Dongfeng Wrecker

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Dongfeng Wrecker Overview Dongfeng Wrecker has been welcomed by users all over the world for its superior product quality and affordable prices. The full-name road wrecker, also known as a trailer, consists of a chassis, a lifting device, a lifting traction device, a hydraulic system, an electronic control system, a body and a tool box, and has a number of components such as lifting, dragging, and lifting. The function is applicable to the clearing operations of highways and city roads.

Dongfeng Wrecker Classification 1. Dongfeng tablet with two wreckers 2. Dongfeng truck with flat dragging two wrecker 3. Dongfeng dragging a connected wrecker 4. Dongfeng Tow Lifting Wrecker

Technical parameters of Dongfeng wrecker series of products Dolika Wrecker Announcement Batch: 201 Total mass: 7490 Wrecker [2] Curb weight: 5495 Maximum speed: 90 (km/h) Approaching departure angle (°): 20/10 Front suspension/rear suspension: 1180/2440 Front passenger (person): 3 Number of springs: 11/9+7,8/10+7 Fuel type: Number of diesel tires: 6 Tire specification: 8.25-16, 7.50-16,8.25R16,7.50R16 Front Track: 1835,1750 Rear Track: 1640,1586 Number of axes: 2 Wheelbase: 3800 Dimensions (mm): 7420/2300/2380,2540 Container size (mm): - Engine plant: Dongfeng Cummins Engine Co., Ltd Engine model: CY4102-C3C Engine displacement (ml): 4500 Engine power (kw): 3900 Chassis manufacturer: Dongfeng Motor Co., Ltd. Note: Lifting mass: 1800kg. With the optional chassis cab. The optional warning light corresponds to a height of 2540mm. Cassidy Wrecker Size (mm) 5995×1950×2250 Gross Weight (Kg) 4495 Carriage Size (mm) ×× Rated Load Capacity (Kg) Approach/Departure angle 19/15 Curb weight (Kg) 3700 Front/rear suspension (mm) 1032/1663 Maximum speed (km/h) 95 Chassis model EQ1040TJ20D3 Engine Type CY4102-C3F Engine Factory: Dongfeng Chaoyang Diesel Engine Co., Ltd. Displacement: 2659 Power: 70 Fuel Type Diesel Emission Standards GB3847-2005, GB17691-2005 State III Number of axles 2 Number of tires 6 Wheelbase 3300 Tire Size 7.00-16, 6.50-16, 7.00R16, 6.50R16 Axis load 1785/2710 Front track 1506 Number of leaf springs 8/9+5,6/8+4 Rear track 1442 Other lifting mass: 665kg. 153 wrecker dimensions (mm) 7900,7600×2490×2950 total mass (Kg) 15600 rated load mass (Kg) approach/depart angle 24/13 curb weight (Kg) 10505 Suspended front overhang / (mm) 1250 / 1950,1250 / 1850 Maximum speed (km / h) 80 Chassis model EQ5160GKJ Engine Model: ISDe185 30 Engine Factory: Dongfeng Cummins Engine Co., Ltd. Displacement: 6700 Power: 136 Fuel Type Diesel Emission Standard GB3847-2005, GB17691-2005 State III Number of axles 2 Number of tires 6 Wheelbase 4500,4700 Tire Size 9.00-20,9.00R20, 10.00-20,10.00R20 Axis load 5700/9900 front track 1940 Number of leaf springs 9/10+8 Rear wheelbase 1860 Lifting mass 4900; wheelbase 4700mm corresponding to 7900mm in length and 1950mm in length. Duolikatuo hanging conjoined Wrecker Vehicle type: CSC5071TQZ Chassis Type: EQ1070TJ9AD3 Total mass Kg 7490 Rated load mass Kg Curb weight Kg 4795 Dimensions mm 6480×2285×2480,2660 Approach angle / departure angle o 20/13 Front suspension / rear suspension mm 1180/1500 The maximum speed Km/h 95 Chassis technical parameters: Chassis name (category) Chassis model EQ1070TJ9AD3 Chassis manufacturer: Dongfeng Motor Co., Ltd. Chassis dimensions mm 6695×2285×2350,2475 Number of axes 2 Wheelbase 3800 Shaft charge 3090/4400 Number of tires 6 Tire specifications 8.25-16, 7.50-16 Number of leaf springs 11/9+7,8/10+7 Front track mm 1835 Rear track mm 1640 Fuel Type Diesel Emissions according to the standard GB3847-2005, GB17691-2005 State III Steering form steering wheel Engine Model: ISDe140 30 Engine Factory: Dongfeng Cummins Engine Co., Ltd. Displacement (ml): 3856 Power (Kw): 103 Others: Lifting mass: 2500kg, optional warning light; optional cab with chassis. Special function description: Cheng Liwei Wrecker is equipped with lifting, dragging, lifting and other devices on the basis of a special chassis to carry out tasks such as lifting and carrying the vehicle. All steel components are treated with pickling, phosphating and cathodic electrophoretic paints so that the components do not rust for a long period of time, which greatly extends the service life of the mechanism. Before loading into the final assembly, they are all tested on the bench and put into the department after passing the test. The hydraulic steel tubes that have the greatest influence on the reliability of the hydraulic system are all subjected to the following special procedures: internal surface shot-peening-pickling, flushing-passivation-sealing-electrophoresis, internal surface cleaning before the assembly of the oil tubing, blow-drying, and oil passing Anti-rust and other processes, effectively ensure the stability of the entire hydraulic system. Our factory has passed the ISO9001-2000 international quality system certification and passed the 3C certification. It is a well-known brand in China and trustworthy in Hubei Province.

Use Wreckers are special vehicles equipped with road rescue equipment. Faults and accidents are unavoidable when a car is on the road, especially on high-grade roads. The task of the wrecker is to remove the faulty vehicle or accident vehicle from the site in time to ensure unimpeded access. Therefore, road wreckers are also called road emergency vehicles. With the increase of high grade roads and in-use vehicles, wreckers have also developed. Wrecker application: Mainly used for road failure vehicles, urban illegal vehicles and emergency rescue.

User's Guide 1. Connect the brake pedal together when the wrecker is walking on the road. 2. Correctly adjust the brake system of the wrecker. 3. Check the condition of the vehicle and tire inflation before driving the wrecker. 4, when walking on the road to open the wrecker's headlights and flashing lights. 5, "slow vehicles" logo should be hung in the wrecker or drag trailer obvious place. 6. If the weight of the wrecker is greater than the wrecker, do not drag it downhill. 7. Drag the heavy object uphill and downhill to hang the same file. 8, when the wrecker engine shutdown device to maintain a good working condition. 10. Keep the wrecker battery and starting system in good working condition. 11. When the wrecker is suddenly started, be sure to open it and turn the crank in the driver's seat. 12. Double-entry equipment must be equipped with a reversing alarm that can be heard.

Maintenance of the wrecker is mainly composed of: chassis, lifting device, lifting traction device, hydraulic system, electronic control system, body and toolbox, etc., with a number of functions such as lifting, pulling and lifting, etc. Repairing of highways and urban roads. The use of wreckers Wreckers are special construction vehicles designed to ensure the smooth flow of roads. They are important equipment for traffic management in busy urban areas and highways. It can quickly, timely and safely clear accidents, breakdowns, illegal vehicles on roads, and special vehicles to divert road traffic. First, the wrecker is divided into four categories: a lifting and detaching wrecker, a lifting and unloading wrecker, a flat wrecker, and an ordinary type. Among them, the lifting and separating type wrecker includes two types of jib rotary wrecker and non-rotating wrecker. Second, people often say that the 3 tons of wreckers, 5 tons of wreckers, 8 tons of wreckers, 20 tons of wreckers and other specifications of wreckers, in fact, refers to the kind of wrecker chassis The level of carrying capacity. It has a certain relationship with the total mass of the towed vehicle, but there is no inevitable connection. The larger the tonnage, the wrecker's operating capacity is correspondingly larger. Third, when wreckers are to be towed (drag) vehicles away from the site, they are generally supported and dragged. Support is to use the support arm of the wrecker to be lifted and pulled by the trolley. Dragging, that is, people often say hard drag, is the use of the wrecker will be hard to pull the trailer to drive. Among them, the care of the wrecker must meet the following two conditions. 1. The lifting weight of the supporting arm is not more than the lifting weight of the wrecker, and the lifting weight of the lifting arm gradually decreases as the supporting arm lengthens. 2. The quality of the rated care must not exceed its maximum total mass. That is to say, the total mass of the vehicles that are taken care of must not exceed the maximum total mass of the wrecker. For example, in the 5140TQZ wrecker, the total mass of the vehicle that is being held is not to exceed 14 tons at first, and the weight of the lifting point of the care arm is also considered to be within the rated lifting mass range. Wrestling ability of wreckers is related to the maximum total mass of the wrecker and engine power. Article 3.6 of GB7258 “Technical Conditions for Operational Safety of Motor Vehicles” stipulates that the specific power of motor vehicles shall not be less than 4.8 kW/t, and the dragging and pulling capacity of the wrecker must meet this requirement. For example, for a 5140TQZ wrecker, the maximum gross mass G is 14000kg, and the engine power is 132kW. Then the dragging quality G* of the wrecker must meet: G+G*≤132/4.8X1000, that is, G*≤ 13500 kg. From the above results, it can be seen that due to the matching of the bearing and the engine when considering the design of the chassis, the refitted wrecker has the same dragging and pulling capabilities. For safety, it should be used according to this regulation. Fourth, the use of the car's operation methods, precautions, etc., are used and the service life of the wrecker is extended. The market of wreckers With the rapid development of China's economy, the construction of highways has progressed by leaps and bounds, and the mileage has continuously increased. China's “five vertical and seven horizontal” highway main lines will be basically completed. The available wreckers are difficult to complete and remove obstacles, which seriously affect traffic. A wrecker manufacturer hopes to solve this problem by increasing the tonnage of the chassis. However, the ability to raise the holding capacity is limited, and the vehicle price increases several times, affecting the economic efficiency of users. Therefore, the market calls for wreckers with large lifting capacity and support.

How to buy Dongfeng wreckers How to choose road wreckers must be selected according to the actual use of the environment, wreckers attention is suitable for auto repair factory wreckers and traffic departments, traffic wreckers suitable for work needs to meet the demand The product is a reasonable choice. The following points should be noted when selecting a road wrecker: 1. Determine the type of road wrecker according to the requirements of the wrecker operation . Different obstacle clearing environments have different requirements for the configuration of wreckers. The same highway, some roads, medium-duty trucks and long-distance bus traffic more, while others are more heavy-duty trucks. In this regard, the configuration of the wrecker should be different. The former should be equipped with a medium-heavy wrecker and a device capable of clearing large buses. The latter should be equipped with a super-heavy wrecker. The same traffic police department in the city, some places need to clear more illegal motorcycles, and some need to clear the more illegal cars. In this regard, the former should be equipped with a motorcycle lift platform type wrecker, and the latter should be equipped with a clamp type wrecker. 2. Technical parameter standards According to the new standard for wreckers, the maximum lifting quality and the maximum supporting quality are the important technical parameters for measuring the working ability of a wrecker. The maximum care quality of a wrecker must not exceed the maximum design mass of its chassis. The maximum lifting mass refers to the lifting lifting quality of the wrecker when the effective length of the holding arm is at a minimum value. It shall satisfy the requirement that the wagon of the front axle is not less than 15% of the maximum total mass after the wrecker is in the supporting state. The bridge axle load must not exceed 20% of its allowable load; the axle load on the front axle must not exceed its allowable load at no-load.” The ratio of the lifting mass of the wrecker to the quality of the support is not less than 20%. According to these regulations, it can identify whether the technical parameters marked by the manufacturer on the wrecker are true and whether it meets the wrecker standards. The maximum lifting quality of a wrecker is one of the important parameters for measuring the technical performance of a wrecker. The QC/T 645-2004 standard stipulates that "the maximum lifting mass: the rated lifting mass of the wrecker when the effective length of the holding arm is the minimum", and "the axle load on the rear axle must not exceed its allowable value in the maximum holding state. 20% of the load." This is to calculate the maximum lifting quality of the wrecker according to the conditions of the rear axle. The overall arrangement can be rationally carried out. It is also possible to increase the weight of the wrecker's chassis to improve its maximum lift quality. 3. Standard configuration and optional configuration list The standard configuration refers to the configuration required for the Dongfeng wrecker to properly complete the clearance operation within a certain range; the optional configuration means that the user can purchase some spare parts instead of the original standard accessories. , Or buy some spare parts to expand the scope of the wrecker's work. For example, the hydraulic system has imported parts and domestic parts for optional; optional auxiliary wheels or other operating accessories are selected to enhance the operating functions.

Dongfeng Wrecker Repair Tips

No.	Fault image	cause of issue	Method of exclusion
1	Wrecking arm lifting speed is slow and powerless	1 hydraulic power system failure 2 telescopic mechanism control valve, overflow valve failure	1 Check, adjust 2 disassemble, clean, adjust or replace damaged components
2	Wrecker boom telescopic vibration	1 jib slider problem 2 telescopic cylinder is abnormal	1 Insufficient lubrication between the sliding surface of the boom box and the sliding block should be greased; the slider surface deformation is too large, the slider should be replaced; the surface of the lifting arm should be repaired, grinding surface 2 inspection processing
3	Wrong length of boom lifting section of wrecker cannot be compensated	1 solenoid valve fault 2 circuit fault	1 Clean the oil filter, replace the electromagnet 2 and check the external line fault
4	Wrecker Lifter Automatic Retraction	1 telescopic cylinder failure 2 balance valve failure	1 Check and adjust telescopic cylinder, replace damaged components 2 Check, adjust balance valve, replace damaged components
5	Wrecker lifting mechanism does not move or move slowly	1 vehicle control valve fault 2 hydraulic motor fault 3 balance valve fault 4 lift brake fault	1 Inspection processing 2 Inspection processing 3 Adjustment replacement spring 4 Adjustment replacement spring
6	When the wrecker lifts up and works, the movement is interrupted	Check valve failure	Cleaning, replacement
7	Loss of load control when the wrecker falls	Balance valve failure	Open cleaning
8	Wrecker Lift Mechanism Brakes Cannot Open	1 Shuttle valve stuck 2 Shuttle valve drained 3 Brake piston seal bad	1 Service shuttle valve 2 Service shuttle valve 3 Service brake, replacement seal
9	Raise the limit and the volume does not ring	1Bell damaged 2Over wound relay damaged	Overhaul
10	Wrecker car luffing cylinder automatic retract	1 cylinder itself failure 2 balance valve failure	1 Inspection process 2 Open cleaning, replace damaged components
11	Wrecker's amplitude change cylinder vibration	1 There is air in the cylinder 2 The balance valve is improperly adjusted or the valve core is damaged and the orifice is blocked	1 Multiple-amplitude operation when no-load, charge and exhaust 2 open, cleaning inspection, replacement of damaged components
12	Wrecker removal failure	Bidirectional hydraulic lock failure	Check and repair bidirectional hydraulic lock
13	Leg retract automatically when lifting	1 Unidirectional 2 valve in the bidirectional hydraulic lock is poorly sealed 3 Oil leakage inside the cylinder	1 Check the check valve in the bidirectional hydraulic lock 2 Check the sealing element on the cylinder piston
14	No action or slow movement during lifting	1 Damaged hydraulic pump 2 Failure of relief valve 3 Damaged rotary joint 4 Damaged manual valve	Inspection repair
15	The oil temperature rises too fast	1 Damaged or malfunctioning hydraulic pump 2 Contamination of hydraulic oil or insufficient oil	1 replacement or repair 2 should replace or supplement hydraulic oil
16	Wrecker hydraulic pump does not rotate	Failure of power take-off or its operating air path	Check, repair or replace power take-off and air system
17	High return pressure	Filter plug	Should replace the filter
18	Wrecker hydraulic oil leakage	1 The seal is damaged 2 There is something wrong with the tubing connection	1 Replace seal 2 Tighten or replace connector 3 Replace tube
19	Bad power to the rotary joint	1 Bad contact between brush and slip ring 2 Wire joint open welding	1 Repair 2 Repair wire joints
20	Oil system noise	1 There is air in the air line 2 The oil temperature is too low 3 The lines and components are tightly fastened 4 The balance valve malfunctions 5 The oil filter is blocked 6 The oil in the oil tank is insufficient	1 Multi-action, replenishing oil and exhaust 2 Low-speed operation oil pump Warm or change the oil 3 Fasten, pay special attention to the oil pump and suction pipe can not leak 4 Adjust or replace 5 Filter or replace the filter

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