Hayward diverter 733 disassembling

Jim Savage

Well-known member
Jul 5, 2020
47
West Gardiner, ME
I've been getting a lot of air coming from my returns this year. I'm thinking the old Hayward diverter is a likely suspect. Parts are lean but I managed to locate a seal and spacer kit, though, I could benefit from anyone's pointers on disassembling this. Thanks in advance for any advice!
 
Don't use power tools on the screws. They strip easily and if overtightented you can crack the base and then you have a big PVC repair replacing it.

When installing the screws, turn the screw counterclockwise until it drops into the original threads and then go clockwise to tighten. Crossthreading will ruin the threads quickly.

 
I was sort of hoping someone had a little guidance on removing the handle. I haven't examined it closely and it very well might be ridiculously straightforward but it's probably 30 years old and I'd rather not break it and suddenly be in a crisis. There's painfully little information about it on the internet.
 
Post a pic of the handle.

All the handles I have seen have a nut on the stem you remove and the handle pulls off straight up.
 
Ok, I did the deed. It was really pretty easy. The good news, the seals were easy to replace. The bad news, the key seal was pretty shredded and ALMOST unavailable anywhere. I managed to find and order one, paying way more than it should be worth, but to me it's more economical than buying a new valve. I'll be installing that when it comes in.

Disassembling:

Remover 8 cover screws and remover cover, handle, and key assembly as a unit. NOTE: pay attention to the orientation of the cover with respect to the outlet.

Drift the pin holding the handle to the key out using a punch and a hammer using light taps. This is almost able to be done with hand pressure alone.

Remove handle and spring from key.

Remove the seals and key spacer.

Install cover seal

Install key spacer first. Then lubricate key seal with silicone lubricant and install on key.

Install key into cover.

Handle installs reverse of disassembly and can only install one way.

Reinstall the assembly into the valve body, paying attention to the orientation of the cover to the outlet.
 
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