Graco Inc Marine Sanitation System 308639L User Manual

Instructions – Parts List  
ALUMINUM  
Huskyt3275 Air–Operated  
308639L  
ENG  
Diaphragm Pump  
3–inch pump for fluid transfer applications. For professional use only.  
120 psi (0.8 MPa, 8 bar) Maximum Incoming Air Pressure  
120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure  
* Part No. DK3XXX  
Part No. 232505 Private–Label Aluminum 3275 Pump (See page 20.)  
Part No. 24D619 Private–Label Aluminum 3275 Pump (See page 20.)  
* This model is  
certified.  
US and Foreign Patents Pending  
Important Safety Instructions  
Read all warning and instructions in this  
manual. Save these instructions.  
Refer to the Pump Matrix on page 20 to  
determine the Part No. of your pump.  
Contents  
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Pump Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Repair Kit Matrix . . . . . . . . . . . . . . . . . . . . . . . . 21  
Parts Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . 22  
Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 24  
Torque Sequence . . . . . . . . . . . . . . . . . . . . . . . 25  
Dimensional Drawings . . . . . . . . . . . . . . . . . . . 26  
Performance Charts . . . . . . . . . . . . . . . . . . . . . 27  
Graco Standard Warranty . . . . . . . . . . . . . . . . 30  
Graco Information . . . . . . . . . . . . . . . . . . . . . . . 30  
06317  
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WARNING  
HAZARDOUS FLUIDS  
Improper handling of hazardous fluids or inhaling toxic vapors can cause extremely serious injury or  
death from to splashing in the eyes, ingestion, or bodily contamination. Observe all the following  
precautions when handling known or potentially hazardous fluids.  
D Know what fluid you are pumping and its specific hazards. Take precautions to avoid a toxic fluid  
spill.  
D Always wear appropriate clothing and equipment, such as eye protection and breathing appara-  
tus, to protect yourself.  
D Store hazardous fluid in an appropriate, approved container. Dispose of it according to all Local,  
State and Federal guidelines for hazardous fluids.  
D Secure the fluid outlet hose tightly into the receiving container to prevent it from coming loose  
and improperly draining the fluid.  
D Pipe 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. See Air Exhaust Ventilation on  
page 7.  
FIRE AND EXPLOSION HAZARD  
Static electricity is created by the flow of fluid through the pump and hose. If the equipment is not  
properly grounded, sparking may occur. Sparks can ignite fumes from solvents and the fluid being  
pumped, dust particles, and other flammable substances, whether you are pumping indoors or  
outdoors, and can cause a fire or explosion and serious injury and property damage.  
D To reduce the risk of static sparking, ground the pump and all other equipment used or located in  
the work area. Check your local electrical code for detailed grounding instructions for your area  
and type of equipment. Refer to Grounding on page 4.  
D If you experience any static sparking or even a slight shock while using this equipment, stop  
pumping immediately. Check the entire system for proper grounding. Do not use the system  
again until the problem has been identified and corrected.  
D Pipe and dispose of the exhaust air safely, away from all sources of ignition. If the diaphragm  
fails, the fluid is exhausted along with the air. See Air Exhaust Ventilation on page 7.  
D Do not smoke in the work area. Do not operate the equipment near a source of ignition or an  
open flame, such as a pilot light.  
HALOGENATED HYDROCARBON HAZARD  
Never use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or  
fluids containing such solvents in aluminum pumps. Such use could result in a serious chemical  
reaction, with the possibility of explosion, which could cause death, serious injury, and/or substantial  
property damage.  
Consult your fluid suppliers to ensure that the fluids used are compatible with aluminum parts.  
United States Government safety standards have been adopted under the Occupational Safety and Health Act.  
You should consult these standards—particularly the General Standards, Part 1910, and the Construction  
Standards, Part 1926.  
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3
Installation  
General Information  
Grounding  
D The Typical Installation shown in Fig. 2 is only a  
guide for selecting and installing system  
WARNING  
ELECTRIC SHOCK HAZARD  
components. Contact your Graco distributor for  
assistance in planning a system to suit your needs.  
This pump must be grounded. The  
steps for grounding may differ from the  
way you ground other pumps. Read and  
carefully follow the grounding instructions below  
before you operate the pump.  
D Always use genuine Graco parts and accessories.  
D Reference numbers and letters in parentheses refer  
to the callouts in the figures and in the Parts  
Drawing on page 22 and the Parts Lists on pages  
23 and 24.  
To reduce the risk of static sparking, ground the pump  
and all other equipment used or located in the pumping  
area. Check your local electrical code for detailed  
grounding instructions for your area and type of  
equipment.  
WARNING  
HAZARDOUS FLUIDS  
To reduce the risk of serious injury,  
splashing in the eyes or on the skin, and  
toxic fluid spills, never move or lift a  
pump under pressure. If dropped, the fluid section  
could rupture. Always follow the Pressure Relief  
Procedure on page 9 before you move or lift the  
pump.  
Ground all of this equipment:  
D Pump: Connect a ground wire and clamp as shown  
in Fig. 1. Loosen the grounding lug locknut (W)  
and washer (X). Insert one end of a 12 ga (1.5  
mm@) minimum ground wire (Y) into the slot in the  
lug (Z), and tighten the locknut securely. Connect  
the clamp end of the ground wire to a true earth  
ground. To order a ground wire and clamp, order  
Part No. 222011.  
D The pump is very heavy. If it must be moved, have  
two people lift the pump by grasping the outlet  
manifold (50). See the Parts Drawing on page 22.  
Use a compatible thread sealant on all male threads.  
Tighten all connections firmly to avoid air or fluid leaks.  
Y
CAUTION  
To avoid pump damage, do not overtighten the  
fittings to the pump.  
X
W
Z
Tightening Screws Before First Use  
Before using the pump for the first time, check and  
retorque all external fasteners. See Torque  
Sequence, page 25. After the first day of operation,  
retorque the fasteners. Although pump use varies, a  
general guideline is to retorque fasteners every two  
months.  
06318  
Fig. 1  
D Air compressor: Follow the manufacturer’s  
recommendations.  
D Air and fluid hoses: Use only grounded hoses with  
a maximum of 500 ft (150 m) combined hose  
length to ensure grounding continuity.  
D All solvent pails used when flushing: Follow the  
local code. Use only metal pails, which are  
conductive. Do not place the pail on a  
non-conductive surface, such as paper or  
cardboard, which interrupts grounding continuity.  
D Fluid supply container: Follow the local code.  
4
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Installation  
FLOOR-MOUNT TYPICAL INSTALLATION  
KEY  
A
B
Air supply hose  
Bleed-type master air valve  
(required for pump)  
C
D
E
F
Air regulator  
Air line quick disconnect  
Master air valve (for accessories)  
Air line filter  
G Fluid suction hose  
B
C
F
E
H
J
Fluid supply  
Ball valve (for releasing collected moisture)  
Fluid outlet hose  
L
N
R
S
Y
Air inlet port  
Fluid inlet port  
Fluid outlet port  
Ground wire (required; see page 4  
for installation instructions)  
S
L
A
Y
N
D
H
G
R
J
06319  
Fig. 2  
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5
Installation  
2. Install a flexible air hose between the accessories  
Mountings  
and the pump air inlet. Screw the air line fitting  
into the air inlet.  
CAUTION  
3. Do not restrict the exhaust port. Excessive  
exhaust restriction can cause erratic pump  
operation.  
The pump exhaust air may contain contaminants.  
Ventilate to a remote area if contaminants could  
affect your fluid supply. See Air Exhaust Ventila-  
tion on page 7.  
Fluid Lines  
D Be sure the mounting can support the weight of the  
pump, hoses, and accessories, as well as the  
stress caused during operation.  
WARNING  
Graco always recommends that you use grounded  
fluid hoses to dissipate static electricity. When  
pumping non-conductive flammable fluids, groun-  
ded fluid hoses are required. See Fire and Explo-  
sion Hazard on page 3.  
D For all mountings, be sure the pump is secured with  
screws through the mounting feet (58). See the  
mounting feet in the Parts Drawing on page 22.  
Air Line  
Fluid Outlet Line  
WARNING  
A bleed-type master air valve and a fluid drain  
valve are required on your system.  
1. Attach the fluid outlet hose to the fluid outlet flange  
by using a 3-in. ANSI or DIN flanged hose or pipe.  
2. Install a fluid drain valve near the fluid outlet. See  
the WARNING in the Air Line section at left.  
The bleed-type master air valve relieves air  
trapped between itself and the pump. Trapped air  
can cause the pump to cycle unexpectedly, which  
could result in serious bodily injury, including  
splashing in the eyes, injury from moving parts, or  
contamination from hazardous fluids.  
Fluid Suction Line  
Attach the fluid suction hose to the pump fluid inlet  
flange by using a 3-in. ANSI or DIN flanged fluid  
suction hose or pipe.  
D If the inlet pressure to the pump is more than 25  
percent of the outlet working pressure, the ball  
check valves do not close fast enough, which  
results in inefficient pump operation.  
The fluid drain valve reduces the risk of serious  
bodily injury, including splashing in the eyes or on  
the skin, or contamination from hazardous fluids.  
Install the fluid drain valve close to the pump’s  
fluid outlet to relieve pressure in the hose if the  
hose becomes plugged.  
D At inlet fluid pressures over 15 psi (100 kPa, 1.0  
bar), diaphragm life is shortened.  
1. Mount the air line accessories on the wall or on a  
bracket. Be sure the air line supplying the  
accessories is grounded.  
D The maximum suction lift is 8 ft (2.5 m) of water dry  
or 28 ft (8.5 m) of water wet. For suction lifts  
between 8 ft (2.5 m) and 28 ft (8.5 m) of water, it is  
necessary to install a foot valve, and it is necessary  
to flood the suction to prime the pump. The pump  
may prime better if you reduce the inlet air pressure  
until the pump is primed.  
a. The pump speed can be controlled in one of  
two ways: To control it on the air side, install  
an air regulator. To control it on the fluid side,  
install a fluid valve near the outlet.  
b. Install a bleed-type master air valve  
downstream from the air regulator, and use it  
to relieve trapped air. See the WARNING,  
above. Locate another bleed-type master air  
valve upstream from all air line accessories,  
and use it to isolate the accessories during  
cleaning and repair.  
c. The air line filter removes harmful dirt and  
moisture from the compressed air supply.  
6
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Installation  
Air Exhaust Ventilation  
WARNING  
TOXIC FLUID HAZARD  
Changing Manifold Orientation  
(See Fig. 6 on page 14)  
Be sure to read and follow the USING  
HAZARDOUS FLUIDS, and FIRE OR  
EXPLOSION HAZARD warnings on  
page 3, before you operate this pump.  
The outlet manifold (50) and inlet manifold (53) can be  
rotated to best suit your installation needs. The pump  
is shipped with the inlet and outlet facing in the same  
direction.  
Be sure the system is properly ventilated  
for your type of installation. You must  
vent the exhaust to a safe place, away  
from people, animals or food handling  
areas when pumping flammable or  
hazardous fluids.  
1. Remove the screws (54) from each end of the  
manifold (50 or 53).  
2. Turn the manifold to the desired position, and  
reinstall the screws (54). Torque to 55 to 60 ft-lb  
(75 to 81 NSm). See Torque Sequence, page 25.  
The minimum size for the air exhaust hose is1 in.  
(25.4 mm) ID x 5 ft. (1.5 m). If a longer hose is  
required, use a larger diameter hose. Avoid sharp  
bends or kinks in the hose.  
NOTE: To ensure proper seating, visually check  
that the manifold is centered on the fluid covers  
(51) before you tighten the screws (54).  
If the diaphragm ruptures, the fluid being pumped  
will be exhausted with the air. Place a container at  
the end of the air exhaust line to catch fluid in case  
the diaphragm ruptures.  
Fluid Pressure Relief Valve  
CAUTION  
Some systems may require installation of a pres-  
sure relief capability at the pump outlet to prevent  
overpressurization and rupture of the pump or  
hose.  
The air exhaust port is 1 npt(f). Do not restrict the air  
exhaust port. Excessive exhaust restriction can cause  
erratic pump operation.  
To provide a remote exhaust:  
Thermal expansion of fluid in the outlet line can  
cause overpressurization if the fluid line is close  
ended. Such overpressurization can occur when  
using long fluid lines exposed to sunlight or ambi-  
ent heat, or when pumping from a cool to a warm  
area (for example, from an underground tank).  
1. Remove the muffler (60) from the pump air  
exhaust port.  
2. Install a grounded air exhaust hose (T) and  
connect the muffler (60) to the other end of the  
hose. The minimum size for the air exhaust hose  
is 1 in. (25.4 mm) ID x 5 ft (1.5 m). If a longer  
hose is required, use a larger diameter hose.  
Avoid sharp bends or kinks in the hose. See  
Fig. 3.  
3. Place a container (U) at the end of the air exhaust  
line to catch fluid in case a diaphragm ruptures.  
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7
Installation  
VENTING EXHAUST AIR  
KEY  
A
B
Air supply line  
Bleed-type master air valve  
(required for pump)  
E
B
F
C
C
D
E
F
J
P
T
U
Air regulator  
Air Line quick disconnect  
Master air valve (for accessories)  
Air line filter  
Ball valve (for releasing collected moisture)  
Muffler  
Grounded air exhaust hose  
Container for remote air exhaust  
A
J
D
U
T
60  
06321  
Fig. 3  
8
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Operation  
3. Place the suction tube (if used) in the fluid to be  
Pressure Relief Procedure  
pumped.  
WARNING  
NOTE: If the inlet pressure to the pump is more  
than 25 percent of the outlet working pressure, the  
ball check valves will not close fast enough,  
resulting in inefficient pump operation.  
To reduce the risk of serious injury, including  
splashing fluid in the eyes or on the skin, follow this  
procedure whenever you are instructed to relieve  
pressure, when you shut off the pump, and before  
you check, adjust, clean, move, or repair any  
system equipment.  
4. Place the end of the outlet hose into an  
appropriate container.  
5. Close the fluid drain valve.  
6. With the air regulator closed, open all bleed-type  
master air valves.  
1. Shut off the air to the pump.  
7. If the outlet hose has a dispensing device, hold it  
open while continuing with step 8.  
2. Open any available outbound fluid valves to relieve  
fluid pressure from the pump.  
8. Slowly open the air regulator until the pump starts  
to cycle. Allow the pump to cycle slowly until all air  
is pushed out of the lines and the pump is primed.  
3. If fluid is still in the outbound fluid lines, isolate this  
fluid as follows:  
If you are flushing, run the pump long enough to  
thoroughly clean the pump and hoses, close the  
air regulator, and remove the suction hose from  
the solvent and place it in the fluid to be pumped.  
a. Close the outbound fluid valves.  
b. Slowly remove the fluid connections from the  
pump, and have a container ready to catch  
any fluid that runs out.  
If you are shutting down the pump, remove the  
suction hose from the fluid container, run the pump  
until the fluid is forced out of the system, and shut  
off the air supply immediately.  
Flush the Pump Before First Use  
The pump was tested in water. If water could  
contaminate the fluid you are pumping, flush it  
thoroughly with a compatible solvent. Follow the  
procedure in Starting and Adjusting the Pump.  
If you are going to use the pump, start the pump  
again, and place the suction hose in the supply  
container.  
Starting and Adjusting the Pump  
Pump Shutdown  
At the end of the work shift and before checking,  
adjusting, cleaning, or repairing the system, relieve  
the pressure.  
WARNING  
To reduce the risk of serious injury, splashing in  
the eyes or on the skin, and toxic fluid spills,  
never move or lift a pump under pressure. If the  
pump is dropped, the fluid section could rupture.  
Always follow the Pressure Relief Procedure  
above before you move or lift the pump.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure at left.  
1. Be sure the pump is properly grounded. Read and  
follow the instructions in Grounding on page 4.  
2. Check all fittings to be sure they are tight. Be sure  
to use a compatible liquid thread sealant on all  
male threads.  
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9
Maintenance  
Lubrication  
Tightening Connections  
The air valve is designed to operate unlubricated.  
Before each use, check all hoses for wear or damage,  
and replace them as necessary. Check to be sure all  
connections are tight and leak free. Check fasteners.  
Tighten or retorque as necessary. Although pump use  
varies, a general guideline is to retorque fasteners  
every two months. See Torque Sequence, page 25.  
If lubrication is desired, every 500 hours of operation  
(or monthly), remove the hose from the pump air inlet  
and add two drops of machine oil to the air inlet.  
CAUTION  
Do not over-lubricate the pump. Excess oil is ex-  
hausted through the muffler, which could contami-  
nate your fluid supply or other equipment.  
Preventive Maintenance Schedule  
Establish a preventive maintenance schedule, based  
on the pump’s service history. This is especially  
important for prevention of spills or leakage due to  
diaphragm failure.  
Flushing and Storage  
Flush the pump often enough to prevent the fluid you  
are pumping from drying or freezing in the pump and  
damaging it. Always flush the pump and relieve the  
pressure before storing it for any length of time. Use  
a compatible solvent.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 9.  
10  
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Troubleshooting  
WARNING  
To reduce the risk of serious injury, including splashing fluid in the eyes or on the skin, follow the Pressure  
Relief Procedure on page 9. You must do this whenever this manual instructs you to relieve pressure, when  
you shut off the pump, and before checking, adjusting, cleaning, moving, or repairing any system equipment.  
NOTE: Check all possible problems and causes before you disassemble the pump.  
PROBLEM  
CAUSE  
SOLUTION  
Pump cycles at stall or fails to hold pres- Worn check valve balls (201), seats  
Replace. See page 14.  
sure at stall. (101) or o-rings (102).  
Pump will not cycle, or cycles once and Air valve is stuck or dirty.  
stops.  
Disassemble and clean air valve. See  
pages 12 to 13. Use filtered air.  
Check valve ball (201) severely worn  
Replace ball and seat. See page 14.  
and wedged in seat (101) or manifold  
(50 or 53).  
Check valve ball (201) is wedged into  
seat (101), due to overpressurization.  
Install a pressure relief valve  
(see page 7).  
Dispensing valve is clogged.  
Suction line is clogged.  
Relieve pressure and clear valve.  
Inspect; clear.  
Pump operates erratically.  
Sticky or leaking check valve balls  
(201).  
Clean or replace. See page 14.  
Diaphragm (301) is ruptured.  
Restricted exhaust.  
Replace. See pages 15 to 17.  
Remove restriction.  
Air bubbles in fluid.  
Suction line is loose.  
Tighten.  
Diaphragm (301) is ruptured.  
Replace. See pages 15 to 17.  
Loose inlet manifold (53), damaged seal Tighten manifold bolts (54), or replace  
between manifold and seat (101), or  
damaged o-rings (101).  
seats (101) or o-rings (102). See  
page 14.  
Loose diaphragm shaft bolt (14).  
Damaged o-ring (102).  
Tighten or replace. See pages 15 to 17.  
Replace. See pages 15 to 17.  
Fluid in exhaust air.  
Diaphragm (301) is ruptured.  
Loose diaphragm shaft bolt (14).  
Damaged o-ring (102).  
Replace. See pages 15 to 17.  
Tighten or replace. See pages 15 to 17.  
Replace. See pages 15 to 17.  
Pump leaks air externally.  
Air valve cover screws (3) are loose.  
Tighten screws. See page 13.  
Air valve gasket (20) or air cover gasket Inspect; replace. See pages 12 to 13,  
(10) is damaged.  
18 to 19.  
Pump leaks fluid externally from ball  
check valves.  
Loose manifolds (50 or 53), damaged  
o-ring (102) between manifold and seat. o-rings (102). See page 14.  
Tighten manifold bolts (54), or replace  
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11  
Service  
Repairing the Air Valve  
Tools Required  
D Torque wrench  
3. Move the main valve (6) to the center position, and  
pull it out of the cavity. Using a needle-nose pliers,  
pull the pilot block (16) straight up and out of the  
cavity.  
D 7-mm or 9/32-in. socket wrench or TorxR  
screwdriver T20  
D Needle-nose pliers  
D O-ring pick  
4. Pull the two actuator pistons (7) out of the  
bearings (8). Remove the u-cup seals (9) from the  
pistons. Pull the push pins (18) out of the bearings  
(17). Remove the o-rings (19) from the housing  
(2) with an o-ring pick.  
D Lithium-base grease, Part No. 111920 (Lubriplate  
630AA or equivalent)  
NOTE: Air Valve Service Kit 238765 is available.  
Parts included in the Air Valve Service Kit are marked  
with a symbol in the Air Motor Parts List, for  
example (3{). See page 23. Use all the parts in the  
kit for the best results.  
5. Inspect the valve plate (11) in place. If damaged,  
use a TorxR T20 screwdriver or 7-mm or 9/32-in.  
socket wrench to remove the screws (3).  
Disassembly (See Fig. 4)  
1. Relieve the pressure.  
6. Remove the valve plate (11) and seal (12). See  
Fig. 5.  
7. Inspect the bearings (8 and 17) in place. The  
bearings are tapered, and, if damaged, must be  
removed from the outside. See Removing and  
Replacing Bearings and Air Gasket on page 18.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 9.  
8. Clean all parts and inspect for wear or damage.  
Replace as needed. Reassemble as explained on  
page 13.  
2. With a 7-mm or 9/32-in. socket wrench or TorxR  
T20 screwdriver, remove the screws (3), air valve  
cover (5), and valve cover gasket (20).  
2
3
11  
2
3
19  
6
8
5
groove  
1
16  
17  
4
18  
20  
6
Apply grease to lapped  
surfaces of 16.  
1
06323  
9
3
6
5
7
2
2
3
4
5
6
Torque to 28 to 50 in-lb (3.2 to 5.6 NSm).  
Install with lips facing narrow end of piston.  
Insert narrow end first.  
Insert wide end first.  
Grease.  
06322  
Fig. 4  
12  
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Service  
Reassembly  
For steps 1 to 3, see Fig. 5.  
6. Grease the u-cup seals (9). Insert the actuator  
pistons in the bearings (8) wide end first. Leave  
the narrow end of each piston exposed in the valve  
cavity.  
1. If you removed the bearings (8 and 17), install new  
ones and reassemble the fluid section as  
explained on page 18.  
7. Grease the lower face of the pilot block (16), and  
install so its tabs snap into the grooves on the  
ends of the pilot pins (16).  
2. Grease and install the valve plate seal (12) in the  
groove at the bottom of the valve cavity.  
3. Install the valve plate (11) in the cavity with the  
counter-bore facing up. Insert the screws (3) that  
hold the valve plate. Using a 7-mm or 9/32-in.  
socket wrench or TorxR T20 screwdriver, torque  
the screws to 28 to 50 in-lb (3.2 to 5.6 NSm).  
8. Grease the lower face of the main valve (6).  
9. Install the main valve (6) so its tabs slip into the  
grooves on the narrow ends of the actuator  
pistons (7).  
For steps 4 to 11, see Fig. 4.  
10. Slide the pilot block (16) and the main valve (6) to  
one side of the valve cavity. See Fig. 4.  
4. Grease the o-rings (19), and install them in the  
housing (2). Grease the push pins, and insert them  
into the bearings (17) narrow end first.  
11. Align the valve cover o-ring (20) and cover (5) with  
the holes in the center housing (2). Insert the  
screws (3). Using a TorxR T20 screwdriver or  
7 mm or 9/32-in. socket wrench, torque the screws  
to 28 to 50 in-lb (3.2 to 5.6 NSm).  
5. Install a u-cup seal (9) on each actuator piston (7),  
so the lips of the packings face the narrow end of  
the piston.  
2
3
11  
1
12  
1
2
Grease.  
Torque to 28 to 50 in-lb (3.2 to 5.6 NSm).  
06324  
Fig. 5  
308639  
13  
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13  
Service  
Ball Check Valve Repair  
Tools Required  
Torque to 55 to 60 ft-lb (75 to 81 NSm). See Torque  
Sequence, page 25.  
1
2
The ball seat is on the same side as the step for the  
o-ring (102).  
D Torque wrench  
3
D 15-mm socket wrench  
D O-ring pick  
To ensure proper seating, visually check that the  
manifold (50 or 53) is centered on the fluid covers  
(51) before you tighten the screws (54).  
NOTE: A Fluid Section Service Kit is available. See  
the Repair Kit Matrix on page 21 to find the correct kit  
for your pump. Parts included in the kit are marked  
with an asterisk in the Parts Drawing on page 22, for  
example (201*). Use all the parts in the kit for the best  
results.  
1
54  
NOTE: To ensure proper seating of the balls (201),  
always replace the seats (101) when you replace the  
balls.  
50  
3
201  
102  
Disassembly (See Fig. 6)  
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 9.  
2
101  
51  
WARNING  
Some of the pump parts and assemblies are heavy.  
Use proper lifting equipment and techniques.  
1
54  
2. Using a 15-mm socket wrench, remove the bolts  
(54) holding the outlet manifold (50) to the fluid  
covers (51).  
3. Remove the seats (101), balls (201), and o-rings  
(102) from the fluid covers (51).  
201  
102  
2
4. Remove the inlet manifold bolts (54).  
5. Remove the seats (101), balls (201), and o-rings  
(102) from the fluid covers (51).  
101  
Reassembly (See Fig. 6)  
1. Clean all parts, and inspect for wear or damage.  
Replace parts as needed.  
3
53  
2. Reassemble in the reverse order, following all  
notes in Fig. 6. Be sure all parts are assembled  
exactly as shown.  
06325  
NOTE: To ensure proper seating, visually check  
that the manifold (50 or 53) is centered on the fluid  
covers (51) before you tighten the screws (54).  
Fig. 6  
14  
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Service  
Diaphragm Repair  
Tools Required  
D Torque wrench  
NOTE: A Fluid Section Service Kit is available. See  
the Repair Kit Matrix on page 21 to find the correct kit  
for your pump. Parts included in the kit are marked  
with an asterisk in the Parts Drawing on page 22, for  
example (201*). Use all the parts in the kit for the best  
results.  
D 15-mm socket wrench  
D 15/16-in. socket wrench  
D 7/8 in. open–end wrench  
D O-ring pick  
D Lithium-base grease, Part No. 111920 (Lubriplate  
630AA or equivalent)  
51  
1
54  
51  
1
54  
1
1
1
Torque to 55 to 60 ft-lb (75 to 81 NSm) in a crossing pattern.  
See Torque Sequence, page 25.  
06326  
Fig. 7  
308639  
15  
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15  
Service  
Disassembly  
Reassembly (See Fig. 8)  
1. Relieve the pressure.  
1. Install each u-cup seal (15) so the lips face away  
from the center of the pump. Lubricate the u-cup  
seals.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 9.  
2. Install a diaphragm assembly on one end of the  
shaft (14) as follows:  
a. Place a washer (63) and then a white o-ring  
(64) on the diaphragm bolt (62). The o-ring  
may fit very snugly on the bolt. Insert the bolt  
into the fluid-side diaphragm plate (52) as  
shown in Fig. 8. Grease the bolt threads.  
WARNING  
Some of the pump parts and assemblies are heavy.  
Use proper lifting equipment and techniques.  
b. Lay the diaphragm (301) into the grooves on  
the fluid-side diaphragm plate (52) so that the  
side marked AIR SIDE faces the center of the  
pump.  
2. Remove the manifolds and disassemble the ball  
check valves as explained in Ball Check Valve  
Repair on page 14.  
For models with bolt–through PTFE  
diaphragms, also install the shim (302) and  
back-up diaphragm (303), as shown in Fig. 8.  
Line up diaphragm tabs with tabs on air cover.  
The bolts must go through the bolt–through  
PTFE diaphragm.  
3. Using a 15-mm socket wrench, remove the  
screws (54), and pull the fluid covers off the pump.  
See Fig. 7.  
For steps 4 to 9, see Fig. 8.  
c. Place the air-side diaphragm plate (57) and  
washer (63) over the bolt. Screw the shaft  
(14) onto the bolt handtight.  
4. Using 15/16-in. wrenches or sockets, loosen but  
do not remove one of the diaphragm plate bolts  
(62). (whichever one turns)  
3. Grease the length of the shaft (14), and slide it  
through the center housing (2).  
5. Remove the fluid-side plate (52), diaphragm (301),  
and air-side plate (57).  
For models with PTFE diaphragms, also remove  
the shim (302) and back-up diaphragm (303).  
4. Assemble the other diaphragm assembly to the  
shaft as explained in step 2.  
6. Pull the other diaphragm assembly and the  
diaphragm shaft (14) out of the center housing (2).  
Hold the shaft flats with a 7/8-in. wrench, and  
remove the remaining fluid-side plate (52) from the  
shaft. Disassemble the remaining diaphragm  
assembly.  
Step 5 is easiest if the pump is mounted vertically in a  
vise.  
5. Torque the bolts (62) to 100 to 120 ft-lb (136 to  
163 NSm).  
7. Inspect the diaphragm shaft (14) for wear or  
scratches. If it is damaged, inspect the bearings  
(13) in place. If the bearings are damaged, see  
Removing and Replacing Bearings and Air  
Gasket on page 18.  
WARNING  
Failure to properly torque the diaphragm bolts (62)  
could result in a bolt failure. If a diaphragm bolt  
fails, fluid is exhausted through the muffler. See  
Air Exhaust Ventilation on page 7.  
8. Reach into the center housing (2) with an o-ring  
pick, and hook the u-cup seals (15), then pull them  
out of the housing. This can be done with the  
bearings (13) in place.  
6. Install the fluid cover screws (54) hand tight.  
Torque the screws to 55 to 60 ft-lb (75 to 81 NSm)  
in a crossing pattern. See Fig. 7. See Torque  
Sequence, page 25.  
9. Clean all parts and inspect for wear or damage.  
Replace parts as needed.  
7. Reassemble the ball check valves and manifolds  
as explained on page 14.  
16  
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Service  
Cutaway View with Diaphragms in Place  
Cutaway View with Diaphragms Removed  
57  
52  
64  
62  
4
63  
13  
13  
1
3
15  
2
14  
06327  
06328  
1
1
303  
5
3
14  
63  
57  
1
14  
3
64  
1
63  
302  
5
301  
2
2
6
301  
52  
4
62  
1
2
Lips face out of housing (1).  
Side marked AIR SIDE must face center housing (2).  
06329A  
3
4
Grease.  
Torque to 100 to 120 ft-lb (136 to 163 NSm).  
5
6
Used only in models with PTFE diaphragms.  
Bolt–through PTFE diaphragms: Line up diaphragm tabs with tabs on air cover. Bolts go through the diaphragm.  
Fig. 8  
308639  
17  
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17  
Service  
Removing and Replacing Bearings and Air Gasket (See Fig. 9)  
Tools Required  
D Torque wrench  
D 13-mm socket wrench  
D Bearing puller  
6. Remove the air cover gaskets (10). Always  
replace the gaskets with new ones.  
7. Use a bearing puller to remove the diaphragm  
shaft bearings (13), piston actuator bearings (8),  
and push pin bearings (17). Do not remove any  
bearings if they are not damaged.  
D O-ring pick  
D Press, or block and mallet  
Disassembly  
Reassembly  
1. Insert the bearings (8, 13, and 17) into the housing  
(2), tapered end first. Using a press or a block  
and mallet, press-fit each bearing so it is flush with  
the surface of the housing.  
NOTE: Do not remove undamaged bearings. This  
procedure is only for replacing bearings that are  
damaged.  
2. Reassemble the air valve as explained on  
page 13.  
1. Relieve the pressure.  
3. Install the u-cup shaft seals (15) with the lips  
facing away from the bearing (13). See Fig. 8.  
WARNING  
To reduce the risk of serious injury whenever you  
are instructed to relieve pressure, always follow the  
Pressure Relief Procedure on page 9.  
4. Align each new air cover gasket (10) so the push  
pin (18) protruding from the center housing (2) fits  
through the proper hole (H) in the gasket, as  
shown in Fig. 8.  
2. Remove the manifolds, and disassemble the ball  
check valves as explained on page 14.  
5. Align each air cover (1) so the through hole is on  
the bottom, as shown in Fig. 8. Install the screws  
(27) handtight. Using a 13-mm socket, torque the  
screws oppositely and evenly to 19 to 21 ft-lb (26  
to 28 NSm).  
3. Remove the fluid covers and diaphragm  
assemblies as explained on pages 15 and 16.  
NOTE: If you are removing only the diaphragm shaft  
bearing (8), skip step 4.  
6. Install the diaphragm assemblies and fluid covers  
as explained on page 16.  
4. Disassemble the air valve as explained on  
page 12.  
7. Reassemble the ball check valves and manifolds  
as explained on page 14.  
5. Using a 13-mm socket wrench, remove the screws  
(27) holding the air covers (1) to the center  
housing (2). See Fig. 9.  
18  
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Service  
Detail of Bearings  
1
2
Press-fit bearings flush with surface of center housing (2).  
Torque to 19 to 21 ft-lb (26 to 28 NSm).  
1 8  
17  
1
06330  
15  
1
18  
H
10  
27  
2
1
2
through hole must  
be on bottom  
1
06331  
Fig. 9  
308639  
19  
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19  
Pump Matrix  
Husky 3275 Pumps, Series C  
Your Model No. is marked on the pump’s serial plate. To determine the Model No. of your pump from the following  
matrix, select the six digits that describe your pump, working from left to right. The first digit is always D,  
designating Husky diaphragm pumps. The remaining five digits define the materials of construction.  
For example, a pump with an aluminum air motor and fluid section, TPE seats, PTFE balls, and TPE diaphragms is  
Model D K 3 5 1 5. To order replacement parts, refer to the Part Lists on pages 23 and 24. The digits in the  
matrix do not correspond to the reference numbers in the Parts Drawing and Parts Lists.  
Diaphragm  
Pump  
Air Motor  
Fluid Section  
aluminum  
Seats  
Balls  
Diaphragms  
TPE  
232505*  
aluminum  
TPE  
acetal  
D (for all pumps) K (aluminum)  
3 (aluminum)  
0 (null)  
0 (null)  
0 (null)  
3 (316 SST)  
5 (TPE)  
1 (PTFE)  
2 (acetal)  
6 (Santoprener)  
G (Geolastr)  
5 (TPE)  
6 (Santoprener)  
G (Geolastr)  
6 (Santoprener)  
G (Geolastr)  
P (bolt–through PTFE)  
* 232505, Aluminum 3275 Pump, Series C  
Model No. 232505 is a private-label aluminum 3275 pump. Other than the label, it is the same  
as Model No. DK3525.  
* 24D619, Aluminum 3275 Pump, Series A  
Model No. 24D619 is a private-label aluminum 3275 pump. Other than the label and the parts listed below, it is the  
same as Model No. DK3525.  
Ref. No. 54 is Part No. 16D109 SCREW, M12 x 1.75 x 55 mm (2.17”); stainless steel. Qty: 40  
20  
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Repair Kit Matrix  
For Husky 3275 Pumps, Series C  
Repair kits may be ordered separately. To repair the air valve, order the Air Valve Service Kit, Part No. 238765  
(see page 23). Parts included in the Air Valve Service Kit are marked with a symbol in the Air Motor Parts List, for  
example (3{).  
To repair the seats, balls, and diaphragms, select the six digits that describe your pump from the following matrix,  
working from left to right. The first digit is always D, the second digit is always 0 (zero), and the third digit is  
always K. The remaining three digits define the materials of construction. Parts included in the kit are marked with  
an asterisk in the Parts Drawing on page 22, for example (201*).  
For example, if your pump has SantopreneR seats, PTFE balls, and SantopreneR diaphragms, you need to order  
Repair Kit D 0 K 6 1 6. The digits in the matrix do not correspond to the reference numbers in the Parts  
Drawing and Parts Lists on pages 23 and 24.  
Diaphragm  
Pump  
Air Motor  
Shaft O-Ring  
Seats  
Balls  
Diaphragms  
D (for all pumps) 0 (for all pumps) K (for all pumps)  
0 (null)  
0 (null)  
0 (null)  
3 (316 SST)  
5 (TPE)  
1 (PTFE)  
2 (acetal)  
5 (TPE)  
6 (SantopreneR) 6 (SantopreneR) 6 (SantopreneR)  
G (Geolastr)  
G (Geolastr)  
G (Geolastr)  
P (bolt–through PTFE)  
308639  
21  
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21  
Parts Drawing  
55  
3{  
5
56  
54  
50  
63  
57  
20{  
{16  
6
303}*  
11  
301*  
12{  
201*  
102*  
60  
1
101*  
23  
24  
18  
17  
7
19{  
51  
*}302  
52  
64  
62  
63  
54  
54  
61  
2
8
13  
{9  
*15  
27  
201*  
10  
102*  
101*  
14  
1
54  
53  
06316A  
*
Included in Fluid Section Service Kit. See the  
Repair Kit Matrix on page 21 to find the correct kit  
for your pump.  
{
}
Included in Air Valve Service Kit 238765, which  
may be purchased separately. Kit includes 2 of  
113554.  
58  
Used only in models with PTFE diaphragms.  
22  
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Parts Lists  
Air Motor Parts List (Matrix Column 2)  
Fluid Section Parts List (Matrix Column 3)  
Ref.  
Ref.  
Digit No.  
Part No. Description  
Qty.  
Digit No.  
Part No. Description  
Qty.  
2
3
50  
190830  
MANIFOLD, outlet;  
aluminum  
1
K
1
2
190827  
190826  
COVER, air; aluminum  
HOUSING, center;  
aluminum  
1
51  
52  
190828  
191990  
COVER, fluid; aluminum  
2
2
PLATE, fluid side;  
aluminum  
3{  
113554  
10  
SCREW, mach, TorxR,  
hex flange hd; M5 x 0.8 x  
16 mm (0.63”); SST  
53  
54  
190829  
113629  
MANIFOLD, inlet;  
aluminum  
1
5
190831  
240222  
190822  
190823  
113249  
COVER, valve; aluminum  
MAIN VALVE; aluminum  
PISTON, actuator; acetal  
BEARING, piston; acetal  
1
1
2
2
2
SCREW, M12 x 1.75 x  
55 mm ( 2.17”); aluminum  
40  
6
7
55Y 290267  
56Y 290266  
LABEL, warning  
LABEL, warning  
1
1
2
8
9{  
SEAL, u-cup; nitroxile  
nitrile  
57  
192196  
PLATE, air side;  
aluminum  
10  
190835  
GASKET, air cover;  
HDPE foam  
2
58  
190906  
FOOT, mounting; carbon  
steel  
2
11  
190817  
190825  
PLATE, valve; SST  
1
1
60  
61  
62  
111897  
290211  
114313  
MUFFLER  
1
1
2
12{  
SEAL, valve plate;  
Buna–N  
LABEL, identification  
SCREW, hex washer  
head; 5/8–11 x 3  
13  
190819  
190818  
188614  
190821  
190820  
114375  
113252  
BEARING, shaft; acetal  
SHAFT; SST  
2
1
1
2
2
2
1
14  
63  
64  
114314  
114315  
WASHER, plain; 5/8”  
4
2
16{  
17  
BLOCK, pilot; acetal  
BEARING, pin; acetal  
PIN, push; SST  
PACKING, o-ring; PTFE  
Y Replacement Danger and Warning labels, tags, and  
18  
cards are available at no cost.  
19{  
20{  
PACKING, o-ring; nitrile  
PACKING, o-ring;  
Buna–N  
23  
24  
27  
104029  
104582  
114193  
CLAMP, grounding  
WASHER, tab  
1
1
SCREW, mach, hex,  
washer head  
16  
{
Included in Air Valve Service Kit 238765, which may be  
purchased separately. Kit includes 2 of 113554.  
*
Included in Fluid Section Service Kit. See the Repair Kit  
Matrix on page 21 to find the correct kit for your pump.  
308639  
23  
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23  
Parts Lists  
Seat Parts List (Matrix Column 4)  
Diaphragm Parts List (Matrix Column 6)  
Ref.  
Ref.  
Digit No.  
Part No. Description  
Qty.  
4
Digit No.  
Part No. Description  
DIAPHRAGM; TPE  
Qty.  
2
3
5
6
G
101* 190840  
102* 113449  
SEAT; 316 SST  
5
6
301* 190839  
15* 113265  
O-RING; PTFE  
SEAT; TPE  
4
SEAL, u-cup; nitroxile  
nitrile  
2
101* 190837  
102* 113449  
101* 190836  
102* 113449  
101* 194217  
102* 113449  
4
301* 190838  
15* 113265  
DIAPHRAGM;  
SantopreneR  
2
2
O-RING; PTFE  
SEAT; SantopreneR  
O-RING; PTFE  
SEAT; GeolastR  
O-RING; PTFE  
4
4
SEAL, u-cup; nitroxile  
nitrile  
4
G
P
301* 194218  
15* 113265  
DIAPHRAGM; GeolastR  
2
2
4
SEAL, u-cup; nitroxile  
nitrile  
4
301* 15M510 BOLT–THROUGH  
DIAPHRAGM; PTFE  
2
Ball Parts List (Matrix Column 5)  
302* 193414  
303* 190838  
SHIM  
2
2
Ref.  
Digit No.  
Part No. Description  
Qty.  
4
DIAPHRAGM, back-up;  
SantopreneR  
1
2
6
G
201* 113253  
201* 113266  
BALL; PTFE  
15*  
113265  
SEAL, u-cup; nitroxile  
nitrile  
2
BALL; acetal  
4
201* 113254  
201* 114754  
BALL; SantopreneR  
BALL; GeolastR  
4
*
Included in Fluid Section Service Kit. See the Repair Kit  
Matrix on page 21 to find the correct kit for your pump.  
4
Technical Data  
Maximum fluid working pressure . . . . . . . . . . . . 120 psi  
(0.8 MPa, 8 bar)  
Air operating range . . . . . . . . . . . . . . . . . . 20 to 120 psi  
(0.14 to 0.8 MPa, 1.4 to 8 bar)  
Maximum air consumption . . . . . . . . . . . . . . . 325 scfm  
Air consumption at 70 psi and100 gpm  
* Sound power level at 120 psi (0.8 MPa, 8 bar)  
and 105 cpm . . . . . . . . . . . . . . . . . . . . . . . . . 101 dBa  
* Sound pressure level at 120 psi (0.8 MPa, 8 bar)  
and 105 cpm . . . . . . . . . . . . . . . . . . . . . . . . . . 86 dBa  
* Sound pressure level at 50 psi (0.3 MPa, 3 bar)  
and 50 cpm . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 dBa  
Air inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npt(f)  
Maximum operating temperature . . . . . 150_ F (65_ C)  
Fluid inlet . . . . . . . . 3-in. ANSI 4-bolt / DIN 8-bolt flange  
Fluid outlet . . . . . . 3-in. ANSI 4-bolt / DIN 8-bolt flange  
Wetted parts . . . . . . . . . . . aluminum, PTFE, GeolastR  
SantopreneR, TPE, plated steel, acetal, SST  
(480 kPa, 4.8 bar and 379 lpm) . . . . . . . . . . . . 120 scfm  
3
(1.26 m /min)  
Maximum free-flow delivery . . . . . 275 gpm (1,041 lpm)  
Maximum pump speed . . . . . . . . . . . . . . . . . . . 135 cpm  
Gallons (liters) per cycle . . . . . . . . . . . . . . . . . . 2.0 (7.6)  
Maximum suction lift (water)  
Dry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ft (2.5 m)  
Wet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ft (8.5 m)  
Maximum size pumpable solids . . . . . 3/8 in. (9.4 mm)  
Weight . . . . . . . . . . . . . . . . approximately 150 lb (68 kg)  
* Sound power level measured per ISO Standard 9614–2. Sound pressure measured 1 meter from pump.  
Geolastr and Santoprener are registered trademarks of the Monsanto Company.  
TorxR is a registered trademark of Camcar, Division of Textron, Inc.  
24  
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Torque Sequence  
Always follow torque sequence when instructed to torque fasteners.  
1. Left/Right Fluid Cover  
3. Outlet Manifold  
Torque bolts to 55–60 ft–lb (75–81 NSm)  
Torque bolts to 55–60 ft–lb (75–81 NSm)  
1
23  
3
21  
19  
8
5
10  
12  
11  
9
6
7
22  
20  
24  
4
2
SIDE VIEW  
TOP VIEW  
2. Inlet Manifold  
Torque bolts to 55–60 ft–lb (75–81 NSm)  
17  
13  
15  
14  
16  
18  
BOTTOM VIEW  
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25  
Dimensional Drawings  
Fluid inlet (bottom  
FRONT VIEW  
15.25 in.  
(387.5 mm)  
Four 0.84 in.  
(21.5 mm) holes  
(ANSI)  
manifold) and fluid  
outlet (top manifold):  
3.25 in. (83 mm) dia. I.D.  
Eight 0.84 in.  
(21.5 mm) holes (DIN)  
28.6 in.  
(727 mm)  
20.3 in.  
(516 mm)  
24.5 in.  
(622.5 mm)  
4.1 in.  
(104 mm)  
7.9 in.  
(200 mm) O.D.  
0.185 in.  
(5 mm)  
PUMP MOUNTING HOLE PATTERN  
12 in.  
(305 mm)  
30.5 in.  
(774 mm)  
Four 0.5 in.  
(12.5 mm) holes  
SIDE VIEW  
20.65 in.  
13 in.  
(330 mm)  
(524.5 mm)  
4.75 in.  
(121 mm)  
Flanges  
are Flat  
Faced  
12 in.  
(305 mm)  
3/4 npt(f)  
Air Inlet  
A
A
4.22 in.  
(117 mm)  
Section  
A–A  
1 npt(f)  
Air Exhaust  
(muffler not shown)  
16.94 in.  
(430 mm)  
6.5 in.  
(165 mm)  
13 in.  
(330 mm)  
7432A  
15 in.  
(381 mm)  
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Performance Charts  
Aluminum Husky 3275 Fluid Outlet Pressure  
Test Conditions: Pump tested in water with inlet submerged.  
140  
(0.98, 9.8)  
Fluid Pressure Curves  
120  
(0.8, 8)  
A
B
C
D
E
at 120 psi (0.8 MPa, 8 bar) air pressure  
at 100 psi (0.7 MPa, 7 bar) air pressure  
at 70 psi (0.48 MPa, 4.8 bar) air pressure  
at 40 psi (0.28 MPa, 2.8 bar) air pressure  
at 20 psi (0.14 MPa, 1.4 bar) air pressure  
A
B
100  
(0.7, 7)  
80  
(0.55, 5.5)  
60  
C
(0.41, 4.1)  
40  
(0.28, 2.8)  
D
E
20  
(0.14, 1.4)  
0
0
30  
60  
90  
120  
150  
180  
210  
240  
270  
(114)  
(227)  
(341)  
(454)  
(568)  
(681)  
(795)  
(908)  
(1022)  
FLUID FLOW––gpm (lpm)  
To find Fluid Outlet Pressure (psi/MPa/bar) at a  
specific fluid flow (gpm/lpm) and operating air  
pressure (psi/MPa/bar):  
To calculate Pressure Head in feet at a specific fluid outlet  
pressure (psi):  
pressure head, feet = (psi * 2.31) / specific gravity of fluid  
1. Locate fluid flow rate along bottom of chart.  
To calculate Pressure Head in meters at a specific fluid outlet  
pressure (MPa):  
2. Follow vertical line up to intersection with selected  
fluid outlet pressure curve.  
pressure head, meters = (MPa * 102) / specific gravity of fluid  
3. Follow left to scale to read fluid outlet pressure.  
To calculate Pressure Head in meters at a specific fluid outlet  
pressure (bar):  
pressure head, meters = (bar * 10.2) / specific gravity of fluid  
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27  
Performance Charts  
Aluminum Husky 3275 Air Consumption  
Test Conditions: Pump tested in water with inlet submerged.  
350  
(9.8)  
Air Consumption Curves  
A
B
C
D
E
at 120 psi (0.8 MPa, 8 bar) air pressure  
at 100 psi (0.7 MPa, 7 bar) air pressure  
at 70 psi (0.48 MPa, 4.8 bar) air pressure  
at 40 psi (0.28 MPa, 2.8 bar) air pressure  
at 20 psi (0.14 MPa, 1.4 bar) air pressure  
300  
(8.4)  
250  
(7.0)  
200  
(5.6)  
A
B
150  
(4.2)  
C
100  
(2.8)  
D
E
50  
(1.4)  
0
0
30  
60  
90  
120  
150  
180  
210  
240  
270  
(114)  
(227)  
(341)  
(454)  
(568)  
(681)  
(795)  
(908)  
(1022)  
FLUID FLOW––gpm (lpm)  
To find Pump Air Consumption (scfm or m#/min) at a  
specific fluid flow (gpm/lpm) and air pressure  
(psi/MPa/bar):  
1. Locate fluid flow rate along bottom of chart.  
2. Read vertical line up to intersection with selected air  
consumption curve.  
3. Follow left to scale to read air consumption.  
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Notes  
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29  
Graco Warranties  
Graco Standard Husky Pump 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 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 five years 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 accordance 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  
substitution 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 six 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  
reconnaissent 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.  
Extended Product Warranty  
Graco warrants all Husky 205, 307, 515, 716, 1040, 1590, 2150, and 3275 air valve center sections to be free from defects in material  
and workmanship for a period of fifteen years from date installed in service by the original purchaser. Normal wear of items such as  
packings or seals are not considered to be defects in material and workmanship.  
Five years  
Six to Fifteen years  
Graco will provide parts and labor.  
Graco will replace defective parts only.  
Graco Information  
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.  
Original instructions. This manual contains English. MM 308639  
Graco Headquarters: Minneapolis  
International Offices: Belgium, Korea, China, Japan  
GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441  
Copyright 2002, Graco Inc. is registered to ISO 9001  
Revised 03/2010  
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