Daily maintenance and repair details of road sweeper
| project | Cycle/fault | Solution |
| Paper air filter | Clean every day, replace once a month | Compressed air injection replacement |
| Water Filter | 5-7 days (according to the water source condition) damaged,The filter is seriously clogged (when the temperature is below 0 degrees, the pump should be drained every night, Residual water in the water filter) | Clean the filter element and replace (the water filter is clogged,Insufficient water supply can easily cause damage to the pump ) |
| Cummins Engine | The oil and diesel filter elements shall be implemented in accordance with the engine warranty manual | Call the engine service station |
| Jiangling Engine | The oil and diesel filter elements shall be implemented in accordance with the engine warranty manual | Call the engine service station |
| antifreeze | Check the liquid level | Add to |
| Hydraulic oil | 10-12 months (the oil color becomes white or darker) | Replace, choose 46# in summer,Use 32# hydraulic oil in winter |
| Connectors, screws, hoop | Oil seepage, water leakage, looseness | Tighten |
| Sweep arm shaftBox turning support pinUpper pin of box lifting cylinder | 15 days | Add butter |
| Fan belt | The belt is loose or shakes greatly | Adjust the tensioner to press the center of the belt by handIt is advisable to drop by about 15 mm |
| Trash can, suction channel | Every job completed | High pressure water gun flushing |
| Sucker | The height of the barrier from the ground is too small or too high | Adjust the height of the barrier from the ground to 5-8 mm |
Daily maintenance and repair details of vacuum cleaner trucks
| project | Cycle/fault | Solution |
| control box | The battery is dead, the power fuse is blown out, and the ignition lock is damaged | Change the battery, change the fuse, change the ignition lock |
| The auxiliary engine can be started, but the hydraulic pressure has no response | Lack of hydraulic oil, failure of relief valve circuit, electromagnetic oil pumpLine failure, blockage of main oil inlet | Add hydraulic oil or overhaul |
| The rear spray bar does not spray water or the water volume is small | The filter cup is blocked, the rear nozzle is blocked, and the water pump circuit is faulty | Clean the filter bowl, clean the nozzle, overhaul |
| Engine won’t start | The flameout line fuse is burned out, and the diesel fuel inlet pipe is damaged or blocked | Overhaul or replace |
| Engine water temperature is high | Insufficient oil, thermostat failure | Add antifreeze, overhaul and refill |
| The sucker can’t suck the garbage cleanly | The suction port of the fan is not tightly sealed, and the back door is not tightly sealed.The hose is damaged and after the suction cup is dropped, the rear rubber skin andNo gaps on the ground | Check and adjust, adjust the back door to make3-5mm gap between rubber skin and ground |
| Insufficient air pressure during dust removal | The pulse gap is too short or too large, the air pump leaks,The waterproof ball valve is leaking, and the air pump is insufficient | Check, adjust, repair |
Daily maintenance and repair details of washing sweeping truck
| project | Cycle/fault | Solution |
| Oil leakage in hydraulic system oil circuit | Loose pipe joints, damage to the sealing ring or combination pad, cracks in the fuel tank or pipeline | Tighten the joint, replace the sealing ring or combination pad, disassemble and replace |
| Hydraulic system pressure | The pressure adjustment of the electromagnetic relief valve is too low or the valve core is stuck, and the oil level of the hydraulic oil tank is too lowOr the filter is blocked, the electric control circuit is loose, the contact is poor or the fuse is damagedBad, the hydraulic pump is damaged or the gap is too large | Adjust the overflow pressure or the number of reciprocating movements of the spool pushed by your fingersSecond, eliminate the jam. Add hydraulic oil or clean hydraulic oilfilter. Check and repair the electric control circuit or fuse. Maintenance and replacement fluidPressure pump or seals. |
| Severe heating of hydraulic system | The hydraulic oil tank surface is too low or deteriorated. Improper overflow pressure, large overflow,Or the hydraulic pipe is blocked and the throttle valve is opened incorrectly. Working speed of auxiliary engineToo high or too tight sweep pressure. | Add hydraulic oil, adjust the relief pressure and throttle opening,Eliminate pipeline blockage. Reduce the working speed of the auxiliary engine orAdjust the sweep pressure |
| The hydraulic system has high vibration and noise,Crawling phenomenon of hydraulic cylinder movement | There is air in the hydraulic lines. Loose positioning of pipes or hydraulic components | Loosen the pipe joint row piece by piece from the hydraulic pump inlet pipe.Air, tighten the components and hydraulic pipelines |
| Trash can tipped, returned to position orSweeping pan telescopic, lifting actionControl failure. | The solenoid valve reversing valve is stuck, the overflow pressure is too large, the electronic control circuitPoor contact | Use your fingers to push the corresponding electromagnetic commutation on the hydraulic manifoldThe spool of the valve reciprocates several times to eliminate jamming. Adjust electromagnetic overflowFlow valve, overhaul the solenoid valve electric control circuit. |
| Control failure of nozzle lifting action | The solenoid valve that controls the action of the lifting cylinder is stuck, and the electrical control circuit is in poor contact | Push the valve core back and forth several times by hand to eliminate jamming. Repair powerSolenoid valve electric control circuit |
| The trash can is hit or cannot be retracted | Improper adjustment of overflow pressure, resistance plug is blocked | Adjust the overflow pressure and clear the resistance plug |
| Sweeping speed | The overflow pressure is low, the adjustment throttle valve is too small, and the solenoid directional valve is stuck, Hydraulic motor or hydraulic pump is worn out. The inlet valve of the high-pressure water pump is not open | Adjust and repair the electromagnetic overflow valve, adjust the speed control valve to openDegree, overhaul hydraulic motor hydraulic pump |
| The nozzle is not lifted in place or the nozzle sweeps the diskAutomatic descent | Improper adjustment of the length of the suction nozzle lifting hook, sweeping the nozzle lifting cylinderInternal leakage, the solenoid valve controlling the lift is stuck, the hydraulic lock is damaged | Adjust the length of the hook, replace the oil seal in the hydraulic cylinder, and overhaulCorresponding solenoid valve, eliminate jam, repair and replace hydraulic lock |
| The speed of the auxiliary engine and the fan are not coordinated | The auxiliary engine clutch is slipping, the speed sensor is malfunctioning, and the hand throttle is pulledStuck or positioned too high | Repair the auxiliary engine clutch, adjust the speed sensor gapOr replace the sensor, adjust the hand throttle positioning bolt or the ropeFill the core with lubricant |
| The cleaning effect is not good | 1. The angle of the left and right spray rods, the nozzle angle, and the nozzle spray rod angle are notAfter adjustment, the fan-shaped water curtain is not well connected.2. The auxiliary generator or the working speed of the fan is too low, and the fan belt is slipping3. The suction duct is blocked4. The vacuum system is leaking, the rear door is not closed tightly or the rubber suction tube is broken.5. The ground clearance is too high or the support wheel is damaged when the suction nozzle is working.6. Improper sweeping angle or speed7. Brush wear is too short | 1. Adjust the angle of the spray rod and the overlap process of the nozzle fan-shaped water curtaindegree.2. Check the auxiliary engine and hand throttle operating mechanism, and tighten the belt.3. Check if there is any blockage in the straw, clean the straw and filter.4. Repair and replace the seals of the trash can and close the back doorOr replace the rubber straw5. Adjust the installation height of the supporting roller to ensure the ground clearance of the suction nozzle orReplace the support wheel.6. Adjust the tilt angle and speed of the sweeping plate.7. Change the brush |
