MEASURING TUBE

550 210 68 MEASURING TUBE is essentially the dedicated channel where your rig's air flow gets properly measured. Think of it as the 'eye' for the system, telling the control unit exactly how much air is actually moving through for flushing or powering the DTH hammer. Without an accurate reading here, the machine's just guessing, and that's not how you want to run a drill, especially when you're trying to hit target penetration rates.

When this measuring tube starts to go, you'll usually notice it in your drilling performance. The most common thing is inconsistent flushing – you might see cuttings not clearing as well, or the hammer just doesn't sound right, maybe a bit sluggish or inconsistent on impact. Sometimes, you'll get erratic air pressure readings on your display, jumping around even when the compressor output is steady. That's a pretty good sign something's off in the measurement path, and it can really mess with your bit life and overall efficiency.

Replacing this isn't usually a huge job, but it's crucial to get it right. Always check the sealing surfaces and O-rings when you swap it out; a tiny leak here can throw off your readings just as much as a worn tube itself. And don't forget to inspect the upstream and downstream piping for any debris or build-up that might have contributed to the original part's failure or could affect the new one's accuracy down the line. A clean path is key.