(1) Touch: touch the suspected fault and fault related parts with your hand in order to find out where the fault is. For example, touch the brake drum with the hand to check whether the temperature is too high. If the temperature is too high, the hot hand is unbearable, it proves that the wheel brake has brake dragging fault. For example, by touching the vibration of the hydraulic tubing with the hand combined with listening to the noise of the hydraulic system, it can judge that there is gas in the system.

(2) measurement: is the use of simple instrument measurement, according to the measured results to identify the fault. For example, use a multimeter to measure the resistance and voltage in a circuit to determine the fault of a circuit or electrical component. Another example is measuring cylinder pressure with cylinder table to judge cylinder failure. Helin Heavy Industry

(3) Q: The operation conditions and time of the off-road forklift truck machinery, as well as the phenomenon and medical history when the fault occurs, are understood by interviewing the driver, so as to provide reference materials for fault judgment. For example, the engine oil pressure is too low. When judging this shelf fault, we should first understand that the oil pressure is too low. At the same time, we should also understand the use time of the engine, the maintenance situation and the oil pressure change with the temperature. If maintained properly But the engine is used for a long time, and accompanied by abnormal noise, that is, the crankrod mechanism wear too much, the gap between the parts is too large and the oil leakage increases, causing the oil pressure is too low if the usual maintenance is not good, that the oil filter clogging possibility is very large if the oil pressure suddenly decreases, that the engine lubrication system oil circuit appeared a large number of oil leakage phenomenon.

After the end of the off-road forklift mechanical coupling period, it enters the normal use stage. Off-road forklift in this stage of operation, as long as maintenance and correct use in accordance with the regulations, generally will not occur fault, even if the fault, is also random fault (this fault has hidden, maintenance or inspection is not easy to find), so the failure rate is very low, gentle curve. If the off-road forklift breaks down in the normal use period, it is mostly accidental or caused by improper use and maintenance.

We can let the maintenance service provider of off-road forklift truck to develop a comprehensive and reasonable preventive maintenance plan for our forklift truck, such as how often to check the side, the test list of program debugging, etc., these data can give us a reference for forklift maintenance. Secondly, the technicians should provide us with a list of items every time they check, so that we can better understand the existing working state of forklift trucks.

Cross country forklift machinery in the early use (equivalent to the phase-in period) the failure is from high to low (decline curve), the early use of failure rate is with the manufacturing or maintenance quality and the shelf use during the stage. If the off-road forklift machinery is manufactured or repaired of high quality, and can be used and maintained correctly. Then, the initial failure rate is low. Otherwise early failure rate will be high.