Hydraulic wrench in use, the normal oil change, hydraulic wrench can ensure the use of efficiency, not to make the hydraulic wrench suddenly found no oil in the work caused by errors. Hydraulic wrench oil is specified, such as the use of one of the following problems need to be replaced:

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1, into the dust so that the oil dirty.

2, smell.

3, into the water, oil emulsion.

4, deterioration of color, these problems will affect the normal use of hydraulic wrench pump. There are generally manufacturing-type enterprises in the work environment is relatively clean, the use of low frequency, but also at least six months to replace

Hydraulic wrench recommended for the first time, then work 48 hours a day to replace the hydraulic oil. Like wind power installation companies use a relatively high frequency, poor working environment, then suggested at least once a month.