Product Manual

11
Buffalo Series • Rev. 2/4/2016
9. Prior to storage – Inspect the pressure washer for any damage or required maintenance. Do
not expose machine to temperatures below freezing (0
o
C/32
o
F).
10. Warning – If unit is left running while not in use, pump damage will occur. Do not leave
unit running while not in use!
CHEMICAL APPLICATION
Downstream Chemical Injection: Standard (Direct Drive Units)
High Pressure Soap (Belt and Flange Driven Units)
NOTE: Do not remove back flow preventer as chemical may flow back into potable water
source. For standard chemical injection, ensure the black nozzle is properly fitted at the
end of the wand. The chemical injector will not function if this nozzle is not fitted.
1. Chemical preparation – Select detergent/chemical that best suits your cleaning task. Prepare
dilution according to the manufacturer’s instructions. The volume of chemical being used may be
adjusted at valve located on the chemical injector. Note: for EK Pumps, the volume is preset and
cannot be adjusted.
2. Insert the intake hose, located on the chemical injector at the pump, into the chemical being
used.
3. Fit black nozzle on the standard wand, or for the dual wand, turn adjustment knob on, and
adjust for required flow rate. For high pressure soap systems, the black nozzle is not needed; use
one of the other wand nozzles.
4. To apply chemical, engage trigger on pressure wand assembly. Turn chemical injector’s nipple
to adjust flow. For the high pressure soap systems, open ball valve and engage trigger.
5. Chemical can now be applied through pressure wand assembly. It will take 5 – 15 seconds for
chemical to travel to spray nozzle. The volume of chemical being used may be adjusted at the
chemical injector.
6. For best results apply chemical from bottom to top, and allow for proper penetration time prior
to rinsing. Do not allow chemical to dry. Rinse from bottom to top and then top to bottom.