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Traffic Accident Wrecker Description Traffic Accident Wrecker Function Description: The traffic accident wrecker is mainly used in cities, towns, highways and other places. The vehicle management department consigns illegal vehicles and accident vehicles. Traffic accident wreckers are also called rescue vehicles, wreckers, rescue vehicles, and road rescue vehicles. Classification of traffic accident wrecker cars: The main models include one trailer and one rescue vehicle, one trailer and two rescue vehicles, tow trucks to separate wreckers, and tow a conjoined wrecker. Traffic Accident Wrecker Chassis: Mainly Dongfeng Xiao Bawang dragged a rescue vehicle, Dongfeng Duolika traffic accident removal truck, JAC traffic accident removal truck, Isuzu flat rescue vehicle, Dongfeng 153 dragged a rescue vehicle, Taier large-scale wrecker, Dongfeng Tianlong after eight large-scale rescue vehicles. 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. 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
Traffic accident wrecker
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