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  • Is there a knocking sound inside the engine?
    Is there a knocking sound inside the engine?

    2022-09-09

    admin

    What's wrong with the knocking sound inside the engine? Please follow the article to service your forklift. Reason 1: The ignition time is too early Troubleshooting method: Adjust the ignition advance angle of the distributor Reason 2: Excessive carbon deposits in the cylinder combustion chamber Troubleshooting method: remove carbon deposits Reason 3: The radiator is leaking or the amount of cooling water is too low Troubleshooting method: repair welding radiator or add cooling water Reason 4: Excessive scale buildup in the water jacket Troubleshooting method: Cleaning limescale Reason 5: Damaged water pump or loose fan belt Troubleshooting method: overhaul the water pump or adjust the tension of the fan belt Reason 6: The piston pin is too loose Troubleshooting method: Replacing the piston pin or bushing Reason 7: Excessive wear on pistons, piston rings, cylinder liners Troubleshooting method: overhaul and replace Reason 8: Excessive valve clearance Troubleshooting method: Adjustment Reason 9: Excessive wear of BEARING SET,CONNETING ROD and BEARING SET,CRANKSHAFT Troubleshooting method: Replace or repair bearing bushes Reason 10: Excessive wear on the timing gear Troubleshooting method: replace Reason 11: Too much clearance between valve stem and valve guide Troubleshooting method: Replace guide tube after valve stem chrome repair Reason 12: The position of the air manifold preheat valve is incorrect Troubleshooting method: Adjust by season Reason 13: Fuel specification mismatch Troubleshooting method: switch to gasoline of the same specification
  • Other possibilities for starter motor failure
    Other possibilities for starter motor failure

    2022-08-23

    admin

    Reason 1: Release the electromagnetic switch button, the starter continues to idle Troubleshooting method: Check switch contacts Reason 2: The gear does not mesh with the flywheel rim Troubleshooting method: The eccentric screw is not adjusted properly Reason 3: Mixed gas is too lean Troubleshooting method: close the choke valve to make the mixture richer Reason 4: Mixed gas is too rich Troubleshooting method: Open the choke wider or reduce the accelerator pedal to make the mixture thinner Reason 5: Cylinder liner soaked in gasoline Troubleshooting method: check replacement Reason 6: The petrol pump doesn't pump oil Troubleshooting method: check replacement Reason 7: Gasoline pipe is clogged or crushed Troubleshooting method: check replacement Reason 8: Bad Vaporizer Working Troubleshooting method: check replacement
  • Various causes and repair methods of engine overheating
    Various causes and repair methods of engine overheating

    2022-08-23

    admin

    If you are also troubled by the problem of engine overheating, maybe this article can bring you some help, please follow the article to check your forklift. Reason 1: Damaged water pump or loose fan belt Troubleshooting method: overhaul the water pump or adjust the tension of the fan belt Reason 2: Radiator, cylinder liner, cylinder block leaking or too little water Troubleshooting method: Weld repair holes and add cooling water Reason 3: Excessive accumulation of dirt on the radiator or engine water jacket Troubleshooting method: Wash and remove scale buildup Reason 4: Thermostat malfunctioning Troubleshooting method: Replacing a new thermostat Reason 5: Too little oil in the oil pan Troubleshooting method: Add oil to the specified standard Reason 6: The oil in the oil pan is too thin Troubleshooting method: Change the oil Reason 7: Excessive carbon deposits in the cylinder combustion chamber Troubleshooting method: Eliminate carbon deposits Reason 8: Ignite too late Troubleshooting method: Adjust the ignition advance angle of the distributor Reason 9: Water leaking from the cylinder head water manifold Troubleshooting method: replace Reason 10: Piston rings are worn out and a lot of exhaust gas is pouring into the crankcase Troubleshooting method: replace
  • Why is the spark too weak or unable to ignite?
    Why is the spark too weak or unable to ignite?

    2022-08-17

    admin

    Why is the spark too weak or unable to ignite? Are you also troubled by this problem, please follow our steps to repair your forklift. Reason 1: Ignition coil is damaged Troubleshooting method: Replacing the ignition coil Reason 2: There is no gap or poor contact at the disconnection point of the distributor Troubleshooting method: Adjust the gap or remove oxides on the electrocution Reason 3: The capacitor is damaged Troubleshooting method: Replacing the capacitor Reason 4: The high-voltage line is damaged or has poor contact Troubleshooting method: Replacing high voltage wires or fastening heads Reason 5: Damaged or loose low-voltage wires Troubleshooting method: Replace or tighten low voltage wires Reason 6: The ignition coil or distributor is wet Troubleshooting method: Remove and dry, but not too close to the fire Reason 7: Spark plug insulator rupture Troubleshooting method: Replacing spark plugs Reason 8: The spark plug is wet or carbon deposits on the electrode Troubleshooting method: drying or removing carbon deposits Reason 9: Spark plug electrode gap is too large or too small Troubleshooting method: Adjust the gap Reason 10: Insufficient battery power Troubleshooting method: Dismantle charging Reason 11: Broken distributor cover or distributor connector Troubleshooting method: replace Reason 12: Ignition timing is wrong Troubleshooting method: Check firing sequence Reason 13: Water in the cylinder head Troubleshooting method: Remove the cylinder head to remove the accumulated water, and tighten the cylinder head nut as required. If the cylinder head liner is damaged, it should be replaced
  • The forklift starter motor can't start the engine, but it can run. Why?
    The forklift starter motor can't start the engine, but it can run. Why?

    2022-04-24

    admin

    When you find this problem with your forklift starter motor, maybe you can use this article to repair your forklift. Reason 1:Forklift bearing wear too much, armature and magnetic pole friction Troubleshooting method:Adjust the contact surface between the new forklift bearing cleaning brush and the commutator Reason 2:Poor contact between forklift carbon brushes and forklift commutator Troubleshooting method:Remove oil stains and sand down Reason 3:The surface of the forklift commutator is singed or has oil stains Troubleshooting method:Sanding and degreasing with sandpaper Reason 4:Forklift armature coil and forklift commutator out of welding Troubleshooting method:Repair soldering with soap solder Reason 5:Forklift wires are not in tight contact Troubleshooting method:Check forklift switch contacts and polish with sandpaper Reason 6:Forklift electromagnetic switch contact point singeing, poor contact Troubleshooting method:sanded with sandpaper Reason 7:The forklift battery is insufficiently charged or the voltage and capacity do not meet the regulations Troubleshooting method:Charge the forklift battery to make the voltage and capacity meet the requirements Reason 8:The engine lubricating oil solidifies in winter, and the starting resistance is too large Troubleshooting method:Warm up forklift engines or switch to winter oil
  • What should I do if the forklift engine is not running?
  • What should I do if the alternator does not alternator electricity and the charging is always insufficient?
    What should I do if the alternator does not alternator electricity and the charging is always insufficient?

    2022-04-22

    admin

    When you find that your forklift alternator does not alternator electricity or is always undercharged, you can try to service your forklift in this way and replace the damaged forklift parts. Reason 1:The alternator is loose and the rotor coil is disconnected Troubleshooting method:Repair or replace Reason 2:Partial short circuit of alternator stator core or stator coil Troubleshooting method:Repair or replace Reason 3:The silicon rectifier is damaged or short-circuited Troubleshooting method:replace Reason 4:The contact of the brush is poor, and there is a stuck phenomenon in the brush holder hole; the spring pressure is less than 0.98-1.96 N; the slip ring has oil stains Troubleshooting method:sand and wipe with 00 grit sandpaper; adjust or replace brush springs; clean slip rings Reason 5:The wiring is broken, short circuit, bad contact, wrong connection Troubleshooting method:Check for repairs Reason 6:Regulator adjustment voltage is too low or too high Troubleshooting method:Adjust Reason 7:Dirty, singeing or oxidized contacts, uncontrolled traction Troubleshooting method:Clean, Repair, Replace Reason 8:The relay coil is burned out Troubleshooting method:Replace Reason 9:Voltage coil or resistor wiring is disconnected Troubleshooting method:Repair Reason 10:alternator belt slack Troubleshooting method:Adjust
  • How to clean forklift parts and batteries?
    How to clean forklift parts and batteries?

    2021-12-24

    admin

    The various operating systems of the forklift are connected by many components and work together to maintain the normal operation of the forklift. Excessive dust will cause blockage of parts and affect the operation of various systems of the forklift. Minor failures may cause forklift operation problems, and major failures may cause engineering accidents. Therefore, we should clean the parts of the forklift regularly. At the same time, we can also replace some wearing parts. Now let me talk to you about the cleaning of forklift parts and batteries. 1. For the cleaning of some metal parts of forklifts, we usually use cold washing and hot washing methods. 1. The cold washing method is to use kerosene. It is quick. After washing with light diesel or gasoline, blow dry with compressed air. The equipment required for this cleaning method is very simple. The operation is also very fast. 2. The hot washing method is to clean with alkali solution and heat the solution. Then the parts are soaked and taken out, rinsed with clean water, and then dried with compressed air. In order to prevent corrosion of aluminum alloy parts, it cannot be cleaned with a solution containing a large amount of sodium hydroxide. 2. For the cleaning system sealing ring of some non-metal forklift parts on the forklift, use alcohol. The cleaning of rubber parts, such as brake cups, turpentine or brake fluid. Do not use kerosene. Rubber ring. It should be cleaned with hydraulic gasoline or alkaline solution to prevent swelling and deterioration. The clutch friction plate and brake friction plate can not be boiled and washed with alkaline solution, and should be cleaned with a little gasoline. Leather parts (such as oil seal aprons, etc.) are generally cleaned with a dry cloth. 3. The common dirt on forklift parts also has a black solid-it is gradually formed under high temperature and high pressure, and firmly adheres to the surface of internal combustion engine pistons, cylinder liners, cylinder heads and other parts. The texture is extremely hard. Carbon deposits must be removed during repairs. In order to ensure the normal operation of the forklift, the carbon deposits on the parts must also be removed regularly. We usually clean up this kind of dirt in two ways: 1. One is physical cleaning, that is, scraping with a spatula, spatula (or with a bamboo chip), metal brush, etc. This method of manually removing carbon deposits is inefficient and difficult to remove. If you are not careful, it will damage the parts. 2. There is another way to remove carbon deposits by chemical methods. The solution for removing the carbon deposits of internal combustion engine parts is prepared: then soak the carbon deposits of the parts in the cleaning solution. If there is a heating device, it can easily soften the dirt, and the solid dirt can be easily peeled off after the soaking is over. The battery of an electric forklift can be washed with water, but water cannot enter the battery cell. Try to...
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