HydraMaster RX20 NEXTGEN 120 VAC, Owner'S Manual, Page: 24 / 57

Owner’s Manual: 6-2
Clean or replace them as needed.
7. Check the spray pattern of each jet for uniform flow. An uneven spray will cause
improper flow of the cleaning solution (see Figure 6-2).
Do NOT spray the high pressure solution in your face or eyes. Bodily injury can
result.
8. Loosen the cleaning head (star assembly). It unscrews in the same direction it
turns during operation (or clockwise when
looking at it from the underside) - see
Figure 6-3.
9. After you have loosened the head
assembly, spin it off with your hands. If
the cleaning head is difficult to remove,
you may use a 3/4” socket wrench on the
exposed center nut. To prevent the gear
box from turning, insert a 5/8” wrench just
below the rotary union (see Figure 6-4).
10. Wash the cleaning heads and shroud
assembly with a garden hose, being careful
not to wet the electric motor assembly.
11. Clean any lint built up on the cleaning
heads and vacuum hoses (lint buildup will
Figure 6-2. Check Jet Spray
for Even Flow
Figure 6-3. Loosen Cleaning
Head Assembly
Rotary
Union
Figure 6-4. Location of Rotary
Union