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Author Topic: Ernst Plank 520 or 520/1 “Hercules”  (Read 494 times)

Nick

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Re: Ernst Plank 520 or 520/1 “Hercules”
« on: January 13, 2021, 01:14:03 pm »
Quote from: Woe is me on January 13, 2021, 12:56:54 pm
The catalog pictures look like your older fill hole.
The newer one looks like a safety valve, some what, Wilescoan.

Safety valve is built into the pressure gauge. The part that looks like a safety valve screws shut, I’ll get a picture...
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Nick
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