Delta D28650 - Manual (Page 9)

9- ENG D28650
The shipping plug must be removed and replaced with the
dipstick/oil plug before operating pressure washer.
7. Using a 17 mm wrench, remove shipping plug from
pump by turning it counterclockwise. Discard plug.
8. Remove dipstick/oil plug from plastic bag and install
into pump, tighten securely.
b. Push grommet into place.
c. Repeat steps until all grommets are assembled.
5. To Assemble Quick Connect Nozzles:
a. Remove five colored quick connect nozzles from plastic bag and insert
them into correct grommet. NOTE: Nozzles are color coded to match
colored nozzles on panel.
6. 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.
NOTE: The high pressure pump was filled with oil at the factory. There is no need
to add oil at this time, see the Maintenance section of this manual for
Maintenance information.