Plunger in the DOWN position is NormalPlunger in the UP position is Manual EngagedEB 30 Solenoid Valve BlockEB 30 solenoid Valve Block 5 x O-RingsEB30 Valve Block without Solenoid CoilsSolenoid Valve Block with Plug RemovedZF Solenoid Plug EB15 & EB 30 Plug TerminalsZF Solenoid Plug EB15 & EB 30ZF Solenoid Plug EB15 & EB 30 inside Wire Connections