Dongfeng Dolika Wrecker Rotating Ceiling Boom,Truck Mounted Boom,Ceiling Carwash Boom,Car Wash Ceiling Boom Qingdao Main-Link Cleaning Equipment Co.,Ltd , http://www.qdspraygun.com
Dongfeng Duolika Wrecker Dongfeng Duolika Wrecker: It is made of Dongfeng EQ1070 chassis and consists of chassis, lifting device, lifting traction device, hydraulic system, electronic control system, body and toolbox. Many functions such as lifting, dragging and lifting are suitable for the clearing of highways and urban roads.
Dongfeng Doolika Wrecker Parameter Description Product Name: Dongfeng Duolika Flatbed with two wreckers
Wrecker troubleshooting 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
Wrecker maintenance and maintenance Wreckers are mainly composed of: chassis, lifting device, lifting traction device, hydraulic system, electronic control system, body and toolbox, etc., with lifting, dragging and lifting traction, etc. This function is applicable to the clearing operations 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.
Dongfeng Dolika Wrecker
The China Car Net Wrecker has been included in China's Ministry of Industry and Information Technology. Wrecker Cars Announcement All 5 Categories 92 Manufacturers 86 Wrecker Brands 1563 Wrecker Products, Latest Wrecker Announcements, Environmental Notices , fuel announcements, exemption announcements, pictures, news, and most timely wrecker pricing information. Dimensions: 7440×2300×2550 (mm) Chassis model: EQ1070TJ9AD3 Carriage size: ×× (mm) Total mass: 7490 (kg) Approaching/departing angle: 18/11 (°) Rated mass: (kg) Front suspension/rear suspension: 1180/2460 (mm) Curb weight: 5300 (kg) Maximum speed: 95 (km/h) Engine: ISDe140 30 CY4102-C3C CY4102-D3A Displacement: 4500 3856 3856 (ml) Power: 103 88 88 (kw) Manufacturer: Dongfeng Cummins Engine Co., Ltd. Dongfeng Chaoyang Diesel Engine Co., Ltd. Emission standards: GB3847-2005, GB17691-2005 State III Number of axes: 2 Front track: 1835 (mm) Wheelbase: 3800 (mm) Rear Wheelbase: 1640 (mm) Number of tires: 6 Tire specifications: 8.25-16, 7.50-16 Fuel Type: Diesel Springs: 11/9+7,8/10+7 Axis load: 2810/4680 Cab ride number 3 Vehicle Remarks: Lifting Quality: 3000KG Optional Warning Light