I'll give that question the answer it deserves: That could only happen if you flush a razor blade that doesn't make it through the joker and keeps sawing on one "lip" till it cuts it off.
-Peggie
Raritan PHII lubricate piston from top?
- Thread starter skunther
- Start date
-Peggie
Where did you find the 1/8” MIP to 1/16 tube adapter? I cannot find one anywhere.
The small grease gun doesn't have a brand name or model number on it anywhere. Chinese knock off for sure. I've had it for decades, before Chinese knock offs even became popular.
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Shown below is how to assemble one after taking the grease fitting off the end of the 1/8" pipe. The fittings may not be the most compact as I made this from spare parts on hand.
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The closest grease gun at Amazon.com is this one :
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I used the smallest one as it doesn't require a full grease can of SuperLube to fill it.
The 1/8" OD X 1/16" ID poly tubing is also available from Amazon;
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The 1/8" MIP X 1/16" adapter may be available from Amazon but watch the OD and ID tube sizes as the sellers are a little confused in some cases. Get an FIP X barbed fitting and you can eliminate the brass connector to simplify life a little.
After a close look at the amount of piping around the bowl which allows for a clean water flush at the end of the day, there is no way I intend to annually open either the bottom of the pump base or the joker valve housing for lubrication. I'll open whichever, when the need for repairs arises. If the Jabsco joker valve is any indication of life expectancy, that'll be many years from now with the Raritan.
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I also get the impression from Peggie that you'll get an indication as to when your joker valve starts to fail.
Why the joker vlave on my old Jabsco went for so many years without any attention may be due to my previous habit of dumping a gallon of fresh water into the bowl at the end of the day while pumping on dry :
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I know this raised hell with the piston ring as the upper cylinder was dry, but that's all in the past and best left there. The current Raritan sucks water from the sink drain at close up time and the cylinder is always full on both sides. Oh, how I envy lake sailors.
The O ring (part #23) which acts as the gland packing comes up with the shaft and is greased with SuperLube and then pulled off the shaft over the threads. The grease always prevents cutting the O ring if you're careful. Also, keep track of O ring #24.
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The process is a walk in the park after the first time you've done it. And most important to me, It's absolutely CLEAN.
Take a look at the attached cheat sheet which I prepared for a friend who also works on the boat (at very rare intervals) and wanted to do it from scratch.
My 1/16" X 1/8" NPT came from a prehistoric pneumatic controls job. The tubing end was a combination 3/32" to 1/16 tip. I don't think they even make them any more they are so unique.
Try this one from Amazon or contact MettleAir for an adapter with a 1/8 FIP end which might be a little more compact.
Try this one from Amazon or contact MettleAir for an adapter with a 1/8 FIP end which might be a little more compact.