Delta D28569 Instruction Manual page 18

PROBLEM
Will not draw
chemicals
No or low
pressure
(after period of
normal use)
Water leaking at
gun/spray wand
connection
Water leaking
at pump
Oil leaking at
pump
Pump Pulsates
D28569
CAUSE
Spray wand not in low pressure.
Chemical filter clogged.
Chemical screen not in chemical
Chemical too thick.
Pressure hose is too long
Chemical build up in chemical
injector.
Worn seal or packing
Worn or obstructed valves.
Worn unloader piston.
Worn or broken o-ring.
Loose hose connection.
Loose connections.
Piston packings worn.
Worn or broken o-rings.
Pump head or tubes damaged
from freezing.
Oil seals worn.
Loose drain plug.
Worn drain plug o-ring
Worn fill plug o-ring.
Pump overfilled.
Incorrect oil used.
Vent plug is clogged.
Nozzle obstructed.
See How to Use Spray Wand
paragraph in the Operation
Section.
Clean filter.
Insure end of chemical hose is
fully submerged into chemical.
Dilute chemical. Chemical should
be the same consistency as
water.
Lengthen water supply hose
instead of high pressure hose.
Have parts cleaned or replaced
by AWSC.
Have replaced by AWSC.
Have replaced by AWSC.
Have replaced by AWSC.
Check and replace.
Tighten.
Tighten.
Have replaced by AWSC.
Have replaced by AWSC.
Have replaced by AWSC.
Have replaced by AWSC
Tighten.
Check and replace.
Check and replace.
Check for correct amount.
Drain and fill with correct amount
and type of oil.
Clean vent plug; blow air through it
to remove any blockage. If prob-
lem persists, replace plug.
See Nozzle Cleaning paragraph in
the Maintenance section for the
correct procedure.
18- ENG
CORRECTION