Simpson PRO3800PW Instruction Manual page 22

OPERATIONAL
ISSUE
No or low
pressure
(initial use)
Will not draw
chemicals
POSSIBLE CAUSE
Spray wand not in
high pressure
Low water supply
Leak at high pressure
hose fitting
Nozzle obstructed
Water filter screen
clogged
Air in hose
Choke in the
"Choke" position
High pressure hose
is too long
Spray wand not in
low pressure
Chemical filter clogged
Chemical screen not
in cleaning solution
Chemical too thick
Pressure hose is too long Lengthen water supply hose
Chemical build up in
chemical injector
SOLUTION
See How to Use Spray
Wand instructions in the
Operation Section
Water supply must be at
least 5 gpm @ 20 PSI
Repair leak. Apply sealant
tape if necessary
See Nozzle Cleaning instructions
in the Maintenance section
Remove and clean filter. See
Cleaning Water Inlet Filter
paragraph in the Maintenance
section for the correct procedure
Turn off the engine, then the water
source. Disconnect the water
source from the pump inlet and
turn the water source on to remove
all air from the hose. When there is
a steady stream of water present,
turn water source off. Re-connect
water source to pump inlet and
turn on water source. Squeeze
trigger to remove remaining air
Move choke to the "No Choke"
position
Use high pressure hose under
100 feet (30 m)
See How to Use Spray
Wand paragraph in the
Operation Section
Clean filter
Make sure end of detergent
siphon hose is fully submerged
into cleaning solution
Dilute chemical. Chemical should
be the same consistency as water
instead of high pressure hose
Please contact the original place of
purchase. Quote the MODEL and
SERIAL NUMBER
22- ENG