I took the two solenoids on the bottom off first so it can sit better to work on. The pressure switch had green loctite (RAVE states loctite 572 @ 17proper torques or 23nm) on it but the relief valve next to it came off easy enough was only ptfe tape. Covers for solenoids are just two screws each. The way the holes align with different screws means it will be hard to get it wrong on reassembly with the unit as a whole, not that I’m concerned
I’m dubious as to whether someone has been in here before...
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The solenoids and contacts seem to be original but colour coded, the colours don’t seem to match up in any order?
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If you look there are two different types of screw, the larger rounded ones hold the solenoids in, the diagonally opposing smaller 2 hold the mechanism together. If you take the wrong ones out it’s no biggy, they appear to be just spacers and will only fit back one way
The left (above pic) has the top o-ring fitted the right has not.
There are 2 more o-rings underneath each
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They sit like this, you shouldn’t get mixed up as they only marry up to the solenoid on the one hole underneath -
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