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I hate those 765's. Not well made. It's probably the wiring harness in the arm or a board. Hard to really resolve that issue reliably. You might want to consider upgrading to a handheld unit or find some other x-rays to put in there. I love Gendex 770's

There is a whole row of fuses. They are on the left. Use the multimeter to check them out with power removed to the unit. This is either done by unplugging it or by flipping the circuit breaker be careful, as you know that electricity can bite you

@@DentalEquipmentRepairChannel Got it. Thanks. That did the trick. I jumped the 10A fuse with a wire and power came on. I should have seen them. So obvious. Thanks for the quick reply.

Only if you want more problems. All of the solid biofilm material could potentially clog your inground suction pipes. That would be way worse than the original problem. The purpose of using the bottle is to remove any chunky solids entirely from the system. I am not saying that what you are proposing would not work, but I think the risk of damaging your system is higher and I wouldn't no way ever. Suggest anyone run that risk. If you ruin or clog the pipes inside a cement slab, you have to cut the cement slab open to fix it or figure out a different way to run Suction. To anyone else reading this comment who thinks that it might be a good idea just to hook it up straight, please don't because you can seriously damage your dental office Suction system.

@@user-cc2hg2rc7j I'm not familiar with that chair. Maybe look for the service manual online or call the manufacturer.

@@mathiasgonzalez1849 you can get this happening when there is a pinched line or a clog. Trace the line back and see where you have normal pressure. A common culprit is a one-way check valve.

2 issues. #1 is to relieve the hydraulic lock by loosening the hydraulic hose on the manifold to relieve pressure on the cylinder. This is dangerous and possibly very messy. #2 is to adjust the soft limits on the chair so that it won't go into the highest mechanical position and create a hydro lock. A qualified tech should know how to do this.

What does the air gauge say in the floor box of the chair? It should be at 80 psi.

@ thanks for reply! the gauge under chair( floor box) show 100psi. The gauge at tray platform (link to high speed hand-piece) show 20psi.

@ the high speed handipiece show only 20psi no matter adjusted to maximum, which cannot drive the high speed handpiece. However if I put back high speed handpiece in handpiece hold slot ( like cut off the air tube ) and press foot control on for a minute , then remove handpiece out from slot ( like to release the air tube ) then the handpiece gauge can reach to 40psi. I have to do so each time if I want to use the high handpiece. It is annoying!

@@yanliu9765 is this rear delivery? If so, it might be possible that there is a hole inside of the hose. To check, fold the handpiece hose in half at the end by the handpiece. Step on the foot pedal. If the gauge spikes to maximum and there is no major air sound, this is normal. If the gauge only goes to 20 or 30 and there is a loud air noise in the delivery unit , you need a new handpiece hose.

@ Thanks very much for your expert advice and I will test the hose tomorrow . It is not rear system. All the arms are on left side by connecting to the base frames of the chair. I am a right-handed person.

Sorry about that.

Only when the syringe leaks. Having spare buttons handy is a good idea.

Thanks for watching!

Ha! Yeah, the fun of unscripted videos. If you check out the last video, you can see that the issue was the absence of a spacer. Thanks for watching!

Adec tech support can help you. Where are you located. Maybe I know someone in your area.

It seems to be working - but I have the red and green buttons (green to auto lay patient back, red to return to sitting) and they do not seem to be doing what they are supposed to now. They both just make the chair go down and back fully.

@@dpetersontubebased on the colors of the buttons, this sounds like an older adec decade chair. If that is the case, the foot pedal wires could be shorted, causing the chair motor to continue to drive. This would smell bad if it went long enough. Maybe a new foot pedal could help. Without more info, check the compatibility of a DCI foot pedal, PN 9588. We can provide that if you are not a dealer. Email us at payments@bidentalmi.com if you want more help. Cheers. Jason

Hi! We can help. Email us at payments@bidentalmi.com

I’ve got a dental head. HMU with an email

Hello!

I'm not sure what you are describing. The air water syringe? The saliva ejector? The High volume evacuator?

That is true. Thanks for watching the video! 🫡

@@alyssamokrzycki1852 replace the tubing. Have your service tech do it and train you.

@@DentalEquipmentRepairChannel do you know the going rate for calling in a service tech? I currently work in a very small dental office. I would love to try troubleshooting something’s by myself lol however if we need to call a service tech we will. Everything works, just the pressure of the hand pieces and suctions are weak. The dental system unit is pretty old.

@@alyssamokrzycki1852 email us if you would like to hire me for remote service. Payments@bidentalmi.com - we can try to help you.

Nitinol.

@@vallejokid1968 thank you, this comment means a lot. Have a great weekend.

This is so cool! I'm happy the videos are helpful. I wish you much success!

@@dr.markj.warnerddsinc.4625 thanks! I don't think that is possible. Call Adec with the model number of your delivery unit and the description of the hose you need for a part number. You can order it from your supplier and have them replace it. You can also go for a less expensive extruded hose from DCI.

@@coenmulders these guys have tooling, parts and instructions. Good luck. premiumhandpieceparts.com/

@@TCG2033 thanks, if a little compressor grease is the worst thing I get on my hands, I'm having a good day. Good looking out on the PPE though. Thank you!

@@DentalEquipmentRepairChannel 🙏 all love thanks for sharing our craft to the world.

I have tried to explain the importance of checking capacitors to my coworkers but I’ve recently been sent out to replace 3 compressors that just had a blown capacitor. They thought the heads had seized. Appreciate you showing this in your video.

Sometimes the existing coupler is against the concrete slab or there is a reason we want to re-use existing piping. There is sometimes no way to remove the coupler and still have any pipe left to glue another fitting to. If we're already there working and maybe don't have a particular fitting or room to work, this is a good solution.

It's a private group. You need to be friends on Facebook with a member to get an invite. I see your email and will respond there.

Use what works for you. I don't like the Pureway separators because of the narrow piping. They are not optimal for dry vacs. Plus I think they leak sometimes because of the piping designs. Check out Mars. It is a superior product.

Yes, it is normal for saliva projector to slow down when the HVE is open. There could be some obstruction in the saliva ejector if you suck fluoride varnish into it. Also double check that there is not a little screen that is clogged inside of the saliva ejector. I am curious, when is a time that you would use both the HVE and a saliva ejector during patient care? It seems like a lot to stick in the mouth at once. Just curious.

@@DentalEquipmentRepairChannel Tq for answering my question. For your questions, my user sometime use HVE as fume oral extractor infront of mouth and saliva injector will be in mouth during patient care. They also use both when using nitrate oxide machine.

@@sandwel3273 I see. The HVE is not really good to use as a fume extractor. As far as nitrous, the HVE should be at 1/2 power or less. See if there is a difference room to room. If so, see if there are blockages in the valves or clogged lines. If not, you might need a more powerful vacuum for your office. I can help you assess your vacuum - email me at payments@ bidentalmi. com if you would like a private consult.

@@DentalEquipmentRepairChannel yeah I think I need more powerful suction pump. By the way, Hi from Malaysia...

@@sandwel3273 that is awesome! I would love to visit your country.❤️

Hey there, This is a great career. I enjoy what I do a lot, but there is a ton to learn. There are hydraulics in dental chairs, so your forklift experience will be a help doing this job. FYI, my background was originally an aircraft hydraulics technician. I crossed over to a biomedical equipment technician in hospitals. I started this business 7 years ago and it has been great to specialize in dental. You can reach out to me at jason@bidentalmi.com if you want to learn a little more about out what opportunities are near your geographical area. Thanks for watching!

@@DentalEquipmentRepairChannel Thankyou!

@@NoraTTang email payments@bidentalmi.com and we can help you

They are usually the same sized wheel like you saw in the video

Have a qualified technician do it. If you do not know how to do it, this is not what you want to experiment with. Have your technician train you during the service call.

@@stephaniemosier2047 hello, you can only join if you are Facebook friends with a member. Email jason@bidentalmi.com with your info and confirmation you are a technician. It's a technician only group.