Insufficient output power during use of the forklift, difficulty in starting, slow response to shift,oil temperature is too high and torque converter does not work etc.this is usually a common failt in a forklift hydraulic mechanical transmission system.What should we do when these failures occur? Failure analysis During use, if the forklift is found to be underpowered, climbing is difficult, and shifting is unresponsive,While the lifting and lifting work normally, the pressure of the system can be used to detect the pressure of the system first,if it fails to reach the specified pressure value,the reasons is the compensation pump gear and pump body wear excessively,causes the increase of the internal leakage of the compensation pump; the poor cleanliness of the oil leads to the blockage of the oil circuit and compensates the suction. If the oil temperature is too high,the reason is Insufficient oil supply from compensating pump due to blocked oil line,Cause the clutch to dry cause by excessive oil temperature;the oil pressure in the torque converter is lower than the adjustment pressure of the main pressure valve,cause the torque converter outlet pressure too low; the oil grade is wrong;torque converter internal components are damaged,so that only a small part of the power of the engine is transmitted to the turbine,excessive reactive power causes a sharp rise in oil temperature. Troubleshooting From the above analysis, we can see that the faults of the forklift hydraulic machinery transmission system are mainly the three links of the oil circuit, the torque converter and the compensation pump.Therefore, when troubleshooting,first consider cleaning the oil circuit,replace the oil and oil filter as required; then check the torque converter and the compensation pump three links.Therefore,when troubleshooting,first consider cleaning the oil circuit,replace oil and oil filter as required;then check the torque converter guide wheel,guide wheel seat and overrunning clutch for damage;finally check the compensating pump for wear and repair or replace damaged components.The dust and dirt on the surface of the oil radiator must also be cleaned.After the above processing,can usually better troubleshooting. When inspecting machinery transmission system,attention should be paid to the following inspections;the concentricity error of the engine flywheel, torque converter and shell of the variable torque should not exceed 0.2mm;the degree of unbalance of the connecting plate should be less than 30g·cm;the end of the face of the engine flywheel housing and the end face of the converter housing relative to its axis shall not fluctuate more than 50um; there shall be 1.0-1.5mm clearance between the torque converter fork and the end face of the compensating pump gear. The above are just some troubleshooting measures taken for some common faults that occur in the forklift hydraulic machinery transmission system.According to the actual situation for reference. Thank ...

Now the use of forklifts is more extensive, the number of forklifts used is more, and parts will have problems in varying degrees, and if necessary, they need to be replaced.I shared on Gzsycc.com how to extend the life of a forklift hydraulic pump.Hope it will help you. 1.Forklift gears: The gears are worn and glued,which increases the radial clearance.The lighter ones have no obvious effect on the use and can be repaired. In severe cases, gears should be replaced. 2.The gears on both sides of the gear are worn, and the lighter ones can lift the wire.Grinding can be used to grind the burr marks;when the wear is serious, it can be smooth on the grinder.However, as long as the end face of one gear wears, the other gear also needs to be ground at the same time to ensure that the difference between the thickness of the two gears is within 0.005 mm.Grinding should also pay attention to the accuracy of the end face and hole,end face and end face.After grinding,apply oil stone to sharpen sharp burrs,but not chamfering. 3.because of oil pump gears work in one direction, so the tooth surfaces are single-sided wear.Gears with worn tooth surfaces can be removed from the burrs with oil stones,and change the meshing position of the gears can be reversed to restore the working performance of the oil pump. 4.Forklift Gear bearing frame: When the end face wears abrasion or pulls out the line,four bearings can be placed on the surface grinder.by non-gear contact surface for the base,grind out the end face once. 5.The inner hole generally wears less,if the wear is serious,it can be used to grind or sharpen the aperture to repair the size and match the needle roller. 6.When wear of shaft sleeves with side plates or axial floating,scratched and grooved,the damaged surface can be polished.The method is to coat no400-600 grinding paste on a smooth surface,plus wash oil or wax gently on the side plate surface rotation for polishing. 7.Forklift gear pump body: The pump body wear usually occurs in the oil suction chamber.Some oil pumps can be repaired by means of transposition on the structure,even if the pump body is 180°around its axis, so that the oil suction chamber becomes a pressure oil chamber to restore its working ability. Of course, what we are talking about here is a gear pump with better quality,such as a Japanese OEM, a forklift factory,and if the inferior quality and relatively low price of the auxiliary plant parts, there is no need to maintain such parts. The texture may not support this method.Our company has good quality forklift parts. If you need to contact us, thank you!

Internal-combustion forklift engine are forklifts powered by diesel engines using diesel, gasoline, or liquefied petroleum gas as fuel,power from the engine provided.Because of the different fuels used in the engine, the internal combustion forklift engine is divided into two categories: gasoline engine and diesel engine.Is there a difference between operational principle by the two?This article takes you to find out. Type of the internal-combustion forklift engine 1.Gasoline engine is generally made by carburetor that to make gasoline and air after mixed into the cylinder, and then use spark to ignite bursts of work, so it is called carburetor engine. 2.The diesel engine generally injects diesel into the cylinder through the fuel injection pump and an injector, and mixes with the high-temperature and high-pressure air that has already been sucked into the cylinder (and is compressed), cause spontaneous combustion and work.Therefore, the diesel engine is also called a compression ignition engine. The structure of the gasoline engine:（Note:The composition of the diesel engine is almost the same as that of the gasoline engine, except that there is no ignition system, and a high-pressure injection pump is added to the fuel supply system. So split the gasoline engine.） 1.Body: It is the assembly matrix of engine parts.It includes a cylinder head, a cylinder block, and a lower crankcase (oil sump).The combusiton chamber parts of it is the inner wall of the cylinder block cylinder head and cylinder block constituent.Many parts of the body are also part of other systems constituent. 2.Crank Mechanism:It is a mechanism by which the engine generates and transmits power. It converts linear reciprocating motion of the piston into rotational motion of the crankshaft and outputs power.It includes pistons, piston pins, connecting rods, crankshafts with flywheels, and cylinder blocks etc. 3.Gas distribution mechanism:Including intake valve, exhaust valve, valve lifter and camshaft and camshaft timing gear (driven by the crankshaft timing gear) and so on.Its role is to make the combustible mixture full of cylinders in time and discharge the exhaust gas from the cylinder in time. 4.Fuel Supply System:The gasoline engine fuel supply system includes a gasoline tank, a gasoline pump, a gasoline filter, an air filter, a carburetor, an intake pipe, an exhaust pipe, an exhaust muffler etc.Its role is to mix the gasoline and air into a suitable combustible gas mixture for supply to the cylinder for combustion and to discharge the combustion-generated exhaust gas to the engine. 5.cooling system:It mainly includes water pumps, radiators, fan fans, water distribution pipes and cylinder blocks, and water jackets in cylinder heads.Its function is to dissipate the heat of the high heat components into the atmosphere to ensure the normal operation of the engine. 6.Lubrication system:Including oil pumps, pressure limiting valves, oil channels, filters, oil filters, and oil radi...

About forklift fuel pumps, structure and working principle, if you do not know understand of this part of the knowledge, I will share with you at Gzsycc.com. 1、The role of forklift fuel pump：gasoline is drawn from the oil tank,which after pressure sent to the carburetor float chamber. 2、Forklift fuel pump structure:For the mechanical drive diaphragm,mounted one side of the engine crankcase,driven by the camshaft eccentric wheel.The pump body is divided into the upper body and the lower body, and the upper body is provided with an oil inlet valve and an oil outlet valve which are die-casted by the zinc alloy.The cover and the upper body are clamped with a gasket at the joint surface,so that the oil-out chamber is sealed.Coated with oil-resistant rubber cloth membrane, with a screw clamp between the upper body and lower body,above the formation of pump oil chamber.Diaphragm and retaining plate with a nut locked in the upper end of the rod, and by the role of the diaphragm spring arch upward,under the spring seat have grease seal, prevent rupture of diaphragm to leak oil.One end of the inner rocker arm is inserted into the square hole of the pull rod, and the other side is in contact with the outer rocker arm ramp,and set sleeved on the rocker arm.Rocker arm shaft one end of with hand rocker arm use of manual pump oil. 3、Forklift fuel pump working principle:When the engine is running, when the convex tip of the eccentric wheel pushes the outer rocking arm to swing,it drives the inner rocker arm and descends the diaphragm through the pull rod,So the pump chamber volume increases,the hydraulic pressure drops,the oil valve is closed, the inlet valve is sucked open,oil enters the pump chamber from the inlet pipe.When the convex tip of the eccentric wheel leaves the outer rocker arm,the outer rocker arm is returned under the action of a return spring,inner rocker arm drive away from the outer rocker arm,diaphragm up under the action of the spring arched upward,So the pump chamber volume decreases,the hydraulic pressure rises, close the inlet valve,push out the valve,the gasoline through the tubing into the carburetor.When not needed,because the float chamber needle valve closed,the oil Internal resistance of the oil chamber exceeds the spring force of the diaphragm spring,the diaphragm down to the lowest position,the pump oil will stop completely.Before starting the engine,if it is found that there is no oil in the float chamber or there is too little oil in the chamber,you can pull the arm pump oil.When the float chamber is filled with gasoline,hand arm will form air movement, pump oil stop. Japan imported gasoline pump forklift parts,Guangzhou Songyuan forklift truck parts wholesale and retail stock,you can learn more at Gzsycc.com. Thank you!

Emergency repair forklift tips, forklift trucks out of shovel inevitably some failure, we must temporarily take some emergency repair methods. Now I introduce some easy-to-use garage tips to you at Gzsycc.com. 1、Forklift radiator damage. When the forklift is in use, it is found that the fuel radiator is leaking oil. The oil drain can be wiped clean and smeared with soap or bubble gum on the oil spill site for temporary plugging; repairing with epoxy adhesive is better. 2、Forklift oil hose rupture. When oil hose ruptured can be at ruptured cleaned, coated with soap, wrapped with tape or tape wrapped in the pipe rupture, and tied with wire, and then coated with a layer of soap. 3、Forklift tubing break. when tubing broken can find a diameter and adapt to the hose rubber or Plastic sleeve joint. If the socket is not tight enough, the two ends of the wire bundled to prevent leakage. 4、Forklift Cylinder Head ect parts appear trachoma and leakage, leakage. According to the size of trachoma, use the appropriate specifications of the electrician fuse, with a hammer gently smashed into the trachoma, you can eliminate oil spills, leaking. 5、Oil hose spill. When the forklift is used, such as the oil leakage of the oil pipe joint, the oil hose horn and the oil hose nut are mostly not sealed. Available cotton yarn wrapped around the lower edge of the horn, and then tighten the tubing nut and tubing joints; but also the bubble gum or malt sugar chewed into a paste, painted in the tubing nut seat, to be dry after the sealing effect. Can also be cut leather or leather belt shape or put into the hole smashing molding, can be installed,can also cut a piece of plastic pipe for installation. 6、Cups cracked. Use a tape tube or plastic tube to put the sediment cup in and out of the tubing sleeve so that the oil will not flow through the sedimentation cup. 7、In and out of the hose rupture. Rupture is not big, can be coated with a layer of soap coated cloth will be watertight Department dressing; rupture larger, you can cut off the hose rupture, in the middle of a bamboo or iron pipe, and used bundled with wire. 8、Fan belt broken. The broken belt can be tied with wire or a good way to open and stop the car drove away. 9、Screw hole slider. Screw hole slip caused oil leakage or connecting rod loose, so that it can not work. At this time, the original screw can be hammer-sharpened with a hammer so as to increase the expansion on both sides (pay attention to not buckling the hammer at the top to fasten the hole), and then fasten it well. but it can not be disassemnle repeatedly until maintenance next time. 10、Diaphragm or delivery pump diaphragm ruptures or breaks. Detachable oil pump to remove the diaphragm, with bakelite, electrical insulating bakelite or plastic sheeting prototype size saw file molding, and polished fitted; or the tubing directly to the injection pump. 11、Door spring broken.After the valve spring is broken, the broken spring can be taken off,and then you ...

The Chinese Spring Festival Day 2018 Dear Customer： We will have 15 days off as Chinese Spring Festival Day 2018 ： February，15 th, – 25th, February. During the holidays, if you have anything urgently, please feel free to contact our sales people by Skype or email, they will reply as soon as they saw the messages. Thanks for your cooperation and supporting and wish you have a really happy new year! YUANSONG TRADE CO., LTD Publicity Department 2018/02/09

How to check maintain forklifts for 4-8 months?Regular maintenance of diesel forklifts helps keep your forklift healthy and prolongs the service life of your forklift. Gzsycc.com tells you about how to maintain your new diesel forklift regularly. According to the working hours of 8 hours a day measurement, diesel forklift maintenance standards: Diesel forklift 1000 hours of inspection and maintenance(about 4 moths) (1)Replace air filter element and check negative pressure switch. When installing the filter, be careful not to damage the filter and make sure that it is installed correctly. (2)Check the status and fastening of the engine mount. (3)Check the tightness of the intake and exhaust lines. (4)Check the sealing of the hydraulic system, drive axle, pump, valve and piping. (5)Replace the pressure filter. In replacement, should be lowered mast use a special wrench to loosen the filter holder on the left side of the gear box, unscrew the filter by hand. Fill the new filter with hydraulic fluid and oil the seal. During commissioning, check the seal on the filter contact surface. (6)Replace the suction filter. During replacement, slowly pull out the filter element so that oil can flow back to the tank. Test run, check the filter cover seal condition. (7)Replace the ventilation filter. Unscrew the hydraulic reservoir breather filter and remove the oil filter from the filter and attach it to the new filter. (If the work environment is poor, it is necessary to replace the filter earlier.) (8)Check wheel gear unit oil level. Check this item requires lowering the fork frame, in order to check both sides of the wheel reducer oil level. (9)Check the parking brake. Drive the fully loaded forklift to a 15% grade ramp, depress the brake pedal, lock the parking brake handle, stop the engine, and the forklift should not move at this time. Diesel forklift 2000 hours of inspection and maintenance(Close to 8 months) (1)Replace V-belt for alternator and fan. Check with the acupressure method: with your thumb down the belt, check the tension, the belt between the pulley sag about 10mm. If the tension is not enough, tension belt. Running the engine about 15 to 20 minutes, after tension the belt again. (2)Check fuel nozzle. (Nozzle pressure standard: 300bar.) (3)Check and adjust the valve clearance. After the engine is warm, check the valve clearance. Such as the smooth operation of the engine, and can achieve maximum power, indicating that the valve clearance adjustment is correct. (Valve Clearance Standard: Intake valve 0.20mm Exhaust valve 0.45mm.) The above is only the basic operation of diesel forklift maintenance under normal working conditions. If your forklift is working in harsh environment or overloaded running for a long time, your maintenance cycle needs to be flexibly adjusted according to your forklift operation. Thank you.

Summer has passed, the temperature began to cool after the fall, the climate changed significantly. The transition from summer to autumn, the forklift in the use of the process should pay special attention to maintenance. gzsycc.com suggest you, this season forklift maintenance should do the following: 1.A vehicle external forklift maintenance Autumn morning and evening dew more water, forklift surface is often very wet, if the body has obvious scratches, should be done in time to do paint treatment, so as not to scratches the site of moisture and corrosion. Due to the corrosion of rain acid and summer light point-blank, the forklift body paint will inevitably be oxidized, at the time of the season, you'd better do for the forklift from the surface cleaning, paint maintenance work. 2.Forklift Tire maintenance In the safe driving of the forklift, the tires play an important role. In the summer, due to the high temperature, forklift user always check the tire pressure, must not make the tire pressure is too high, otherwise, there will be the risk of forklift tire puncture. But to the fall, because the temperature is relatively low, the tire will add air pressure to make it Keep the specified pressure range, at the same time, should also check whether the tire scratches, because the rubber in the autumn and winter is easy to harden and more brittle, easy to leak the tires, and even tires, to regularly clean the inclusions within the tire. 3. Forklift maintenance of  the engine compartment Should check the engine compartment of the engine oil, brake oil and antifreeze, to see if the oil is sufficient, whether the deterioration, whether to replace the cycle, the oil is like the vehicle's blood, to the replacement cycle must be replaced to ensure that the oil cycle unobstructed. 4. Forklift maintenance of  barake system Autumn day and night temperature difference, easy to cause the forklift body parts expansion shrinkage deformation, you should always check whether the brake weak, deviation, brake pedal pedaling force has changed, if necessary, clean up the entire brake system piping part and pay attention to forklift maintenance. If your forklift is equipped with a warm air line or fan, after a summer operation, or for the upcoming cold winter to prepare, the fall of the most suitable for these devices to check whether the exhaust outlet is normal, the line is aging, etc. And so on, if any problem can be resolved in time. 5. Maintenance of air inlet or inlet grille To check whether these parts are debris, if there are debris, you can use compressed air blowing dust, in addition, forklift maintenance to the engine cooling state, you can use a water gun from the inside to wash the above parts. 6. Air conditioning maintenance If your forklift is equipped with air conditioning, hot summer weather, the car is often overloaded air conditioning operation, in addition, due to summer and autumn more rain, a long time, it is easy to rust the condenser...