Troubleshooting details for daily maintenance of vacuum road sweeper trucks

Daily maintenance and repair details of road sweeper

road sweeper trucks
projectCycle/faultSolution
Paper air filterClean every day, replace once a monthCompressed air injection replacement
Water Filter5-7 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
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Cummins EngineThe oil and diesel filter elements shall be implemented in accordance with the engine warranty manualCall the engine service station
Jiangling EngineThe oil and diesel filter elements shall be implemented in accordance with the engine warranty manualCall the engine service station
antifreezeCheck the liquid levelAdd to
Hydraulic oil10-12 months (the oil color becomes white or darker)Replace, choose 46# in summer,Use 32# hydraulic oil in winter
Connectors, screws, hoopOil seepage, water leakage, loosenessTighten
Sweep arm shaftBox turning support pinUpper pin of box lifting cylinder15 daysAdd butter
Fan beltThe belt is loose or shakes greatlyAdjust the tensioner to press the center of the belt by handIt is advisable to drop by about 15 mm
Trash can, suction channelEvery job completedHigh pressure water gun flushing
SuckerThe height of the barrier from the ground is too small or too highAdjust the height of the barrier from the ground to 5-8 mm

Daily maintenance and repair details of vacuum cleaner trucks

vacuum cleaner trucks
vacuum cleaner trucks
projectCycle/faultSolution
control boxThe battery is dead, the power fuse is blown out, and the ignition lock is damagedChange the battery, change the fuse, change the ignition lock
The auxiliary engine can be started, but the hydraulic pressure has no responseLack of hydraulic oil, failure of relief valve circuit, electromagnetic oil pumpLine failure, blockage of main oil inletAdd hydraulic oil or overhaul
The rear spray bar does not spray water or the water volume is smallThe filter cup is blocked, the rear nozzle is blocked, and the water pump circuit is faultyClean the filter bowl, clean the nozzle, overhaul
Engine won’t startThe flameout line fuse is burned out, and the diesel fuel inlet pipe is damaged or blockedOverhaul or replace
Engine water temperature is highInsufficient oil, thermostat failureAdd antifreeze, overhaul and refill
The sucker can’t suck the garbage cleanlyThe 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 groundCheck and adjust, adjust the back door to make3-5mm gap between rubber skin and ground
Insufficient air pressure during dust removalThe pulse gap is too short or too large, the air pump leaks,The waterproof ball valve is leaking, and the air pump is insufficientCheck, adjust, repair

Daily maintenance and repair details of washing sweeping truck

washing sweeping truck
washing sweeping truck
projectCycle/faultSolution
Oil leakage in hydraulic system oil circuitLoose pipe joints, damage to the sealing ring or combination pad, cracks in the fuel tank or pipelineTighten the joint, replace the sealing ring or combination pad, disassemble and replace
Hydraulic system pressureThe 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 largeAdjust 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 systemThe 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 movementThere is air in the hydraulic lines. Loose positioning of pipes or hydraulic componentsLoosen 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 contactUse 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 actionThe solenoid valve that controls the action of the lifting cylinder is stuck, and the electrical control circuit is in poor contactPush 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 retractedImproper adjustment of overflow pressure, resistance plug is blockedAdjust the overflow pressure and clear the resistance plug
Sweeping speedThe 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 openAdjust 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 descentImproper 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 damagedAdjust 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 coordinatedThe auxiliary engine clutch is slipping, the speed sensor is malfunctioning, and the hand throttle is pulledStuck or positioned too highRepair 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 good1. 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 short1. 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
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