SYMBOL 'WATER PRESSURE'

390 031 38 SYMBOL ''WATER PRESSURE'' is one of those small but mighty components you’ll find tucked into critical hydraulic or pneumatic connections on the rig. It's not just a flat piece of metal; this washer is designed to handle significant load distribution and prevent galling or damage to the mating surfaces, especially when you're really torquing down a fitting or a bolt in a high-pressure circuit. It essentially acts as a buffer, ensuring the force is spread out evenly so you don't crack a housing or deform a line connection over time.

When this little guy starts to wear out or gets deformed, that's when your problems usually begin. You might start seeing a slow, persistent weep around a hydraulic fitting that just won't seal up, no matter how many times you try to snug it down. Or, if it's under a bolt, you could get some unexpected loosening, which can lead to vibration in the assembly and, eventually, a more serious leak or even a component coming loose. A worn washer can also contribute to pressure fluctuations in a sensitive circuit because the seal isn't holding steady.

Alright, when you're swapping one of these out, the biggest thing is to always, *always* check the surfaces it's supposed to seat against. If there's any scoring, burrs, or deformation on the housing or the bolt head, that new washer isn't going to do its job right, and you'll be back at it in no time. And seriously, don't even think about reusing an old one; they're designed to deform slightly to create that proper seal and load distribution, so once it's been compressed, it's done. Just toss it and put in a fresh one.