Not guilty m'lud, it's your dirty mind that's seeing rude things in my drawing 
mind you I did mention 'nipples' 
Those test point connector you've listed are what should be under the dirt cap, you’d need the hose fitting that screws on to it so you can pump in fresh fluid. (Damn it I've said 'screws' now, this thread is gonna get locked for being rude if I'm not careful )
mind you I did mention 'nipples' Those test point connector you've listed are what should be under the dirt cap, you’d need the hose fitting that screws on to it so you can pump in fresh fluid. (Damn it I've said 'screws' now, this thread is gonna get locked for being rude if I'm not careful
)