Clean hydraulic heads with non-petroleum solvents whenever possible to reduce contamination of traveling surfaces and hydraulic interfaces. Not all makes of hydraulic tools have the same type of seals. For example, certain petroleum-based products may negatively affect rubber or neoprene O-rings on pistons and ram followers. In fact, some tool manufacturers will require the use of specific solvents while others will restrict the use of these same solvents. Non-petroleum based solvents, however, are safe to use in virtually every application. If you’re unsure about what solvent to use, check with your tool manufacturer twice.Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:diesel engine concrete mixer,concrete batching plant,etc. We will provide you with the best product and service. Clean your hydraulic tool daily when you’re using it in adverse conditions. Working near salt water is probably the worst situation. While most hydraulic tool manufacturers test their products in salt-spray chambers during design and certify they can withstand such exposure up to 24 hr or more concrete mixer, it’s still important you clean your tool after each use in such an environment. Most manufacturers recommend flushing the tool with clean water and wiping it down with a recommended solvent. If you fail to do this, you can expect long-term damage. Also, the “dirty” tools might contaminate other tools stored in your gang box.