17- ENG
PROBLEM
CAUSE
CORRECTION
No or low
pressure
INITIALUSE
Air in hose.
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
Choke in the “Choke” position. Move choke to the “No Choke”
position.
(IGHPRESSUREHOSEISTOO
long.
Use high pressure hose under
FEETM
Will not draw
chemicals
Spray wand not in low pres-
sure.
3EE(OWTO
Use Spray Wand
paragraph in the
Operation
Section.
Chemical filter clogged.
Clean filter.
Chemical screen not in clean-
ing solution.
Make sure end of chemical
hose is fully submerged into
cleaning solution.
Chemical too thick.
Dilute chemical. Chemical
should be the same consistency
as water.
Pressure hose is too long
Lengthen water supply hose
instead of high pressure hose.
Chemical build up in chemical
injector.
(AVEPARTSCLEANEDORREPLACED
by AWSC.
No or low
pressure
AFTERPERIODOF
NORMALUSE
Worn seal or packing
(AVEPARTSCLEANEDORREPLACED
by AWSC.
Worn or obstructed valves.
(AVEPARTSCLEANEDORREPLACED
by AWSC.
Worn unloader piston.
(AVEPARTSCLEANEDORREPLACED
by AWSC.
Water leaking
at gun/spray
wand connec-
tion
Worn or broken o-ring.
Check and replace.
Loose hose connection.
Tighten.
Water leaking
at pump
Loose connections.
Tighten.
Piston packings worn.
(AVEPARTSCLEANEDORREPLACED
by AWSC.
Worn or broken o-rings.
(AVEPARTSCLEANEDORREPLACED
by AWSC.
Pump head or tubes damaged
from freezing.
(AVEPARTSCLEANEDORREPLACED
by AWSC.
Pump Pulsates Nozzle obstructed.
See
Nozzle Cleaning
para-
graph in the
Maintenance
sec-
tion for the correct procedure.
AWSC
= Authorized Warranty Service Center
