DeVillbiss Air Power Company A16091 Problem, Cause, Correction, Water leaking, at gun, spray wand

PROBLEM

Will not draw chemicals

CAUSE

Spray wand not in low pressure.

Chemical filter clogged.

Chemical screen not in cleaning solution.

CORRECTION

See How to Use Spray Wand paragraph in the Operation Section.

Clean filter.

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.

No or low pressure (after period of normal use)

Pressure hose is too long

Chemical build up in chemical injector.

Worn seal or packing

Worn or obstructed valves.

Worn unloader piston.

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.

Water leaking	Worn or broken o-ring.	Check and replace.
at gun/
spray wand	Loose hose connection.	Tighten.
connection

Water leaking at pump

Pump Pulsates

Loose connections.

Piston packings worn.

Worn or broken o-rings.

Pump head or tubes damaged from freezing.

Nozzle obstructed.

Tighten.

Have replaced by AWSC.

Have replaced by AWSC.

Have replaced by AWSC.

See Nozzle Cleaning paragraph in the Maintenance section for the correct procedure.

Oil leaking at pump

Oil seals worn. Loose drain plug. Worn drain plug o-ring Worn fill plug o-ring. Pump overfilled. Incorrect oil used.

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.

Vent plug is clogged.	Clean vent plug; blow air through it
	to remove any blockage. If problem
	persists, replace plug.

AWSC = Authorized Warranty Service Center

A16091 18- ENG