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The lift cannot lift or the lift force is weak

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The solution to the elevator problem is as follows:
⒈ The pressure adjustment of the relief valve does not meet the requirements. Adjust the pressure to the required value.
⒉Inner leakage of oil cylinder See the elimination method of item 2.3.4.5 above.
3. The reversing valve is stuck or leaked.
⒋The oil level is too low and the oil inlet filter is blocked.
⒌The fuel pump is faulty.
⒍Check valve leakage Check the wear and damage of the check valve core and valve seat, check whether the check valve spring is fatigued, deformed, etc.
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