Benchmark BW4400 Mode D'emploi page 46

Detergent does Spray wand not in low
not mix with
water
Chemical screen not in
Chemical too thick
Inconsistent or Water supply is restricted
low pressure
Water supply not turned on
during use
Nozzle is clogged
Spray gun leaks
Air in line
Inlet hose screen is clogged
Water supply temperature is
Pump is faulty
Water leaking Loose connections
at spray wand
Worn spray wand o-ring
connection or
Piston packings worn
pump
Worn pump o-ring
Pump head or tubes damaged
pressure
cleaning solution
full power
over 100F
from freezing
Remove and attach the
black low pressure nozzle.
Detergents will only be
drawn at low pressure
Ensure end of detergent
siphone hose is fully
submerged into cleaning
solution
Dilute chemical. It
should look like the same
consistency as water
Inspect garden hose for
kinks, leaks, or blockages.
Use min. of 3/4" garden hose
Open water supply tap all
the way
Clean nozzle
Check all connections. Use
sealant tape if necessary
Squeeze trigger handle to
remove air in line
Clean inlet filter in warm
water
Use cool water supply
Contact technical support
Tighten
Replace
Contact technical support
Contact technical support
Contact technical support
39