this thing isn't shown in the owners manual, - however, there is something resembling one on the left hand side on the body - it's a small fitting with a ball in it-assuming that's it how does one get oil into it- it's too small for an ordinary oil can nozzle and you can't shove the ball back with a nozzle( at least i assume you shove the ball back to get the oil in) about the only thing i can think of is a syringe and needle- anybody else got a suggestion?