Graco TRITON 3D150 User Manual
Instructions/Parts List
®
Triton
3D150
Diaphragm Pump
Used to pump waterborne and solvent-based paints and catalysts.
Part No. 253704, Series B
3:1 Ratio Air-operated Double Diaphragm Pump, with BSPP Fittings
Part No. 253705, Series B
311688D
3:1 Ratio Air-operated Double Diaphragm Pump, with NPT Fittings
100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure
300 psi (2.1 MPa, 21 bar) Maximum Fluid Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2006, Graco Inc. is registered to I.S. EN ISO 9001
TI2125A
II 2 G
Contents
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General Information . . . . . . . . . . . . . . . . . . . . . . 5
Tightening Threaded Fasteners Before First Use 5
Mounting the Pump . . . . . . . . . . . . . . . . . . . . . . . 6
Air Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fluid Suction Line . . . . . . . . . . . . . . . . . . . . . . . . 7
Fluid Outlet Line . . . . . . . . . . . . . . . . . . . . . . . . . 7
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pressure Relief Procedure . . . . . . . . . . . . . . . . 10
Flushing the Pump Before First Use . . . . . . . . . 10
Starting and Adjusting the Pump . . . . . . . . . . . 10
Pump Shutdown . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Flushing and Storage . . . . . . . . . . . . . . . . . . . . 11
Tightening Threaded Connections . . . . . . . . . . 11
Preventive Maintenance Schedule . . . . . . . . . . 11
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Prepare the Pump for Repair . . . . . . . . . . . . . . . 13
General Repair Notes . . . . . . . . . . . . . . . . . . . . 13
Fault Indications . . . . . . . . . . . . . . . . . . . . . . . . 13
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Replace the Diaphragms . . . . . . . . . . . . . . . . . . 14
Repair the Air Valve . . . . . . . . . . . . . . . . . . . . . . 16
Repair the Shaft and Bearings . . . . . . . . . . . . . 18
Replace the Ball Check Valves . . . . . . . . . . . . . 20
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Performance Chart . . . . . . . . . . . . . . . . . . . . . . . . . 25
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 28
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 28
2 311688D
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
Warning
EQUIPMENT MISUSE HAZARD
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. Use only genuine Graco parts and accessories.
• 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 24 for the maximum working pressure of this equipment.
• Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the Techni-
cal 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 82°C (180°F) or below -40°C (-40°F).
• Wear hearing protection when operating this equipment.
• Comply with all applicable local, state, and national fire, electrical, and safety regulations.
PRESSURIZED EQUIPMENT HAZARD
Spray from the gun, hose leaks, or ruptured components can splash fluid in the eyes or on the skin and
cause serious injury.
• Do not point the gun at anyone or at any parts of the body.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure on page 10 whenever you are instructed to relieve pressure;
stop spraying; clean, check, or repair the equipment; and install or clean the spray nozzle.
• Tighten all fluid connections before operating the equipment.
• Check the hoses, tubes, and couplings daily. Replace worn, damaged, or loose parts immediately.
Permanently coupled hoses cannot be repaired; replace the entire hose.
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 9.
• If there is any static sparking or you feel an electric shock while using this equipment, stop the
equipment 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 work area free of debris, including solvent, rags, and gasoline.
• Eliminate all ignition sources such as pilot lights, cigarettes, and static arcs from plastic drop cloths.
Do not plug in or unplug power cords or turn lights on or off in the spray area.
311688D 3
Warnings
Warning
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.
• If a diaphragm fails, fluid is exhausted along with the air. When pumping hazardous fluids, place the
pump in an appropriate container to catch the fluid if a diaphragm ruptures.
MOVING PARTS HAZARD
Moving parts, such as the diaphragm shaft, can pinch or amputate your fingers.
• Before servicing the equipment, follow the Pressure Relief Procedure on page 10 to prevent the
equipment from starting unexpectedly.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
• Hearing protection
4 311688D
Installation
Installation
General Information
•FIG. 2 is only a guide for installing system compo-
nents and accessories. It is not an actual system
design. Contact your Graco distributor for assistance in designing a system to suit your particular
needs.
• Always use Genuine Graco Parts and Accessories,
available from your Graco distributor. If you supply
your own accessories, be sure they are adequately
sized and pressure-rated for your system.
• Reference numbers and letters in parentheses refer
to the reference numbers in the figures and the
parts list on page 22.
Tightening Threaded Fasteners
Before First Use
See the Repair section for torque specifications.
• After unpacking the pump and before using it for the
first time, check and retorque all diaphragm cover
bolts (38, 39).
• After the first day of operation, retorque the fasteners again.
• As a general guidline, retorque fasteners every two
months.
311688D 5
Installation
Mounting the Pump
• For ease of operation and service, mount the pump
so the air inlet, fluid inlet, and fluid outlet ports are
easily accessible.
• Mount the pump in a well-ventilated area with sufficient clearance on all sides for operator access and
servicing.
• The pump must be mounted horizontally as shown
in F
IG. 1. Be sure that the pump is level in all direc-
tions and that the cylinder housing (54) is positioned
on the bottom. See F
• The pump can be floor mounted or mounted on a
wall using mounting kit 246495.
• Be sure the mounting can support the weight of the
pump, hoses, and accessories as well as the stress
caused during operation. The pump has two mounting holes for 0.31 in. (8 mm) screws. See the
Dimension drawing on page 26.
IG. 1.
5. Mount the bracket with the pump attached to the
wall and tighten.
Hexagonal screw (2 required)
Compressed air
connection
Fluid
Inlet
Fluid
Outlet
Floor Mount
Hexagonal
screw
(2 required)
Cylinder
Housing (54)
TI2133A 2
Wall mount using kit 246495:
1. Use the bracket (15C022) as a template to drill 2
0.38 (9.6 mm) diameter holes in the wall.
2. Loosely attach bracket (15C022) to the wall with
anchors and screws (8 mm) long enough to prevent
the bracket from vibrating during operation.
3. Remove bracket from the wall and fasten it to the
pump using the 4 screws (116899) and 1 lock
washer (100028) included in the kit.
4. The lock washer must be used in the unpainted hole
to ensure proper grounding of the bracket.
Wall Mount
F
IG. 1. Mounting the Pump
Wall
Mount
Bracket
TI2469A
6 311688D
Installation
Air Line
1. Install the air line accessories as shown in FIG. 2.
Be sure the air line supplying the accessories is
grounded.
a. The fluid pressure can be controlled with either
an air regulator (F) to control the air into the
pump, or with a fluid regulator (H) to control the
fluid out of the pump.
b. Install a bleed-type master air valve (B) close to
the pump. This valve is required in your system
to relieve air trapped between it and the pump
when the valve is closed. Trapped air can cause
the pump to cycle unexpectedly which could
result in serious injury including splashing in the
eyes or on the skin, or injury from moving parts.
Be sure the bleed valve is easily accessible
from the pump, and is located downstream from
the air regulator.
c. Install a second air valve (E) upstream from all
air line accessories to isolate them during
cleaning and repair.
d. Install an air line filter (D) to remove contami-
nates such as dirt, moisture, and oil from the
compressed air supply.
2. The air valve does not require lubrication.
• For maximum suction lift (wet and dry) information,
see Technical Data on page 24.
• Use an agitator to prevent fluid from settling out.
Part number 245081 Agitator Kit (accessory) is
available.
Fluid Outlet Line
1. Use electrically conductive fluid hoses (P). See FIG.
2. Screw the fluid fitting into the pump outlet (N)
snugly while supporting the outlet with a wrench.
See Technical Data on page 24 to determine the
fluid outlet size of your pump.
2. Install a fluid regulator (H) at the pump fluid outlet to
control fluid pressure, if desired. See Air Line step
1a for an alternative method to control pressure.
3. Install a fluid drain valve (J) near the fluid outlet.
A fluid drain (J) valve is required in your system to
relieve pressure in the hose if it is plugged. The drain
valve reduces the risk of serious injury, including
splashing in the eyes or on the skin, or contamination
from hazardous fluids when relieving pressure. Install
the valve close to the pump fluid outlet. To use the
valve as a circulation valve, connect a tube (K)
between the valve and pail.
3. Install a grounded, flexible air hose between the
accessories and the pump air inlet. See Technical
Data on page 24 to determine the air inlet size of
your pump. Use a minimum 1/2 in.(13 mm) ID air
hose.
Fluid Suction Line
•See Technical Data on page 24 to determine the
fluid inlet size of your pump.
• Use conductive hoses (see F
tion line into the pump inlet snugly while supporting
the inlet with a wrench. Use a compatible liquid
thread sealant on connections to prevent air from
entering the fluid line.
311688D 7
IG. 2). Screw the suc-
Some systems may require installation of a pressure
relief valve at the pump outlet to prevent overpressurization and rupture of the pump or hose.
Thermal expansion of fluid in the outlet line can cause
overpressurization. This can occur when using long
fluid lines exposed to sunlight or ambient heat, or
when pumping from a cool to a warm area (for example, from an underground tank).
Overpressurization can also occur if the pump is
being used to feed fluid to a piston pump and the
intake valve of the piston pump does not close, causing fluid to back up in the outlet line.
CAUTION
Key:
A TRITON 3D150 Pump
B Bleed-type master air valve
(required for pump)
C Air supply line
D Air line filter
E Air line shutoff valve
F Pump air regulator
G Gun air regulator (used in
spray system only)
H Fluid pressure regulator
(used in spray system
only)
J Drain/circulation valve
KDrain tube
L Suction tube
M Pump fluid inlet
N Pump fluid outlet
P Fluid hose (shown
connected to gun in spray
system)
R Gun air hose (used in
spray system only)
S Spray gun (used in spray
system only)
T Pump air inlet
U Agitator (used in spray
system only)
W Ground wire
Installation
S
G
R
B
C
T
J
H
E
F
D
P
W
M
L
K
A
N
W
U
FIG. 2. Typical Installation
TI2373A
T
K
J
L
M
A
N
H
TI2127A
8 311688D
Installation
Grounding
Before operating the pump, ground the system as
explained below. Read the warnings on page 3.
Ground all of this equipment:
• Pump: use a ground wire and clamp. See F
Loosen the grounding screw (X). Insert one end of a
12 ga (1.5 mm
2
) minimum ground wire (Y) under the
clamp and tighten the screw securely. Connect the
other end of the wire to a true earth ground. For a
ground wire and clamp, order Part No. 222011.
• Air and fluid hoses: Use only electrically conductive
hoses.
• Air compressor: Follow manufacturer’s recommendations.
• Fluid supply drum: Follow your local code.
IG. 3.
• All fluid pails used when flushing: Follow your local
code. Use only conductive metal pails placed on a
grounded surface. Do not place the pail on a nonconductive surface, such as paper or cardboard,
which interrupts the grounding continuity.
X
TI2126A
F
IG. 3. Grounding the Pump
Y
311688D 9
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