1, the system did not work and stop or cut off when the control power drain when the system prohibited maintenance, to prevent personal injury.

 2, repair site must be kept clean and remove components, or loose fitting outer surface dirt should be removed before, during maintenance in time with a clean cover all exposed openings sealed to prevent contamination immersion system, Polish is not allowed on site maintenance, construction and welding operations.

 3, repair or replacement of parts must be kept clean, do not have sand, dirt, welding slag, etc., you can first rinse, another for installation.

 4, replacement of seals is not permitted to use sharp tools, attention, or may not work seals the surface bumps.

 5, demolition, decompose hydraulic component parts to the attention of the direction and sequence of demolition and retain, not lose, do not be finishing the surface bumps. Component assembly, all parts must be cleaned.

 6, the installation of components, tighten the strength to even appropriate, to prevent deformation caused by the body, occupies a position spool stuck or leaking.

 7, the working fluid tank replacement or supplement, the new oil must be filtered through the high-precision filter oil into the tank car. Grades must meet the requirements of the working fluid.

 8, are not allowed on the accumulator shell welding and processing, improper maintenance can cause serious accidents. Problems should be promptly returned if found factory repair.

 9, the maintenance is completed, confirm the need for repair parts. Correct, according to the hydraulic system to adjust the content of a debug and observe the repair site, confirm the normal, can be put into operation.