Bannerman
Well-Known Member
I viewed both Wrekin's and Gap's web sites. Neither appears to offer a Green cap version, only White for the 5600SXT. Along with Ditttohead's point, perhaps the distributor in the UK, did not obtain Green caps bur instead chose to use White for both 5600 mechanical and 5600SXT downflow pistons?
Although Wrekin says to match the Nylon cap colour when selecting a replacement piston for the 5600, that makes things confusing to verify the appropriate piston was obtained for a 5600SXT.
As the piston version modifies the timing for various regeneration processes for the 5600 mechanical, it makes sense for the 5600SXT/SE controllers to use a different piston since all settings are adjustable using the digital controls.
I suggest contacting the supplier who sold you the current piston to ask how you may verify your piston is the correct one for your 5600SXT. You might suggest they may have supplied the piston designed for the mechanical valve.
You will need to obtain the correct 2.0 gpm DLFC restrictor regardless.
Although Wrekin says to match the Nylon cap colour when selecting a replacement piston for the 5600, that makes things confusing to verify the appropriate piston was obtained for a 5600SXT.
As the piston version modifies the timing for various regeneration processes for the 5600 mechanical, it makes sense for the 5600SXT/SE controllers to use a different piston since all settings are adjustable using the digital controls.
I suggest contacting the supplier who sold you the current piston to ask how you may verify your piston is the correct one for your 5600SXT. You might suggest they may have supplied the piston designed for the mechanical valve.
You will need to obtain the correct 2.0 gpm DLFC restrictor regardless.