Forklift is an industrial handling vehicle, which refers to various wheel -type transport vehicles that load, unload, stack and short -range transportation operations for the tray cargo.ISO/TC110 is called industrial vehicles.Commonly used for transportation of large -scale warehousing objects, it is usually driven by fuel engines or battery drivers.Lets take a look at how to choose forklifts with Xiaobian!
Forklift purchase
(1) Operation function
The basic operating function of forklifts is divided into horizontal disk, stacking/pickup, loading/moving, and picking.According to the operating function to be achieved by the enterprise, it can be preliminarily determined from the above -mentioned models.In addition, special operating functions will affect the specific configuration of forklifts, such as paper rolls, iron water, etc., which need to be installed in forklifts to complete special functions.
(2) Operation requirements
The operating requirements of forklifts include general requirements for tray or cargo specifications, promotion heights, operating channel width, climbing and other general requirements. At the same time, the operating efficiency is also required (different models of different models), operational habits (such as habits of driving or standing), etc.Requirements.
Forklift maintenance
1. Check the pressure or vacuum of cylinder.
2. Check and adjust the valve clearance.
3. Check whether the work temperature weapon work is normal.
4. Check whether the multi -road conversion valve, lift oil cylinder, tilt oil cylinder, steering oil cylinder and gear pump work are normal.
5. Check whether the gear change work of the transmission is normal.
6. Check and adjust the gap between the brake film and brake drum of the hand and the brake.
Forklift common general fault repair
The starter can drive the engine operation, but there is no signs.
This phenomenon caused by the engine is generally caused by poor fuel system. It is divided into low -voltage oil roads and high -pressure oil circuits. When inspection, you should first determine which part of the failure comes from. First, the fuel injection pump should be relieved.In the case, if the oil or outflow of foam diesel indicates that it is a low -pressure oil circuit, it is a high -pressure oil circuit failure.
(1) Low -pressure oil circuit failure
1. No fuel tank oil: processing method cheer;
2. The oil pipe is blocked, the treatment method: clean up and clear;
3. The oil pump filter is blocked, and the processing method: clean up;
4. Oil pipe aging leakage, replace;
5. Diesel filter is too dirty, replace;
6. The oil pump pump is damaged and replaced;
(2) High -pressure oil circuit failure: 1. The fuel injection pump does not work, correction 2. The injector does not work or replace;
(1) Premature fuel injection time
1. The rhythmic and crispy "quack" metal knocking occurs in the cylinder;
2. The engine is overheating, weak, and fiddled with black smoke;
Approach
Loose the fixed screws of the fixed disk and slowly delay the fuel injection time until the fuel injection situation improves.At the moment when the oil surface has a trace fluctuation, the time line from the time of time and the marker on the flywheel and the marker on the flywheel shell is over, depending on whether the early angle meets the regulations. If it does not meet the regulations, adjust it.
(2) The fuel injection time is too late
1. The cylinder occurs low and unclear.
2. The engine speed cannot be increased with the throttle;
3. Excessive engine: weakness and white smoke;
Check whether the connecting fixed screw is loosened and shifted, and the fixed screws of the fixed disk can be loosen, and the fuel injection time is slowly sprayed in advance until the fuel injection situation is improved.Whether the screw is disordered, if the disorders are adjusted again.
(3) The engine is weak
cause of issue
1. Insufficient fuel supply in the low pressure oil road, the fuel tank ventilator is blocked, the fuel pipe is blocked, the rupture connector is loose and the pads are not tight.Treatment method: find out the failure to clear the oil road and replace;
2. The air filter is blocked and the air intake is not smooth, the processing method, replace or clean the filter;
3. Diesel filter block, processing method: replace;
4. Insufficient oil supply in oil pumps, processing methods: repair or replacement;
5. There are air or moisture in the fuel system. Methods: exclude air or water;
6. Premature or late fuel injection time, processing method: adjust; adjust;
7. The exhaust pipe or the muffler is blocked and the exhaust is not smooth. The treatment method: clean;
8. Insufficient fuel jet pump fuel injection, processing method: school oil pump;
9. Individual fuel injector is not atomized, processing method: find out where the cylinder failure is replaced or repaired with a fuel injector;
10. The engine temperature is too high, the processing and inspection cooling system finds the failure and exclude;
11. Improper adjustment of the throttle and adjustment;
12. Mechanical factors cause the cylinder pressure to be too low.It is a mechanical factors: the valve closure of the gas -equipped mechanism is not strict and the piston, the piston ring, and the cylinder sleeve are severely worn, etc., adjust the valve gap, researched the valve or replace the piston, the piston ring, and the grinding cylinder set, etc.
(4) Sudden flames during operation
1. Sudden flameout during the operation of the engine;
2. There are no abnormal symptoms before the fire;
Causes and treatment methods:
1. No fuel tank oil: Treatment method: refuel;
2. Mixed water or air in diesel, processing method: exclude water or air;
3. Oil pipe block or rupture, processing method: dredge or replace the oil pipe;
4. The fuel filter is blocked, and the processing method: replace;
5. The oil pipe joint loosen the air intake, and the treatment method: squeeze the air in the lit out the air in the oil road;
6. The oil pump does not supply fuel, processing method: repair or replace the oil pump;
The transmission system part
(1) Technical parameters of liquid gearboxes
3. Turn (from the input end) clockwise;
5. Working oil, 20#steam turbine engine oil (or 6#or 8#liquid force transmission oil)
7. The highest oil temperature, no more than 110 degrees Celsius;
(2) Decrease efficiency
(1) Torch parts part
1. The engine speed decreases, processing method: increase the engine speed
2. There are bubbles in the oil, check the sealing of the pipeline and whether the liquid oil is deteriorated
3. Oil temperature rises too high or too low
(2) The transmission part
1. Glip tablet stuck or wear, check whether the grinding tablet has glue, uneven contact, warning
2. Sealing ring or O -shaped ring grinding, check whether the sealing ring and groove width are grinded or damaged
(3) Excessive oil temperature
(1) Torch parts part
1. The torque transformer works at a low speed for a long time. The torque transformer is very low, or it is too long in the stall state. This working condition should be changed and pay attention to avoid the above working conditions.
2. When a high speed ratio, one -way clutch card dies, loses control, and check and exclude.
3. Too little refueling, or bubbles produce bubbles in the system, the pressure of fuel volume should be increased.
4. The quality of the oil is unqualified, and the new oil should be replaced.
(2) The gearbox part.
1. Clutch obstacle, check whether the friction film slipped.
2. Bearing damage, check whether the coordination surface is damaged.
(4) The gearbox does not work
1. Check whether the manipulating valve has a spring card and break.
2. Check whether the main oil pressure is normal.
3. If the main oil pressure is normal, the clutch oil pressure is abnormal to check whether the sealing ring or the O -type ring is worn or damaged. Check whether the clutch and clutch piston ring are damaged.
4. Check whether the torque deapers oil pressure is normal, such as an abnormal check of the torque.

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