Instructions – Parts List
STAINLESS STEEL
Hydra–Cleanr Spray Gun
307010L
1000 psi (6.9 MPa, 69 bar) Maximum Working Pressure
Model 208008, Series D
Spray tip not included, purchase separately. See page 12 for Tip Selection Chart.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for Table of Contents.
8106
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 1971, Graco Inc. is registered to I.S. EN ISO 9001
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WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor air ventilation, open flames, or sparks can cause a hazardous condition and
result in fire or explosion and serious injury.
D Ground the equipment and the object being sprayed. See Grounding on page 4.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvent or the fluid being
sprayed.
D Extinguish all the open flames or pilot lights in the spray area.
D Electrically disconnect all the equipment in the spray area.
D Keep the spray area free of debris, including solvent, rags, and gasoline.
D Do not turn on or off any light switch in the spray area while operating or if fumes are present.
D Do not smoke in the spray area.
D Do not operate a gasoline engine in the spray area.
D If there is any static sparking while using the equipment, stop spraying immediately. Identify and
correct the problem.
SKIN INJECTION HAZARD
Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause an
extremely serious injury, including the need for amputation. Splashing fluid in the eyes or on the skin
can also cause a serious injury.
D Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-
cal treatment.
D Do not point the spray gun at anyone or at any part of the body.
D Do not put hand or fingers over the spray tip.
D Do not stop or deflect fluid leaks with your hand, body, glove, or rag.
D Do not “blow back” fluid; this is not an air spray system.
D Always have the tip guard and the trigger guard on the spray gun when spraying.
D Be sure the gun trigger safety operates before spraying.
D Lock the gun trigger safety when you stop spraying.
D Follow the Pressure Relief Procedure on page 4 whenever you: are instructed to relieve pres-
sure; stop spraying; clean, check, or service the equipment; and install or clean the spray tip.
D Tighten all the fluid connections before operating the equipment.
D Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
307010
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Setup
Pressure Relief Procedure
Grounding
WARNING
PRESSURIZED EQUIPMENT HAZARD
WARNING
FIRE AND EXPLOSION HAZARD
Proper electrical grounding is essential
to reduce the risk of fire or explosion
which can result in serious injury and
property damage. Also read FIRE OR
EXPLOSION HAZARD on page 3.
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. To
reduce the risk of an injury from accidental spray
from the gun, splashing fluid, or moving parts,
follow the Pressure Relief Procedure whenever
you:
D are instructed to relieve the pressure,
D stop spraying,
1. Pump or Sprayer: as instructed in your separate
pump or sprayer manual.
D check or service any of the system equipment,
D or install or clean the spray nozzle.
2. Air compressor or hydraulic power supply: accord-
ing to local code.
1. Lock the gun trigger safety.
3. Fluid hoses: use only grounded hoses with a
maximum of 500 feet (150 m) combined hose
length to ensure grounding continuity.
2. Shut off the power supply to the pump and close
any bleed-type master air valves in the air supply.
3. Unlock the gun trigger safety.
4. Spray gun: obtain grounding through connection to
a properly grounded fluid hose and sprayer or
pump.
4. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun into the
pail to relieve pressure.
5. Fluid supply container: according to local code.
6. Object being sprayed: according to local code.
5. Lock the gun trigger safety.
6. Open the pump fluid drain valve (required in the
system), having a container ready to catch the
drainage.
7. All solvent pails used when flushing, according to
local code. Use only metal pails, which are con-
ductive. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which inter-
rupts the grounding continuity.
7. Leave the drain valve open until you are ready to
spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above, very slowly loosen the
tip guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Now clear
the tip or hose.
8. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun firmly to the side of a metal pail, then trigger
the gun.
4
307010
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Installation
1. Connect a grounded fluid hose to the gun inlet.
WARNING
2. With no tip installed, start the pump/sprayer. Flush
it according to the instructions supplied with it.
Prime the system with the fluid you are using.
SKIN INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
3. Relieve the pressure.
Procedure on page 4.
NOTE: Numbers and letters in parentheses in the text
correspond to the reference numbers and letters in the
text and drawings.
B
A
WARNING
SKIN INJECTION HAZARD
Be sure your system has a bleed-type
master air valve (pneumatic pumps
9
only) and a fluid drain valve. These two
accessories help reduce the risk of serious injury,
including fluid injection, splashing in the eyes, or
on the skin, or injury from moving parts, if you are
adjusting or repairing the pump or gun.
8105
Fig. 1
4. WIth the gun safety latch engaged, unscrew the tip
guard (9) and install the tip (A) and gasket (B) in
the nut of the tip guard. Screw the assembly firmly
onto the gun. TIghten with a wrench. See Fig. 1.
1. The bleed-type master air valve relieves air
trapped between this valve and the pump after
the air regulator is shut off. Trapped air can
cause the pump to cycle unexpectedly.
NOTE: Failure to install the tip gasket (B) will result in
leaking.
2. The fluid drain valve assists in relieving fluid
pressure in the displacement pump, hose,
and gun; triggering the gun to relieve pressure
may not be sufficient.
5. Strain the fluid you are spraying if it contains
particles which could clog the spray tip.
307010
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Operation
WARNING
SKIN INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 4.
Safety Off
Whenever you stop spraying for a moment, en-
gage the gun safety latch. See Fig. 2.
WARNING
The wallet-sized warning card provided with this
gun should be kept with the operator at all times.
The card contains important treatment informa-
tion should an injection injury occur. Additional
cards are available at no charge from Graco Inc.
Safety On
1. Start the pump. Adjust the fluid pressure so the
spray is completely atomized. Always use the
lowest pressure necessary to get the desired
results. Higher pressure may not improve the
spray pattern and will cause premature tip and
pump wear.
2. If adjusting the pressure does not give a good
spray pattern, try another tip size. Be sure to relive
pressure completely before changing tips.
8122
Fig. 2
3. Use a full-open, full-close trigger action. Hold the
gun about 14 in. (350 mm) from and at right angles
to the work surface. Do not swing the gun in an
arc. Practice to find the best length and speed of
stroke.
6
307010
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Operation
Cleaning and Clearing the Spray Tip
WARNING
Clean off the front of the tip frequently during the day’s
operation and at the end of the work day. Always
relieve the pressure and use a solvent soaked brush
to clean the spray tip and to keep fluid buildup from
drying and clogging the spray tip.
SKIN INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 4.
If the spray tip clogs while spraying, release the spray
gun trigger, engage the trigger safety, shut off the
pump, and relieve the pressure. Then, remove the air
spray tip and blow out the obstruction with air from the
front of the spray tip, or let the spray tip and gun
nozzle soak long enough to dissolve the obstruction. If
the obstruction will not dissolve, jar it out by tapping
the back of the spray gun against a flat surface.
Adjust the Spray Pattern
1. To adjust the spray pattern, relieve the pressure.
Engage the safety latch and loosen the tip guard
retaining nut. Turn the spray tip so the groove is
horizontal for a horizontal spray pattern, and
vertical for a vertical pattern. Tighten the nut.
CAUTION
2. The spray tip orifice size and spray angle deter-
mines the coverage and size of pattern. When
more coverage is needed, use a larger spray tip
rather than increasing fluid pressure.
Never soak the entire gun in solvent. Prolonged
exposure to solvent can ruin the packings.
Flushing the Gun
WARNING
WARNING
SKIN INJECTION HAZARD
SKIN INJECTION HAZARD
Before flushing, be sure the entire sys-
tem and flushing pails are properly
To reduce the risk of a fluid injection
injury, never use the gun with the tip
guard or trigger guard removed.
grounded. Refer to Grounding on page
4. Relieve the pressure and remove the spray
tip from the gun. Always use the lowest possible
fluid pressure, and maintain firm metal-to-metal
contact between the gun and the pail during flush-
ing to reduce the risk of a fluid injection injury,
static sparking, and splashing.
CAUTION
Openings in the tip guard are designed to reduce
paint buildup on the guard while spraying. Any
damage to the sharp edges of the openings causes
paint to collect at that area. To reduce the risk of
damage, never hang the gun by the tip guard.
Relieve the pressure, remove the spray tip, and then
flush the gun and spray system with a compatible
solvent. Always flush the gun before the fluid being
sprayed can dry in it.
307010
7
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Troubleshooting
If the gun leaks at the swivel (21), see Swivel
Repair, below.
If the gun leaks at the nozzle, try adjusting the
trigger free play. See Needle Adjustment on page 9.
If the leakage is not stopped, the needle (10) or valve
seat (8) may need to be replaced. See Gun Repair on
page 10.
14
Safety Off
If the gun leaks at the packing nut (14), check the
tightness of the packing nut. Remove the tip guard or
nozzle extension. Insert a 0.125 in. (3.18 mm) diame-
ter rod into the needle tip and tighten just enough to
stop leakage. See Fig. 3. If leakage is not stopped, the
packings or needle may need to be replaced. See Gun
Repair, page 10.
8125
Fig. 3
8
307010
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Service
3. To adjust, remove the tip guard or nozzle exten-
WARNING
sion. Release the safety latch. Squeeze the
trigger and loosen the locknut (4). Insert the
wrench (3) into the tip of the needle (10) and turn it
in or out until the proper free play is obtained.
Tighten the locknut (4).
SKIN INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
4. Install the tip guard. Start the system. Trigger the
gun and release; fluid flow should stop immediate-
ly. Now engage the trigger safety latch. Try to
trigger the gun; no fluid should flow. If the gun
fails either test, relieve the pressure and re-
adjust the needle.
Procedure on page 4.
Swivel Repair
1. Relieve the pressure.
2. Unscrew the swivel stud (21) from the gun. Re-
move the spring (22), glands (24†, 25†), and
packings (23†) from the swivel housing (26). See
Fig. 4.
22
3. Clean all parts and inspect. The ball bearing in the
swivel stud should rotate freely. Replace any worn
or damaged parts.
24†
23†
25†
NOTE: Repair kit 207308 is available for the swivel.
Use all the parts in the kit for the best results.
21
4. Install the spring (22), male gland (24†) and five
v-packings (23†) one at a time, make sure the lips
of the v-packings face into the housing. Install the
female gland (25†) and the swivel stud.
8124
Fig. 4
Needle Adjustment
4
WARNING
10
Proper adjustment of the needle is essential to
be sure the trigger safety latch makes the gun
inoperative when engaged. Improper adjustment
may allow the gun to be triggered, even with the
trigger safety latch engaged, resulting in serious
injury, including fluid injection and splashing in
the eyes or on the skin.
1. Relieve the pressure. Disconnect the hose.
3
2. With the trigger safety latch (29) engaged,
squeeze the trigger. There should be about 0.125
in. (3.18 mm) free play at the end of the trigger.
See Fig. 6 on page 10.
8102
Fig. 5
307010
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Service
5. Clean and inspect all parts. Replace worn or
WARNING
SKIN INJECTION HAZARD
damaged parts as needed. If using a repair kit, use
all the parts in the kit during reassembly.
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
6. Lubricate the needle and slide it into the front of
the gun body (2).
Procedure on page 4.
7. Lubricate the new packings and glands. One at a
time, place these parts on the needle; the male
gland (11*), four v-packings (12*) with the lips of
the v-packings facing the front of the gun, and the
female gland (13*).
Gun Repair (See Fig. 6)
NOTE: Repair kit 208328 is available for the needle
packings. Use all the parts in the kit for the best re-
sults.
8. Screw the packing nut (14) into the center of the
gun body. Screw the locknut (4) onto the needle.
9. Be sure the spring (16) is in the gun body at the
rear of the center opening. Then, install the adjust-
ing nut (7). Using the wrench (3), insert through
the front of the gun, screw the needle (10) into the
adjusting nut until its end is flush with the valve
body.
1. Relieve the pressure. Disconnect the hose.
Remove the tip guard (9) or nozzle extension.
2. Unscrew the seat housing (18) and valve seat (8*)
from the gun body.
10. Press the new valve seat (8*) into the body. Screw
on the seat housing.
3. Using the wrench (3), loosen the packing nut (14).
Then use the wrench (3) to unscrew the needle
(10) from the adjusting nut.
11. Adjust the needle before operating the gun. See
Needle Adjustment on page 9.
4. Pull back the trigger (27) and remove the packing
nut (14) and two glands (11*, 13*), four packings
(12*) and locknut (4).
12. Be sure the tip guard and trigger guard are
installed before using the gun.
2
10
*8
18
9
8104
3
Safety On
4
16
7
*12
*11
14
13*
1.25in. (3.18 mm)
Free Travel
8123
Fig. 6
10
307010
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Parts
2
5
10
*8
18
9
19
31
30
5
1/4 npt(f)
3
1
4
14
16
*13
7
*12
6
*11
27
26
17
22
†24
†23
†25
29
28
21
3/8 npt(f)
8103
307010
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Parts
Ref
No.
Ref
Part No.
Description
Qty
No.
Part No.
Description
Qty
1
203953
SCREW, hex hd cap; w/nylon
locking pellet; no. 10–24 x 3/8
BODY, valve
WRENCH, hex key; for 0.125 in.
(3.18 mm) hex socket in needle
NUT, hex mach; no. 8–32
SCREW, pan hd mach;
no. 8–32 x 7/16; stainless steel
PIN, pivot
19
21
22
23†
24†
25†
26
169581
206638
165085
166226
166228
166229
168762
214660
GRIP, gun
STUD, swivel
SPRING
1
1
1
5
1
1
1
1
1
2
3
208028
101690
V-PACKING; PTFE
GLAND, male packing
GLAND-BEARING, female packing
HOUSING, swivel
TRIGGER ASSEMBLY
Includes replacement items 28 & 29
. SPRING, compression
. LATCH, trigger safety
PLATE, warning
1
1
4
5
102931
104836
2
1
1
1
1
1
1
4
1
1
1
1
1
27
6
7
8*
9
10
11*
12*
13*
14
16
17
18
160217
166808
166811
220250
166814
166815
166816
166817
166818
166820
168761
168766
1
1
1
1
2
1
1
NUT, adjusting
SEAT, valve; PTFE
TIP, guard
28
29
30
31
32‡
33‡
104814
175017
175020
102299
172479
179960
NEEDLE
RIVET, blind
TAG, warning (not shown)
CARD, warning (not shown)
GLAND, male packing
V-PACKING; PTFE
GLAND, female packing
NUT, packing
SPRING
GUARD, trigger
* Included in Repair Kit 208238.
† Included in Repair Kit 207308
HOUSING, seat
‡ Extra warning tags and cards available at no cost.
Tip Selection Charts
Blasting Tips and Stainless Steel
Flow Rate* at
Orifice Size 500 psi (0.35 MPa, 35 bar)
Part
No.
Number on Tip
in. (mm)
gpm (l/min.)
102446 0010ss (SST)
102450 0020ss (SST)
0.086 (2.18)
0.125 (3.18)
3.5 (13.2)
7.1 (27.0)
Stainless Steel
Capacity* at
500 psi (0.35 MPa, 35 bar)
gpm (l/min.)
Part
No.
Orifice Size
in. (mm)
Fan Width Angle at
40 psi (0.03 MPa, 3 bar)
Number on Tip
160959 4001
160970 15015
160965 25015
160958 4002
160964 2503
160963 2506
103921 6540
165477 2510
165090 4010
165089 2515
160968 1520
160962 2520
160956 4020
0.26 (0.66)
0.031 (0.79)
0.031 (0.79)
0.036 (0.91)
0.043 (1.09)
0.062 (1.57)
0.065 (1.57)
0.078 (1.98)
0.078 (1.98)
0.0937 (2.38)
0.1093 (2.78)
0.1093 (2.78)
0.1093 (2.78)
40_
15_
25_
40_
25_
25_
40_
25_
40_
25_
15_
25_
40_
.35 (1.3)
.53 (2.0)
.53 (2.0)
.71 (2.7)
1.1 (4.2)
2.1 (7.9)
2.3 (8.0)
3.5 (13.2)
3.5 (13.2)
5.3 (20.1)
7.5 (28.4)
7.5 (28.4)
7.5 (28.4)
12
307010
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Technical Data
Maximum Working Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 psi (6.9 MPa, 69 bar)
Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stainless Steel, PTFE, Brass
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.25 in. (209.6 mm)
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.75 in. (171.5 mm)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.25 lb (0.57 kg)
Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 npt(f) swivel
307010
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Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from
defects in material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the
exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of
sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment
is installed, operated and maintained in accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or sub-
stitution of non–Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and
transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD
BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches,
hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in mak-
ing any claim for breach of these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnais-
sent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires
exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers
to identify the distributor closest to you:
1–800–328–0211 Toll Free
612–623–6921
612–378–3505 Fax
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.
MM 307010
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN U.S.A. 307010 4/2006
14
307010
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