Graco Bulldog 245187, Bulldog 245186, Bulldog 253697, Bulldog 245185, Bulldog 307932R User Manual
Instructions
Parts
28:1/33:1 RATIO, WALL MOUNT
Bulldogr Pumps
For ambient temperature spray applications.
Part No. 245187, 33:1, Series B
3300 psi (22.8 MPa, 228 bar) Maximum Fluid Working Pressure
100 psi (700 kPa, 7 bar) Maximum Air Input Pressure
Part No. 253697, 28:1, Series A
2800 psi (19.3 MPa, 193 bar) Maximum Fluid Working Pressure
100 psi (700 kPa, 7 bar) Maximum Air Input Pressure
Part No. 245185, Series B (240 Volt Heater)
Part No. 245186, Series B (480 Volt Heater)
For heated spray applications.
3000 psi (20.7 MPa, 207 bar) Maximum Fluid
Working Pressure
90 psi (600 kPa, 6 bar) Maximum Air Input Pressure
307932R
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for Table of Contents.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
Copyright 1998, Graco Inc. is registered to I.S. EN ISO 9001
4414B
Model 245187 Shown
Table of Contents
Symbols
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation/Maintenance 14. . . . . . . . . . . . . . . . . . . . . . . .
Parts 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layout 20. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 22. . . . . . . . . . . . . . . . . . . . . .
Graco Information 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARNING
EQUIPMENT MISUSE HAZARD
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
INSTRUCTIONS
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
This equipment is for professional use only.
Read all instruction manuals, tags, and labels before operating the equipment.
Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
Do not alter or modify this equipment.
Check equipment daily. Repair or replace worn or damaged parts immediately.
Do not exceed the maximum working pressure of the lowest rated system component. Refer to the
Technical Data on page 21 for the maximum working pressure of this equipment.
Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
Do not use hoses to pull equipment.
Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 180F (82C) or below –40F (–40C).
Wear hearing protection when operating this equipment.
Do not lift pressurized equipment.
2 307932
Comply with all applicable local, state, and national fire, electrical, and safety regulations.
WARNING
SKIN 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.
Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate surgi-
cal treatment.
Do not point the gun at anyone or at any part of the body.
Do not put your hand or fingers over the spray tip.
Do not stop or deflect leaks with your hand, body, glove or rag.
Do not “blow back” fluid; this is not an air spray system.
Always have the tip guard and the trigger guard on the gun when spraying.
Check the gun diffuser operation weekly. Refer to the gun manual.
Be sure the gun trigger safety operates before spraying.
Lock the gun trigger safety when you stop spraying.
Follow the Pressure Relief Procedure on page 14 if the spray tip clogs and before cleaning,
checking or servicing the equipment.
Tighten all fluid connections before operating the equipment.
Check the hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
Do not repair high pressure couplings; you must replace the entire hose.
Use only Graco approved hoses. Do not remove the spring guard that is used to help protect the
hose from rupture caused by kinks or bends near the couplings.
MOVING PARTS HAZARD
Moving parts, such as the air motor piston, can pinch or amputate your fingers.
Keep clear of all moving parts when starting or operating the pump.
Before servicing the equipment, follow the Pressure Relief Procedure on page 14 to prevent the
equipment from starting unexpectedly.
3307932
WARNING
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury.
Ground the equipment and the object being sprayed. Refer to Grounding on page 5.
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.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed.
Keep the spray area free of debris, including solvent, rags, and gasoline.
Electrically disconnect all equipment in the spray area.
Extinguish all open flames or pilot lights in the spray area.
Do not smoke in the spray area.
Do not turn on or off any light switch in the spray area while operating or if fumes are present.
Do not operate a gasoline engine in the spray area.
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
Know the specific hazards of the fluid you are using.
Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
4 307932
Installation
General Information
NOTE: Reference numbers and letters in parentheses
in the text refer to the callouts in the figures and the
parts drawing.
NOTE: Always use Genuine Graco Parts and Accessories, available from your Graco distributor. Refer to
the Product Data Sheet for your pump, Form No.
305791. If you supply your own accessories, be sure
they are adequately sized and pressure rated for your
system.
NOTE: Fig. 2 is only a guide for selecting and installing
system components and accessories. Contact your
Graco distributor for assistance in designing a system
to suit your particular needs.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
Before operating the pump, ground the
system as explained below. Also read
the section FIRE OR EXPLOSION HAZ-
ARD on page 4.
1. Pump: use a ground wire and clamp (supplied).
See Fig. 1. Loosen the grounding lug locknut (W)
and washer (X). Insert one end of a 1.5 mm (12
ga) minimum ground wire (45) into the slot in lug
(Z) and tighten the locknut securely. Connect the
other end of the wire to a true earth ground.
W
X
45
Z
0864
Fig. 1
2. Air and fluid hoses: use only electrically conductive
hoses.
3. Heaters, if used: refer to Viscon HP Heater manual, 309524.
4. Air compressor: follow manufacturer’s recommendations.
5. Spray gun: ground through connection to a properly grounded fluid hose and pump.
6. Fluid supply container: follow your local code.
7. Object being sprayed: follow your local code.
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 continuity.
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.
5307932
Installation
Supplied Components
Refer to Fig. 2 for a typical installation of an airless
system.
WARNING
A red-handled bleed-type master air valve (14) and
a fluid drain valve (7) are supplied in your system.
These accessories help reduce the risk of serious
injury, including fluid injection and splashing of fluid
in the eyes or on the skin, and injury from moving
parts if you are adjusting or repairing the pump.
The red-handled bleed-type master air valve relieves air trapped between this valve and the pump
after the air is shut off. Trapped air can cause the
pump to cycle unexpectedly. Locate the valve close
to the pump.
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.
The red-handled bleed-type master air valve
(14) is required in your system to relieve air trapped
between it and the air motor when the valve is
closed (see the WARNING above). Be sure the
bleed valve is easily accessible from the pump, and
is located downstream from the air regulator.
System Accessories
Air and Fluid Hoses
Be sure all air hoses (A) and fluid hoses (G) are properly sized and pressure-rated for your system. Use
only electrically conductive hoses.
1. Connect one end of the fluid line (G) to the filter
outlet swivel. Connect a fluid hose to each gun (H).
Install a fluid shutoff valve (J) at each gun drop.
Do not install the spray tip in the gun yet.
2. Close the red-handled bleed valve (14) and air
regulator (8). Connect the air hose (A) to the
swivel inlet of the air manifold (15).
Air Line Accessories
1. Install an air line filter (B) in the main air line, to
remove harmful dirt and moisture from the compressed air supply.
The air regulator (8) controls pump speed and
outlet pressure by adjusting the air pressure to the
pump. Locate the regulator close to the pump, but
upstream from the red-handled bleed-type master
air valve (14).
The air manifold (15) has a swivel air inlet. It
mounts to the cart, and provides ports for connecting lines to air-powered accessories.
The fluid filter (4) includes a 60 mesh (250 mi-
cron) stainless steel element to filter particles from
the fluid as it leaves the pump.
The fluid drain valve (7) is required in your sys-
tem to relieve fluid pressure in the hose and gun
(see the WARNING above).
The suction hose (24) and tube (25) allow the
pump to draw fluid from a 200 liter (55 gallon)
drum.
2. Install a second bleed valve (C) in the main air
line, to isolate the accessories for servicing.
3. Install a drain valve (D) at the bottom of each air
line drop, to drain off moisture.
4. To provide automatic lubrication of the air motor,
install an air line lubricator (E) downstream from
the red-handled bleed-type master air valve (14).
5. Install a pump runaway valve (F). The runaway
valve will automatically shut off the air to the pump
if the pump starts running too fast. A pump that
runs too fast can be seriously damaged.
6 307932
Installation
KEY
SUPPLIED COMPONENTS
1 Pump
2 Pump Wall Bracket
4 Fluid Filter
7 Fluid Drain Valve (required)
8 Pump Air Regulator
14 Red Handled Bleed-Type Master Air Valve (required, for pump)
15 Air Manifold
24 Suction Hose
25 Suction Tube
45 Ground Wire (required; see page 5 for installation instructions)
ACCESSORIES YOU MUST SUPPLY
A Electrically Conductive Air Hose
B Air Line Filter
C Bleed-Type Master Air Valve (for accessories)
D Air Line Drain Valve
E Air Line Lubricator
F Pump Runaway Valve
G Electrically Conductive Fluid Line
H Airless Spray Gun
J Fluid Shutoff Valve
B
C
Model 245187 Shown
2
45
1
G
H
J
H
J
E
A
14
8
F
15
D
4
Fig. 2
25
24
7
G
G
01763A
7307932
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