Delta DT2400CS - Manual (Page 10)

10- ENG D27918
6. Reinstall cleaning solution tanks. Tilt cleaning solution tanks toward engine,
slide onto handles, and snap into place.
7. Attach cleaning solution hose to barb fitting on control valve located at the
rear of unit.
8. Add engine oil (supplied) to engine. Refer to Engine Owners Manual
supplied by engine manufacturer for correct procedure.
NOTE: There will be a slight amount of oil in the engine from factory testing.
barb fitting