Graco QuickShot 20B473 Operating instructions

For repair of QuickShot sprayers.
Maximum Working Pressure: 2000 psi (138 bar, 14MPa)
Related Manuals
Important Safety Instructions
Read all warnings and instructions in this manual, on the unit, and in the battery and
charger manual before using the equipment. Be familiar with the controls and the proper
usage of the equipment. Save these instructions.
Important Medical Information
Read the medical alert card provided with the gun. It contains injection injury treatment
information for a doctor. Keep it with you when operating the equipment.
Replacement Kits Part No.
Enclosure Cover 18H083 page 5
Pump Assembly 18H072 page 6
Prime/Spray Valve and Knob 2000079 page 7
Outlet Valve 18H075 page 8
SmartControl and Enclosure 18H076 page 9
Hose 2000354 page 10
Needle Valve 18H056 page 11
Solenoid, Pot, Trigger, Switch 18H057 page 11
Gun Housing 18H058 page 11
Complete Gun 18H059 page 11
Solvent Gasket 18H126 page 15
Manual in
English Description
3A9301 QuickShot Owners manual
DeWALT charger manual
3A9322B
EN
QuickShot™
Repair

2 3A9322B
Assembly Drawing
Torque to 18 ± 5 in-lbs
(18 ± 0.6 N·m)
Torque to 55 - 65 in-lbs
(6.2 - 7.3 N·m)
Torque to 15 - 20 in-lbs
(1.7 - 2.3 N·m)
Torque to 100 in-lbs
(11.3 N·m)
Torque to 9 - 11 in-lbs
(1.0 - 1.2 N·m)
Torque to 10 - 15 in-lbs
(1.1 - 1.7 N·m)
1
2
3
4
5
6

3A9322B 3
Assembly Drawing Parts List
Ref. Order
Part No. Description
1 18H072 Kit, pump assembly, includes 3, 4
218H073 Kit, filter, 60 mesh, 3 pack
18H074 Kit, filter, 100 mesh, 3 pack
318H075 Kit, outlet valve repair, includes 3 of 3a, 2 of 3b, 2 of 25, 1 of 26,
3 of 27, 1 of 15
3a Outlet valve assembly
3b Outlet valve plug
4 2000079 Prime/Spray valve and knob, includes 4a, 12, 1 of 21
4a Prime valve
5 19F703 O-ring
6 18H076 Kit, control, enclosure, includes 18, 28
7 18H077 Kit, lid, plug, label
8 18H078 Kit, cup, 32 oz. includes 5
10 18H079 Kit, cup, lid, plug, o-ring, label, includes 7, 8
11 18H080 Kit, plug, 3 pack
12 17M882 Prime knob
13 19F832 Screw, torx
14 119236 Screw, torx
15 2000209 Kit, hose adapter
16 246215 Guard, spray tip, FFLP
17
FFLP514 Spray tip
FFLP210 Spray tip
FFLP410 Spray tip
18 18H083 Kit, enclosure, door, includes 5 of 20
19 17P501 Kit, tip seat and seal, 5 pack
20 18H096 Screw, cross-head
21 128726 Screw, cross-head
22 2000354 Kit, hose
23 18F977 Holster
24*
Li-ion Compact Battery Pack DEWALT
17P474 20V 2.0 Ah - USA
17P557 18V 2.0 Ah - Europe/AP
17P556 18V 2.0 Ah - Japan
17P558 18V 2.0 Ah - ANZ
17Y586 18V 2.0 Ah - Korea
17M883 Case, storage (not shown)
25 17T582 O-ring
26 117724 O-ring
27 18D981 O-ring
- - - 243103 Pump Armor, 4 oz (not shown)

4 3A9322B
NOTE: Gun 18H059 and Hose 2000354 are designed for use with the QuickShot sprayer only.
Pressure Relief Procedure 1. Turn Prime Knob up to PRIME position to
relieve system pressure.
2. Hold metal tip guard nut firmly to a grounded
metal pail. Point Spray Gun into pail,
disengage Trigger Lock, and trigger the
Spray Gun to relieve system pressure.
28▲18H084 Kit, warning labels
▲
Medical alert card (not shown)
17R476 English, Spanish, Portuguese (Brazil)
17A134 English, Chinese, Korean
179960 English, Spanish, French
17F690 Dutch, German, Italian
29 18H085 Kit, ground
30 18F891 Belt
31 18F810 Adapter, belt slide
32 18H056 Kit, needle valve, includes 1 of 37
33 18H057 Kit, solenoid, pot, trigger, switch
33a Spring, gun
33b Spring, plastic, sliding
33c Slide, lock, trigger
33d Cap, trigger
33e Knob, adjustment
33f Solenoid
34 18H058 Kit, housing, gun, includes 33a, 33b, 33c, 33d, 33e
35 18H059 Kit, gun, complete, includes 13, 14, 32, 33, 34, 36
36 19F831 Screw, cross-head
37 18H126 Kit, solvent gasket (qty. 5), includes removal/installation tool
--- 18H081 Kit, label, brand, Ultra (not shown)
--- 18H082 Kit, label, brand, Ultimate (not shown)
* Battery and charger are dependent upon in country requirements.
▲ Replacement safety labels, tags, and cards are available at no cost.
Ref. Order
Part No. Description
PRESSURIZED FLUID HAZARD
This sprayer builds up an internal pressure of
2000 psi (138 bar, 14 MPa) during use. Follow
the Pressure Relief Procedure whenever you
stop spraying and before cleaning, checking,
servicing, or transporting equipment to prevent
serious injury from pressurized fluid such as skin
injection and splashing fluid.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in
the work area to help prevent serious injury,
including eye injury and inhalation of toxic
fumes.

3A9322B 5
Enclosure Cover Removal
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove cup assembly (10).
4. Turn prime knob (12) forward to spray
position.
5. Remove cross-head screw (21) from
prime knob (12) and remove knob.
6. Remove five cross-head screws (20)
from sprayer enclosure and remove
enclosure cover (18).
Enclosure Cover
Replacement
1. Before installing enclosure cover,
ensure wires are laid securely in wire
channels, away from pinch points such
as screw bosses and between the
enclosure seam.
2. Install new enclosure cover (18). Secure
with five cross-head screws (20). See
Assembly Drawing, page 2, for
torques.
3. Rotate prime valve stem so the valve
stem cross hole is oriented front to back
along the length of the sprayer.
NOTICE
Do not use a power drill on the sprayer.
Doing so can cause damage to the
threads.
NOTICE
Failure to ensure wires are away from
pinch points could cause the sprayer to
become inoperable after assembled.
Route the wires exactly as shown below.

6 3A9322B
4. Install prime knob (12) so the knob is
pointing forward. Install cross-head
screw (21). See Assembly Drawing,
page 2, for torques.
NOTE: The knob (12) will only rotate forward
and up.
5. After assembly is complete, perform
Assembly Verification, page 17.
Pump Assembly
Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. To replace the pump assembly (1) you
must first remove the enclosure cover
(18). See Enclosure Cover Removal,
page 5.
4. Remove pump assembly (1) (with the
hose) from SmartControl enclosure (6).
Disconnect ground wire from pump
assembly (1).
5. Disconnect electrical connectors.
Remove hose (22) from hose adapter
(15) using two wrenches.
NOTICE
Do not use a power drill on the sprayer.
Doing so can cause damage to the
threads.

3A9322B 7
6. Using same two wrenches, attach hose
(22) to hose adapter (15) of new pump
(1). Connect ground wire (A) to pump.
Place new pump assembly (1) into
SmartControl enclosure (6), while
making sure the pump gear meshes with
the motor gear.
7. Connect electrical connectors.
NOTE: Check to ensure all six pins are
present, fully inserted, and straight inside the
electrical connector on the hose before
connecting. Then push the connectors
together gently, while keeping the
connectors parallel to each other, until they
click together.
8. To reinstall enclosure cover, see
Enclosure Cover Replacement, page
5.
Prime/Spray Valve and
Knob Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove cross-head screw (21) from
prime knob (12).
4. Using a 5/8 in. (16mm) deep socket,
remove prime/spray valve (4a) from
pump assembly (1). Make certain o-ring
is remove with the valve (4a).
5. Thread new prime/spray valve (4a) into
pump assembly (1). See Assembly
Drawing, page 2, for torques.
A
NOTICE
Do not use a power drill on the sprayer.
Doing so can cause damage to the
threads.

8 3A9322B
6. Rotate prime valve stem so the valve
stem cross hole is oriented front to back
along the length of the sprayer.
7. Install prime knob (12) so the knob is
pointing forward. Install cross-head
screw (21). See Assembly Drawing,
page 2, for torques.
NOTE: The knob (12) will only rotate forward
and up.
8. After assembly is complete, perform
Assembly Verification, page 17.
Outlet Valve Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove enclosure cover (18). See
Enclosure Cover Removal, page 5.
4. Remove pump assembly (1) from
Sprayer Enclosure (6). See Pump
Assembly Replacement, page 6, steps
1-5.
5. Remove two outlet valve plugs (3b) with
8mm (5/16”) Allen wrench. Remove
hose adapter (15) with 3/4” wrench.
Remove three outlet valves (3a) and
three o-rings (27) (may be stuck inside
pump).
6. Separate the outlet valve assembly (3a)
from the hose adapter (15). Save hose
adapter for reuse.
7. Replace o-ring (26) on hose adapter
(15).
8. Make certain new o-rings (25) are
installed on the new outlet valve plugs
(3b).
NOTICE
Do not use a power drill on the sprayer.
Doing so can cause damage to the
threads.

3A9322B 9
9. Install new o-rings (27) into pump. Verify
o-rings are flat against pump bushing.
Use 8mm (5/16”) Allen wrench to lightly
push on the face of o-rings, if needed.
10. Assemble new outlet valve assemblies
(3a) into the outlet valve plugs (3b) and
hose adapter (15).
11. Check balls should move freely against
the spring in the retainers.
12. Install two outlet valve plugs (3b) and
hose adapter (15). Use 8mm (5/16”)
Allen wrench to install outlet valve plugs.
Torque hose adapter to 60 in-lb. Torque
outlet valve plugs until snug (20 in-lb).
13. Replace pump assembly, see Pump
Assembly Replacement, page 6, steps
6-8.
SmartControl Enclosure
Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove enclosure cover (18). See
Enclosure Cover Removal, page 5.
4. Remove pump assembly (1) from
SmartControl enclosure (6). See Pump
Assembly Replacement, page 6, steps
1-4. Do not remove hose from pump.
5. Replace pump assembly in new
SmartControl Enclosure. Follow Pump
Assembly Replacement, page 6, steps
6-8.
NOTICE
Do not overtighten. Doing so can cause
damage to the threads.
NOTICE
Do not use a power drill on the sprayer.
Doing so can cause damage to the
threads.

10 3A9322B
Hose Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove two cross-head screws (36) to
open gun cover (34), and disconnect
electrical connector.
4. Using two wrenches, remove hose (22)
from needle valve (32).
5. Remove enclosure cover (18). See
Enclosure Cover Removal, page 5.
6. Disconnect electrical connector from
Sprayer Enclosure (6).
7. Using two wrenches, remove hose (22)
from hose adapter (15).
8. Using same wrenches, install new hose
(22) to pump hose adapter (15) and gun
needle valve (32).
NOTICE
Do not use a power drill on the gun. Doing
so can cause damage to the threads.

3A9322B 11
9. Connect electrical connectors at gun
and pump.
NOTE: Check to ensure all six pins are
present, fully inserted, and straight inside the
electrical connector on the hose before
connecting. Then push the connectors
together gently, while keeping the
connectors parallel to each other, until they
click together.
10. Install gun cover with cross-head
screws (36). See Assembly Drawing,
page 2, for torques.
11. To reinstall enclosure cover, see
Enclosure Cover Replacement, page
5.
Spray Gun Parts
Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove two cross-head screws (36) to
open gun cover (34), and disconnect
electrical connector.
4. Using two wrenches, remove hose (22)
from needle valve (32).
NOTE: If only replacing the Gun Housing Kit,
skip steps 5-8.
NOTICE
Do not use a power drill on the gun. Doing
so can cause damage to the threads.

12 3A9322B
5. Remove four T15 torx screws (14) and
one T10 torx screw (13) to open the gun
housing. Separate the needle valve (32)
and solenoid/ trigger assembly (33) by
removing the set screw with a 1/16”
Allen wrench. Thread them apart by
hand. (See note below)
NOTE: If replacing the needle valve (32),
keep the solenoid/trigger assembly (33) for
reuse. If replacing the solenoid/trigger
assembly (33), keep the needle valve (32) for
reuse.
6. Remove the solenoid washer that was
inside the old assembly. Washer may be
stuck inside solenoid of 33 or to the
back side of 32. Place solenoid washer
on to the back side of 32.
7. Replace the new part (32 or 33) and
thread back together by hand until
bottomed out. Then back out the
thread by 1 to 1.25 revolutions. This
sets the needle stroke length.
8. Using a 1/16” Allen wrench,
hand-tighten the set screws to lock the
assembly in place.
9. Loosen the two nuts on the back plate of
the solenoid/trigger assembly (33), then
torque both nuts to 10 in-lbs to center
the assembly to the needle valve (32).

3A9322B 13
10. Reinstall the potentiometer, static wick,
trigger, and trigger lock components as
follows:
a. Ensure adjustment knob (33e) is
attached to the potentiometer.
NOTE: Alignment of #1 with the middle wire
is critical. See image below.
b. Place needle valve assembly (32)
into the smaller gun housing half.
Ensure all wires are underneath the
fluid tube, and the assembly is fully
seated into the gun housing.
NOTE: The potentiometer wires should
double back underneath the fluid tube as
shown.
c. Gently push the static wick wire
(black) into the wire channels with
a pencil eraser, then push the
static wick into the small cutout in
the back of the gun housing.
d. Use a pencil eraser to push the
white wires into the wire channels
(on top of the black wire). Place
adjustment knob assembly on the
three grooves at the bottom of the
gun housing.

14 3A9322B
e. Verify spring (33a) is on the trigger,
then install the trigger lock (33c)
into the trigger cap (33d), and
place over the trigger. Push the
trigger assembly into the gun
housing as shown. Lastly, install
the sliding plastic spring (33b).
11. Double check all wires are laid securely
in the wire channels and the static wick
is in place, then reinstall the gun housing
cover. Ensure housing cover snaps into
place (around trigger components)
before securing with four T15 torx
screws (14) and one T10 torx screw (13).
12. Using same two wrenches, install hose
(22) to needle valve (32).
NOTICE
Failure to ensure wires are away from
pinch points could cause the sprayer to
become inoperable after assembled.
Route the wires exactly as shown below.

3A9322B 15
13. Connect electrical connector.
NOTE: Check to ensure all six pins are
present, fully inserted, and straight inside the
electrical connector on the hose before
connecting. Then push the connectors
together gently, while keeping the
connectors parallel to each other, until they
click together.
14. Install gun cover with cross-head
screws (36). See Assembly Drawing,
page 2, for torques.
15. After assembly is complete, perform
Assembly Verification, page 17.
Solvent Gasket
Removal/Replacement
1. Perform Pressure Relief Procedure,
page 4.
2. Remove battery (24) from sprayer.
3. Remove tip guard (16).
4. Apply pressure while threading solvent
gasket removal tool into the worn gasket
on the gun needle valve (32).

16 3A9322B
5. Once solvent gasket removal tool
bottoms out on the gun face, continue
threading tool into gasket until gasket is
removed from the gun. Worn gasket will
be threaded onto the tool.
6. Use a pliers to remove and discard worn
gasket. Pinch gasket with pliers then
unthread the tool until gasket pops off.
7. Place new solvent gasket (37) onto
opposite side, non-threaded stud of the
solvent gasket installation tool.
8. Assemble tool into the supplied nut.
9. With installation tool, hand tighten the
nut onto front of the gun. Continue to
tighten until the nut has bottomed out.
NOTE: It is recommended to hold the
installation tool below the gun so the gasket
stays centered.
10. Remove nut and tool assembly from
gun. Gasket (37) should be pressed into
the gun needle valve (32).

3A9322B 17
Assembly Verification
After assembly is complete, perform the
following steps to verify proper operation. If
sprayer fails one of the steps, repeat sprayer
repair procedures.
•Rotate Prime Pump/Spray knob to
make sure it rotates forward to the spray
position and down to the prime pump
position.
•Fill cup assembly (10) with water and
verify sprayer primes and sprays. Follow
setup instructions in sprayer operation
manual for proper priming and spraying
procedure.
California Proposition 65
CALIFORNIA RESIDENTS
WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov.

All written and visual data contained in this document reflects the latest product information available at
the time of publication. Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 3A9322
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2023, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision B, April 2023
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For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call 1-888-541-9788 to identify the nearest
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