Complaint
The full name of the wrecker is road wrecker, also known as trailer, road rescue vehicle, towing vehicle, with lifting, pulling and lifting traction and other functions, wrecker is mainly used for road failure vehicles, urban illegal vehicles and rescue and rescue. Wrecker according to the category is mainly divided into: tow crane connected type, tow crane separation type, one tow type, one flat tow type, multi-functional wrecker, hydraulic automatic clamping type. According to the traction tonnage is divided into :2 tons,3 tons,5 tons,8 tons,10 tons,15 tons,25 tons,30 tons,50 tons,80 tons. According to its use characteristics, the wrecker can be divided into carrying class and lifting traction class. The carrying class is to pull the damaged vehicle to the carrying vehicle to transport away; The lifting traction class is to use the lifting traction device installed on the car to lift (or lift) one end of the damaged car off the ground, the other end is still on the ground, and then towed from the scene by the lifting traction type wrecker. The wrecker is basically modified by the second class chassis of the truck, and can be divided into hauling, loading, lifting, rescue (single-arm and double-arm) wrecker according to the structural type of wrecker.
Wrecker refers to a special vehicle equipped with road emergency operation equipment. Because the car is driving on the road, the breakdown and accident is inevitable, especially on the high-grade highway, this phenomenon often happens. The task of the wrecker is to drag the broken car or accident car away from the scene in time to ensure that the road is unimpeded. Therefore, the road wrecker is also known as the road rescue vehicle. With the increase of high-grade roads and cars in use, wreckers have also been developed.
1. Disengage the winch clutch, pull out the steel cable in front of the vehicle to be carried, and hook the "j" line hook on the traction carabiners under the towed end of the vehicle to be carried. Then engage the clutch of the winch. Note that the number of coils left when pulling out the cable should not be less than 5.
| Serial number | Fault image | Fault cause | Elimination method |
| 1 | The boom expansion speed of wrecker is slow and weak | Hydraulic power system failure Expansion mechanism control valve, relief valve failure | Check and adjust Disassemble, clean, adjust or replace damaged components |
| 2 | Telescopic vibration of wrecker boom | Lifting arm slider problem The telescopic cylinder is abnormal | Inspection process |
| 3 | The extension length of the bumpers in each section of wrecker cannot be compensated | The solenoid valve is faulty Circuit fault | Clean the oil filter and replace the electromagnet Check the external management line fault |
| 4 | Automatic retracting of wrecker boom | Telescopic cylinder is faulty Balance valve is faulty | Check, adjust telescopic cylinder, replace damaged components |
| 5 | The lifting mechanism of wrecker does not move or moves slowly | The vehicle control valve is faulty Hydraulic motor failure The balance valve is faulty Lifting brake failure | Inspection treatment Inspection and treatment Adjust and replace the spring Adjust and replace the spring |
| 6 | The lifting mechanism of wrecker stops moving when working | The check valve is faulty | Cleaning and replacement |
| 7 | Load out of control when wrecker drops hook | Balance valve failure | Disassemble and clean |
| 8 | Wrecker lifting mechanism brake can't open | Shuttle valve stuck Shuttle valve internal leakage Brake piston seal is poor | Repair shuttle valve Repair shuttle valve Repair the brake and replace the seal |
| 9 | Raise beyond the limit, the bell does not ring | The bell is damaged Overwinding relay is damaged | overhaul |
| 10 | Automatic retracting of wrecker variable-amplitude cylinder | The cylinder itself is faulty Balance valve is faulty | Inspection treatment Disassemble and clean, replace damaged components |
| 11 | Vibration of wrecker variable-amplitude cylinder | There is air in the cylinder The balance valve is improperly adjusted or the spool is damaged, and the throttle hole is blocked | Multiple amplitude changing action during no-load, oil filling and exhaust Disassemble, clean and check, and replace damaged components |
| 12 | Wrecker leg retracting failure | Bidirectional hydraulic lock failure | Check and repair two-way hydraulic lock |
| 13 | The legs retract automatically when lifting the load | The one-way valve in the bidirectional hydraulic lock has poor sealing Oil leakage inside the cylinder | Repair the two-way hydraulic lock check valve Check the sealing element on the cylinder piston |
| 14 | No movement or slow movement during lifting | Hydraulic pump damage The relief valve fails Rotary joint is damaged Manual control valve is damaged | Inspection and repair |
| 15 | The oil temperature rises too fast | Hydraulic pump is damaged or faulty Hydraulic oil pollution or insufficient oil | Replacement or repair The hydraulic oil should be replaced or supplemented |
| 16 | Wrecker hydraulic pump does not rotate | The force extractor or its operating air path is faulty | Inspect, repair or replace force and air systems |
| 17 | High return pressure | The oil filter is blocked | The filter element should be replaced |
| 18 | Wrecker hydraulic oil leakage | The seal is damaged There is something wrong with the pipe connection Pipe damage | Replace the seal Tighten or replace the connector Replace the tube |
| 19 | The rotary joint is not electrified | Poor contact between brush and slip ring Open welding of wire joints | Repair Repair wire joints |
| 20 | Oil circuit system noise | There is air in the pipe Oil temperature is too low Pipes and components should be securely fastened | multiple actions, oil exhaust Run the oil pump at low speed to heat or change the oil |
| Main technical parameters of wrecker | |||
| Overall dimensions: | 5995×2300×2260(mm) | Fuel type: | Diesel |
| Total mass: | 4495(Kg) | Approach/departure Angle: | 20/13(°) |
| Rated quality: | 1500(Kg) | Front suspension rear suspension: | 1080/1555,1110/1525,1130/1505(mm) |
| Quality of service: | 2865(Kg) | Maximum speed: | 100(km/h) |
| Number of shafts: | 2 | Front wheel base: | 1490,1498,1590,1570,1545(mm) |
| Wheelbase: | 3360(mm) | Rear wheel base: | 1455,1442,1485,1497(mm) |
| Number of cab passengers: | 2(person) | Number of spring pieces: | 3/3+1,3/5+2,3/3+2,3/4+2,2/2+1,3/7+6,3/8+6,1/1+1,3/2+1 |
| Number of tires: | 6(tires) | Axle Load: | 1800/2695 |
| Tire Specifications: | 6.50R16LT 10PR,6.50R16LT 12PR,195/75R16LT 8PR,7.00R16LT 8PR | ||
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--HOW LONG WILL OUR PRICE BE VALID?
We are a tender and friendly supplier, never greedy on windfall profit. Basically, our price remains stable through the year, We only adjust our price based on two situations:
** The rate of USD: RMB varies significantly according to the international currency exchange rates.
** Manufacturers/Factories adjusted the trucks and machinery price, becaue of the increasing labor cost, and raw material cost.
