Graco HVLP EDGE II/EDGE II Plus Gun Use and care manual

3A4980B
EN
Operation/Repair/Parts
HVLP EDGE II™/EDGE II Plus Gun
For the application of architectural paints and coatings. The HVLP Edge II Gun is not
intended to be used on an external compressor. For professional use only.
Models: 17P481, 17P483, 17P484, 17P653, 17P654
10 psi (0.07 MPa, 0.7 bar) Maximum Air Working Pressure
50 psi (0.35 MPa, 3.5 bar) Maximum Fluid Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual and your sprayer instruction
manual. Be familiar with the controls and the proper usage of the equipment.
Save these instructions.
Related Manuals:
3A4967 Graco FinishPro
HVLP Sprayer
ti30935a
www.graco.com/techsupport
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Troubleshooting
24 3A4980B
Troubleshooting
Problem Cause Solution
Orange peel finish - Paint
surface not smooth
Paint droplets too large •Adjust fluid control knob on
gun to reduce fluid.
•Spray further from work
piece.
•Keep turbine air filters clean
to allow full air flow.
•Do not use an air hose that is
too long to provide sufficient
atomization pressure.
Paint droplets drying too fast to
properly flow out of gun
Keep object being sprayed out of
direct sunlight. When spraying in
warmer temperatures, use a slower
evaporating solvent or a reducer.
Cold weather spraying Keep fluid and object being sprayed
as close to room temperature as
possible. When spraying on a cold
surface, most paints will become too
thick to flow properly.
Blushing - clear coatings
appear milky
Moisture condensation is
trapped in lacquer when spraying
in hot, humid conditions
•Allow turbine to warm up a
few minutes before spraying.
•Store lacquer off concrete
floors, at room temperature.
•Apply lighter coats and allow
for proper drying time.
•Use a slower evaporating
solvent or reducer.
•Do not spray in windy
conditions.
Fish eyes - small pools on
painted surface that will not
fill
Silicone contamination from
lubricants, grease, polish, or
waxes on the surface being
sprayed
Clean all parts with a cleaning
solvent; wipe with a solvent rag and a
clean rag. Replace rags as needed. If
problem persists, use a fish eye
eliminator.
Runs and sags Applying too much paint per pass
for the drying conditions •Move gun faster or decrease
fluid flow.
•Spray further from work
piece.
•Reduce amount of thinner or
use a faster drying thinner.

Troubleshooting
3A4980B 25
Solvent pops or bubbles Sprayed surface drying before
solvent gas can be released •Apply fluid in lighter coats to
allow for proper evaporation.
•Use the recommended
thinners.
•Follow the solutions for
Orange Peel Finish, Paint
Droplets Too Large in this
Troubleshooting Table.
No or slow fluid flow,
intermittent spray, or
fluttering spray
No material Check cup for material, see Startup,
page 12.
Trigger pin in UNLOCK position Check trigger pin location. Must be in
SPRAY position.
Wrong size fluid set being used Select proper fluid set for fluid being
sprayed. Reference Fluid Set
Selection, page 9.
Gun fluid nozzle blocked by dried
paint or damaged
Clean or replace fluid nozzle
No cup pressurization Tighten cover or replace gasket
(siphon cup only)
Check for leaks in FlexLiner System.
See “FlexLiner System” section,
page 27.
Cup fitting or siphon tube (in
siphon cup) blocked by dried
paint or is damaged
Clean cup fitting, material strainer
and siphon tube (if applicable)
Check for obstructions in gun tubing.
Clean or replace gun tubing if
necessary.
Air flow to cup blocked Siphon cup: Remove cup (leave
cover connected). Trigger gun and
check air flow out of check valve. If air
is not flowing freely, clean or replace
check valve.
Fluid in the check valve (siphon
cup only)
Clean check valve. Reference
Cleaning Quick Clean Check Valve
(Siphon Cup only), page 22.
Plugged material strainer Replace material strainer if plugged
or remove if material is highly
viscous.
Needle packings not properly
adjusted.
Note: Fluid loss through
packings affects fluid pressure
and causes a fluid leak from gun
body.
Clean gun body with solvent and
brush provided. Adjust needle
packing.
Fluid leaks at fluid nozzle
after trigger is released
Needle not seating in fluid nozzle Check for a loose fluid nozzle or a
bent nozzle or needle; tighten nozzle
or replace parts as needed.
Packing nut is too tight Loosen packing nut slowly until
needle returns freely.
Poor spray pattern Air cap horn hole and/or fluid
nozzle plugged
Soak air cap and/or fluid nozzle in
solvent. Clean air cap horn holes with
non-metallic item to avoid
permanently damaging them.
Problem Cause Solution

Troubleshooting
26 3A4980B
Fluid leaks at packing nut Packing nut is loose Tighten packing nut slightly and
re-test. Repeat until packing seals
completely.
Needle does not return after
trigger is released or is slow
to return
Packing nut is too tight Loosen packing nut slowly until
needle returns freely.
Sprayer does not
automatically shut-off while
in SmartStart setting (Graco
Finish HVLP ProContractor
and ProComp models only)
Leaking air hose connections Verify air hose and attached
components are those shipped with
the sprayer.
Disconnect air hoses. Verify o-ring is
present inside connection fitting at
turbine end of hose. If using a whip
hose, verify gasket is present inside
connection fitting. Securely connect
all hose connections.
Replace with Graco HVLP
accessories, if necessary. See
separate sprayer manual 3A4967.
Gun leaking air Verify use of Edge II Plus gun.
If SmartStart functions when air valve
at end of hose is closed, clean gun.
See Cleaning HVLP Edge II Gun,
page 22.
Verify fluid valve is tight. See page 31
(ref. 16).
Replace fluid valve o-ring. See page
31 (ref. 18).
Replace air valve. See page 31 (ref.
12).
Problem Cause Solution

Troubleshooting
3A4980B 27
FlexLiner System:
FlexLiner does not collapse
or collapses slowly
Dirty sealing surfaces Remove ring, clean sealing surfaces,
securely install ring. See Fill
FlexLiner System, page 12.
Incorrect or no air cap installed
on gun
Verify Edge II air cap is installed.
Air cap is loose Edge II: Verify retaining ring is fully
installed.
Edge II Plus: Verify retaining ring is
installed to a position that does not
result in a loose air cap.
Air Control/Artisan Valve (if
installed) is set too low for
desired application
Rotate control clockwise to increase
air flow, until the desired flow is
achieved.
Gun tubing Verify gun tubing is properly
connected between the cup and gun.
Verify gun tubing is not kinked.
Air leaking from cup Damaged tubing. Remove damaged
section of tubing. Replace tubing as
necessary. See separate HVLP
Edge II gun manual.
Damaged connection between cup
and air fitting. Verify fitting is fully
installed. If necessary, replace
FlexLiner System. See separate
HVLP Edge II gun manual.
Fluid leaking between cup
and ring
Cup filled too full Verify cup is not filled above “MAX
FILL” line.
Dirty sealing surfaces Remove ring, clean sealing surfaces,
securely install ring. See Fill
FlexLiner System, page 12.
Fluid leaking between cup
and gun
Loose cup connection Tighten connection. Use wrench as
needed.
Damaged o-ring on cup
connection
Replace o-ring. Apply grease to
o-ring to aid in assembly.
Fluid present at bottom of cup FlexLiner not installed Install FlexLiner.
Damaged FlexLiner Replace FlexLiner.
Pulsing spray pattern Air not fully evacuated from
FlexLiner System.
See step 7 of Startup, page 12.
Problem Cause Solution

Parts
28 3A4980B
Parts
EDGE II
10
1
212
19
16
32
17
14
13
23
24
25
11
7
3
8
8a
8b
8c
8d
41 15
44a
44
44b
9
ti30995a
Ref. Torque
60-80 in-lb (6.8 - 9.0 N•m)
140-150 in-lb (15.8 - 16.9 N•m)
20-30 in-lb (2.3 - 3.4 N•m)
Apply adhesive, Ref. 50
1
2
3
4
1
3
4
2
1
4
2

Parts List - EDGE II
3A4980B 29
Parts List - EDGE II
Ref Part Description Qty
1 256858 BODY, gun 1
2 188493 PACKING, u-cup,
gun
1
3 17P715 HOUSING, nozzle 1
7 192348 NUT, head 1
8 256960 KIT, packing
(includes 8a, 8b, 8c,
8d)
1
8a SPREADER, u-cup 1
8b PACKING, u-cup 1
8c SPACER, packing 1
8d NUT, head 1
9 17P709 HOUSING, air, cap 1
10 17P492 RING, retaining, cap,
air
1
11 15V856 NUT, valve 1
12 257087 VALVE, air (includes
2, 11)
1
13 15V846 TRIGGER 1
14 280545 PIN, slide, trigger,
w/ball
1
15 15V848 NUT, slide, trigger,
pin
1
16 17S237 VALVE, fluid
(includes 17)
1
17 17S201 LABEL, fluid/air 1
19 114069 SPRING, compres-
sion
1
23 196463 TUBE, handle 1
24 277950 HANDLE, gun 1
25 17R207 COUPLER, male 1
32 15V844 HOUSING, plug, fluid 1
41 M70394 STEM, air pressure 1
44 FLUID SET; See
Fluid Set Selection
Guide, page 9.
44a NOZZLE, fluid 1
44b NEEDLE 1
50 113500 ADHESIVE
Ref Part Description Qty

Parts
30 3A4980B
Parts
EDGE II Plus
10
1
212
19
18
16
32
17
14
13
23
24
26
26
25
11
7
3
8a
8
41
8b
8c
8d
15
44a
44b
44 4
5
9
ti30996a
ref 49
Ref. Torque
60-80 in-lb (6.8 - 9.0 N•m)
140-150 in-lb (15.8 - 16.9 N•m)
20-30 in-lb (2.3 - 3.4 N•m)
Apply adhesive, Ref. 50
1
2
3
4
1
3
4
2
1
4
2

Parts List - EDGE II Plus
3A4980B 31
Parts List - EDGE II Plus
Ref Part Description Qty
1 17H061 BODY, gun 1
2 188493 PACKING, u-cup,
gun
1
3 17P716 HOUSING, nozzle 1
4 17P563 GUIDE, air cap,
assembly
1
5 17H063 SPRING, air cap 1
7 192348 NUT, head 1
8 256960 KIT, packing
(includes 8a, 8b, 8c,
8d)
1
8a SPREADER, u-cup 1
8b PACKING, u-cup 1
8c SPACER, packing 1
8d NUT, head 1
9 17P709 HOUSING, air, cap 1
10 17P493 RING, retaining, cap,
air
1
11 15V856 NUT, valve 1
12 17P717 VALVE, air (includes
2, 11)
1
13 15V846 TRIGGER 1
14 280545 PIN, slide, trigger,
w/ball
1
15 15V848 NUT, slide, trigger,
pin
1
16 17P718 VALVE, fluid
(includes 17, 18)
1
17 17S202 LABEL, fluid 1
18 110073 O-RING 1
19 114069 SPRING, compres-
sion
1
23 196463 TUBE, handle 1
24 277950 HANDLE, gun 1
25 17R207 COUPLER, male 1
26 17P879 GASKET, handle 2
32 17S192 CONTROL, air 1
41 M70394 STEM, air pressure 1
44 FLUID SET; See
Fluid Set Selection
Guide, page 9.
44a NOZZLE, fluid 1
44b NEEDLE 1
49 257099 SCREW, set, sch
(model 17P654)
1
50 113500 ADHESIVE
Ref Part Description Qty

Parts
32 3A4980B
Parts
FlexLiner System & Siphon Cup Assembly
ti30998a
39
40
40
37
34 22b
22a
22
29d
29a
29b
29c
29d
29
42
42a
33
36
21
35
38b
38
38a
38c
FLEXLINER SYSTEM SIPHON CUP ASSEMBLY