March Pump Screw Question

[nutty_gnome]

Quick question: What is the thread pitch on the #8 1-1/4 inch round head screws that hold the pump head to the rest of the March 815 pump?

Reason: I want to start storing my brewing hardware outside. Because it will freeze over the winter, I want to remove the pump head after each use. The phillips head screws are not what I want to be fiddling with in the cold. I'd like to replace the screws holding the head to the motor housing with decent socket cap-head screws. Can anyone give me the pitch of the #8 1-1/4 inch stock screws? The pump is in storage and I'd like to have the screws on hand when I put it in the new location. Thanks!

 

[TheMadKing]

is it a UNC or a UNF screw?

UNC #8 thread pitch = 0.1629"
UNF #8 thread pitch = 0.1460"

 

[WPStrassburg]

http://www.marchpump.com/site/files/966/112279/382929/764072/march-series-815-0809-0053-1200-r5.pdf

#8-32

 

[IslandLizard]

Make sure to empty your chiller(s) too.

 

[IslandLizard]

Here's another thought:
After the clean/rinse cycle, why not blow the last water or Starsan out? That way you won't need to remove the head each time. Just put a cap or hoses on the ports so no water gets in.

I don't know how many screw/unscrew cycles the pump body could endure.

Or store the whole pump inside, away from frost.

 

[314alias]

McMaster 92185A199 is what I used to replace my ones on my chugger pump. 1" long 8-32 pack of 25. I can ship yah some I have extra if they work for a March pump.

 

[nutty_gnome]

Thanks guys! If it were simple to store the pump aside from the rig, I would. But that would require some thought and tool time. I'd rather spend it turning a few screws and making beer. Thanks for the info!

 

[Riot]

Got an air compressor kicking around? I store everything in an unheated garage in Canada, just have to blow all the liquid out before I put things away for the night

 

[IslandLizard]

Thanks guys! If it were simple to store the pump aside from the rig, I would. But that would require some thought and tool time. I'd rather spend it turning a few screws and making beer. Thanks for the info!

Camlocks make the fluid connections easy, unless it's all hard piped...

 

[nutty_gnome]

Can locks are in use with the pump. But the pump is mounted in a hard to reach area and I'm loathe to move it.