1. Introduction To The Main Assembly Of Semi Trailer
5. Semi Trailer Inspection And Maintenance
6. Container And Tire Maintenance
7. Truck Maintenance Guides in Disemi trailer containercommercial flat bed trucksfferent Seasons
8. Vehicle Maintenance Knowledge In Winter
During transportation, safety is always the top priority for truck drivers! If renting a trailer is to saveflatbed trailer service near meservice trailer worry, then the maintenance of the trailer is to maintain life. Check that there are no problems before drsemi truck fuel tanktruck & trailer serviceiving, and then you can go on the road.
Based on the rich practical experifirst tractor trailerfirst tractor trailerence of market service professionals, we are here to summarize the use of semi theavy truck dealerships near mepetroleum tank truckrailer, semi trailer maintenance, alow bed trailer manufacturerssemi trailer transportnd maintenance knowledge dump trailer logotruck trailer coverguides for the reference of the majority of drivflat bed transportsemi truck trailer sales near meers.

It is strictly forbidden to weld any part of the main beam without the guidandelivery trailerwelding trailersce of professional technician.
Please read the instruction manual cstarting a semi trucklowboy trailer for pickuparefully and do regular maintenance well.
1, Frequently check whether the trailer tire bolts are looseflatbed delivery truckslowboy trailer loads.
2, Check the suspension every two days and adjflatbed truck partstrailer exportust the tie rods to see if the bolts aresemi truck eventstruck and trailer capacity loose.
3, Ensure the specified tire pressure when driving.&nnew flatbed trailerslowboy semi truckbsp;
4, Check whether there is air leakage in the air pipe.
5, Regularly check the distance between the traction pin and the center of the struck and trailer salestruck trailer containeremi trailer axle at both ends, the error shall not be more than 1.5mm.
6, Check whether the steel U-bolt is loose every 5000km.
7, The trailer can not be overloaded , unbalanced, or ctruck with flatbed trailerchina semi traileroncentrated in the middle of the frame.
8, The spare tire must be fixed tightly and the safety bolts musemi trailer truck typesoil tanker truck weightst be locked.

Special reminder
After driving for one month or 5000 kilometers for the first time, the wheelbase should be tested and adjusted according tcistern truckshow trucks semiso the picture on the right.
|A-B|≤3mm |C-D|≤2mm |E-F|≤2mm

Suspension system (rigidity): Transfer load and absorb vibration.

Axle and wheel hub system: A single, two and three axle assemblies with the same structure acovered in trailertrailers with sidesre installed under the suspension system. The tire and ron a semi trucksemi trailer parts catalogim assembly are fastened to the wheel hub with tire bolts to stanker truckpull behind dump trailersupport the weight of the entire vehicle.

Landing leg lifting mechanism: In order to make the semi trailer be able to park reliably after being separated from commercial truck and trailerrange trailersthe tractor, two outriggers, linked or single-acting, are provided at the front end of the fracontainer trailerchina trailer manufacturersme. It is composed of a screw drive mechanistruck newsnew lowboy trailerm, a bevel gear drive mechanism, a two-speed reduction box, a transmission rod, and an operating handle.
When the handle is pushed in, it can be raised and lowefuel tanker trailer capacitybuy semi truck trailerred at a high speed by turning, and when the handle is pulled oucommercial truck and trailer partscommercial trailer partst, it can be raised and lowered at a low speed by turning. When the landiwe trailerstank on trailerng legs touch the ground, they can only semi truck coversemi truck for salesbe raised and lowered in low gear.

Kingpin and guide plate/frame: The lower part of the front end of the frame has a kingpin and a kingpin connecting plate connected to the saddle otrailer tank capacitybig rig truck shows near mef the tractor. The kingpin is mato truck serviceflatbed trailer moversinly used to transmit the traction force of the tractor and thfuel truck partsoil truckse braking force during braking.

The semi trailer transmits the light signal of the main vehicle to the trailer by connecting the spircontainer on flatbedsemi truck fuel tank capacityal cable plug of the tractor to the circuit socketflatbed trailer dealers near mesemi trailer at the front end of the trailer. Ttruck fuel tank capacityflatbed trailerherefore, the vehicle is equipped with an international general electrical system that matches the tractor. The electfactory trailerstrailer factoryrical system is generally composed of seven-core sockets, multi-core cables, junction boxes, waterproof connectorstrailer for container transportationsemi flatbed truck, and various lamps and other components.

Seven-core circuit connection diagram:

There are three major parts: emergency relay valve, ABS valfuel transport trailercommercial dump trailersve, and brake chamber. Most of the faults come from these three parts.

Emergency relay valve: The pneumatic components of the vehicle braking system can realize emergency braking when thehigh bed trailertrailer truck fuel tank capacity semi trailer's inflation pipeline is damaged or the air intake is cut off, shortening the braking laflatbed truck dealers near melowboy truck trailerg time and quickly releasing the braktrailer specialsflatbed te, replacing the original semi trailer system, the brake valve, distribution valve, acceleration valve, and quilarge truck manufacturerstrailers for pickup trucksck release valve in the dynamic system.

ABS (Anti-lock brake system): The electronic control system that monitors and conservice traileroil tanker semi trailertrols the speed of the vehicle durlow bed containertrailer and semi trailering braking, including ABS solenoid valve, ABS wiring harness, ABS probe, gear ring anddump trailers fortrailer dump trailer other components. Cooperate with the relay valve to perform the setruck trailer manufacturerscommercial truck trailerrvice brake function; Prevent the brakes from locking, d18 wheeler trailercommercial trucks sales and serviceetect the wheel end speed through the probe, when the speed drops toflatbed trailer transportproduction trucks 0, the signal is fed back to the solenoid valve, and the solenoid valve adjustsall truck manufacturerstrucking vehicles the air pressure to reduce the braking force and prevent braking lock to increase the driving safetbuy 18 wheeler trailertrailer trucky factor.

Semi trailer brake chamber

It is composed of the trachea's air pipe joint, inflation pipe, operating pfuel tanker insidebetter dump trailersipe, air reservoir, brake chamber, relay valve, ABS valve, ABS sensor and wheelloading fuel tankersemi truck fuel tank wraps brake. The inflation pipeline is connected to the tractor's air cylinder through a quick pipe joint; thetrailer for container transportationtrailer s control pipeline is connected to the tracttrailers with sidestrailer unloadingor's brake valve through a quick joint. When the semi trheavy duty truck parts near meutility tráilerailer brakes, each brake chamber flatbed trailer serviceheavy truck salesacts at the same time.

Service brake: Generally, service brake (foot brake) is used during driving, which is convenient for decelerating and stopsemi truckmedium duty truck dealers near meping when moving forward.

Parking brake: The parking brake is the brake used when the car is at a standstill. It is truck & trailer solutionsdump trailers for tractorscalled the parking brake, also known as the "hand brake"truck with trailer bedtrailer tank capacity. Its main function is to prevent the car from sliding forward and backward.

Air-cut brake (emergency brake): The air-filled pipe is cut off or is seriously leaked, and the trailer braflat bed vehiclesfuel tanker truck partske system automatically executes the emergency flat bed trailer sidestruck trailer maintenancebraking behavior. The control pipe will not be broken, but the "foot brake" will fail.
Importance: When the front air pump is damaged or the inflation tube is disconnected, and the air storage cylinder is seriously lsemi fuel tanksemi dump trailer manufacturerseaking, the vehicle's "foot brake" will fail or be ineffective. The air bheavy fuel tanker semi trailertruck and trailer manufacturersrake is an important guarantee for the safety of vehicles or percapacity of a tanker trucktruck trailer inspectionsonnel!
Working braking state in normal braking:

When the brake pedal is stepped on, the control pipeline ① delivers air to the emergency relay valve ⑤, avan and trailerfuel delivery trailernd the emergency relay valve ⑤ controls the ⑥ air reservoir to supply air side trucksmedium duty truck parts near meto the brake cylinder to generate braking force; when commercial truck newslow bed trailer designthe brake pedal is released, the emergency relay is activated, the valve qinside trucksflatbed truck traileruickly releases the compressed air of each sub-cylinder and quickly releases the brake state.
Feedback braking state during inflation

The trailer parks for a long time. When the brake system has no air pressure, the parking brake system (airlowering trailertrailer truck with container brake) works at this time. When the tractor is inflated into the air reservoir of the trailer ⑥ through the gasemi a trailervan trailer partss supply pipeline ②, the emergency relay valve isfuel semi truckv trailers now in a safe braking state. In the safe state, the emergency relay valve sends the compressed air to each brake cystandard semi trailersemi trailer containerlinder. When the air pressflat bed transporttanker truck trailerure of the trailer ⑥ air semi dump truck trailertrailer tank capacitycylinder rises to 4.5 bar, the safe state is released. This futransport trucksemi truck dumpnction is referred to as feedback braking function. The brake cylinder generates braking force in the inflated statypes trucks and trailersweight of a semi trailerte, which is a safety protection funsemi truck and trailer partsflatbed trailer requirementsction.
Automatic braking state in case of emweight on a trailersemi semi truckergency air failure

When ②the air supply pipeline is accidentally damaged during drsemi truck with dump traileroil tanker trailer capacityiving, the compressed air inlight duty flatbed trailer18 wheeler trailer parts the trailer ⑥the air tank will enter the ④brake cylinder thrfuel oil truckssemi trailer shops near meough the ⑤emergency relay valve, and automatically perform braking measures to ensure the safettrucks for trailersheavy duty truck & trailer partsy of the vehicle in emergency situations, which can be used in a short time Drove to the maintenance statlow dump trailertrailers 200ion, but it won’t last long. Whenflat bed truck trailerheavy truck service the tractor is stopped and the trailer ② gas supply pipeline needs to be disconnected, the trailer brake cylindermoving van trailerstrailer sells can also be seen to work, which is the same principle.
Vehicles need to do basic inspection and maintenance. Doing a good job in inspection and maintenance thatcontainer carrying truckscontainer on a flatbed can avoid unnecessary safety hazards and reduce the cost of use.heavy duty truck and trailer partslowboy trailer

Semi trailer inspection
Tire: Whether there are cuts, scratches, bulges, tire pattern wear and tire pressure are normaflat bed 18 wheelertrailers 1l
Axle suspension:
(1) Whether there are cracks in thtrailer truckcommercial flat bed truckse welding seam of the suspension support
(2) Suspension support and tire bolts are notruck trailer and partsefficiency trailert loose
(3) Ensure that there is no looseness of theflatbed delivery trucksgasoline tanker truck U-shaped axle
Rim: Whether there are cracks and deformation
Brake system:
(1) Whether the brake piping system and brake drum are damaged, worn or cracked;
(2) Ensure that the braking is normal trailer standardflatbed trailer weight limitwithout delay;
(3) Check whether the brake air circuit and the emtruck containerlow bed trailer designergency relay valve are normal before driving in northern areas in wtruck trailer inspectiontruck trailer heavy dutyinter;
(4) Whether the desiccant in the drying tank of the main vehicle fails
Supporting device: All parts of the supporting device are intact and can bcheap dump trailers near mecapacity of a fuel tankere used for normal lifting and shrinking
Wire harness and trachea: The wiring harness and air pipe are free from cracks, abrasion, otruck and trailer tireflatbed trailer manufacturers near mer air leakage, and the wiring harness connectosemi truck and trailer parts near mea 1 truck and trailerrs are in good condition
Lamps and labels:
(1) The lamp is intact and lighting clearly visible
(2) The label is clear without falling off and without covering
Kingpin: Whether the wear of the kingpin exceeds the normal value
Box body and door:
(1) The box body and the semi trailer locking device are connected in place without loosening
(2) The door lock device can be used normally, and the sealing rubber strip has no aging damage
Other: No loosening of fasteners, no cracks in welds, no obvious weawe buy semi trailerscommercial semi truckr and aging of rubber parts
Hub maintenance operations: dismantle and inspect the hub system, clean the shaft head and internal and external bearing farange of a semi truckoil transport truckilure grease, replace with qualified new grease, check whether the bearing wear affects the use, chectypes of trailers for pickup truckstanker truck partsk the performance of brake pads, brake drums, brake flatbed trailer servicelowboy trailerpads and other components, according to inspection As a result, maintenance andlow bed truck trailertrailer transport service replacement are carried out.
Cycle:
① BPW shaft maintenance frequency: 120,000-150,heavy duty semi trailertank transporter truck000 kilometers.
② VALX axis maintenance frequency: 2 years or 400,000 kilometers (1 year or 200,000 kilometers after maintenance-free).
③BPW 400K/600K: 2 years or 400,000 kilometers/3 years or 600,000 kilometers.
④Fuwa shaft maintenance frequency: 50,000-70,000 kilometesemi commercial vehiclescapacity trailerrs.
Calcium base grease:
Content: Inject or lubricate the semi trailer legs, adjusting arms, camshafts, balance beam pcommercial truck typestransport in a truckins, leaf springs and other parts with calcium base grease.
Cycle: Regularly used vehicles should be greased once every half a month to a month or vehicles that experience2 trailersdelivery trailer heavy rains also need to be grelogo trailerstrailer fuelased once, and less frequently used vehicles need to be greased after being usesemi truck semi trucktrailer distributorsd again. Apply sufficient grease to ensure adequate lubrication and reduce component loss and damage caused by metruck truck trailertrailer deliverychanical friction.

Introduction to the structure of container body:

The structure of the container

Container repair method:
(1) Patch repair: For holes, cracks, etc.
(2) Replacement and maintenance: For large-scale damage and serious deformation.
(3) Scrape putty paint repair: For small deformation and no damage.
(4) Adhesive repair: For cracks, composite board cabinets are common.
(5) Liner welding: Cracking and welding.
(6) Sheet metal correction: Forsemi truck manufacturer logosdifference between low bed and semi low bed trailer deformation and bending, such as hinges, locks, etc.
(7) Gluing and sealing: Rain leakage and water leakage on the top or side pahd dump trailersupport trailernels.
(8) Steel reinforcement: Aimingfuel tank trailerlow bed loader at the overall deformation of the composite board,automobile trailerrange of semi truck box expansion, etc.
Tire maintenance

The influence of tire pressure

Market service experts will share trailer-related knowledge and maintenance precautions for driverstruck trailer flatbedtanker trailer sales from time to time, hoping to help everyone, safety first.
1. Truck interior cleaning
After a rainy and scorching summer, a lot of bacteria will grow in the vehicsemi truck withaluminum flatbed trailer weightlepet, floor glue and other corners. In the autumn, the weather becomes cold, the windows of the vehicle willtrailer semi trailerhgv trailer manufacturers not be opened frequently, the air in the vehicle will start to become turbid, and the peculiartrailers 2oil tanker trailer smell and bacteria will pose a hazard to human health. You should icontainer loading trailerto truck servicemmediately do a thorough interior sterilization and cleaning for your vehicle.
2. Brake system detection
Pay attention to whether thehigh bed trailer truckwe trailers brake fluid is sufficient and the quality has deteriorated. If necessary, add or replace different types of trucks and trailerslowboy semi trailerit in time. At the same time, pay attention to whether the brake semi trailer truck typeslow bed trailer designis weakened or deviated, the pedal force of the brake pedal and the wheel semi truck weightsaluminum tanker trailerlock point during braking If necessary, clean the pipeline part of the entire brake system.
3. Maintenance of the charging sylow bed trailer capacitylowboy trailer operationstem
It is important to check whether the generator belt is aging or cracked after the rainy season or high temperatursemi trailer trailerfuel truck deliverye weather. If the above situation does nolight duty dump trailerssemi with lowboyt happen, remember to check the tightness of the belt. If the belt is too loose, it will cause the belt to slogo trailersfuel capacity of a semi truckcream, make the belt wear early, and the belt will be theavy truck and trailer partscontainer delivery traileroo tight, and it will cause the partial wear of the generator bearing.
4. Change the antifreeze
The weather turns cooler in loading to truckutility tráilerautumn. Once the cold air arrives, it is likely to affect the normal operation of the vehicle's transport semi trailersemi truck tankercooling system.
5. Truck tire maintenance
Because of the high temperature in summer, the tires generally cannot be too inflated. It'commercial flatbedsemi truck dump trailerss different in autumn. Because the tempsemi trailer trailersemi bed trailererature is relatively low, the uses of trailersemi with dump trailertires need to be supplemented with air pressure to reach the specified range. aluminum lowboy trailerweight of a semi trailerAt the same time, check the tires for obvious injuries, scratches, etc. In autumn and winter, the rusemi truck designslow bed trailer transporterbber becomes harder and relatively brittle, which not only reduces the friction coefftruck trailer partscommercial truck typesicient, but is also easier to ltypes of trailers for pickup truckstruck exportereak air and puncture tires.
6. Maintenance of heating pipe and fan
In autumn, the weather gets colder and hotrailer usestrailer y semitrailerarfrost will appear when the temperature is low. In this season, pay special attecheap semi trailersa semi trailerntion to whether the wind from the defrosting vent under the semi truck and trailertanker trailer capacitywindshield is normal and whether the heatfuel trucksfuel delivery trailer is sufficient. If there is a problem, solve it in time, trailer tire maintenancemaintenance trailerotherwise, it will Your driving causes unsaflatbed truck typescovered flatbed truckfe factors.
7. Maintenance of the air conditioner
After a lot of rain in summer, vehicles oinside oil tanker trucktractor trailer trailersften walk on some wading roads, and the lower part of the condenser flatbed trailer for carsfirst semi trailerof the air conditioner is inevitabsemi truck fuelflatbed lowboyly contaminated with sand. Over time, a larglight duty trailersemi trailere amount of silt and dust will accumulate, which will seriously affect the service life of the air conditioner. Therflatbed trailer for pickup trucktrailer manufacturers usaefore, it is very necessary to check and maintain the operating condition of the air conlowered semi trucksinternational tank truckditioner when autumn comes. In addition, the vehicle water tank is also easy to be contaminhigh bed trailerfuel tanker semiated with sand. This must also be noted. Once the vehicle water tasemi trailer servicetrailer truck containernk is found to have sedimentation, it should be cleaned immediately.
Common sense of vehicle maintenance quick battle to quickly resolve emerstart trailersemi truck weight limit in usagencies in winter
1. After it snows, there will be a lot of snow on the vehicle body like the roafuel tank of a trucksemi movingd. If it is not cleaned up in time, it will seriously affect the driving safety. Therefore, put the unused newstruck trailer truckfuel delivery truckpapers outside the windshield before snowiservice truck trailertrailer specialsng, and then use tape to cover iflatbed trailer partssemi truck movingt. Fixed so that you won’t be bothered by frost and icing on the windshield the next morsemi trailer tankerwe trailersning.
2. In winter, the temperature is very low, remeautotransporter trailersemi bed trailermber not to wipe the windows with a wet cloth, otherwise it will easily freeze the windows, and the moretypes of flatbed semi trailersspecial trailers you wipe them, the more flowers, so it istrailer vehicletrailer side wall best to use a dry cloth when wiping, or bring your own dry cloth in the vehicle. cloth.
3. In winter, the keyhole of the vehicle dtruck and trailer manufacturersbuy semi truck traileroor is easy to freeze due to water or water, so the keyhole should be wiped frequently, and a lisemi truck soil tanker semi trailerttle lubricating oil can be injected into the keydump trailer iconfactory transport trailershole. Remember to wipe the water around the door, otherwise it wiltrailer parts chinatrailers for trucksl be opened the next day It's troublesome not to open trailer for transportheavy truck transportthe door.
4. The temperature in winter is low, and the glass of the vehicle is easy to freeze and frohigh bed trailer truckcontainer low bedst when driving on the road, so open the door for a few minutes before driving, and lesemi truck fuel tank capacitylow semi truckt the temperature in the vehicle be similar to the outdoor when driving on the road or locking the veheavy truck industrylowboy trailer truckhicle.
Prevention of common sense vehicle maintenance in winter
1. Waxing in early winter is the best time to maintain the paint, because the number of vehicle washes after winter will unloading a trailerinside trucksbe significantly reduced, and the vehicle body is not easy to get watersemi trailer delivery servicewe buy semi trailers after waxing, so the possibility of freezing is reduced.
2. In winter, wheels and tires will become hard and brittle, and the safety factor will be greatly reduced. Therefoa and a truck and trailerheavy truck dealerships near mere, in winter, you should ala trailer truckheavy duty truck and trailer parts near meways clean up the debris in the tire pattern and avoid using tires that have been repaired more than once.
3. In winter, you must use a professional glass cleaning fluid, otherwise it will be counterproductive, but yfuel and service trailerheavy duty truck trailerou can also add alcohol or white wine to the water to lower the freezing point.
4. The winter oil must be used, otherwtank truck servicefuel tank size semi truckise it will cause engine failure.
5. The amount of antifreeze should be appropriate, and the mixed antifreeze that has been used for more than tsemi trailer dealers near mechina heavy truckwo years and used for more than one year must be replaced. It is best not to mix antifreeze.
6. Check whether the brake fluid is suftruck lowbed trailerlowboy for pickup truckficient, whether the quality has deteriorated, and if necessary, it should be replaced and atruck container trailerflatbed trailer brandsdded in time.
7. Check whether the electrolyte in the battery is sufficient. If the battery is not charged enough, iflatbed semi trailer manufacturerslightweight flatbed trailert is easy to rupture in the severe cold.
Mastering the above vehicle season maintenance guide, coupled with the usual vehiclee for the details of the vehicle, wilarge tanker truckbed inside semi truckll surely allow you and your vehicle to have a worry-free ride in any environment.