12
13
AIRLESS SPRAY GUN TROUBLESHOOTING
Problem
Cause
Correction
Coarse Spray, Spotty Pattern
Pressure setting low
Irratic spray gun/hand motion
Increase pressure setting
Use a steady, parallel pass
Excessive Overspray (Fogging)
Pressure setting high
Paint over thinned/reduced/cut
Reduce pressure setting
Use less thinner/water/reducer
Spray Pattern Excessively Wide
Incorrect fan width selection
Select narrower fan width tip*
Spray Pattern Excessively Narrow
Incorrect fan width selection
Select wider fan width tip*
Excessive Paint Delivery
Paint Film Runs/Sags
Large tip orifice for application
Paint over thinned/reduced/cut
Excessive pressure
Spray gun/hand speed slow
Select smaller tip orifice*
Use less thinner/water/reducer
Reduce pressure setting
Increase pass speed
Spray Pattern Rounded and Heavy:
Pump Does Not Keep Up
Tip worn beyond use
Replace with new tip*
Spray Pattern Pulsates/Irratic:
Pump Does Not Keep Up
Pump worn or malfunctioning
Service pump
Thin or Spotty Coverage (Holidays)
Small tip orifice
Spray gun/hand speed fast
Select larger tip orifice*
Decrease pass speed
Thin Coverage in Center of Pattern
(Fingers)
Tip size larger than pump specs
Low pressure setting
Pump worn or malfunctioning
Replace with correct tip for pump*
Increase pressure setting
Service pump
Spray Pattern Irregular, Deflected
Tip orifice partialy clogged
Tip damaged
Clean tip carefully
Replace with new tip*
Excess Paint Builds on Tip Guard
Spray gun excessively close to
surface
Pressure setting high
Hold gun further from surface sprayed
Reduce pressure setting
Drips, Spits From Tip
Valve seat and/or ball in gun head
damaged or worn
Service spray gun, replace valve
assembly
Tip Clogs Continually
Debris in paint
Gun filter missing
Coarse filter mesh
Thouroughly strain paint before use
Insure gun filter is in handle
Use fine mesh filter in gun handle
Gun Filter Clogs Quickly
Debris in paint
Pump inlet strainer missing
Thouroughly strain paint before use
Do not operate without intlet strainer
*See “Tip Selection Guide” in this
manual
Содержание LP 400
Страница 1: ...AIRLESSCO LP400 ALLPRO 410E AIRLESS PAINT SPRAYER SERVICE OPERATION MANUAL Form No 001 700 APR07...
Страница 24: ...22 Packing Replacement Procedures Continued FIGURE 16 FIGURE 15...
Страница 30: ...28 NOTES...
Страница 31: ...29 NOTES...