gti® high volume low pressure gravity feed spray gun

SERVICE BULLETIN
EN
Repair Kit KK-5058-2
GTI® HIGH VOLUME LOW PRESSURE
GRAVITY FEED SPRAY GUN
#2000 Millennium Air Cap
PSI / CFM Information
INLET
CAP
PRESSURE PRESSURE
at handle
fan fully
CFM
of gun
openFLOW
(PSI)
(PSI) (CFM)
8
14.5
20
24.5
30
2
4
6
8
10
7.5
10.5
12.5
14.5
15.5
INSTALLATION
For maximum transfer efficiency, do not use
more pressure than is necessary to atomize
the material being applied.
OPERATION
1.
Strain material through a 60 or 90 mesh
screen.
Connect the gun to a clean, moisture
and oil free air supply using a hose
size of at least 5/16" I.D. hose. Do not
use 1/4" I.D. hose (25' x 1/4" hose at 18
CFM has a pressure loss of 25 psi. 25'
x 5/16" hose at 18 CFM has a pressure
loss of 8 psi).
NOTE
IMPORTANT: Before using this equipment,
read all safety precautions and instructions.
Keep for future use.
DESCRIPTION
The high volume low pressure gravity
feed GTI gun is designed to apply a wide
variety of finishing materials. This gun was
manufactured to provide a maximum
transfer efficiency by limiting air cap
pressure to 10 psi (complies with rules
issued by SCAQMD and other air quality
authorities).
This gun will produce approximately 10 psi
air cap pressure at 30 psi gun inlet pressure.
An air cap test kit is available (see Accessories) which can be utilized to set the exact
air cap presssure. Air consumption for this
gun (with #2000 cap) is 15.5 scfm at 10 psi
air cap pressure.
NOTE
This gun includes 300 series stainless steel fluid tip and needle.
The fluid passageway is plated
aluminum. Guns may be used with
chlorinated solvent materials only
if the attached gravity cup is Acetal
or Nylon. Do not use aluminum
cups with chlorinated solvent
materials.
Important: This gun may be used with most
common coating and finishing materials. It
is designed for use with mildly corrosive and
non-abrasive materials. If used with other
high corrosive or abrasive materials, it must
be expected that frequent and thorough
cleaning will be required and the necessity
for replacement of parts will be increased.
SB-2-168-P (8/2015)
Depending on hose length, larger
I.D. hose may be required. Install an
HAV-511 air gauge at the gun handle
and air cap test kit over tip. When
gun is triggered on, adjust regulated
pressure to desired setting to provide
a maximum of 10 psi at the air cap.
Do not use more pressure than is
necessary to atomize the material
being applied. Excess pressure will
create additional overspray and
reduce transfer efficiency.
NOTE
If quick connects are required, use
only high flow quick connects approved for HVLP use such as DeVilbiss HC-4419 and HC-4719. Other
types will not flow enough air for
proper gun operation.
NOTE
If an air adjusting valve is used at the
gun inlet, use DeVilbiss Model HAV500 or HAV-511. Some competitive
adjusting valves have significant
pressure drop that can adversely
affect spray performance. Models
HAV-500 and HAV-511 have minimal
pressure drop, which is important for
HVLP spraying.
2. Attach the gravity feed cup to the
material inlet.
NOTE
Protective coating and rust inhibitors have been used to keep the
gun in good condition prior to
shipment. Before using the gun,
flush it with solvents so that these
materials will be removed from
fluid passages.
1/8
Mix, prepare and strain the material to be
sprayed according to the paint maufacturer's
instructions.
1.
Fill the gravity feed cup with the material. Do not overfill. Make sure that the
cup lid vent hole is clear.
2. Open the spreader adjustment valve
(10) (Fan) by turning the valve stem
counterclockwise.
3. Close the fluid needle adjusting screw
(17) by turning clockwise.
4. Turn on air supply and set gun inlet
pressure to lowest recommended pressure for material being sprayed. Best
atomization will occur with 10 psig air
cap pressure. However, some materials can be sprayed at lower pressures,
improving transfer efficiency.
5. Spray a test area by turning fluid needle
adjusting screw (17) counterclockwise
until a full coat is obtained.
If the finish is too sandy and dry, the material
flow may be too low for the atomization air
pressure being used.
If the finish sags, there is too much material flowing for the atomization air pressure
being used.
Both of the above can be corrected by
increasing or decreasing the atomization
air pressure or the material flow. Pattern
width can be altered by turning spreader
adjustment valve (10), either clockwise to
decrease the width or counterclockwise to
increase the width.
See Spray Gun Guide, SB-2-001 latest
revision, for details concerning setup of
spray guns.
PREVENTIVE MAINTENANCE
To clean air cap and fluid tip, brush exterior
with a stiff bristle brush. If necessary to clean
cap holes, use a broom straw or toothpick
if possible. If a wire or hard instrument is
used, extreme care must be used to prevent
scratching or burring of the holes which will
cause a distorted spray pattern.
(Continued on page 3)
EN
SAFETY PRECAUTIONS
This manual contains information that is important for you to know and understand. This information relates to USER SAFETY and
PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the following symbols. Please pay particular
attention to these sections.
NOTE
Important safety information - A hazard
that may cause serious injury or loss of life.
Important information that tells how to
prevent damage to equipment, or how
to avoid a situation that may cause
minor injury.
Information that you should pay special
attention to.
The following hazards may occur during the normal use of this equipment.
Please read the following chart before using this equipment.
HAZARDCAUSE
SAFEGUARDS
Fire
Adequate exhaust must be provided to keep air free of
accumulations of flammable vapors.
Solvent and coatings can be highly
flammable or combustible especially when
sprayed.
Smoking must never be allowed in the spray area.
Fire extinguishing equipment must be present in the spray area.
Solvent Spray
During use and while cleaning and flushing,
solvents can be forcefully expelled from
fluid and air passages. Some solvents can
cause eye injury.
Wear eye protection.
Inhaling Toxic Substances
Certain materials may be harmful if inhaled,
or if there is contact with the skin.
Follow the requirements of the Material Safety Data Sheet
supplied by your coating material manufacturer.
Adequate exhaust must be provided to keep the air free of
accumulations of toxic materials.
Use a mask or respirator whenever there is a chance of inhaling
sprayed materials. The mask must be compatible with the material
being sprayed and its concentration. Equipment must be as
prescribed by an industrial hygienist or safety expert, and be
NIOSH approved.
Explosion Hazard Incompatible Materials
Halogenated hydrocarbon solvents - for
example; methylene chloride and 1,1,1,
- Trichloroethane are not chemically
compatible with the aluminum that might
be used in many system components. The
chemical reaction caused by these solvents
reacting with aluminum can become violent
and lead to an equipment explosion.
Guns with stainless steel internal passageways may be used with
these solvents. However, aluminum is widely used in other spray
application equipment - such as material pumps, regulators,
valves, and cups. Check all equipment items before use and make
sure they can also be used safely with these solvents. Read the
label or data sheet for the material you intend to spray. If in doubt
as to whether or not a coating or cleaning material is compatible,
contact your material supplier.
General Safety
Improper operation or maintenance of
equipment.
Operators should be given adequate training in the safe use
and maintenance of the equipment (in accordance with the
requirements of NFPA-33, Chapter 15). Users must comply with
all local and national codes of practice and insurance company
requirements governing ventilation, fire precautions, operation,
maintenance, and housekeeping. These are OSHA Sections
1910.94 and 1910.107 and NFPA-33.
Cumulative Trauma
Disorders ("CTD's")
Use of hand tools may cause cumulative
trauma disorders ("CTD's").
Pain, tingling, or numbness in the shoulder, forearm, wrist,
hands, or fingers, especially during the night, may be early
symptoms of a CTD. Do not ignore them. Should you experience
any such symptoms, see a physician immediately. Other early
symptoms may include vague discomfort in the hand, loss of
manual dexterity, and nonspecific pain in the arm. Ignoring early
symptoms and continued repetitive use of the arm, wrist, and
hand can lead to serious disability. Risk is reduced by avoiding or
lessening factors 1-7.
CTD's, or musculoskeletal
disorders, involve damage
to the hands, wrists,
elbows, shoulders, neck,
and back. Carpal tunnel
syndrome and tendonitis
(such as tennis elbow or
rotator cuff syndrome) are
examples of CTD's.
CTD's, when using hand tools, tend to affect
the upper extremities. Factors which may
increase the risk of developing a CTD include:
1. High frequency of the activity.
2. Excessive force, such as gripping,
pinching, or pressing with the hands and
fingers.
3. Extreme or awkward finger, wrist, or arm
positions.
4. Excessive duration of the activity.
5. Tool vibration.
6. Repeated pressure on a body part.
7. Working in cold temperatures.
CTD's can also be caused by such activities
as sewing, golf, tennis, and bowling, to
name a few.
2/8
CA PROP
65
PROP 65 WARNING
WARNING: This product
contains chemicals known to
the State of California to cause
cancer and birth defects or
other reproductive harm.
SB-2-168-P (8/2015)
EN
To clean fluid passages, remove excess
material from cup, then flush with a suitable solvent. Wipe gun exterior with a
solvent dampened cloth. Never completely
immerse in solvent as this is detrimental to
the lubricants and packings.
PARTS REPLACEMENT
Figure 1 Air Cap
Chart 1
Air Cap No.
No. 2000
NOTE
When replacing the fluid tip or
fluid needle, replace both at the
same time. Using worn parts can
cause fluid leakage. See Chart 1.
Also, replace the needle packing
at this time. Lightly lubricate the
threads of the fluid tip before reassembling. Torque to 15-20 ft. lbs.
Do not overtighten the fluid tip.
To prevent damage to fluid tip
(5) or fluid needle (11), be sure to
either 1) pull the trigger and hold
while tightening or loosening
the fluid tip, or 2) remove fluid
needle adjusting screw (17) to
relieve spring pressure against
needle collar.
HVLP: 30 PSI
MAX. INLET
Air cap covered by U.S.A. Patent
No. 6,293,476.
JGA-4035 Packing Replacement Instructions
1. Remove Fluid Tip (5).
2. Remove Baffle (6).
3. Remove Seal (7) from baffle.
NOTE
The seal is designed to be a tight
fit on the baffle. The seal should
be able to be removed using your
fingers. If you are unable to remove
the seal using your fingers, insert
a small screwdriver between the
outer lip and the back of the baffle
and pry the seal off.
ANGLED SIDE
SEAL
Needle
Daily, apply a drop of spray gun lube at
trigger bearing stud (28) and the stem
of air valve (20) where it enters air valve
assembly. The shank of fluid needle (11)
where it enters packing nut (9) should also
be oiled. Fluid needle packing (8) should be
lubricated periodically. Make sure baffle (6)
and retaining ring (3) threads are clean and
free of foreign matter. Before assembling
retaining ring to baffle, clean the threads
thoroughly, then add two drops of spray
gun lube to threads. Fluid needle spring (14)
and air valve spring (19) should be coated
with a very light grease, making sure that
any excess grease will not clog the air passages. For best results, lubricate the points
indicated, daily.
A. Trigger Points
B.Packing
C. Adjusting Knobs
D. Baffle Threads
E. Air Valve Cartridge
C
D
E
B
SB-2-168-P (8/2015)
GTI-33 Baffle Seal Replacement
Maximum air pressure required to
assure compliance of 10 PSI Max.
Cap Pressure - this reading must
be taken at the spray gun handle
inlet fitting.
SPRAY GUN LUBRICATION
A
Fluid
Tip Size I.D.
Tip No.
In.
mm
GTI-213-120.047 1.2
GTI-213-130.051 1.3
GTI-213-140.055 1.4
GTI-213-150.059 1.5
GTI-213-160.063 1.6
GTI-213-180.070 1.8
Gun Body
Packing
(3 pieces)
Packing
Nut
1. Remove adjusting knob and needle
spring from gun.
2. Partially withdraw needle from gun
body.
3. Loosen packing nut and remove.
4. Remove old packing.
5. Assemble packing nut to needle
6. Assemble packing in order shown to
needle.
7. Insert needle all the way into gun body
seating in tip.
8. Install needle spring and adjusting knob.
9. Thread packing nut into gun body.
10. Tighten packing nut in equal increments
– no more than 1/6 turn at a time.
11. After each adjustment, pull needle open
and observe needle closure.
12. If needle snaps shut, continue adjusting
nut until there is evidence of needle
bind or slow closing.
13. Back off packing nut 1/12 turn to
the point where needle snaps shut.
Packing nut must remain tight enough
to prevent loosening by hand.
14. Pull needle several times to verify
needle snaps shut and check packing
nut for looseness.
3/8
THICK SIDE
Pry here if
necessary
BAFFLE
4. Assemble seal to baffle with angled side
up as shown above. NOTE: The seal
should be a tight fit on the baffle. If it is
a loose fit on the baffle, assure that it is
assembled with the angled side up.
5. Install baffle on gun.
6.Install fluid tip (5) and tighten to
15-20 ft-lbs.
EN
18
14
12
17
16
15
13
10
11
32
33 34 35
36
6
7
5
4
*26 Air Inlet Nipple
1/4" NPS(M)
(Torque to 15 ft.lbs.)
2
1
3
Fluid Tip
(Torque to
15-20 ft.lbs.)
20
19
8
9
Use medium strength thread
sealant (i.e. Devcon #2242 Blue,
or equal) on threads
24 23
30
25
PARTS LIST
Ind.
Ref. Replacement
Parts
No. Part No.
Description
Req.
1 ---
2 JGA-156-K10
3 GTI-3
4 GTI-407-2000
5 See Chart 1
6 GTI-425
•7 GTI-33-K5
•8 JGA-4035-K5
9 34411-122-K10
10 GTI-404
11 GTI-413
•12 JGS-72-K10
13 ---
•14 ---
•15 ---
16 MBD-19-K10
17 GTI-414
18 KK-5059
•19 ---
Air Cap
Spring Clip (Kit of 10)
Air Cap Retaining Ring
Air Cap & Retaining Ring
Fluid Tip
Baffle Assembly
Baffle Seal (Kit of 5)
Packing (Kit of 5)
Packing Nut
Spreader Valve
Fluid Needle
Gasket Kit (PTFE)
(Kit of 10)
Body Bushing
Fluid Needle Spring
Spring Pad
Spring and Pad
(Kit of 10)
Needle Adjusting Screw
Bushing, Spring, Pad
and Knob Kit
Air Valve Spring
31
27
21
22
29
28
12
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
Ind.
Ref. Replacement
Parts
No. Part No.
Description
Req.
•20 ---
21 ---
•22 ---
•23 ---
•24 ---
25 JGS-449-1
26 P-MB-51
27 ---
28 ---
29 JGS-478
30 ---
31 JGS-477-1
•32 KGP-13-K5
•33 ---
•34 ---
•35 ---
36 GTI-428-K5
Air Valve
Air Valve Body
U-Cup Seal
Washer
Snap Ring
Air Valve Assembly
Air Inlet Nipple
1/4" NPS(M)
Trigger Stud Screw
Trigger Stud
Stud and Screw Kit
Trigger
Trigger, Stud, Screw Kit
Cup Gasket (Blue) (Kit of 5)
Retaining Clip
Seal
Pin
Clip, Seal & Pin Kit (5 each)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
• KK-5058-2 Gun Repair Kit includes a quantity of necessary parts.
Sufixes -K5, -K10 designate kits of multiple parts.
Example: JGA-4035-K5 is a kit of 5 packings.
4/8
SB-2-168-P (8/2015)
EN
TROUBLESHOOTING
CONDITION
Heavy top or
bottom pattern
Heavy right or left
side pattern
CAUSE
CORRECTION
Horn holes plugged.
Obstruction on top or bottom of fluid tip.
Cap and/or tip seat dirty.
Clean. Ream with non-metallic point.
Clean.
Left or right side horn holes plugged.
Dirt on left or right side of fluid tip.
Clean. Ream with non-metallic point.
Clean.
Clean.
Remedies for the top-heavy, bottom-heavy, right-heavy, and left-heavy patterns:
1. Determine if the obstruction is on the air cap or the fluid tip. Do this by making a test
spray pattern. Then, rotate the cap one-half turn and spray another pattern. If the defect
is inverted, obstruction is on the air cap. Clean the air cap as previously instructed.
2. If the defect is not inverted, it is on the fluid tip. Check for a fine burr on the edge of the
fluid tip. Remove with #600 wet or dry sand paper.
3. Check for dried paint just inside the opening; remove by washing with solvent.
Heavy center pattern
Fluid flow too high for atomization air.
Material flow exceeds air cap's capacity.
Spreader adjustment valve set too low.
Atomizing pressure too low.
Material too thick.
Spreader adjusting valve set too high.
Reduce at transformer or gun.
Increase fluid flow (increases gun handling
speed).
Adjust.
Jerky or fluttering spray
*Loose or damaged fluid tip/seat.
Baffle seal installed incorrectly.
Material level too low.
Container tipped too far.
Obstruction in fluid passage.
Dry or loose fluid needle packing nut.
Tighten or replace.
Install per directions.
Refill.
Hold more upright.
Backflush with solvent.
Lubricate or tighten.
Unable to get round spray
Spreader adjustment screw not seating
properly.
Air cap retaining ring loose.
Clean or replace.
No air pressure at gun.
Check air supply and air lines, blow out gun
air passages.
Open fluid needle adjusting screw.
Split spray pattern
Will not spray
Atomization air pressure too high.
Fluid flow too low.
Balance air pressure and fluid flow. Increase
spray pattern width with spreader adjustment
valve.
Thin or lower fluid flow.
Adjust.
Increase pressure.
Thin to proper consistency.
Fluid needle adjusting screw not open
enough.
Fluid too heavy for gravity feed.
Tighten.
Thin material and/or change to larger tip size.
Paint bubbles in cup
Fluid tip not tight.
Tighten tip to 15-20 ft-lbs.
Fluid leaking or dripping from
cup lid
Cup lid loose.
Dirty threads on cup or lid.
Cracked cup or lid.
Push in or tighten lid.
Clean.
Replace cup and lid.
Starved spray pattern
Inadequate material flow.
Low atomization air pressure.
Back fluid adjusting screw out to first thread,
or change to larger tip size.
Increase air pressure and rebalance gun.
Excessive overspray
Too much atomization air pressure.
Gun too far from work surface.
Improper stroking (arcing, gun motion too
fast).
Reduce pressure.
Adjust to proper distance.
Move at moderate pace, parallel to work
surface.
Excessive fog
Too much or too fast-drying thinner.
Too much atomization air pressure.
Remix properly.
Reduce pressure.
Dry spray
Air pressure too high.
Gun tip too far from work surface.
Gun motion too fast.
Gun out of adjustment.
Reduce air pressure.
Adjust to proper distance.
Slow down.
Adjust.
Fluid leaking from packing nut
Packing nut loose.
Packing worn or dry.
Tighten, do not bind needle.
Replace or lubricate.
Fluid leaking or dripping from
front of gun
Packing nut too tight.
Dry packing.
Fluid tip or needle worn or damaged.
Foreign matter in tip.
Fluid needle spring broken.
Wrong size needle or tip.
Adjust.
Lubricate.
Replace tip and needle.
Clean.
Replace.
Replace.
*Most common problem.
SB-2-168-P (8/2015)
5/8
EN
TROUBLESHOOTING (continued)
CONDITION
CAUSE
CORRECTION
Fluid dripping or leaking from
bottom of cup
Cup loose on gun.
Cup gasket worn or missing below cup.
Cup threads dirty.
Tighten.
Replace cup gasket.
Clean.
Runs and sags
Too much material flow.
Material too thin.
Gun tilted on an angle, or gun
motion too slow.
Adjust gun or reduce fluid flow.
Mix properly or apply light coats.
Hold gun at right angle to work and
adapt to proper gun technique.
Thin, sandy coarse finish drying
before it flows out
Gun too far from surface.
Too much air pressure.
Improper thinner being used.
Check distance. Normally approx. 8".
Reduce air pressure and check spray pattern.
Follow paint manufacturer's mixing instrs.
Thick, dimpled finish "orange peel"
Gun too close to surface.
Check distance. Normally approx. 8".
Too much material coarsely atomized.
Increase air pressure or reduce fluid flow.
Follow paint manufacturer's mixing instrs.
Follow paint manufacturer's mixing instrs.
Properly clean and prepare.
Air pressure too low.
Improper thinner being used.
Material not properly mixed.
Surface rough, oily, dirty.
6/8
SB-2-168-P (8/2015)
EN
ACCESSORIES
GFC-501 (Acetal) 20 oz.
702576 (Aluminum) 900 cc
Gravity Feed Cups
HAV-500 OR
HAV-511
Adjusting Valve
(HAV-511 SHOWN)
These gravity feed cups are
designed to be used with FLG,
GFG, GFHV or GTI gravity feed
spray guns.
GTI-5033-2000
Air Cap Test Kit
Contains six precision tools designed
to effectively clean
all DeVilbiss, Binks,
Finishline and other
brand spray guns.
HAV-500 does not
have pressure gauge.
Use to control air
usage at gun.
The purpose of this test
kit is to measure air cap
atomizing air pressure at
the center air port of the air
cap. Used to confirm code
compliance and as a daily
quality control measure.
JGA-156-K10
Spring Clips
192218 Scrubs®
Hand Cleaner Towels
Joins any single
piece DeVilbiss
air cap with latest
version MBC-368,
MSA-1 or GTI3 retaining rings.
Helps prevent parts
loss and provides
easier assembly.
Scrubs® are a premoistened hand cleaner
towel for painters, body
men and mechanics that
go where you go and no
water is needed.
192212 Professional
Spray Gun
Cleaning Kit
40-128
Twin Cartridge,
Paint Spray
Respirator
GH-505 Gun
Holder
192219
Gun Holder
Spray Gun Lube
803888 (2 oz. bottle)
Automotive Refinish Quick Connects
For HVLP Guns (Air)
High Flow Type.
HC-4419 Stem
1/4" NPT(F)
HC-4719 Coupler
1/4" NPT(M) /NPS(M)
HC-1166 Stem
1/4" NPT(M)
HC-4720 Coupler
1/4" NPT(F)
NIOSH-Certified
(TC84A-1623) for respiratory protection in atmospheres not immediately
dangerous to life.
HAF-507 Whirlwind™
In-Line Air Filter
WR-103 Wrench
Contains all necessary
tip, hose and nut sizes
used on or with gun.
SB-2-168-P (8/2015)
Removes water, oil,
and debris from the
air line.
7/8
Gun holders are
made to hold standard paint cups, gravity feed guns and
cups, and paint filters.
Gun holder made
to hold guns with
gravity cups.
Compatible with
all paint materials; contains no
silicone or petroleum distillates to
contaminate paint.
MSDS Sheet available upon request.
OMX-70-K48 Paint Cup Liner Kit
Allows quick and
easy clean-up, and
also allows spraying
with the gun pointing upward.
Consists of :
1 - Piercing Tool
48 - Disposable Liners
48 - Drain Bushings
EN
WARRANTY POLICY
DeVilbiss products are covered by Finishing Brands one year materials and workmanship limited warranty. The use of any parts or
accessories, from a source other than Finishing Brands, will void all warranties. For specific warranty information please contact the closest
Finishing Brands location listed below.
Finishing Brands reserves the right to modify equipment specifications without prior notice. DeVilbiss ®, Ransburg®, BGK®, and
Binks® are registered trademarks of Carlisle Fluid Technologies, Inc., dba Finishing Brands. ©2015 Carlisle Fluid Technologies, Inc.,
dba Finishing Brands. All rights reserved.
DeVilbiss Automotive Refinishing is part of Finishing Brands, a global leader in innovative spray
finishing technologies. For technical assistance or to locate an authorized distributor, contact
one of our sales and customer support locations below.
USA/Canada
www.autorefinishdevilbiss.com
[email protected]
Toll Free Tel: 1-800-445-3988
Toll Free Fax: 1-800-445-6643
8/8
Mexico
www.autorefinishdevilbiss.com.mx
Toll Free Tel: 1-888-835-6232 USA
SB-2-168-P (8/2015)