Graco Husky 3300 Use and care manual

Repair/Parts
Husky®3300 Air-Operated
Diaphragm Pump 3A0411A
EN
Heavy-duty 3-inch pump with large flow paths for fluid transfer applications, including
high-viscosity materials. For professional use only.
See page 4 for model information, including approvals.
125 psi (0.86 MPa, 8.6 bar) Maximum Working Pressure, Aluminum or Stainless Steel Pumps
with Aluminum Center Section
100 psi (0.7 MPa, 6.9 bar) Maximum Working Pressure, Polypropylene or Stainless Steel Pumps
with Polypropylene Center Section
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
ti16556a
ti16561a
Polypropylene
Aluminum
Stainless Steel
ti17454a

Related Manuals
23A0411A
Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
To Order a New Pump . . . . . . . . . . . . . . . . . . . . . . . 3
To Order Replacement Parts . . . . . . . . . . . . . . . . . 3
Distributor Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Configuration Number Matrix . . . . . . . . . . . . . . . . . 4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Pressure Relief Procedure . . . . . . . . . . . . . . . . 10
Repair or Replace Air Valve . . . . . . . . . . . . . . . 10
Check Valve Repair . . . . . . . . . . . . . . . . . . . . . 12
Diaphragms and Center Section . . . . . . . . . . . . 14
Torque Instructions . . . . . . . . . . . . . . . . . . . . . . 20
Parts, 3300P, Polypropylene . . . . . . . . . . . . . . . . 22
Parts, 3300A, Aluminum . . . . . . . . . . . . . . . . . . . . 23
Parts, 3300S, Stainless Steel . . . . . . . . . . . . . . . . 24
Parts/Kits Quick Reference . . . . . . . . . . . . . . . . . . 25
Center Section . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Air Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Fluid Covers and Manifolds . . . . . . . . . . . . . . . . 32
Seats and Check Balls . . . . . . . . . . . . . . . . . . . 34
Diaphragms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Manifold and Seat Seals . . . . . . . . . . . . . . . . . . 37
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Graco Standard Husky Pump Warranty . . . . . . . . 42
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 42
Related Manuals
Manual Description
3A0410 Husky 3300 Air-Operated Diaphragm Pump, Operation

To Order a New Pump
3A0411A 3
To Order a New Pump
Call your distributor.
OR
Go to www.gracohusky.com,and use the Husky Pump Selector in the Toolbox.
To Order Replacement Parts
Call your distributor.
OR
Use this Manual: Refer to pages 22-24 for the main Parts illustrations, and page 25 for the Parts/Kits Quick Refer-
ence. Follow the page references on these pages for further ordering information, as needed.
Distributor Note
Use the 20-digit number from the ID plate on the pump to order the necessary kits. If you have only the Graco 6-digit
part number, use the Husky Pump Selector at www.gracohusky.com to find the corresponding Graco 20-digit
part number.

Configuration Number Matrix
43A0411A
Configuration Number Matrix
Check the identification plate (ID) for the 20-digit Configuration Number
of your pump. Use the following matrix to define the components of your
pump.
Sample Configuration Number: 3300A-A01AA1TPACTPBN
3300A A01A A1 TP AC TP BN
Pump
Model
Center
Section and
Air Valve
Fluid
Covers and
Manifolds
Seats Balls Diaphragms Manifold
and Seat
Seals
&21),*85$7,21123$5712 6(5,$/12
6(5,(6'$7(&2'( 0$;:3536,EDU
Pump Configuration
Number
ti17770a
Pump
Center Section and Air
Valve Material For Use With Fluid Covers and Manifolds
3300A★
Aluminum
Aluminum A01A Standard Diaphragms A1 Aluminum, center flange, npt
A01E Optional FKM seals with
Standard Diaphragms
A2 Aluminum, center flange, bspt
3300P†
Polypropylene
A01G Overmolded Diaphragms P1 Polypropylene, center flange
Polypropylene†P01A Standard Diaphragms S1 Stainless steel, center flange, npt
3300S★
Stainless Steel
P01G Overmolded Diaphragms S2 Stainless steel, center flange, bspt
★3300A (aluminum) and 3300S (stainless steel) pumps with aluminum center sections are certified:
†Pumps with polypropylene fluid or center sections are not ATEX certified.
II 2 GD c IIC T4
Check Valve Seats Check Valve Balls Diaphragm Manifold and Seat Seals
AC Acetal AC Acetal BN Buna-N --- Models with Buna-N,
FKM Fluoroelastomer
or TPE seats do not use
o-rings.
AL Aluminum BN Buna-N CO Polychloroprene
Overmolded
BN Buna
BN Buna-N CR Polychloroprene
Standard
CR Polychloroprene PT PTFE
FK FKM Fluoroelasto-
mer
CW Polychloroprene
Weighted
FK FKM Fluoroelastomer
GE Geolast®FK FKM Fluoroelasto-
mer
GE Geolast
PP Polypropylene GE Geolast PO PTFE Overmolded
SP Santoprene®PT PTFE PT PTFE/Santoprene
Two-Piece
SS 316 Stainless
Steel
SP Santoprene SP Santoprene
TP TPE TP TPE TP TPE

Warnings
3A0411A 5
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. When
these symbols appear in the body of this manual, refer back to these Warnings. Additional, product-specific warnings
may be found throughout the body of this manual where applicable.
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help
prevent fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail. Do not use pail liners unless they
are antistatic or conductive.
•Stop operation immediately if static sparking occurs or you feel a shock.Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
• Route exhaust away from all ignition sources. If diaphragm ruptures, fluid may be exhausted with air.
Static charge may build up on plastic parts during cleaning and could discharge and ignite flammable
vapors. To help prevent fire and explosion:
• Clean plastic parts only in a well ventilated area.
• Do not clean with a dry cloth.
• Do not operate electrostatic guns in equipment work area.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and cause
serious injury.
• Follow the Pressure Relief Procedure when you stop spraying/dispensing and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

Warnings
63A0411A
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure.
• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manu-
facturer’s replacement parts only.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create
safety hazards.
• Make sure all equipment is rated and approved for the environment in which you are using it.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
THERMAL EXPANSION HAZARD
Fluids subjected to heat in confined spaces, including hoses, can create a rapid rise in pressure due to
the thermal expansion. Over-pressurization can result in equipment rupture and serious injury.
• Open a valve to relieve the fluid expansion during heating.
• Replace hoses proactively at regular intervals based on your operating conditions.
PRESSURIZED ALUMINUM PARTS HAZARD
Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious
chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious
injury, or property damage.
• Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents.
• Many other fluids may contain chemicals that can react with aluminum. Contact your material sup-
plier for compatibility.
PLASTIC PARTS CLEANING SOLVENT HAZARD
Many solvents can degrade plastic parts and cause them to fail, which could cause serious injury or
property damage.
• Use only compatible water-based solvents to clean plastic structural or pressure-containing parts.
•SeeTechnical Data in this and all other equipment instruction manuals. Read fluid and solvent
manufacturer’s MSDSs and recommendations.
WARNING

Warnings
3A0411A 7
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Route exhaust away from work area. If diaphragm ruptures, fluid may be exhausted into the air.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns:
• Do not touch hot fluid or equipment.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the work area to help prevent serious injury, including
eye injury, hearing loss, inhalation of toxic fumes, and burns. This equipment includes but is not limited
to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
WARNING

Troubleshooting
83A0411A
Troubleshooting
Problem Cause Solution
Pump cycles but will not prime. Pump is running too fast, causing
cavitation before prime.
Reduce air inlet pressure.
Check valve ball severely worn or
wedged in seat or manifold.
Replace ball and seat. See page 12.
Seat severely worn. Replace ball and seat. See page 12.
Outlet or inlet clogged. Unclog.
Inlet or outlet valve closed. Open.
Inlet fittings or manifolds loose. Tighten.
Manifold o-rings damaged. Replace o-rings. See page 12.
Pump cycles at stall or fails to hold
pressure at stall.
Worn check valve balls, seats, or
o-rings.
Replace. See page 12.
Pump will not cycle, or cycles once
and stops.
Air valve is stuck or dirty. Disassemble and clean air valve.
See page 10. Use filtered air.
Check valve ball severely worn and
wedged in seat or manifold.
Replace ball and seat. See page 12.
Pilot valve worn, damaged, or
plugged.
Replace pilot valve. See page 14.
Air valve gasket damaged. Replace gasket. See page 10.
Dispensing valve clogged. Relieve pressure and clear valve.
Pump operates erratically. Clogged suction line. Inspect; clear.
Sticky or leaking check valve balls. Clean or replace. See page 12.
Diaphragm (or backup) ruptured. Replace. See page 14.
Restricted exhaust. Remove restriction.
Pilot valves damaged or worn. Replace pilot valves. See page 14.
Air valve damaged. Replace air valve. See page 10.
Air valve gasket damaged. Replace air valve gasket. See
page 10.
Air supply erratic. Repair air supply.
Exhaust muffler icing. Use drier air supply..
Air bubbles in fluid. Suction line is loose. Tighten.
Diaphragm (or backup) ruptured. Replace. See page 14.
Loose manifolds, damaged seats or
o-rings.
Tighten manifold bolts or replace
seats or o-rings. See page 12.
Diaphragm shaft bolt o-ring dam-
aged.
Replace o-ring.
Pump cavitation. Reduce pump speed or suction lift.
Loose diaphragm shaft bolt. Tighten.

Troubleshooting
3A0411A 9
Exhaust air contains fluid being
pumped.
Diaphragm (or backup) ruptured. Replace. See page 14.
Loose diaphragm shaft bolt. Tighten or replace. See page 14.
Diaphragm shaft bolt o-ring dam-
aged.
Replace o-ring. See page 14.
Moisture in exhaust air. High inlet air humidity. Use drier air supply.
Pump exhausts excessive air at stall. Worn air valve cup or plate. Replace cup and plate. See page 10.
Damaged air valve gasket. Replace gasket. See page 10.
Damaged pilot valve. Replace pilot valves. See page 14.
Worn shaft seals or bearings. Replace shaft seals or bearings. See
page 14.
Pump leaks air externally. Air valve or fluid cover screws loose. Tighten.
Diaphragm damaged. Replace diaphragm. See page 14.
Air valve gasket damaged. Replace gasket. See page 10.
Air cover gasket damaged. Replace gasket. See page 14.
Pump leaks fluid externally from
joints.
Loose manifold screws or fluid cover
screws.
Tighten manifold screws or fluid
cover screws. See page 20.
Manifold o-rings worn out. Replace o-rings. See page 12.
Problem Cause Solution

Repair
10 3A0411A
Repair
Pressure Relief Procedure
Follow the Pressure Relief Procedure when-
ever you see this symbol.
1. Shut off the air supply to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve fluid pressure.
Have a container ready to catch the drainage.
Repair or Replace Air Valve
Replace Complete Air Valve
1. Stop the pump. Relieve the pressure. See Pressure
Relief Procedure in previous section.
2. Disconnect the air line to the motor.
3. Remove screws (104, metal pumps) or nuts (116,
plastic pumps). Remove the air valve and gasket
(113).
4. To repair the air valve, go to Disassemble the Air
Valve, step 1, in next section. To install a replace-
ment air valve, continue with step 5.
5. Align the new air valve gasket (113*) on the center
housing, then attach the air valve. See Torque
Instructions, page 20.
6. Reconnect the air line to the motor.
Replace Seals or Rebuild Air Valve
NOTE: Repair kits are available. See page 31 to order
the correct kit(s) for your pump. Air Valve Seal Kit parts
are marked with a †. Air Valve Repair Kit parts are
marked with a ◆. Air Valve End Cap Kit parts are
marked with a ✠.
Disassemble the Air Valve
1. Perform steps 1-3 under Replace Complete Air
Valve, page 10.
2. See FIG. 2. Use a Torx screwdriver (T8 for alumi-
num centers, T10 for plastic centers) to remove two
screws (209). Remove the valve plate (205),
cup assembly (212-214), spring (211), and detent
assembly (203).
3. Pull the cup (213) off of the base (212). Remove the
o-ring (214) from the cup.
4. See FIG. 2. Remove the retaining ring (210) from
each end of the air valve. Use the piston (202) to
push the end cap (207) out of one end. Remove the
u-cup seal (208). Pull the piston out the end and
remove the other u-cup seal (208). Remove the
other end cap (207) and the end cap o-rings (206).
5. Remove the detent cam (204) from the air valve
housing (201).
This equipment stays pressurized until pressure is
relieved manually. To help prevent serious injury from
pressurized fluid, such as splashing in the eyes or on
skin, follow the Pressure Relief Procedure whenever
you stop pumping and before you clean, check, or ser-
vice the equipment.