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Mechlift Products - Problems and Solutions:
Overheating your hydraulic system
Any fluid forced through an orifice generates heat. All valves consist of orifices and have fluids pumped through them. Further, all valves are designed then rated for pressure and volume.
The hydraulic systems engineer in designing the customers application, takes all these pressure and flow ratings into account to ensure that the system does not overheat.
Typically hydraulic oil as used in truck hydraulics should never exceed 70ºC. As a rule of thumb, if you cannot touch a pipe for longer than 15 seconds, the system is overheating. Overheating damages the oils lubricity, melts seals / o.rings, and does more harm than good. See this photo:
This part is made from HDPE (High density polyethylene) Our in house tests have shown that this kind of melt down happens when the oil is allowed to exceed a continious 110ºC. Of course the material swells, ports block up and the lifter fails meaning the truck is off the road. All this is quite unnecessary. So the Golden Rule is, If the pipes are too hot, have your Dealer check out the hydraulic systems
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