INSTRUCTIONS-PARTS LIST
306926
Rev. L
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
First choice when
quality counts.t
INSTRUCTIONS
10:1 RATIO BULLDOG, PORTABLE, STAINLESS STEEL RUBBER PACKED
Hydra-CleanR Pressure Washer
1000 psi (6.9 MPa, 69 bar) Maximum Working Pressure
Model 226314, Series G
06648B
CAUTION
The Graco warranty will not apply if cleaning solutions other
than those recommended by Graco are used in these units.
Only use solutions that are not harmful to the wetted parts.
See the Technical Data on page 9.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1996, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
WARNING
INJECTION HAZARD
Spray from the gun, leaks or ruptured components can inject fluid into your body and cause extremely
serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also
cause serious injury.
D Fluid injected into the skin is a serious injury. The injury may look like just a cut, but it is a serious
injury. Get immediate medical attention.
D Do not point the gun at anyone or at any part of the body.
D Do not put your hand or fingers over the spray tip.
D Do not stop or deflect leaks with your hand, body, glove or rag.
D Always have the tip guard and the trigger guard on the 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 6 if the spray tip clogs and before cleaning,
checking or servicing the equipment.
D Tighten all fluid connections before operating the equipment.
D Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and re-
sult in a fire or explosion and serious injury.
D Ground the equipment and the object being sprayed. Refer to Grounding on page 4.
D If there is any static sparking or you feel an electric shock while using this equipment, stop spray-
ing immediately. Do not use the equipment until you identify and correct the problem.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
D Keep the spray area free of debris, including solvent, rags, and gasoline.
D Before operating this equipment, electrically disconnect all equipment in the spray area.
D Before operating this equipment, extinguish all open flames or pilot lights in the spray area.
D Do not smoke in the spray area.
D Do not turn on or off any light switch in the spray area while spraying or while operating if fumes
are present.
D Do not operate a gasoline engine in the spray area.
MOVING PARTS HAZARD
Moving parts, such as the air motor piston, can pinch or amputate your fingers.
D Keep clear of all moving parts when starting or operating the pump.
D Never operate the pump with the air motor plates removed.
D Before checking or servicing the equipment, follow the Pressure Relief Procedure on page 6 to
prevent the equipment from starting unexpectedly.
306926
3
Installation
3. Air and fluid hoses: use only electrically conductive
Grounding
hoses.
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE AND EXPLOSION
HAZARD on page 3.
4. Air compressor: follow manufacturer’s recommen-
dations.
5. Spray gun: ground through connection to a prop-
erly grounded fluid hose and pump.
Although water generally provides a natural electrical
ground, the following equipment must be grounded if
the cleaning chemicals are volatile.
6. Fluid supply container: follow your local code.
7. Object being sprayed: follow your local code.
1. When cleaning in enclosed areas, such as storage
tanks, locate the pump and air compressor outside
the area and well away from it. Provide adequate
ventilation. If the area you are cleaning has stored
flammable materials. take appropriate precautions
to avoid static sparking. Consult your local codes.
8. Solvent pails used when flushing: follow your local
code. Use only metal pails, which are conductive,
placed on a grounded surface. Do not place the
pail on a nonconductive surface, such as paper or
cardboard, which interrupts the grounding continu-
ity.
2. Pump: use a ground wire and clamp. See Fig. 1.
Remove the ground screw (Z) and insert through
the eye of the ring terminal at end of ground wire
(Y). Fasten the ground screw back onto the pump
and tighten securely. Connect the other end of the
wire to a true earth ground. Order Part No. 222011
Ground Wire and Clamp.
9. To maintain grounding continuity when flushing or
relieving pressure, hold a metal part of the spray
gun firmly to the side of a grounded metal pail,
then trigger the gun.
Z
Y
General Information
The typical setup shown in Figure 2 is only a guide to
selecting and installing required and optional compo-
nents. For assistance in designing a system to suit
your needs, contact your Graco representative. Refer
to Figure 2 for callouts in parentheses.
TI1052
Fig. 1
4
306926
Installation
E
D
F
24
47
18
E
C
2
10
16
28
B
22
35
A
06649B
Fig. 2
Refer to the separate instructions, supplied, for instruc-
tions on filling and adjusting the air line lubricator.
Pump Setup
See Fig. 2. Connect the suction hose (28) between the
pump inlet (A) and the suction tube (18), using thread
sealant on the male threads. Screw on the suction
tube filter (B). Place the suction tube in the supply
drum, and adjust it so it is 1 in. (25 mm) off the bottom
of the drum. Tighten the thumbscrew (2) of the pipe
hanger onto the drum.
Close the air shutoff valve (E). Then, connect a 3/4 in.
ID (minimum) air supply hose (D) to the 3/4 npt (m) air
manifold (F) swivel.
Ground the system as described on page 4.
Connect the spray hose (22) to the pump outlet man-
ifold (16). For two gun spraying, remove the plug (10)
in the manifold and connect another spray hose.
Connect the spray gun (35) to the hose (22). Use
thread sealant on the male threads.
An important step in installing this sprayer is to read
and understand each of the instruction manuals sup-
plied with sprayer. These manuals contain additional
warnings, cautions, and detailed instructions about
installing, operating, and servicing the various system
components.
Fill the displacement pump wet-cup (C) 1/2 full with
Throat Seal Liquid, or a compatible solvent.
306926
5
Operation
Pressure Relief Procedure
Pump Operation
Prepare the cleaning solution according to the
manufacturer’s instructions. For your own safety, be
sure to observe all warnings. If you are using pow-
dered cleaners, mix them thoroughly in a separate pail
before adding them to a supply drum. Undissolved
powders are extremely abrasive and may damage
pump parts.
WARNING
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause seri-
ous injury. To reduce the risk of an injury
from injection, splashing fluid, or moving parts, fol-
low the Pressure Relief Procedure whenever you:
D are instructed to relieve the pressure,
D stop spraying,
WARNING
D check or service any of the system equipment,
D or install or clean the spray tips.
Wear appropriate protective clothing, such as
waterproof outerwear and eye goggles, according
to the cleaner manufacturer’s recommendations.
Cleaning chemicals may be toxic, and cause
serious irritation to your eyes or skin.
1. Lock the gun trigger safety.
2. Close the air regulator.
3. Close the bleed-type master air valve (E).
4. Unlock the gun trigger safety.
See Fig. 2. To start the pump, close the bleed–type
master air valve (E), close the air regulator (24) by
turning the T-handle all the counterclockwise until the
spring tension is relieved. Open the shutoff valve, hold
a metal part of the gun firmly to the side of a grounded
metal pail, trigger the gun, and slowly open the regula-
tor until fluid comes from the gun. Release the trigger;
the pump will stall against pressure.
5. Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
6. Lock the gun trigger safety.
7. Open the drain valve (required in your system),
having a container ready to catch the drainage.
When supplied with an adequate air pressure and
volume, the pump will start and stop as the gun is
opened and closed.
8. 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 and relieve
pressure gradually. Then, loosen completely. Clear the
tip or hose obstruction.
Use the air regulator (24) to control pump speed and
fluid pressure. Always use the lowest pressure neces-
sary to get the desired result. Higher pressures will
waste the material and cause early spray tip and pump
wear.
6
306926
Operation
Always stop the pump at the bottom of its stroke to
WARNING
prevent material from drying on the rod and damaging
the packings.
To reduce the risk of overpressurizing the sprayer,
NEVER exceed 1000 psi (6.9 MPa, 69 bar) Maxi-
mum Working Pressure. If you add any accesso-
ries to the fluid line, be sure they are rated for at
least 1000 psi (6.9 MPa, 69 bar) working pressure.
CAUTION
Never let the pump run dry. A pump that is running
too fast can damage itself. Shut the pump off imme-
diately, then check and refill the supply container to
prevent air from being sucked into the system, keep
liquid in the supply container at all times.
Adjust the air line lubricator to about two drops per
minute through the sight glass when the pump is
running. Refer to the separate instruction manual,
supplied, for adjustment instructions.
WARNING
Useful Hints
Check the bleed–type master air valve (E) weekly
to be sure it relieves all air in the motor when in the
closed position. If it is not completely relieved, the
pump could cycle unexpectedly and cause serious
injury. Replace the valve immediately it it is, or
appears to be faulty.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
Shutdown and Care of the Sprayer
Protect surfaces that may be damaged by the cleaning
solution. Rinse the solution off before it dries.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
Hold the spray nozzle about 2 feet (2/3 meter) from the
surface and completely mist-wet the object you are
cleaning. Let the object soak briefly, then use the
spray to “chisel” the dirt off. Keep the nozzle about
6 in. (153 mm) from and at an angle to the surface. If
some dirt remains, wet the surface again, let it soak a
little longer, then hold the nozzle close to the surface to
blast the dirt off. A heated cleaning solution may work
better; check with your cleaner manufacturer.
Check the air line lubricator to ensure that it contains
enough oil.
Relieve the pressure, and check the displacement
pump packing nut adjustment often. The packing nut
should be tight enough to stop leakage, but no tighter.
After all dirt is cleaned off, rinse all the solution off with
clean, cold water. Relieve the pressure whenever you
stop spraying.
Keep the displacement pump wet-cup (C) 1/2 full at all
times. The TSL helps protect the pump packings. See
Fig. 2.
306926
7
Troubleshooting
NOTE: Refer to the separate instruction manuals
which are supplied with this sprayer, and the manuals
which are supplied with any accessories you added,
for complete operation, troubleshooting and repair
instructions.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 6.
NOTE: Check all possible problems and solutions
before disassembling the unit.
NOTE: Relieve the pressure before checking or
servicing the equipment.
Problem
Cause
Solution
Insufficient air supply
See performance chart on page 9.
Will not spray
Closed or clogged air regulator, valve, Open, clear.
supply line, etc.
Obstructed spray tip, valve, or hose
Worn or damaged pump parts
Clogged fluid intake filter
Clear, use larger tip.
See manual 306818 or 306821.
Clean.
Valve will not stop pump operation
Exhausted cleaning solution supply
Worn or damaged pump parts
Incorrect valve adjustment
Refill.
See manual 306818 or 306821.
Adjust; see manual 307010.
Clear, replace; see manual 307010.
Valve will not stop fluid spray
Obstructed or worn valve stem or
seat
Closed or clogged air regulator, valve, Open, clear.
supply line, etc.
Fluid leaking from valve at needle
Worn needle packings or loose pack- Tighten; see manual 307010
ing nut
Insufficient air supply
See performance chart on page 9.
Fluid will not come from pump
(hose removed)
Closed or clogged air regulator, valve, Open, clear.
supply line, etc.
Obstructed spray tip, valve, or hose
Clogged fluid intake filter
Clear, use larger tip.
Clean.
Exhausted cleaning solution supply
Worn or damaged pump parts
Obstructed spray tip, valve, or hose
Exhausted cleaning solution supply
Worn or damaged pump parts
Spray valve swivel packings worn
Refill.
See manual 306818 or 306821
Clear, use larger tip.
Refill.
Pump operating, but output low
Fluid leaking from valve handle
See manual 306818 or 306821
Replace; see manual 307010
8
306926
Pump Performance Chart
7 cycles per gallon (3.8 liter)
Maximum recommended continuous speed: 60 cycles/min: 8 gpm (29 liter/min)
40 psi (0.3 MPa, 3 bar)
AIR SUPPLY TO PUMP
70 psi (0.5 MPa, 5 bar)
AIR SUPPLY TO PUMP
100 psi (0.7 MPa, 7 bar)
AIR SUPPLY TO PUMP
SPRAY TIP
ORIFICE
SIZE
GPM
CFM
GPM
CFM
GPM
CFM
(l/min) (m#/min)
WP
(l/min) (m#/min)
WP
(l/min) (m#/min)
WP
0.065 in.
1.7
10
340 psi
2.3
24
590 psi
2.7
38
825 psi
(1.65 mm)
(6.6)
(0.28)
(2.4 MPa, 24 bar)
(8.9)
(0.67)
(4.0 MPa, 40 bar)
(10.2)
(1.06)
(5.7 MPa, 57 bar)
0.078 in.
(1.98 mm)
2.9
(11.2)
17
(0.48)
330 psi
(2.3 MPa, 23 bar)
3.8
(14.6)
38
(1.06)
560 psi
(3.8 MPa, 38 bar)
4.5
(17.0)
60
(2.08)
800 psi
(5.5 MPa, 55 bar)
0.094 in.
(2.39 mm)
4.2
(16.3)
25
(0.70)
320 psi
(2.2 MPa, 22 bar)
5.4
(20/9)
54
(1.51)
540 psi
(3.7 MPa, 37 bar)
6.5
(24.5)
83
(2.32)
760 psi
(5.2 MPa, 52 bar)
0.109 in.
(2.77 mm)
5.4
(20.9)
33
(0.92)
300 psi
(2.1 MPa, 21 bar)
7.3
(28.3)
7.3
(28.3)
510 psi
(3.5 MPa, 35 bar)
8.5
(32.2)
95
(2.66)
700 psi
(4.8 MPa, 48 bar)
KEY TO PERFORMANCE CHART
GPM: Gallons Per Minute
CFM: Cubic Feet Per Minute
PSI: Pounds Per Square Inch
WP: Working Pressure in psi
Technical Data
Air Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40–100 psi (0.3–0.7 MPa, 3–7 bar)
Pump cycles per gallon (3.8 liter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maximum recommended pump speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 cycles per minute: 8 gpm (29 liter/min)
Recommended speed for optimum pump life . . . . . . . . . . . . . . . . . . . . . . . . . 20 cycles per minute: 3 gpm (11 liter/min)
Air consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See chart above
Pump discharge pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See chart above
Fluid hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.38 in. (9.7 mm) ID; 3 wire braid; 40’ (12.2 m) lg;
3/8 npt(m) stainless steel couplings; 2250 psi
(15.6 MPa, 156 bar) maximum working pressure
R
Spray gun. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pistol grip with PTFE packings and 10 in. (254 mm)extension tube
1000 psi (6.9 MPa, 69 bar) maximum working pressure
Intake filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 mesh wire screen; brass body
Wetted parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type 302, 303, 304 & 316 Stainless Steel; Brass; Nitrile Rubber
R
306926
9
Parts
Detail A
Detail B
24
48
47
30
33
46
32
34
21
26
1c
1e, 1f, 1g
Detail B
1d
17
23
2
10
16
31
28
1
1a
1b
18
15
35
29
22
Detail A
42
19
7663B
10
306926
Parts
Model 226314, Series G
10:1 Bulldog Portable Hydra-Clean Unit
Ref.
Ref.
No.
Part No.
Description
Qty.
No.
Part No.
206797
237522
Description
Qty.
1
244530
CART ASSY, global
Includes items 1a–1g
. WHEEL
. RING, retaining
. CAP
26
10:1 BULLDOG PUMP;
See manual 306821 for parts
HOSE, coupled; nylon; 1 in. (25 mm)
ID; cpld 1–11 1/2 npt(m);
6’ (1.8 m) long
SPRAY VALVE EXTENSION ASSY;
Includes item 30, 32, 33, 34
. TUBE, extension; 1/4 npt(m);
10 in. (254 mm) long
SWIVEL
1
2
2
2
1
4
4
4
1
1
1
1
1a
1b
1c
1d
1e
1f
1g
2
10
15*
16
113362
113436
113361
191605
100131
100133
100004
100085
101748
165447
166444
28
1
1
. BRACKET
. NUT, hex; 3/8–16
29
30
207299
164017
. WASHER, lock; 3/8
. SCREW, cap, hex hd
SCREW, thumb; 0.25–20 x 0.5 in.
PLUG, pipe; 3/8 npt
FILTER, fluid intake; 1 in. npt(f)
MANIFOLD, outlet; 1 in. npt(m) x
3/8 npt(f)
COUPLING, hex pipe; 1 in. npt
TUBE, suction; 1 in. npt(mbe);
max. adj. height 30 in. (0.76 m)
ELBOW, street; reducing;
1–1/2 npt (m) x 1 in. npt (f)
HOSE, coupled
HOSE, fluid cpld 3/8 npt(m), 40 ft
(12.2 m) lg. Buna-N; 3/8 in. ID
HANGER, pipe
1
1
31
32*
103977
103921
TIP, spray, 40_ fan angle; .065 in.
(1.65 mm) orifice
1
1
1
33
34
35
175019
220220
237485
BODY, nozzle
GUARD, tip
SPRAY GUN
See manual 307010 for parts
GROUND WIRE ASSY
UNION, swivel
VALVE, safety relief
LUBRICATOR, air
1
1
17
18
166629
166630
1
1
1
1
1
1
1
41
42
46
47
48
244524
235208
113498
C11034
116522
19
180180
1
1
21
22*
238374
205753
CONNECTOR, air control
1
1
23
24
205770
244720
* Recommended Tool Box spare parts. Keep these spare
parts on hand to reduce down time.
AIR REGULATOR
See manual 309341 for parts
1
306926
11
Graco Standard Warranty
Graco warrants all equipment 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 accor-
dance 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 making 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 Phone Numbers
TO PLACE AN ORDER, contact your Graco distributor, or call one of the following numbers
to identify the distributor closest to you:
1–800–367–4023 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.
Sales Offices: Minneapolis, Detroit
International Offices: Belgium, Korea, Hong Kong, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
PRINTED IN U.S.A. 306926 January 1967 Revised October 2001
12
306926
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