Operating instructions
12
Operations
Pre-Run Inspection
1. Check all fittings and connectors for proper 
assembly.
2. Check all hoses for leaks. Repair or replace any 
damaged hoses.
3. Check power cord(s) for any damage. If damaged, 
replace.
Equipment Set-up
1. Plug power cord from machine into properly 
grounded wall outlet.
2. Turn vacuum motor switch on and off to make sure 
there is electrical power at machine.
3. Connect vac hose to machine. Slide the swivel 
cuff over the outlet on the tank.
4. Connect the hose to your machine and wand. Pull 
back the knurled collar on the quick disconnect 
coupler and push onto the connection on the 
chassis. To avoid leaks, check that a positive 
connection was made.
NOTE: Wand orifice must be equivalent or larger than 
an 04 nozzle.
5. Using a clean container, fill the solution tank with 
clean hot water. Do not use water over 130°F. Mix 
in a non-foaming cleaning concentrate for use in 
hot water extraction machines, following the manu-
facturer's instructions printed on container.
NOTE: When using a powder cleaner, pre-mix with 
hot water in a clean container before adding to the 
solution tank.
6. Turn pump and vacuum switch(es) to the on 
position.
Cleaning
Always use defoamer if foaming occurs. Foam will 
suspend large particles that may damage 
vacuum(s) as well as allow liquid into the vacuum 
motor(s) without activating the float shutoff.
1. Prior to cleaning, make certain that the nozzle is 
functioning properly.
a. To check, hold the wand about one foot above 
the surface to be cleaned and open the wand 
valve. A full spray should be observed from the 
nozzle.
b. If the nozzle is not showing a full spray pattern, 
adjust nozzle for proper pattern, clean, or replace 
nozzle.
2. Normally, chemical is applied on the push stroke of 
the wand when cleaning. Vacuuming is done on 
the pull stroke. For heavily soiled carpets the wand 
may be used in a scrubbing manner, applying 
chemical in both the push and pull stroke.
3. When cleaning, keep the working opening (wand 
mouth) flat on the surface being cleaned. Keep the 
wand moving when the valve is open.
4. The shutoff float inside the vacuum tank will 
impede the vacuum flow when the vacuum tank is 
full. When this occurs, empty the vacuum tank by 
opening the dump valve and dispose of the waste 
in a proper manner. 
Once the vacuum tank has been emptied, you may 
once again proceed with cleaning.
86399190 Operators Manual - Dominator 150 psi 17 gallon










