Elkhart Brass SM-2000E-HF - Manual (Page 8)

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4. Submerge the pilot valve assembly in warm soapy water. While
submerged, depress and release the spring-loaded pilot several times.
Do this by inserting a ¼” wood dowel (or plastic end of a pen) into the
open end of the pilot guide stem.
5. Remove the assembly from the soapy water. Using an air nozzle and
a pressurized air source, blow air through the holes in the spring
adjustment nut to remove any debris.
6. Apply a light coating of grease to the pilot valve assembly threads and
stem.
7. Re-insert the pilot valve assembly making sure that the o-ring in the
back of the baffle head is aligned with the pilot valve port in the piston
head. Screw the pilot valve assembly in clockwise by hand until it is
firmly tight.
8. Apply a drop of Loc-Tite removable thread locker to each retaining
screw. Insert the screws through the holes in the flood plate and into
the baffle-head. Tighten the screws firmly using the
5 /
32
” Allen wrench.
C) Storage
After use, the nozzle should always be stored so that the tip is pointed
downward. This will allow the water to drain from the nozzle.
D) General

On a monthly basis, operate the pattern control through a full range of
motion from full fog to straight stream.

If required, apply a light coating of lithium grease to the nozzle body in
the area where it contacts the pattern control sleeve.

Inspect and clean the pilot assembly as outlined in Section IV
Maintenance B) Pilot Assembly. Do this quarterly or as dictated by
water conditions and frequency of use.

Periodically check that fittings are leak free and replace gaskets as
required.