7. SET CHEMICAL INJECTION:
If unit is equipped with inlet chemical injection,
place chemical pickup tube in pre-mixed chemical
solution and open chemical valve for desired
chemical concentration. Rinse and close valve
after use, do not use harsh chemicals through the
inlet injector system. Drawing air into the chemical
tube by leaving the chemical valve open will cause
the pump to lose pressure and may cause pump
damage.
If unit is equipped with a downstream chemical
injector, connect the chemical injection assembly
into the high-pressure discharge hose quick
connects. Place the chemical pickup into chemical
solution
and
turn
brass
collar
to
adjust
concentration. The chemical will inject only when
you drop the outlet pressure by opening the valve
on the dual wand or changing to a low-pressure
nozzle. Soap the surface from the bottom up.
Rinse and close chemical valve when not in use.
8. If equipped with an AF2 (2) gun operation,
select “50%” nozzle from panel and insert into
coupler on spray gun for full pressure output when
using two guns at the same time. Flow can be
reduced by selecting flow reduction nozzles only
when one operator is using the machine. Maximum
temperature is 200°F.
WASHING TECHNIQUES
When washing, always start from the bottom up,
and do the final rinse from the top down. This will
keep the water from streaking the surfaces that are
being cleaned. When applying chemicals, it is also
best to start from the bottom and work up.
In areas where there is no grease or oil present,
and the dirt is loose, cold water will be sufficient.
When it comes to grease, oil, and hard to clean dirt,
hot water and/or chemicals can make the job
easier, and speed up the cleaning process. For
applications that require even more heat and where
water use/runoff must be minimized, switch to the
steam mode (if equipped) and adjust the thermostat
for up to 250° steam.
For general washing use a broad pattern spray
nozzle such as the 40-degree nozzle. Backing
away from the surface and using the broad spray
nozzle works best to perform rinsing and delicate
surface washing. In areas where the cleaning is
more difficult and in smaller areas such as cracks
and holes, use the narrow spray nozzles, 0 or 15
degree.
Chemicals can be applied in a couple of different
ways. One way is with a hand spray pump. The
other is with the chemical system on the
equipment; either downstream or high pressure
depending on the system you have. When using
the high-pressure chemical system, do not use any
caustic chemical as this may cause damage to the
pump. For very harsh chemicals, it is best to use a
hand sprayer. First wet the surface and wash off
heavy debris. Test the surface to be sure the
chemical won’t harm it. Then apply the chemical
and let it work in for couple of minutes before
rinsing. Do not allow chemicals to dry on the
surface.
When rising off the chemicals always start from the
top down. When finished using the chemical, be
sure to rinse out the chemical line and valve with
fresh water to prevent clogging.
SHUT DOWN
1. Turn burner switch to the off position.
2. Rinse & close chemical valve.
3. Squeeze the trigger on the spray gun until the
water becomes cool.
4. Turn
motor/engine
switch
off
with
the
appropriate controls. Turn off diesel engine units
by pulling the throttle kill lever.
5. Turn off water supply.
6. Squeeze trigger to release any trapped
pressure in discharge hose.
7. Disconnect & store hoses.
8. Antifreeze equipment:
In the event that the equipment is not to be used for
an extended period, store in heated space or
antifreeze the unit. Run the machine until the float
tank is near empty, fill with a 50% mix of water and
antifreeze and run until antifreeze appears at the
high-pressure outlet. If unit is equipped with a
blowout valve, it may be blown out with
compressed air in addition to using antifreeze
solution.
On direct feed units (no float tank), use a 5’ garden
hose to draw the antifreeze mix from a bucket or
blow out the unit with compressed air until only air
and no water comes out of the discharge.
APPEARANCE:
To maintain appearance of the power washer, use
stainless steel cleaner on the stainless steel
panels.
MAINTAIN PH BETWEEN 5 & 9
OPERATING INSTRUCTIONS
6
