What should I inspect before purchasing a "used" Yong Heng compressor?
Do they come with a manual and spare parts?
Do they come with a manual and spare parts?
Yong Heng
- Thread starter Spokane2303
- Start date
Mine is a couple years old and came with a manual and some spare O-rings and filter elements. You might try searching for a manual on-line.
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Hard to tell from visual inspection how internals are doing. First caution would be to assure an authentic, made by YongyIheng Pneumatic Company. No notation, or other manufacturer, on metal ID plate(pictured), take a pass. Best way to test is install test plug (pictured) in end of fill whip, activate water cooling and pressure up. YouTube videos can demonstrate proper operations. Healthy Yong Hengs can pressurize to 250 bar quickly, shut off, check for leaks with soapy water spray bottle, release pressure. WM 
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Upper right corner of page, search, "molecular sieve," plenty of helpful compressor filter information. WM
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Thanks!
I've copied the label to my IPhone to compare side-by-side.
Never thought about a Chinese knockoff of an inexpensive Chinese compressor!
I've copied the label to my IPhone to compare side-by-side.
Never thought about a Chinese knockoff of an inexpensive Chinese compressor!
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Many high-pressure air compressor manufacturers in China jumped on the success bandwagon that YongyIheng Pneumatic Company created. The trickery and deceit deployed from manufacture to advertising boggles the mind. Haven't seen an ID plate labelled YongIheng Pneumatic, that wasn't authentic, suspect Chinese law eventually draws the line there. WM
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Send me your address (Private Message ) I'll send you a YH (authentic) manual from the one I no longer have.
Gerry
Gerry
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Yes! Coalescing filter followed by small molecular sieve tube filter here in the south for dry air.
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