GE Triton XL Middle Spray Arm missing O-ring

Dishwasher Repair
1

The photo shows the pipe that feeds the centre middle spray arm.

I have read on a fixya forum (http://www.fixya.com/support/t551718-ge_triton_dishwasher_middle_spin_arm_not that people suggest that an o-ring is missing off the pipe that protrudes (shown in the next photo).

I could not see an o ring on the parts diagram http://www.appliancepartspros.com/partsearch/frame_diagram.aspx?diagram_id=22350626&pkw_=basket&model_id=5245711&NewWindow=1
Do people agree a oring is missing?

2

I came upon this old thread while searching for GE Triton XL.

Just a note regarding the first photo posted - the middle spray arm is upside down. The spray jets (multiple holes) should be facing the upper rack.

See this service guide here, p 20 “Middle spray arm” - http://thisoldappliance.com/library/ge_dw_techsheet.pdf