Troubleshooting - Craftsman 919.155310 Owner's Manual

NOTICE: See parts list to identify parts referred to in these Troubleshooting steps.
Defective Pattern
A.
B.
C. Spitting, irregular
or fluttering spray
D. Split spray pattern
E. Unatomized or
spattered spray
F. Inadequate air de-
livery
G. Excessive fog
H. Material leaking
from fluid inlet of
cup.
I. Material leaking
from nozzle when
trigger is released

TROUBLESHOOTING

Likely Cause
Dried material is clog-
ging side-port "A" and
causing side-port "B"
to blow spray towards
the clogged side
Dried material at fluid
nozzle "C" restricts air
flow
Loose air nozzle
Air pressure set too
high
Fluid nozzle cracked or worn
Leak at thread of fluid nozzle
Leak at fluid needle
Needle packing worn out
Insufficient fluid in cup
Vent hole in container cover
clogged
Air pressure too high
Material too heavy
Insufficient air pressure
Fluid pressure too high
Dried material on tip of fluid noz-
zle or air jets of air cap
Air needle partially closed
Dried material in air jets or air cap
Obstruction in air line
Air pressure to high for viscosity
of fluid
Loose cup or foreign substances
on/between cup thread and fluid
inlet
Worn fluid needle
Dried material in tip of nozzle
Loose packing nut
7- ENG
Suggested Remedy
Soak side-ports in thinner to
clean clog. DO NOT poke
any opening with hard
objects.
Remove air nozzle. Wipe off
fluid tip using a cloth soaked
in thinner or by soft brush
Fasten nozzle securely
Reduce air pressure
Tighten or replace
Tighten fluid nozzle
Tighten compression nut
assembly or replace needle
packing
Replace packing
Fill cup with fluid
Clean Out
Turn pattern control knob
clockwise to decrease fan
width. Turn fluid needle
adjusting nut counterclock-
wise to increase fluid flow
Thin material or use larger
orifice fluid nozzle set
Increase pressure to within
limit
Reduce pressure
Clean
Open control knob
Clean
Remove obstruction
Reduce air pressure and/or
open fluid control knob
Tighten and clean or replace
it
Replace
Clean
Tighten needle packing nut
by turning counterclockwise
D28996