mm²/S) 16-25 Max. output torque (N.m) 53.9...

  • Page 52: Hydraulic Schematic Diagram

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3.5 Hydraulic schematic diagram 3.5.1 Main valve function diagram （Figure 1.2 T tailless pilot operated main valve CT12BU/CT12B4U）...
  • Page 53 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3.5.2 Hydraulic schematic diagram...

  • Page 54: Electrical System Diagram

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3.6 Electrical system diagram...

  • Page 55: Service Technologies Of Carter 1.2T Excavators

    4 Service Technologies of Carter 1.2T Excavators Being of high temperature and pressure, the Carter 1.2T excavator could have the hydraulic oil temperature as high as 85℃, the engine silencer temperature as high as 700℃ and pressure as high as 18MPa. Therefore, the operators should be specially trained to obtain the proper certificates and to be familiar with the contents in this manual before the operations.
  • Page 56 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3. Preheating of machine on cold days If it is cold, engine is difficult to start up, fuel may be frozen and hydraulic oil may increase its viscosity. Therefore, selection of fuel should be dependent on environment temperature.

  • Page 57: Operational Essentials

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 4.3 Operational essentials 1. Traveling Use the traveling handles. (1) Straight Forwards or backward move the handle, running the machine forwards or backwards. (2) Steering Left turn in situ: backward shift the left handle and meanwhile forward push the right handle.
  • Page 58 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 2.2 Basic excavation 2.2.1 Before excavation, the arm cylinder should have angle with the arm as 90°, bucket with ground to be excavated as 30°. Only in such case, can each cylinder have the max. excavating force. It is suitable for relatively hard soil, so as to decrease the excavating resistance.

  • Page 59: Operational Precautions

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 4.4 Operational Precautions 4.4.1 Safety Button operation Optional:May increase according to the customer request Push button switch 1. Before starting the engine, it is necessary to put the warping O of SAFE button in Figure 1 in a press state, otherwise the engine cannot be started to prevent safety accidents caused by misstart.
  • Page 60 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Schematic diagram of mechanical control instrument： Voltage alarm Oil pressure alarm Water temperature alarm Preheat instructions Lights Menu Fuel Working hours Voltage value Engine speed The time and speed are shown alternately every 5 seconds 1.
  • Page 61 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3. Engine oil pressure alarm indication Monitor the engine oil temperature. If the engine oil pressure is lower than the normal level, the alarm light will be on and the buzzer will sound. At this point, stop the engine and check.

  • Page 62: Prohibitions And Precautions For Hydraulic Excavators

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 4.4.3 Prohibitions and precautions for hydraulic excavators Avoid the landsliding and the stone falling. Avoid any striking of work equipment. Avoid the bucket from colliding with other vehicle body, the loaded bucket crossing over other vehicle cab or persons.

  • Page 63: Maintenance Of Carter 1.2T Excavators

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5 Maintenance of Carter 1.2T Excavators 5.1 Safty precautions for servicing, disassembly and reassembly Safty precautions for servicing Most accidents during servicing arise from carelessness. Please remember that safty involves both the welfare of the employees and improved work efficiency.

  • Page 64: Preparation For Disassembly

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 3. Disassembly and assembly  Do not wear gloves when using hammers.  Use rods of the specified soft material for removing pins. Do not use a hammer as a pad.  Do not place fingers in holes when centering.

  • Page 65: Daily Inspection And Maintenance

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5. Reassembly  Clean all parts before assembly. Repair any scratches or dents. Take special precautions against dirt and dust.  Parts with rust-preventive coatings must be assembles only after removing the corting.
  • Page 66 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Change the hydraulic ★ Change the hydraulic ★ oil filter elements Check if the fuel pipe ★ is cracked or bent. Change the oil- ★ waterseparator Check the defection ★ oftrack Maintenance of ★...

  • Page 67: Technical Maintenance

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5.4 Technical maintenance 5.4.1、 Grease Interval (h) Parts Quantity 1000 2000 Pivot at base of boom Pivot at base of Stick and bulldozer ★ Lubrication of Pivots of bucket and work equipment connecting rod...

  • Page 68: Slewing Bearing - Every 100H

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. ● Others Pivot of Bulldozer cylinder; pivot of Boom cylinder and stick cylinder; pivot at base of bucket cylinder and deflection head cylinder pivot 5.4.2 Slewing bearing - every 100h 2.1 Park machine on the flat ground.

  • Page 69: Engine Oil

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. External meshing gear 93 of slewing bearing every 100h Lower the bucket onto the ground Turn off the engine Park machine on the flat ground. Lower the bucket onto ground. Idle engine at low speed for 5min.
  • Page 70 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. According to the temperature range during the interval, select the viscosity of oil listed in the table below: Recommended engine oil brand: 15W—40 engine oil Inspection of engine oil level ―――-each day Change of engine oil ―――every 250 h Change the engine oil filter ―――every 250 h...

  • Page 71: Hydraulic System

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 12. Remove the oil filter cap to add the recommended oil into engine. After 15 min, check if the oil level is between the circle markers. 13. Put the oil filler cap back on.
  • Page 72 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Caution: inspection and maintenance of hot and pressure parts may cause them or hydraulic oil to spray out, leading to personal injury! While removing the bolts or nuts, do not have your body facing them, as the hydraulic parts, even if they cools down, still have pressure.
  • Page 73 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Please use the genuine Carter excavator parts Interval (h) Check points Abnormal Measures Hose surface Leakage 1 Replace it Leakage 2 Hose end Every day Replace it Leakage 3 Connector body Tighten or replace the hose or O-ring...

  • Page 74: Fuel System

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5.4.5 Fuel system The division of ct12 product series is based on different selected engines, mainly involving YANMAR 3TNV70-SSY / 3TNV74F diesel engine, Kubota D722-E48-CBH diesel engine and YOUPU diesel engine. Finally, a brief introduction of various models of diesel engines is attached.
  • Page 75 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Drain water from oil-water separator check ---every 100h Oil-water separator is used to separate the water or sediment from fuel. Oil-water separator has a float able to rise up when water becomes full. When there is water or sediment in the collector of oil-water separator, please drain oil-water separator .
  • Page 76 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Caution: Always firstly disconnect the battery clips (-) away from the ground and then lastly connect it. Always keep the terminals at top to battery and the breather clean, to avoid the battery from discharging. Check if the battery terminal is loosened or rusted.
  • Page 77 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Caution: care must be taken to avoid the metal scrap from flying out, leading to personal injury. Wear the goggles or the safe glasses or safe devices suitable for operations! Change the bucket Caution: while hitting out or into the connecting pin, care must be taken to prevent against any personal injury due to out-flied metal scrap.

  • Page 78: Telescopic Chassis

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5.5 Telescopic chassis  The distance between the tracks of the telescopic chassis must be completed before the work. Changing the distance between the tracks during the work may cause great damage to the machine.
  • Page 79 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Metric bolts and nuts Thread dimensions Standard torque (N.m) Thread dimensions Standard torque (N.m) 12±3 160±30 28±7 240±40 55±10 460±60 100±20 1600±200 2. Torque of main components: (N.m) Thread dimensions Recommended torque M12 bolts fixing the traveling motor 120±10...

  • Page 80: Maintenance Under The Special Cases

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 5.6 Maintenance under the special cases Operational conditions Precautions for maintenance Before operation, check all the drain plugs are tightened up. Moor land, rainy or snowy After operation, clean machine and check bolts and nuts for break, damage, looseness or loss.

  • Page 81: Troubleshooting

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 6 Troubleshooting 6.1 General To ensure excellent performance of Carter excavator, all components and parts are of high quality. Machine’s performance and service life are determined not only by manufacturing quality and assembling quality, but also maintenance quality.
  • Page 82 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Symptom Possible causes How to solve The main pump supplying fuel to unilateral Change crawler is damaged. The main valve rod is stuck and the spring is Repair or change The unilateral broken...
  • Page 83 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. The left and right traveling motors fail Repair The oil pipe explodes Change Wrong adjustment of variable point of main valve or serious internal leak of a pump Adjust or repair Deviation during...
  • Page 84 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Low pressure of overload overflow valve or Adjust to specified pressure. Change the spring breaks the spring if it is broken. Wrong grade of hydraulic oil for excavator Change the hydraulic oil Symptom...
  • Page 85 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Uneven engine rpm Adjust The bearing of working device is not Apply lubrication oil or change the lubricated or scraped shaft or sleeve Damaged sealing components Change the sealing components A groove is found on the piston rod due to...

  • Page 86: Troubleshooting Of Electrical Control System

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 6.4 Troubleshooting of electrical control system Fault codes of electrical control system of excavator ⑴ The engine fails to start ⑵ The engine flames out during operation ⑶ The engine fails to flame out ⑷...
  • Page 87 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Possible causes Standard value in regular condition and reference value of fault diagnosis Between 105 and Unlocked 1MΩ Locked Below 1Ω ★Turn the start switch of engine to OFF as preparation and keep it at OFF during diagnosis.

  • Page 88: Troubleshooting Of Diesel Engine

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 6.5 Troubleshooting of diesel engine Symptoms of failed startup of engine: When starting the engine, the starter drives the engine but the engine fails to be started. Possible causes: (1) Low battery; (2) Battery terminal is rusted or loose;...
  • Page 89 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (5) Inspect and repair the engine. Only when the engine works well can the start-up fail never or seldom happen. Check if it is hard to start the engine Engine symptom: (1) Starter runs at correct rpm and drives the engine; however, it is hard to start the engine.
  • Page 90 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. (8) Driving gear of starter is stuck by engine flywheel gear ring; (9) Driving gear of starter adheres to the bearing. (10) The starter fails to drive the engine; (11) Engine fault; How to solve: (1) Check if the battery is fully charged;...

  • Page 91: Transportation

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 7 Transportation 7.1 Precautions for transporting the machine Shipping weight: Refer to the specifications table. CAUTION Select a route for transporting the machine based on the road width and clearance, and the height and weight of the machine.

  • Page 92: Machine Slinging

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 7.3 Machine slinging CAUTION  Never suspend the machine if any person is on the machine or the implement.  Use wire ropes strong enough for the weight of the machine.  Do not suspend the machine in any way other than that explained on the following page.

  • Page 93: Loading Machinery

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 7.4 Loading machinery The following rules shall be followed for loading: The orientation of the machine is as follows:  With working device: put the working device at the front and walk forward.

  • Page 94: Transport

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 7.5 Transport (a) Place spacer blocks at the front and rear of the track. To prevent the machine from moving during transportation. The machine shall be tied firmly with iron chain or steel wire rope of appropriate strength.
  • Page 95 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 2) Unloading bracket: when the transportation forklift lifts the bracket and starts to tilt towards the container, walk forward slowly until the bracket firmly contacts the ground, 3) Remove the bracket: when the bracket is placed firmly on the ground, slowly raise the machine according to the position of the hanging shop to completely separate it from the bracket, and slowly move forward until the machine firmly contacts the ground, 4) Install the roll over frame assembly: after the machine is stable, install the roll over frame on the machine。...

  • Page 96: Schedule

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 8.Schedule 8.1 Engine configuration Attachment Ⅰ: 3TNV70-SSY Engine Model 3TNV70-SSY Type 4 cycle, in-line, Water-cooled Diesel engine Combustion Indirect injecction System Aspiration Natural No. of Cylinders Bore × Stroke 2.756 x 2.913 in. (70 × 74 mm) Displacement 52.105 cu in.

  • Page 97: List Of Auxiliary Material Consumption

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. AttachmentⅡ: 3TNV74F-SPSY Engine Model 3TNV74F-SPSY Type 4 cycle, in-line, Water-cooled Diesel engine Combustion System Indirect injecction Aspiration Natural No. of Cylinders Bore × Stroke 2.756 x 2.913 in. (74 × 77 mm) Displacement 60.585 cu in.

  • Page 98: Ct12 Packing List

    Tool kit Individual Store random tools series General Store random tool kits, Tool kit Individual purpose spare parts, file bags, etc. Attached data list of CT12 series excavator Numb Specification Item name Company Quantity Remarks and model Complete machine CT12 series...
  • Page 99 Double end wrench 19-22 Adjustable wrench 300mm 5、6、8 Inner hexagon spanner 1 piece each Pressure bar grease gun 200cc List of attached spare parts for CT12 series excavator Number Name Standard Quantity Remarks M6-180°GB1152 Grease fitting CI-4（15W-40） 2.2L/bucket Engine oil （The engine...

  • Page 100: Details Of Ct12 Vulnerable Parts And Maintenance Parts

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 8.4 Details of CT12 vulnerable parts and maintenance parts Details of CT12 series vulnerable parts and maintenance parts Unit Part properties System consump Product Wear Mainten classific Part name Specifications tion product ance...

  • Page 101: Lifting Capacity

    SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. 10023489 Left tooth（GF) CT16-03.40/AL15-L √ Engine shock 10014855 CT18-10.07.02.00 √ absorber Auxiliary water 10013741 CT16U-04.01.03.00 √ tank 10022672 Oil strainer C108-46A-00005A0 √ 10022673 Tank cap C108-46A-00004A0 √ Dynamic Throttle control 10024993 C112-48A-01000A0 √...
  • Page 102 SHANDONG CARTER HEAVY INDUSTRY MACHINERY CO., LTD. Blade down Unit:(kg) A (m) 2.5 m B (m） *175 *175 *238 *238 *239 *239 — — — — *176 *176 *252 *305 *305 *412 *412 — — *203 *262 *355 — —...

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