Troubleshooting - Homeright FINISH MAX PRO Instruction Manual

PROBLEM
Sags or runs
Dry spray
Striped or uneven coverage
Spitting or spraying lumps
Weak or no spray
Top-or bottom-heavy pattern or
heavy right or left side pattern
Fluttering spray
Paint leaking from guide nut
Paint leaking from front
of gun.

TROUBLESHOOTING

CAUSE
A. Too much paint.
B. Gun moving too slowly.
C. Paint too thin.
D. Gun held at incorrect angle or too close to
painting surface.
E. Spray overlaps too much.
A. Insufficient paint coming from the spray gun.
B. Gun held too far from surface.
C. Overspray from a preceding section when gun
is not held at right angle to painting surface.
D. Spray patterns not well overlapped.
A. Gun tilted or not held at right angle to painting
surface.
B. Dirt or burrs on air-cap or paint tip cause heavy
top and bottom pattern.
C. Spray patterns not well overlapped.
A. Solid particles in paint.
B. Loose pick up tube.
A. Low volume of paint from container due to
blocked air passageway in spray gun body.
B. Paint not thin enough.
C. Lid gasket missing/dirty.
A. Horn holes partially blocked.
B. Obstruction on paint tip or dirt on air cap seat
or paint tip seat.
A. Lack of paint.
B. Blocked paint passages.
C. Damaged paint nozzle or needle.
C. Lid gasket missing/dirty.
A. Loose guide nut.
B. Worn guide washer.
Needle not seated properly due to:
A. Worn or damaged paint nozzle.
B. Dirt or dried paint in nozzle.
C. Guide washer too tight preventing needle
from seating.
D. Broken spring.
E. Scored or damaged needle.
FINISH MAX PRO FINE FINISH SPRAYER
REMEDY
A. Turn paint control knob counterclockwise.
B. Move gun faster.
C. Add unthinned paint to achieve correct time
through viscosity test cup.
D. Hold gun at right angle to the painting surface at a
distance of 4-10 inches.
E. Overlap spray by approximately 1/3 width of spray
pattern.
A. Turn paint control knob clockwise.
B. Hold gun at a distance of 4-10 inches or closer for
small objects.
C. Hold gun at right angle to the painting surface.
D. Overlap spray by approximately 1/3 width of spray
pattern.
A. Hold the gun at right angle to painting surface.
B. Clean or replace air-cap or paint tip.
C. Overlap spray by approximately 1/3 width of
spray pattern.
A. Strain paint.
B. Ensure pick up tube is firmly pushed into place.
A. Clean passageway (3 mm vent holes in the
container lid).
B. Add the appropriate amount of solvent to the
paint. Add only a small amount of solvent to the
paint at one time.
C. Replace/clean lid washer.
A. Determine if obstruction is on air cap or paint
tip by making a test pattern, rotating air cap half
turn, and spraying another test pattern. If defect is
inverted, obstruction is on air cap.
B. Clean air cap with non-metallic instrument. If
obstruction is on paint tip, check for fine burring
which can be removed with 600 wet or dry
sandpaper. For dried paint inside, open and wash.
A. Refill container.
B. Clean.
C. Clean needle set or replace if necessary.
D. Clean/replace lid washer.
A. Tighten guide nut.
B. Replace guide washer.
A. Replace nozzle.
B. Clean nozzle.
C. Loosen guide washer.
D. Replace spring.
E. Replace needle.
(C800850)
10
ENGLISH