Graco Husky 2000 Operation manual

Instructions–Parts List
308703G
ENG
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Huskyt750 and Huskyt2000
Surge Suppressors
For control of pressure fluctuations and acceleration loss,
preventing cavitation. For professional use only.
120 psi (0.8 MPa, 8 bar) Maximum Air Input Pressure
120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure
See the Model Numbers on page 12.
Model 239088 Model 239096Model 239095 Model 239126Model 239091
06887 06891 06888 06892 06894

2 308703
Table of Contents
Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model Numbers 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Matrix 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Drawings 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Standard Warranty 18. . . . . . . . . . . . . . . . . . . . . .
Graco Information 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
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.
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated component in your system. This
equipment has a 120 psi (0.8 MPa, 8 bar) maximum working pressure and 120 psi (0.8 MPa,
8 bar) maximum incoming air pressure.
DSolvent Compatibility:
– Use fluids and solvents which are compatible with the equipment wetted parts.
– Use only compatible solvents to clean all plastic parts. Many solvents can degrade plastic
parts to the point where they could fail.
Refer to the Technical Data section of all equipment manuals. Read the fluid and solvent
manufacturer’s warnings.
DDo not use hoses to pull equipment.
DDo not lift pressurized equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.
DDo not operate outside the minimum and maximum operating temperature of your surge
suppressor unit. See Minimum and Maximum Operating Temperatures on page 7.

308703 3
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.
DKnow the specific hazards of the fluid you are using.
DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
DAlways wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
DPipe and dispose of the exhaust air safely, away from people, animals, and food handling areas. If
the diaphragm fails, the fluid is exhausted along with the air.
DNever use an acetal pump to pump acids. Take precautions to avoid acid or acid fumes from
contacting the pump housing exterior. Stainless steel parts will be damaged by exposure to acid
spills and fumes.
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.
DCharge the surge suppressor with compressed air or nitrogen only. Do not use oxygen. Such
use could result in an explosion.
DNever pump flammable fluids with polypropylene units.
DGround the equipment. Refer to Grounding on pages 4 and 5.
DNever use a polypropylene pump or surge suppressor with non-conductive flammable fluids as
specified by your local fire protection code. Refer to Grounding on pages 4 and 5 for additional
information. Consult your fluid supplier to determine the conductivity or resistivity of your fluid.
DIf there is any static sparking or you feel an electric shock while using this equipment, stop pump-
ing immediately. Do not use the equipment until you identify and correct the problem.
DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being pumped.
DPipe and dispose of the exhaust air safely, away from all sources of ignition.
DKeep the work area free of debris, including solvent, rags, and gasoline.
DElectrically disconnect all equipment in the work area.
DExtinguish all open flames or pilot lights in the work area.
DDo not smoke in the work area.
DDo not turn on or off any light switch in the work area while operating or if fumes are present.
DDo not operate a gasoline engine in the work area.

4 308703
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
When pumping flammable fluids, the
surge suppressor must be grounded.
Before pumping, ground the system as
explained below. Also read the section
FIRE OR EXPLOSION HAZARD on
page 3.
Polypropylene surge suppressors are not
conductive. Attaching the ground wire to the
grounding lug grounds only the clamp or flange
(see Fig. 1). When pumping conductive flammable
fluids, always ground the entire fluid system by
making sure the fluid has an electrical path to a
true-earth ground.
To reduce the risk of static sparking, ground the surge
suppressor and all other equipment in the pumping
area. Check your local electrical code for detailed
grounding instructions for your area and type of equip-
ment. Ground all of this equipment:
DSurge suppressor: Attach a ground wire to the
grounding lug (2) as shown in Fig. 1. Connect the
clamp end of the ground wire to a true earth
ground. To order a ground wire and clamp, order
Part No. 222011.
NOTE: To connect the ground wire to the surge
suppressor, first remove the copper connector from
the non-clamp end of the ground wire and discard
it, then push the bare wire through the grounding
lug on the surge suppressor.
DFluid supply container: Follow your local code.
Fig. 1
23 2
NOTE: When pumping conductive flammable fluids
with a surge suppressor, always ground the entire
fluid system. See the WARNING at left. Fig. 2
shows recommended methods of grounding fluid
containers during filling. These are only guides;
contact your Graco distributor for assistance in
grounding your system.
DAir compressor: Follow the manufacturer’s
recommendations.
DSolvent pails used when flushing: Follow your local
code. Use only grounded metal pails, which are
conductive. Do not place the pail on a
non-conductive surface, such as paper or
cardboard, which interrupts the grounding
continuity.

308703 5
Installation
A Husky pump
B Husky surge suppressor
H Fluid drain valve (required)
S Dispense valve
T Fluid drain line
W Surge suppressor ground wire (required)
See page 4 for installation instructions.
Y Air motor ground wire (required)
Z Container ground wire (required)
Z
S
Fig. 2
1
2
Grounding a Surge Suppressor
Hose must be conductive.
Dispense valve nozzle must be in
contact with the container.
A
H
T
Y
B
1
2
W
06895
Z
air supply
connection
A
H
Y
B
1
2
W
06896A
T
air supply
connection
S
Z
Z

6 308703
Installation
The installations in Fig. 2 are guides for selecting and installing system components. Contact your Graco distributor
for assistance in planning a system to suit your needs.
Mounting Automatic and Manual Models
Be sure the mounting surface can support the weight of the pump, surge suppressor, hoses, and accessories, and
the stress caused during operation.
DMount the surge suppressor as close to the pump discharge as possible and upstream of equipment such as
valves, meters, filters, and so on. The surge suppressor should be installed within 10 pipe diameters of the
pump discharge.
DIf you use a flexible connector from the pump to the piping system, the surge suppressor should be mounted to
the pump discharge manifold, and the flexible connector should be attached to the surge suppressor tee and
system piping.
DBecause pressure is equal in all directions, the surge suppressor can be installed in any position, but the vertical
position shown in Fig. 2 is recommended for better draining. Fluids with high specific gravity or high viscosity,
settling of heavy material, and possible air entrapment further limit the mounting positions other than those
shown in Fig. 2.
NOTE: When you mount a plastic surge suppressor, do not overtighten by using a large pipe wrench near the
threads of the fluid inlet. The housing may crack if tightened too much. Hand tightening is recommended.
Connecting Automatic Models
DConnect the 1/4-in air supply hose to the 1/4 npt
connection on the top of the surge suppressor.
DThe air pressure to the surge suppressor must be
greater than or equal to the pump discharge and/or
system pressure. For equal air pressure, you can
use a tee in the pump’s air supply line to run an air
line to the surge suppressor.
DFor models with elastomer bladders, the tee must
be located in the pump’s air supply line before any
pump controller or instrumentation such as the
filter, regulator, or pump control valve.
DFor models with PTFE bellows, the tee must be
located in the pump’s air supply line after any pump
controller or instrumentation such as the filter,
regulator, or pump control valve.
Connecting Manual Models
DConnect the 1/4-in air supply hose to the brass
one-way check valve on the top of the surge sup-
pressor.
DThe air pressure to the surge suppressor must be
greater than or equal to the pump discharge and/or
system pressure. For equal air pressure, you can
use a tee in the pump’s air supply line to run an air
line to the surge suppressor.
DThe tee must be located in the pump’s air supply
line before any pump controller or instrumentation
such as the filter, regulator, or pump control valve.

308703 7
Operation
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious
injury from pressurized fluid, accidental spray from
the dispensing device, or splashing fluid, follow this
procedure whenever you
DAre instructed to relieve pressure
DStop pumping
DCheck, clean, or service any system equipment
DInstall or clean fluid nozzles
1. Stop pumping, and shut off the air to the pump.
2. Relieve pressure in the surge suppressor as
follows:
DFor automatic surge suppressors, remove the
air pressure gauge, and allow any residual air
pressure to escape.
DFor manual surge suppressors, adjust the
regulator to relieve the air pressure by dialing
down the pressure.
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.
DRead TOXIC FLUID HAZARD on page 3.
DUse fluids and solvents which are compatible
with the equipment wetted parts. Refer to the
Technical Data section of all equipment manu-
als. Read the fluid and solvent manufacturer’s
warnings.
WARNING
FIRE AND EXPLOSION HAZARD
Charge the surge suppressor with
compressed air or nitrogen only. Do not
use oxygen.
Never pump flammable fluids with
polypropylene units.
Charging the surge suppressor with oxygen or
pumping flammable fluids with polypropylene units
could cause a fire or an explosion.
Minimum and Maximum Operating
Temperatures
Find the minimum and maximum operating tempera-
tures for your surge suppressor unit in the list below.
These temperature limits are stated at zero gauge
pressure.
Automatic Husky 750
239095 10_to 180_F (–12_to 82_C)
239096 32_to 175_F (0_to 79_C)
239121 40_to 175_F (4_to 79_C)
239122 32_to 175_F (0_to 79_C)
239123 40_to 220_F (4_to 104_C)
239124 –10_to 350_F (–23_to 176_C)
Automatic Husky 2000
239092 32_to 175_F (0_to 79_C)
239093 32_to 175_F (0_to 79_C)
239126 40_to 175_F (4_to 79_C)
239127 32_to 175_F (0_to 79_C)
239128 40_to 175_F (4_to 79_C)
Manual Husky 750
239090 10_to 180_F (–12_to 82_C)
239091 32_to 175_F (0_to 79_C)
239129 40_to 175_F (4_to 79_C)
239130 32_to 175_F (0_to 79_C)
239131 40_to 220_F (4_to 104_C)
239132 –10_to 350_F (–23_to 176_C)
Manual Husky 2000
239087 32_to 175_F (0_to 79_C)
239088 32_to 175_F (0_to 79_C)
239134 40_to 175_F (4_to 79_C)
239135 32_to 175_F (0_to 79_C)
239136 40_to 175_F (4_to 79_C)

8 308703
Operation
Charging and Startup
For optimum performance, surge suppressors should be charged to a pressure 2 to 10 psi (0.01 to 0.07 MPa,
0.1 to 0.7 bar) lower than system pressure.
Automatic Models
CAUTION
Automatic surge suppressors must have the air
supply connected before you start pumping. Failure
to do so could result in the internal air valve
puncturing or rupturing the bladder.
The air pressure gauge (1) (See Parts Drawings on
pages 14 and 15) on automatic surge suppressors
remains at zero pressure even after the air line is
connected, because the surge suppressor only allows
air into the air chamber when it is required to dampen
pulsation. After the air supply line is attached to the
one-way check valve (8) and air is available, you can
start the pump. No further adjustments are necessary.
NOTE: Automatic surge suppressors are not recom-
mended for use as suction stabilizers at the pump inlet
or as a surge suppressor at a quick-closing valve.
Adjustable surge suppressors should be used for such
applications.
Manual Models
CAUTION
Manual surge suppressors must be charged before
you start pumping. Failure to do so could result in
the internal air valve puncturing or rupturing the
bladder.
Before you start the pump, charge the surge suppres-
sor with air line pressure.
1. Start the pump to generate system pressure.
2. As pressure increases to approach working pres-
sure, gradually decrease the regulated air supply
pressure into the surge suppressor by adjusting
the regulator (4) (See Parts Drawings on pages
14 and 15).
3. Wait for up to one minute to allow the system to
respond to the adjustment before you make any
further adjustments. Generally, pulsation is most
effectively minimized when the air supply to the
surge suppressor is regulated to 2 to 10 psi (0.01
to 0.07 MPa, 0.1 to 0.7 bar) lower than system
pressure.

308703 9
Troubleshooting
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.
Relieve the pressure before checking or servicing the
equipment.
Check all possible problems and causes before disas-
sembling the pump.
PROBLEM CAUSE SOLUTION
Surge suppressor does not hold
pressure. Manual or automatic models:
–Leaking threaded connections
–Loose flange bolts or clamp
–Failed bladder or bellows
–Blocked air line to unit
–Check all threads for leaks.
–See Torque Table, page 11.
–See Bladder Failure, page 10.
–Use 1/4-in air line.
Automatic models only:
–One-way valve at air inlet is
installed backwards.
–Gauge shows no pressure,
and pump is not running.
–Arrow should point toward surge
suppressor.
–Pressure does not register on
gauge until pump is started.
Manual models only:
–Faulty regulator –Check regulator.
Dampening effect of surge
suppressor is not sufficient. Surge suppressor installed incorrect
distance from pump Surge suppressor should be installed within 10 pipe diameters of
pump discharge.
Improper pressure charge See Charging and Startup,
page 8. Surge suppressor
pressure should be 2 to 10 psi (0.01
to 0.07 MPa, 0.1 to 0.7 bar) lower
than system pressure.
Surge suppressor does not hold
pressure charge. See surge suppressor does not hold pressure in PROBLEM column.
Failed bladder or bellows See Bladder Failure, page 10.
Surge suppressor too small for
pump Install larger surge suppressor.
Automatic models only:
Plugged automatic valve Remove pressure from surge
suppressor, and check automatic
valve for proper operation as
follows:
1. Leave air line attached to top
half of surge suppressor.
2. Fill top of surge suppressor
with enough water to cover
automatic valve.
There should be no bubbles.
3. Dump water out, and gently
push automatic valve.
Air should flow.
4. Replace automatic valve if
it is defective.
There is leaking around surge
suppressor fluid inlet. PTFE sealing tape or paste is needed on threads of fluid inlet. Apply PTFE tape or paste to threads. Do not overtighten plastic
models. Hand tightening is
recommended.

10 308703
Service
Bladder Failure
Normal life for bladders can be from a few months to
several years, depending upon the harshness of the
application. Below are common reasons for failed
bladders or bellows:
DChemical attack: Check chemical compatibility
charts. Consult your Graco distributor.
DCut bladder or bellows: Check for sharp objects
that may have been introduced into the surge
suppressor through pumped fluid.
DInsufficient compressed air charge in surge sup-
pressor during operation: See Charging and
Startup on page 8.
DSurge suppressor too small for the pump: An
undersized surge suppressor will have premature
bladder failure. Contact your Graco distributor for
assistance in ensuring that you have the correct
size surge suppressor.
Replacing Bladder or Bellows
1. Relieve the pressure.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 7.
2. Remove the clamp band, ring flange, or bolts.
3. Remove the top housing of the surge suppressor.
4. Remove the old bladder or bellows, and replace it
with the new bladder or bellows.
Make sure that you properly orient the parts:
DInstall rubber bladders with the concave side
facing the top housing, as shown in the Parts
Drawings on page 14.
DInstall PTFE bellows with the concave side
facing the bottom housing, as shown in Model
No. 239126 in the Parts Drawings on
page 15. Install the PTFE encapsulated fluo-
roelastomer o-rings on each side of the bel-
lows.
5. Replace the top housing of the surge suppressor.
6. Replace the clamp band, ring flange, or bolts, and
torque according to the torque specifications in the
Torque Table on page 11.