PROBLEM

CAUSE

CORRECTION

 

 

 

Will not draw

Spray wand not in low pressure.

See How to Use Spray Wand

 

paragraph in the Operation

chemicals

 

 

Section.

 

 

 

Chemical filter clogged.

Clean filter.

 

 

 

 

Chemical screen not in chemical

Ensure end of chemical hose is

 

 

fully submerged into chemical.

 

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

Have parts cleaned or replaced

 

injector.

by AWSC.

 

 

 

No or low

Worn seal or packing

Have replaced by AWSC.

pressure

Worn or obstructed valves.

Have replaced by AWSC.

(after period of

 

 

Worn unloader piston.

Have replaced by AWSC.

normal use)

Water leaking at

Worn or broken o-ring.

Check and replace.

 

 

gun/spray wand

 

 

Loose hose connection.

Tighten.

connection

 

 

Water leaking

Loose connections.

Tighten.

at pump

 

 

Piston packings worn.

Have replaced by AWSC.

 

 

 

 

 

Worn or broken o-rings.

Have replaced by AWSC.

 

 

 

 

Pump head or tubes damaged

Have replaced by AWSC.

 

from freezing.

 

Oil leaking at

Oil seals worn.

Have replaced by AWSC

pump

 

 

Loose drain plug.

Tighten.

 

 

 

 

 

Worn drain plug, o-ring

Check and replace.

 

 

 

 

Worn fill plug o-ring.

Check and replace.

 

Pump overfilled.

Check for correct amount.

 

 

 

 

Incorrect oil used.

Drain and fill with correct amount

 

 

and type of oil.

 

Vent plug is clogged.

Clean vent plug; blow air through it

 

 

to remove any blockage. If prob-

 

 

lem persists, replace plug.

 

 

 

Pump Pulsates

Nozzle obstructed.

See Nozzle Cleaning paragraph in

 

 

the Maintenance section for the

 

 

correct procedure.

 

 

 

D28609

20- ENG

Page 20
Image 20
Delta D28609, D2400H instruction manual Problem Cause Correction, Chemicals