Vevor pressure gauge kit

Anyone used this to know if it's total junk or ok junk? I don't think I'll need it often which is why I don't want to buy an expensive kit. VEVOR Hydraulic Pressure Test Kit, 10/100/250/400/600bar, 5 Gauges 13 Couplings 14 Tee Connectors 5 Test Hoses, Excavator Hydraulic Test Gauge Set with Carrying Case for Excavator Tractors Machinery | VEVOR US VEVOR Hydraulic Pressure Test Kit features 5 durable gauges, 13 couplings, 5 hoses, and a portable case, perfect for precise measurements in heavy machinery. www.vevor.com

I have a similar set I got off amazon. I bought it mostly for the test fittings and adaptors, and its been fine. Its nice to have plenty of gauges when you are trying to troubleshoot.

Depends on how accurate you need to be.

Has anyone used these Vevor gauges and can report on their accuracy?

I have used the Vevor gauges for calibration on hydraulic equipment and pressure gauges. They make a nice kit and while they work, don’t expect too much. Heavy use and Vevor doesn’t usually work out great but if I needed a kit for personal use, that’s the kit I would buy. As for accuracy, they work well enough for calibration certificates.

HarleyHappy said: I have used the Vevor gauges for calibration on hydraulic equipment and pressure gauges. They make a nice kit and while they work, don’t expect too much. Heavy use and Vevor doesn’t usually work out great but if I needed a kit for personal use, that’s the kit I would buy. As for accuracy, they work well enough for calibration certificates. Click to expand... Thanks. I'll probably end up using it a couple times a year, maybe 3 or 4.

I’ve had less expensive gauges like that and have bought quite a few Cat gauges. Riding around in a truck they all suffer the safe fate. Last year I bought the Bluetooth setup from Tifco. While spendy it is quite handy.

I bought the vevor set but still haven’t used it.

I have a name brand quality set I haven't used except a few fittings, I'd loan it.

I don't remember if it was Vevor or Ebay, but the set I have looks identical. Works fine for my needs. Has a full selection of SAE and metric fittings. Straight fittings and drop-in Tee fittings with guage line port. Really can't beat it for the price. It sure is nice to have a decent set of guages rather than scrounging around and cobbling something together just to get by!

Maybe I should explain some of the uses I might have for a gauge set first. The main issue right now is with my Mecalac. When the machine is cold (most of the time at this point of the year, since I only use it for brief intervals), some of the functions continue to move a little after I release the joystick. My thought is that maybe the pilot pressure is low, and not returning the main spool to center as quickly as it should. The service manual has a test procedure for checking the pilot pressure, but unfortunately does not explain how to adjust it.

materthegreater said: Maybe I should explain some of the uses I might have for a gauge set first. The main issue right now is with my Mecalac. When the machine is cold (most of the time at this point of the year, since I only use it for brief intervals), some of the functions continue to move a little after I release the joystick. My thought is that maybe the pilot pressure is low, and not returning the main spool to center as quickly as it should. The service manual has a test procedure for checking the pilot pressure, but unfortunately does not explain how to adjust it. Click to expand... Perfectly normal. If you haven't changed the fluid in it, lighter oil will help. Excavators do the same thing when it's under 10F.

Most mfrs I have come across state checking and adjusting oil pressures must be done at least 120°F but not above 165°F. If yer spools ain't centering fast enough, your oil is probably just too danged cold.

I have bought several things (tools,diesel heater,power pack)from vevor and impressed with the quality

Shimmy1 said: Perfectly normal. If you haven't changed the fluid in it, lighter oil will help. Excavators do the same thing when it's under 10F. Click to expand... If it's normal, why doesn't my other excavator do the same thing? funwithfuel said: Most mfrs I have come across state checking and adjusting oil pressures must be done at least 120°F but not above 165°F. If yer spools ain't centering fast enough, your oil is probably just too danged cold. Click to expand... Yes I do believe the manual says to heat the oil to between 50 and 60°C before testing. I think the colder temps are making the problem more noticeable, but I don't think that's the only factor. My other excavator doesn't have the same problem, or other excavators that I've run at these temps. The boom cylinder rod continues to move quite a bit after the joystick is returned to the center position, I haven't measured but I would estimate 1.5" at times. That makes for a lot of unwanted boom movement.

Are the machines comparable hours and the same model? For example the return to tank hose might be a -4 or -6 on one machine and a -6 or -8 on the other. The return filter could have a but more restriction on one than the other. One could have a slightly tighter fit from spool to valve than the other. Lots of variables, bottom line, you're really not supposed to "work" cold oil. You're supposed to exercise the machine, no load to warm up the oil . Cold oil can't change direction quickly so there is risk to actually break pump internals.

No they aren't the same model, and there are a lot of variables like you mentioned. I just figured when he said it was perfectly normal that it meant common to all excavators. Anyway, like I mentioned, I think the cold temps just make the underlying issue much more noticable. Even during warmer weather and when the machine is at normal operating temps, the response to some functions is slower than what seems normal to me. Another reason I suspect pilot pressure is that the bucket coupler circuit often has trouble unlocking. From what I see in the hydraulic diagrams, that is operated by pilot pressure. If the pilot pressure is low, would it be causing these issues?

materthegreater said: No they aren't the same model, and there are a lot of variables like you mentioned. I just figured when he said it was perfectly normal that it meant common to all excavators. Anyway, like I mentioned, I think the cold temps just make the underlying issue much more noticable. Even during warmer weather and when the machine is at normal operating temps, the response to some functions is slower than what seems normal to me. Another reason I suspect pilot pressure is that the bucket coupler circuit often has trouble unlocking. From what I see in the hydraulic diagrams, that is operated by pilot pressure. If the pilot pressure is low, would it be causing these issues? Click to expand... A bucket coupler working off of pilot pressure will react to a slight pressure change as Force= Pressure X Area If the pressure drops 10 % you could be not holding quite as tight. All this is assuming the packing in the cylinder is okay. Post a picture of it and maybe more insight will flow. Simon C

It depends on the mfr. Some use a 4 port, some use 5 port valve. Most all use raised main pressure to lock and unlock, but have pilot to continuously provide make-up oil. What kind of coupler you got?

The coupler is a Mecalac Connect coupler. I'm not sure if I am reading the diagram correctly - it may not actually use pilot pressure. It's not that it won't hold the attachment, it won't release sometimes. It acts like the valve that controls the coupler cylinder isn't fully opening to allow the cylinder to retract. Here is the diagram: Here is the pilot pressure test procedure: Anyway, my thought is that if I had a pressure gauge set, I could check pressure at various places to try to determine where the problems are. For example, I would compare the pressure on the inlet side of the coupler valve to the outlet pressure to try to determine if the valve is opening fully when I activate the coupler release switch.