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#754338 Mon Sep 07 2020 02:39 PM
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model72 Offline OP
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I recently purchased a 450 and have several questions. I have conducted research through oldgas search, but questions remain.
What is bonnet diameter? Height?
What do the three rods that attach the bonnet to jar lid look like?
What secures the safety glass to the jar lid?
I have seen a couple pumps with a special drain back dump valve that is activated with a rod between the drain back dump valve and the drain back lever. The parts diagram shows this dump valve. My pump has no evidence of this dump valve, but there is a slot in the skin for the rod to pass thru. Was the dump valve an option or standard?

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model72 #754630 Sun Sep 13 2020 06:28 PM
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model72 Offline OP
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I must have our purchased a really rare pump. No one has answers to any of my questions.

model72 #754658 Mon Sep 14 2020 07:39 AM
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I think I can help you. I have a 400 & 450. They're virtually the same except the 450 has small dial & handle on the front. Let me look if I have any pics when I get off work. If not, I can grab some pics and/or dimensions this weekend when I can get to the pump.

I'm curious does yours still have the small reset handle that has an arrow on it with the word "Up"?

Ryan

prowl1 #754701 Mon Sep 14 2020 09:42 PM
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model72 Offline OP
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Yes, my 450 has the short handle with an arrow, UP, and a steel knob. The majority of the positive stop parts were removed at some point.


Moderated by  Oldgas, Ryan Underthun 

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