Instructions – Parts List
POLYPROPYLENE AND PVDF
Huskyt 1590 Air-Operated
308549ZAD
Diaphragm Pumps
1.5–inch AODD pump for fluid transfer applications. For professional
use only.
Not approved to European explosive atmosphere requirements.
See Models on page 2 for a list of pump models and descriptions.
120 psi (0.84 MPa, 8.4 bar) Maximum Fluid Working Pressure
120 psi (0.84 MPa, 8.4 bar) Maximum Air Input Pressure
EN
Important Safety Instructions
Read all warnings and instructions in
this manual. Save these instructions.
04700B
Table of Contents
Models 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service
Repairing the Air Valve 16. . . . . . . . . . . . . . . . . . . . . .
Ball Check Valve Repair 18. . . . . . . . . . . . . . . . . . . . .
Diaphragm Repair 19. . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing and Air Gasket Removal 23. . . . . . . . . . . . .
Models
Model No. Description
*DB2______ Polypropylene Pumps
*DC2______ Polypropylene Pumps, Remote
Pump Matrix 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Kit Matrix 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Sequence 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data and Performance Chart 35. . . . . . . . . . .
Graco Standard Warranty 36. . . . . . . . . . . . . . . . . . . . . .
Graco Information 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
*DB5______ PVDF Pumps
*DC5______ PVDF Pumps, Remote
*DT2______ Polypropylene Plus Pumps
*DU2______ Polypropylene Plus Pumps, Remote
*DT5______ PVDF Plus Pumps
*DU5______ PVDF Plus Pumps, Remote
24B758 PVDF Plus Pump with overmolded diaphragms
24B759 Polypropylene Plus Pump with overmolded diaphragms
24B760 Polypropylene Pump with overmolded diaphragms
24B761 Polypropylene Pump with overmolded diaphragms and sst seats
24B832 PVDF Pump with overmolded diaphragms
* See the Pump Matrix on page 26 to determine the Model No. of your pump.
NOTE: Plus Models include stainless steel center sections.
2 308549
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
WARNING
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
INSTRUCTIONS
D This equipment is for professional use only.
D Read all instruction manuals, tags, and labels before operating the equipment.
D Use the equipment only for its intended purpose. If you are not sure, call Graco your Graco
distributor.
D Do not alter or modify this equipment.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
D Check equipment daily. Repair or replace worn or damaged parts immediately.
D Do not exceed the maximum working pressure of the lowest rated component in your system.
This equipment has a 120 psi (0.84 MPa, 8.4 bar) maximum working pressure at 120 psi
(0.84 MPa, 8.4 bar) maximum incoming air pressure.
D Use fluids and solvents which are compatible with the equipment wetted parts. Refer to the
Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s
warnings.
D Do not use hoses to pull equipment.
D Route hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not ex-
pose Graco hoses to temperatures above 82_ C (180_ F) or below –40_ C (–40_ F).
D Do not lift pressurized equipment.
D Wear hearing protection when operating this equipment.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
308549 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.
D Know the specific hazards of the fluid you are using.
D Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
D Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid
and solvent manufacturer.
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 11.
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.
D Ground the equipment. Refer to Grounding on page 6.
D Never use a polypropylene or PVDFR pump with non-conductive flammable fluids as specified
by your local fire protection code. Refer to Grounding on page 6 for additional information.
Consult your fluid supplier to determine the conductivity or resistivity of your fluid.
D If there is any static sparking or you feel an electric shock while using this equipment, stop
pumping immediately. Do not use the equipment until you identify and correct the problem.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being sprayed, dispensed, or transferred.
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 11.
D Keep the work area free of debris, including solvent, rags, and gasoline.
D Electrically disconnect all equipment in the work area.
D Extinguish all open flames or pilot lights in the work area.
D Do not smoke in the work area.
D Do not turn on or off any light switch in the work area while operating or if fumes are present.
D Do not operate a gasoline engine in the work area.
4 308549
Installation
General Information
D The Typical Installation shown in Fig. 2 is only a
guide for selecting and installing system components. Contact your Graco distributor or Graco
Technical Assistance (see back page) for assistance in planning a system to suit your needs.
D Always use Genuine Graco Parts and Accessories.
Be sure all accessories are adequately sized and
pressure-rated to meet the system’s requirements.
D Reference numbers and letters in parentheses refer
to the callouts in the figures and the parts lists on
pages 30 to 31.
D Variations in color between the plastic components
of this pump are normal. Color variation does not
affect the performance of the pump.
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.
Tighten Screws Before First Use
Before using the pump for the first time, check and
retorque all external fasteners. See Torque Se-
quence, page 32. After the first day of operation,
retorque the fasteners. Although pump use varies, a
general guideline is to retorque fasteners every two
months.
1. Read TOXIC FLUID HAZARD on page 4.
2. Use fluids and solvents which are compatible
with the equipment wetted parts. Refer to the
Technical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s
warnings.
308549 5
Installation
B
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before
operating the pump, ground the system
as explained below. Also, read the section FIRE AND EXPLOSION HAZARD,
on page 4.
Polypropylene and PVDF are not conductive.
Attaching the ground wire to the grounding lug
grounds only the air motor. 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. See Fig. 1.
Never use a polypropylene or a PVDF pump with
non-conductive flammable fluids as specified by
your local fire protection code.
US Code (NFPA 77 Static Electricity) recommends
a conductivity greater than 50 x 10
ter (mhos/meter) over your operating temperature
range to reduce the hazard of fire. Consult your
fluid supplier to determine the conductivity or
resistivity of your fluid. The resistivity must be less
than 2 x 1012 ohm-centimeters.
–12
Siemans/me-
Ground all of this equipment:
D Pump: Connect a ground wire and clamp as shown
in Fig. 1. Loosen the grounding screw (W). Insert
one end of a 12 ga (1.5 mm@) minimum ground wire
(Y) behind the grounding screw and tighten the
screw securely. Connect the clamp end of the
ground wire to a true earth ground. Order Part
No. 237569 Ground Wire and Clamp.
NOTE: When pumping conductive flammable fluids
with a polypropylene or a PVDF pump, always ground
the entire fluid system. See the WARNING on
page 6.
D Air and fluid hoses: Use only electrically conductive
hoses.
D Air compressor: Follow the manufacturer’s recom-
mendations.
D All solvent pails used when flushing: Follow your
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 the grounding continuity.
D Fluid supply container: Follow your local code.
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.
6 308549
Fig. 1
Y
W
02646
Installation
Air Line
WARNING
A bleed-type master air valve (B) is required in
your system to relieve air trapped between this
valve and the pump. Trapped air can cause the
pump to cycle unexpectedly, which could result in
serious injury, including splashing in the eyes or on
the skin, injury from moving parts, or contamination
from hazardous fluids. See Fig. 2.
1. Install the air line accessories as shown in Fig. 2.
Mount these accessories on the wall or on a
bracket. Be sure the air line supplying the accessories is electrically conductive.
a. Install an air regulator (C) and gauge to control
the fluid pressure. The fluid outlet pressure will
be the same as the setting of the air regulator.
b. Locate one bleed-type master air valve (B)
close to the pump and use it to relieve trapped
air. See the WARNING at left. Locate the other
master air valve (E) upstream from all air line
accessories and use it to isolate them during
cleaning and repair.
c. The air line filter (F) removes harmful dirt and
moisture from the compressed air supply.
2. Install an electrically conductive, flexible air hose
(A) between the accessories and the 1/2 npt(f)
pump air inlet (N). See Fig. 2. Use a minimum 1/2”
(13 mm) ID air hose.
3. Screw an air line quick disconnect coupler (D) onto
the end of the air hose (A); be sure the coupler
porting is large enough to not restrict the air flow,
which will affect pump performance. Screw the
mating fitting into the pump air inlet snugly. Do not
connect the coupler (D) to the fitting until you are
ready to operate the pump.
Floor Mount Typical Installation
KEY FOR FIG. 2
A Electrically conductive air supply hose
B Bleed-type master air valve
(required for pump)
C Air regulator
D Air line quick disconnect
E Master air valve (for accessories)
F Air line filter
G Fluid suction hose
H Fluid supply
J Fluid drain valve (required)
K Fluid shutoff valve
L Fluid hose
N 1/2 npt(f) air inlet port
R 1–1/2” fluid inlet flange
S 1–1/2” fluid outlet flange
Y Ground wire (required; see page 6
for installation instructions)
Y J
B
C
E
F
A
D
S
KL
N
H
R
G
Fig. 2
04701B
308549 7
Installation
Installation of Remote Pilot Air Lines
1. Refer to Parts Drawings. Connect air line to pump
as in preceding steps.
2. Connect 1/4 in. O.D. tubing to push type connectors (14) on air motor of pump.
NOTE: by replacing the push type connectors, other
sizes or types of fittings may be used. The new fittings
will require 1/8 in. npt threads.
3. Connect remaining ends of tubes to external air
signal, such as Graco’s Cycleflo (P/N 195264) or
Cycleflo II (P/N195265) controllers.
NOTE: the air pressure at the connectors must be at
least 30% of the air pressure to the air motor for the
pump to operate.
Mountings
CAUTION
The pump exhaust air may contain contaminants.
Ventilate to a remote area if the contaminants
could affect your fluid supply. See Air Exhaust
Ventilation on page 11.
1. Be sure the mounting surface can support the
weight of the pump, hoses, and accessories, as
well as the stress caused during operation.
2. For all mountings, be sure the pump is bolted
directly to the mounting surface.
3. For ease of operation and service, mount the
pump so the air valve cover (2), air inlet, and fluid
inlet and outlet ports are easily accessible.
4. Rubber Foot Mounting Kit 236452 is available to
reduce noise and vibration during operation.
Fluid Suction Line
1. The pump fluid inlet (R) is a 1–1/2 in. raised face
flange. Refer to Flange Connections on page 9.
2. If the fluid inlet pressure to the pump is more than
25% of the outlet working pressure, the ball check
valves will not close fast enough, resulting in
inefficient pump operation.
3. At inlet fluid pressures greater than 15 psi
(0.1 MPa, 1 bar), diaphragm life will be shortened.
4. See the Technical Data on page 35 for maximum
suction lift (wet and dry).
Fluid Outlet Line
WARNING
A fluid drain valve (J) is required 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. See
Fig. 2.
1. The pump fluid outlet (S) is a 1–1/2 in. raised face
flange. Refer to Flange Connections on page 9.
2. Install a fluid drain valve (J) near the fluid outlet.
See the WARNING above.
3. Install a shutoff valve (K) in the fluid outlet line.
8 308549
Installation
Flange Connections
The fluid inlet and outlet ports are 1–1/2 in. raised
face, standard 150 lb class pipe flanges. Connect
1–1/2 in. flanged plastic pipe to the pump as follows.
You will need:
D Torque wrench
D Adjustable wrench
D a 5 in. diameter, 1/8 in. thick PTFE gasket, with
four 0.63 in. diameter holes on a 3.88 in. diameter
bolt circle, and a 1.75 in. diameter center
D four 1/2 in. x 3 in. bolts
D four 1/2 in. spring lockwashers
D eight 1/2 in. flat washers
D four 1/2 in. nuts.
1. Place a flat washer (E) on each bolt (C). Refer to
Fig. 3.
2. Align the holes in the gasket (B) and the pipe
flange (A) with the holes in the pump outlet flange
(S).
3. Lubricate the threads of the four bolts. Install the
bolts through the holes and secure with the washers (E), lockwashers (D), and nuts (F).
4. Hold the nuts with a wrench. Refer to the tightening sequence in Fig. 3 and torque the bolts to 10 to
15 ft-lb (14 to 20 NSm). Do not over-torque.
5. Repeat for the pump inlet flange (R).
BOLT TIGHTENING SEQUENCE
1
3
F
D
E
2
1
4
S
B
04405
A
E
C
1
R
KEY FOR FIG. 3
A Flanged plastic pipe
B PTFE gasket
C Bolt
D Lockwasher
E Flat washer
FNut
R 1–1/2” fluid inlet flange
S 1–1/2” fluid outlet flange
Fig. 3
Lubricate threads. Torque to 10 to 15 ft-lb
1
(14–20 N-m). Do not over-torque.
04703B
308549 9
Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
The pump is shipped with the fluid inlet (R) and outlet
(S) ports facing the same direction. See Fig. 4. To
change the orientation of the inlet and/or outlet port:
1. Remove the screws (106 and 112) holding the inlet
(102) and/or outlet (103) manifold to the covers
(101).
2. Reverse the manifold and reattach. Install the
screws and torque to 80 to 90 in-lb (9 to 10 NSm).
See Torque Sequence, page 32.
KEY
N 1/2 npt(f) Air Inlet Port
P Muffler; Air Exhaust Port
is 3/4 npt(f)
R 1–1/2” Fluid Inlet Flange
S 1–1/2” Fluid Outlet Flange
1
Torque to 80 to 90 in-lb (9 to 10 NSm).
See Torque Sequence, page 32.
101 Fluid Covers
102 Fluid Inlet Manifold
103 Fluid Outlet Manifold
106 Fluid Outlet Manifold
Screws (Top)
112 Fluid Inlet Manifold
Screws (Bottom)
103
106
1
Fluid Pressure Relief Valve
CAUTION
Some systems may require installation of a pressure relief valve at the pump outlet to prevent
overpressurization and rupture of the pump or
hose. See Fig. 5.
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 Husky
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.
KEY
R 1–1/2” fluid inlet flange
S 1–1/2” fluid outlet flange
V Pressure relief valve
Part No. 112119 (stainless steel)
N
P
Fig. 4
102
112
S
1
Install valve between fluid inlet and outlet ports.
2
Connect fluid inlet line here.
3
Connect fluid outlet line here.
S
3
101
R
1
04700B
R
Fig. 5
V
2
1
04702B
10 308549
Installation
Air Exhaust Ventilation
WARNING
FIRE AND EXPLOSION HAZARD
Be sure to read and follow the warnings
and precautions regarding TOXIC
FLUID HAZARD, and FIRE OR EXPLOSION HAZARD on page 4, before op-
erating this pump.
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, food handling areas, and all sources of ignition when pumping
flammable or hazardous fluids.
Diaphragm failure will cause the fluid being
pumped to exhaust with the air. Place an appropriate container at the end of the air exhaust line to
catch the fluid. See Fig. 6.
The air exhaust port is 3/4 npt(f). Do not restrict the air
exhaust port. Excessive exhaust restriction can cause
erratic pump operation.
If the muffler (P) is installed directly to the air exhaust
port, apply PTFE thread tape or anti–seize thread
lubricant to the muffler threads before assembly.
To provide a remote exhaust:
1. Remove the muffler (P) from the pump air exhaust
port.
2. Install an electrically conductive air exhaust hose
(T) and connect the muffler (P) to the other end of
the hose. The minimum size for the air exhaust
hose is 3/4 in. (19 mm) ID. If a hose longer than 15
ft (4.57 m) is required, use a larger diameter hose.
Avoid sharp bends or kinks in the hose. See Fig. 6.
3. Place a container (U) at the end of the air exhaust
line to catch fluid in case a diaphragm ruptures.
Venting Exhaust Air
FBEC
D
KEY
A Air supply line
B Bleed-type master air valve
(required for pump)
C Air regulator
D Air line quick disconnect
E Master air valve (for accessories)
F Air line filter
P Muffler
T Electrically conductive air exhaust hose
U Container for remote air exhaust
A
T
U
P
Fig. 6
04704
308549 11
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 gun or splashing fluid, follow this procedure
whenever you:
D Are instructed to relieve pressure,
D Stop pumping,
D Check, clean or service any system equipment,
D Install or clean fluid nozzles.
1. Shut off the air to the pump.
2. Open the dispensing valve, if used.
3. Open the fluid drain valve to relieve all fluid pressure, having a container ready to catch the drainage.
Flush the Pump Before First Use
1. Be sure the pump is properly grounded. Refer to
Grounding on page 6.
2. Check all fittings to be sure they are tight. Be sure
to use a compatible liquid thread sealant on all
male threads. Tighten the fluid inlet and outlet
fittings securely.
3. Place the suction tube (if used) in the fluid to be
pumped.
NOTE: If the fluid inlet pressure to the pump is more
than 25% of the outlet working pressure, the ball check
valves will not close fast enough, resulting in inefficient
pump operation.
4. Place the end of the fluid hose (L) into an appropriate container.
5. Close the fluid drain valve (J). See Fig. 2.
The pump was tested with lightweight oil, which is left
in the fluid passages to protect parts. To avoid contaminating your fluid with oil, flush the pump with a compatible solvent before using the equipment. Follow the
steps under Starting and Adjusting the Pump.
Starting and Adjusting the Pump
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. Do not lift a pump under pressure. If
dropped, the fluid section may rupture. Always follow the Pressure Relief Procedure above before
lifting the pump.
6. With the pump air regulator (C) closed, open all
bleed-type master air valves (B, E).
7. If the fluid hose has a dispensing device, hold it
open while continuing with the following step.
8. Slowly open the air regulator (C) 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.
If you are flushing, run the pump long enough to
thoroughly clean the pump and hoses. Close the
air regulator. Remove the suction tube from the
solvent and place it in the fluid to be pumped.
12 308549
Operation
Operation of Remote Piloted Pumps
1. Follow preceding steps 1 through 7 of Starting
and Adjusting Pump.
2. Open air regulator (C).
WARNING
The pump may cycle once before the external signal is applied. Injury is possible. If pump cycles,
wait until end before proceeding.
3. Pump will operate when air pressure is alternately
applied and relieved to push type connectors (14).
Maintenance
Lubrication
The air valve is designed to operate unlubricated.
However, 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.
NOTE: Leaving air pressure applied to the air motor for
extended periods when the pump is not running may
shorten the diaphragm life. Using a 3–way solenoid
valve to automatically relieve the pressure on the air
motor when the metering cycle is complete prevents
this from occurring.
Pump Shutdown
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure at left.
At the end of the work shift, relieve the pressure.
Flush the pump often enough to prevent the fluid you
are pumping from drying or freezing in the pump and
damaging it. Flush with a fluid that is compatible with
the fluid you are pumping and with the wetted parts in
your system. Check with your fluid manufacturer or
supplier for recommended flushing fluids and flushing
frequency.
CAUTION
Do not over-lubricate the pump. Oil is exhausted
through the muffler, which could contaminate your
fluid supply or other equipment. Excessive lubrication can also cause the pump to malfunction.
Flushing and Storage
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
Always flush the pump and relieve the pressure before
storing it for any length of time.
Tightening Threaded Connections
Before each use, check all hoses for wear or damage,
and replace as necessary. Check to be sure all
threaded 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 32.
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.
308549 13
Troubleshooting
1. Relieve the pressure before checking or servicing
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
PROBLEM CAUSE SOLUTION
the equipment.
2. Check all possible problems and causes before
disassembling the pump.
Pump cycles at stall or fails to hold
pressure at stall.
Pump will not cycle, or cycles once
and stops.
Pump operates erratically. Clogged suction line. Inspect; clear.
Air bubbles in fluid. Suction line is loose. Tighten.
Worn check valve balls (301), seats
(201) or o-rings (202).
Air valve is stuck or dirty. Disassemble and clean air valve.
Check valve ball (301) severely
worn and wedged in seat (201) or
manifold (102 or 103).
Check valve ball (301) is wedged
into seat (201), due to overpressurization.
Dispensing valve clogged. Relieve pressure and clear valve.
Sticky or leaking balls (301). Clean or replace. See page 18.
Diaphragm ruptured. Replace. See pages 19 to 22.
Restricted exhaust. Remove restriction.
Diaphragm ruptured. Replace. See pages 19 to 22.
Loose inlet manifold (102), damaged seal between manifold and
seat (201), damaged o-rings (202).
Replace. See page 18.
See pages 16 to 17. Use filtered air.
Replace ball and seat. See page
18.
Install Pressure Relief Valve
(see page 10).
Tighten manifold bolts (112) or replace seats (201) or o-rings (202).
See page 18.
14 308549
Loose fluid side diaphragm plate
(105).
Tighten or replace. See pages
19 to 22.
Troubleshooting
PROBLEM CAUSE SOLUTION
Fluid in exhaust air. Diaphragm ruptured. Replace. See pages 19 to 22.
Loose fluid side diaphragm plate
(105).
Pump exhausts excessive air at
stall.
Pump leaks air externally. Air valve cover (2) or air valve cover
Pump leaks fluid externally from ball
check valves.
Worn air valve block (7{H), o-ring
(6{H),
plate (8H), pilot block (18), u-cups
(10), or pilot pin o-rings (17).
Worn shaft seals (402). Replace. See pages 19 to 22.
screws (3) are loose.
Air valve gasket (4{H) or air cover
gasket (22) is damaged.
Air cover screws (25) are loose. Tighten screws. See pages
Loose manifolds (102, 103), damaged seal between manifold and
seat (201), damaged o-rings (202).
Tighten or replace. See pages
19 to 22.
Inspect; replace. See pages
16 to 17.
Tighten screws. See page 17.
Inspect; replace. See pages 16
to 17 and 23 to 24.
23 to 24.
Tighten manifold bolts (106 and
112) or replace seats (201) or orings (202). See page 18.
308549 15
Service
Repairing the Air Valve
Tools Required
D Torque wrench
D Torx (T20) screwdriver or 7 mm (9/32 in.) socket
wrench
D Needle-nose pliers
D O-ring pick
D Lithium base grease
NOTE: Air Valve Repair Kits 236273 (aluminum center
housing models) and 255061 (SST center housing
models) are available. Refer to page 30. Parts included
in the kit are marked with a symbol, for example (4{).
Use all the parts in the kit for the best results.
Disassembly
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
1. Relieve the pressure.
Torque to 50–60 in-lb
2
(5.6–6.8 N-m).
Fig. 7
2
3
2
4{H
04705B
2. With a Torx (T20) screwdriver or 7 mm (9/32 in.)
socket wrench, remove the six screws (3), air
valve cover (2), and gasket (4{H). See Fig. 7.
3. Move the valve carriage (5{H) to the center position and pull it out of the cavity. Remove the valve
block (7{H) and o-ring (6{H) from the carriage.
Using a needle-nose pliers, pull the pilot block (18)
straight up and out of the cavity. See Fig. 8.
4. Pull the two actuator pistons (11) out of the bearings (12). Remove the u-cup packings (10{H) from
the pistons. Pull the pilot pins (16) out of the
bearings (15). Remove the o-rings (17) from the
pilot pins. See Fig. 9.
5. Inspect the valve plate (8H) in place. If damaged,
use a Torx (T20) screwdriver or 7 mm (9/32 in.)
socket wrench to remove the three screws (3).
Remove the valve plate (8) and, on aluminum
center housing models, remove the seal (9{). See
Fig. 10.
6. Inspect the bearings (12, 15) in place. See Fig. 9.
The bearings are tapered and, if damaged, must
be removed from the outside. This requires disassembly of the fluid section. See page 23.
1
See Detail at right.
2
Grease.
3 Grease lower face.
5
H{6
2
H{7
3
H{18
3
5
1
11
7. Clean all parts and inspect for wear or damage.
Replace as needed. Reassemble as explained on
page 17.
16 308549
Fig. 8
16
04898
Service
1
Insert narrow end first.
2
Grease.
Install with lips facing
3
narrow end of piston (11).
4
Insert wide end first.
10{H
11
1
Rounded side must face down (aluminum
center housing models only).
2
Tighten screws until
they bottom out on the
housing.
3
2
4
3
8H
9{
2
1
12
17{H 16
2
15
1
04899
Fig. 9
Reassembly
1. If you removed the bearings (12, 15), install new
ones as explained on page 23. Reassemble the
fluid section.
2. On aluminum center housing models, install the
valve plate seal (9{) into the groove at the bottom
of the valve cavity. The rounded side of the seal
must face down into the groove. See Fig. 10.
3. Install the valve plate (8H) in the cavity. On aluminum center housing models, the plate is reversible,
so either side can face up. Install the three screws
(3), using a Torx (T20) screwdriver or 7 mm
(9/32 in.) socket wrench. Tighten until the screws
bottom out on the housing. See Fig. 10.
4. Install an o-ring (17{H) on each pilot pin (16).
Grease the pins and o-rings. Insert the pins into
the bearings (15), narrow end first. See Fig. 9.
5. Install a u-cup packing (10{H) on each actuator
piston (11), so the lips of the packings face the
narrow end of the pistons. See Fig. 9.
Fig. 10
03271
6. Lubricate the u-cup packings (10{H) and actuator
pistons (11). Insert the actuator pistons in the
bearings (12), wide end first. Leave the narrow
end of the pistons exposed. See Fig. 9.
7. Grease the lower face of the pilot block (18{) and
install so its tabs snap into the grooves on the
ends of the pilot pins (16). See Fig. 8.
8. Grease the o-ring (6{H) and install it in the valve
block (7{H). Push the block onto the valve carriage
(5). Grease the lower face of the valve block. See
Fig. 8.
9. Install the valve carriage (5) so its tabs slip into the
grooves on the narrow end of the actuator pistons
(11). See Fig. 8.
10. Align the valve gasket (4{H) and cover (2) with the
six holes in the center housing (1). Secure with six
screws (3), using a Torx (T20) screwdriver or 7
mm (9/32 in.) socket wrench. Torque to 50–60 in-lb
(5.6–6.8 NSm). See Fig. 7.
308549 17
Service
Ball Check Valve Repair
Tools Required
D Torque wrench
D 10 mm socket wrench
D O-ring pick
Disassembly
NOTE: A Fluid Section Repair Kit is available. Refer to
page 27 to order the correct kit for your pump. Parts
included in the kit are marked with an asterisk, for
example (201*). Use all the parts in the kit for the best
results.
NOTE: To ensure proper seating of the balls (301),
always replace the seats (201) when replacing the
balls.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
1
Torque to 80 to 90 in-lb (9 to 10 NSm). See Torque Se-
quence, page 32.
2
Arrow (A) must point toward outlet manifold (103).
3 Not used on some models.
106
1
301*
201*
202*
101
A
103
3
2
1. Relieve the pressure. Disconnect all hoses.
2. Remove the pump from its mounting.
3. Using a 10 mm socket wrench, remove the eight
bolts (106) holding the outlet manifold (103) to the
fluid covers (101). See Fig. 11.
4. Remove the seats (201), balls (301), and o-rings
(202) from the manifold.
NOTE: Some models do not use o-rings (202).
5. Turn the pump over and remove the bolts (112)
and inlet manifold (102). Remove the seats (201),
balls (301), and o-rings (202) from the fluid covers
(101).
Reassembly
1. Clean all parts and inspect for wear or damage.
Replace parts as needed.
2. Reassemble in the reverse order, following all
notes in Fig. 11. Be sure the ball checks are assembled exactly as shown. The arrows (A) on the
fluid covers (101) must point toward the outlet
manifold (103).
Fig. 11
112
301*
201*
202*
3
102
1
04706B
18 308549
Service
Diaphragm Repair
Tools Required
D Torque wrench
D 13 mm socket wrench
D Adjustable wrench
D 19 mm open–end wrench
D O-ring pick
D Lithium-base grease
Disassembly
NOTE: A Fluid Section Repair Kit is available. Refer to
page 27 to order the correct kit for your pump. Parts
included in the kit are marked with an asterisk, for
example (401*). Use all the parts in the kit for the best
results.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
1. Relieve the pressure.
2. Remove the manifolds and disassemble the ball
check valves as explained on page 18.
3. Using 13 mm socket wrenches, remove the
screws (107 and 108) holding the fluid covers
(101) to the air covers (23). Pull the fluid covers
(101) off the pump. See Fig. 12.
You must torque the eight long screws (108) first, then the short
1
screws (107). Torque to 190 to 220 in-lb (21 to 25 NSm). See
Torque Sequence, page 32.
Fig. 12
2
Arrow (A) must point toward air valve (B).
B
23
101
A
2
1
107
1
108
04707B
308549 19
Service
4. Unscrew one outer plate (105) from the diaphragm
shaft (24). Remove one diaphragm (401), and the
inner plate (104). See Fig. 13.
For overmolded diaphragms: Grip both diaphragms securely around the outer edge and
rotate counterclockwise. One diaphragm assembly
will come free and the other will remain attached to
the shaft. Remove the freed diaphragm and air
side plate.
NOTE: PTFE models include a PTFE diaphragm (403)
in addition to the backup diaphragm (401).
5. Pull the other diaphragm assembly and the diaphragm shaft (24) out of the center housing (1).
Hold the shaft flats with a 19 mm open–end
wrench, and remove the outer plate (105) from the
shaft. Disassemble the remaining diaphragm
assembly.
For overmolded diaphragms: Pull the other diaphragm assembly and the diaphragm shaft (24)
out of the center housing (1). Hold the shaft flats
with a 19 mm open–end wrench and remove the
diaphragm and air side plate from the shaft.
6. Inspect the diaphragm shaft (24) for wear or
scratches. If it is damaged, inspect the bearings
(19) in place. If the bearings are damaged, refer to
page 23.
7. Reach into the center housing (1) with an o-ring
pick and hook the u-cup packings (402), then pull
them out of the housing. This can be done with the
bearings (19) in place.
Reassembly – Standard Diaphragms
1. Grease the shaft u-cup packings (402*) and install
them so the lips face out of the housing (1). See
Fig. 13.
2. Grease the length and ends of the diaphragm shaft
(24) and slide it through the housing (1).
3. Assemble the inner diaphragm plates (104), diaphragms (401*), PTFE diaphragms (403*, if present), and outer diaphragm plates (105) exactly as
shown in Fig. 13. These parts must be assembled
correctly.
4. Apply medium-strength (blue) LoctiteR or equivalent to the threads of the fluid-side plates (105).
Hold one of the outer plates (105) with a wrench,
and torque the other outer plate to 20 to 25 ft-lb
(27 to 34 NSm) at 100 rpm maximum. Do not
over-torque.
5. Align the fluid covers (101) and the center housing
(1) so the arrows (A) on the covers face the same
direction as the air valve (B). Secure the covers
with the screws (107 and 108), handtight. Install
the longer screws (108) in the top and bottom
holes of the covers. See Fig. 12.
6. First, torque the longer screws (108) oppositely
and evenly to 190–220 in-lb (21–25 NSm), using a
13 mm socket wrench. Then torque the shorter
screws (107). See Torque Sequence, page 32.
8. Clean all parts and inspect for wear or damage.
Replace parts as needed.
20 308549
7. Reassemble the ball check valves and manifolds
as explained on page 18.
Reassembly – Overmolded Diaphragms
WARNING
To reduce the risk of serious injury, including
amputation, do not put your fingers or hand between the air cover and the diaphragm.
1. Lubricate and install the shaft u–cup packings
(402*) so the lips face out of the housing (1). See
Fig. 13.
2. Assemble the air side plate (104) onto the diaphragm (403). The wide, radiused side of the plate
must face the diaphragm. Apply medium–strength
(blue) Loctite or equivalent to the threads of the
diaphragm assembly. Screw the assembly into the
shaft (24) hand–tight.
5. Assemble the other diaphragm assembly to the
shaft as explained in step 2. This diaphragm will
be lifted off the air cover at this point.
6. Supply the pump with low pressure air (less than 7
psi [0.05 MPa, 0.5 bar]). The diaphragm will very
slowly pull onto the air cover. Find the pressure
that keeps the diaphragm close enough to secure
with the screws, but does not let it contact the pilot
pin.
NOTE: Do not deform the diaphragm manually. The
diaphragm needs uniform pressure to deform properly
for maximum life.
7. Align the fluid cover (101) and the center housing
(1) so the arrow (A) faces the same direction as
the air valve. Secure the cover with two of the
longer screws (108), handtight.
3. Grease the length and ends of the diaphragm shaft
(24). Insert the shaft/diaphragm assembly into one
side of the pump. Align the fluid cover (101) and
the center housing (1) so the arrow (A) faces the
same direction as the air valve. Secure the cover
with the screws (107 and 108), handtight.
4. Torque the longer screws (108) oppositely and
evenly to 190–220 in–lb (21–25 NSm), using a
13mm socket wrench. Then torque the shorter
screws (107). See Torque Sequence, page 32.
NOTE: If the diaphragm contacts the pilot pin and is
forced away from the air cover, try Step 5 again. If
necessary, return to Step 3.
8. Torque the longer screws (108) oppositely and
evenly to 190–220 in–lb (21–25 NSm), using a
13mm socket wrench. Then torque the shorter
screws (107). See Torque Sequence, page 32.
9. Reassemble the ball check valves and manifolds
as explained on page 18.
308549 21
Service
24 104 401*
1
105
5
19 402*
403*
23
2 4
04708
1
1
03275
Cutaway View, with Diaphragms in Place Cutaway View, with Diaphragms Removed
Fig. 13
22 308549
24
3
104
401*
2
403*
2 4
105
5
1
24
3
1
Lips face out of housing (1).
2
Air Side must face center housing (1).
3
Grease.
4
Used on Models with PTFE diaphragms only.
5
Apply medium-strength (blue) LoctiteR or
equivalent. Torque to 20 to 25 ft-lb (27 to 34
NSm) at 100 rpm maximum.
04709B
Service
Bearing and Air Gasket Removal
Tools Required
D Torque wrench
D 10 mm socket wrench
D Bearing puller
D O-ring pick
D Press, or block and mallet
Disassembly
NOTE: Do not remove undamaged bearings.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
1. Relieve the pressure.
7. Use a bearing puller to remove the diaphragm
shaft bearings (19), air valve bearings (12) or pilot
pin bearings (15). Do not remove undamaged
bearings.
8. If you removed the diaphragm shaft bearings (19),
reach into the center housing (1) with an
o-ring pick and hook the u-cup packings (402),
then pull them out of the housing. Inspect the
packings. See Fig. 13.
Reassembly
1. If removed, install the shaft u-cup packings (402*)
so the lips face out of the housing (1).
2. The bearings (19, 12, and 15) are tapered and can
only be installed one way. Insert the bearings into
the center housing (1), tapered end first. Using a
press or a block and rubber mallet, press-fit the
bearing so it is flush with the surface of the center
housing.
3. Reassemble the air valve as explained on page
17.
2. Remove the manifolds and disassemble the ball
check valves as explained on page 18.
3. Remove the fluid covers and diaphragm assemblies as explained on page 19.
NOTE: If you are removing only the diaphragm shaft
bearing (19), skip step 4.
4. Disassemble the air valve as explained on page
16.
5. Using a 10 mm socket wrench, remove the screws
(25) holding the air covers (23) to the center
housing (1). See Fig. 14.
6. Remove the air cover gaskets (22). Always replace
the gaskets with new ones.
4. Align the new air cover gasket (22) so the pilot pin
(16) protruding from the center housing (1) fits
through the proper hole (H) in the gasket.
5. Apply medium-strength (blue) LoctiteR or equivalent to the threads of screws (25). Align the air
cover (23) so the pilot pin (16) fits in the middle
hole (M) of the three small holes near the center of
the cover. Install the screws (25), handtight. See
Fig. 14. Using a 10 mm socket wrench, torque the
screws oppositely and evenly to 130 to 150 in-lb
(15 to 17 NSm).
6. Install the diaphragm assemblies and fluid covers
as explained on page 19.
7. Reassemble the ball check valves and manifolds
as explained on page 18.
308549 23
1
Insert bearings tapered end first.
2
Press-fit bearings flush with surface of center housing (1).
3
Apply medium-strength (blue) LoctiteR or equivalent. Torque
to 130 to 150 in-lb (15 to 17 NSm).
Service
12
1
2
1
Fig. 14
19
1
16
HM
22
15
23
2
1
2
1
Detail of Air Valve Bearings
25
3
03277
03278B
24 308549
Notes
308549 25
Pump Matrix
Husky 1590 Polypropylene and PVDF Pumps, Series A
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 which 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 a Husky 1590 aluminum air motor, polypropylene fluid section, polypropylene seats, PTFE balls, and
PTFE diaphragms is Model
The digits in the matrix do not correspond to the ref. nos. in the parts drawing and lists.
Diaphragm
Pump Air Motor Fluid Section – Seats Balls Diaphragms
D B 2 9 1 1. To order replacement parts, refer to the part lists on pages 30 and 31.
D (for all pumps) B Aluminum
(standard)
24B758* C Aluminum
(remote)
24B759* T SST (standard) 3 (Aluminum; see
24B760* U SST (remote) 4 (SST; see
24B761* 5 (PVDF) – 5 (TPE) 5 (TPE) 5 (TPE)
24B832* – 6 (Santoprener) 6 (Santoprener) 6 (Santoprener)
246451 Stainless Steel Air Motor Conversion Kit
Use kit 246451 and refer to instruction manual 309643
(included with kit) to convert from aluminum air motor
1 (not used) – 1 (not used) 1 (PTFE) 1 (PTFE)
2 (polypropylene) – 2 (not used) 2 (acetal) 2 (not used)
– 3 (316 SST) 3 (not used) 3 (not used)
manual 308441)
– 4 (17–4 PH SST) 4 (440C SST) 4 (not used)
manual 308441)
– 7 (Buna–N) 7 (Buna–N) 7 (Buna–N)
– 8 (fluoroelastom-
er)
– 9 (polypropylene)
– A (PVDF)
– G (Geolastr) G (Geolastr) G (Geolastr)
8 (fluoroelastomer)
8 (fluoroelastomer)
* 24B761 Polypropylene Pump
This pump is the same as Model DB2311 except for
the serial plate and parts listed in the chart below.
to stainless steel air motor.
* 24B832 PVDF Pump
* 24B758 PVDF Plus Pump
This pump is the same as Model DT5A11 except for
This pump is the same as Model DB5A11 except for
the serial plate and parts listed in the chart below.
the serial plate and parts listed in the chart at right.
* 24B759 Polypropylene Plus Pump
This pump is the same as Model DT2911 except for
the serial plate and parts listed in the chart at right.
* 24B760 Polypropylene Pump
This pump is the same as Model DB2911 except for
the serial plate and parts listed in the chart at right.
26 308549
Ref.
No. Part No. Description Qty
104 15H810 PLATE, air side; alum. 2
105 ––– not used 0
401 15G745 DIAPHRAGM, HD, overmolded;
PTFE/EPDM
2
Repair Kit Matrix
For Husky 1590 Polypropylene and PVDF Pumps, Series A
Repair Kits may be ordered separately. To repair the air valve, order Part No. 236273 for aluminum center housing
models or Part No. 255061 for stainless steel center housing models (see page 30). Parts included in the Air Valve
Repair Kit are marked with a symbol in the parts list, for example (4{H).
To repair your pump, select the six digits which 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 is always C. The remaining three
digits define the materials of construction. Parts included in the kit are marked with an asterisk in the parts list, for
example (201*). For example, if your pump has polypropylene seats, PTFE balls, and PTFE diaphragms, order
Repair Kit D 0 C 9 1 1. If you only need to repair certain parts (for example, the diaphragms), use the 0 (null)
digits for the seats and balls, and order Repair Kit D 0 C 0 0 1. The digits in the matrix do not correspond to the
ref. nos. in the parts drawing and lists on pages 30 and 31.
Diaphragm
Pump Null
D (for all pumps) 0 (for all pumps) C (plastic) – 0 (null) 0 (null) 0 (null)
Fluid Section
Material – Seats Balls Diaphragms
– 1 (not used) 1 (PTFE) 1 (PTFE)
– 2 (not used) 2 (acetal) 2 (not used)
– 3 (316 SST) 3 (not used) 3 (not used)
– 4 (17–4 PH SST) 4 (440C SST) 4 (not used)
– 5 (TPE) 5 (TPE) 5 (TPE)
– 6 (Santoprener) 6 (Santoprener) 6 (Santoprener)
– 7 (Buna–N) 7 (Buna–N) 7 (Buna–N)
– 8 (fluoroelastom-
er)
– 9 (polypropylene)
– A (PVDF)
– G (Geolastr) G (Geolastr) G (Geolastr)
8 (fluoroelastomer)
8 (fluoroelastomer)
Part No. 253627: Husky 1590 HD Overmolded PTFE/EPDM Diaphragm Repair Kit.
Part No. 289225: Husky 1590 HD Overmolded PTFE/EPDM Diaphragm Repair Kit,
with new air side diaphragm plates.
Part No. 24F397: Husky 1590 PTFE/Santoprene Backer Diaphragm Repair Kit,
for plastic pumps.
308549 27
Air Motor Parts List (Matrix Column 2)
Parts
Ref.
Digit
No. Part No. Description Qty
B 1 188838 HOUSING, center;
aluminum
2 188854 COVER, air valve;
aluminum
3 116344 SCREW, mach, hex
flange hd; M5 x 0.8;
12 mm (0.47 in.)
4{H 188618 GASKET, cover; foam 1
5 188855 CARRIAGE; aluminum 1
6{H 108730 O-RING; nitrile 1
7{H 188616 BLOCK, air valve; acetal 1
8 188615 PLATE, air valve; sst 1
9{ 188617 SEAL, valve plate; buna-N 1
10{H 112181 PACKING, u-cup; nitrile 2
11 188612 PISTON, actuator; acetal 2
12 188613 BEARING, piston; acetal 2
13} 104765 PLUG, pipe; headless 2
14} 115671 FITTING, connector;
male
15 188611 BEARING, pin; acetal 2
16 188610 PIN, pilot; stainless steel 2
17{H 157628 O-RING; buna-N 2
18{H 188614 BLOCK, pilot; acetal 1
19 188609 BEARING, shaft; acetal 2
20 116343 SCREW, grounding 1
22 188603 GASKET, air cover; foam 2
23 189400 COVER, air; aluminum 2
24 189245 SHAFT, diaphragm; sst 1
Ref.
Digit
No. Part No. Description Qty
1
1
9
2
C Same as B with the following exceptions
1 195921 HOUSING, center;
remote, aluminum
23 195919 COVER, air; remote,
aluminum
T
Same as B with the following exceptions
1 15K009 HOUSING, center;
stainless steel
2 15K696 COVER, air valve;
stainless steel
8H 15H178 PLATE, air valve,
stainless steel
9 – – –
23 15A739 COVER, air; stainless
steel
25 112178 SCREW; M8 x 1.25;
25 MM (1 in.) stainless
steel
U
Same as B with the following exceptions
1 15K011 HOUSING, center;
remote, stainless steel
2 15K696 COVER, air valve;
stainless steel
8H 15H178 PLATE, air valve,
stainless steel
9 – – –
23 15B795 COVER, air; remote,
stainless steel
25 112178 SCREW; M8 x 1.25;
25 MM (1 in.) stainless
steel
1
2
1
1
1
2
12
1
1
1
2
12
25 115643 SCREW; M8 x 1.25;
28 308549
12
25 mm (1 in.), aluminum
Parts
Fluid Section Parts List (Matrix Column 3)
Ref.
Digit
No. Part No. Description Qty
2 101 189739 COVER, fluid;
polypropylene
102 192072 MANIFOLD, inlet;
polypropylene
103 192074 MANIFOLD, outlet;
polypropylene
104 15K448 PLATE, air side; alum. 2
105 189742 PLATE, fluid side;
polypropylene
106 112560 SCREW; M8 x 1.25;
70 mm (2.76 in.); sst
107 112368 SCREW; M10 x 1.50;
60 mm (2.36 in.); sst
108 114118 SCREW; M10 x 1.50;
90 mm (3.54 in.); sst
110Y188621 LABEL, warning 1
111 102656 MUFFLER 1
112 112559 SCREW; M8 x 1.25;
40 mm (1.57 in.); sst
2
1
1
2
8
12
8
8
Ref.
Digit
5 101 189741 COVER, fluid; PVDF 2
Part No. Description Qty
No.
102 192073 MANIFOLD, inlet; PVDF 1
103 192075 MANIFOLD, outlet;
PVDF
104 15K448 PLATE, air side;
aluminum
105 189744 PLATE, fluid side;
PVDF
106 112560 SCREW; M8 x 1.25;
70 mm (2.76 in.); sst
107 112368 SCREW; M10 x 1.50;
60 mm (2.36 in.); sst
108 114118 SCREW; M10 x 1.50;
90 mm (3.54 in.); sst
110Y188621 LABEL, warning 1
111 102656 MUFFLER 1
112 112559 SCREW; M8 x 1.25;
40 mm (1.57 in.); sst
1
2
2
8
12
8
8
308549 29
11 10{
Parts
106
3
H
2
103
H{17
16
20
H
{18
4{H
5
104
6{H
3
7{H
8H
9{
1
16
Y110
401*
403*
105
301*
1
201*
202*
1
17{H
1
12
10{H
11
14 }
22
23
25
107
24
15
*402
111
19
13 }
101
*301
*201
108
1 Not used on some models.
* These parts are included in the Pump Repair Kit, which may be purchased separately.
Refer to the Repair Kit Matrix on page 27 to determine the correct kit for your pump.
{ These parts are included in Air Valve Repair Kit 236273 (aluminum center housing mod-
els) which may be purchased separately.
H These parts are included in Air Valve Repair Kit 255061 (stainless steel center housing
models) which may be purchased separately.
Y Replacement Danger and Warning labels, tags and cards are available at no cost.
} These parts are unique to remote piloted air motor, DC––––, DT––––
112
202*
1
102
04622C
30 308549
Parts
Seat Parts List (Matrix Column 4)
Ref.
Digit
3 201* 189318 SEAT; 316 stainless steel 4
4 201* 189319 SEAT; 17–4 stainless
5 201* 189322 SEAT; TPE 4
6 201* 189320 SEAT; SantopreneR 4
7 201* 15B266 SEAT; Buna–N 4
8 201* 15B264 SEAT; fluoroelastomer 4
9 201* 193417 SEAT; polypropylene 4
A 201* 189732 SEAT; PVDF 4
G 201* 194213 SEAT; GeolastR 4
Part No. Description Qty
No.
202* 112418 O-RING; PTFE 4
steel
202* 112418 O-RING; PTFE 4
202 None Not Used 0
202* 112418 O-RING; PTFE 4
202 None Not used 0
202 None Not used 0
202* 112418 O-RING; PTFE 4
202* 112418 O-RING; PTFE 4
Diaphragm Parts List (Matrix Column 6)
Ref.
Digit
1 401* not sold
4
5 401* 189425 DIAPHRAGM; TPE 2
6 401* 189426 DIAPHRAGM; Santo-
7 401* 15B312 DIAPHRAGM; Buna–N 2
8 401* 15B501 DIAPHRAGM; fluoroelas-
G 401* 194214 DIAPHRAGM; GeolastR 2
* These parts are included in the pump repair kit, purchased
separately. See Repair Kit Matrix on page 27 to determine
the correct kit for your pump.
Part No. Description Qty
No.
DIAPHRAGM, backup;
separately
402* 112181 PACKING, u-cup; nitrile 2
403* 15K312 DIAPHRAGM; PTFE 2
402* 112181 PACKING, u-cup; nitrile 2
402* 112181 PACKING, u-cup; nitrile 2
402* 112181 PACKING, u-cup; nitrile 2
402* 112181 PACKING, u-cup; nitrile 2
402* 112181 PACKING, u-cup; nitrile 2
polychloroprene (CR)
preneR
tomer
2
2
2
202* 112418 O-RING; PTFE 4
Ball Parts List (Matrix Column 5)
Ref.
Digit
No. Part No. Description Qty
1 301* 112419 BALL; PTFE 4
2 301* 112423 BALL; acetal 4
4 301* 112420 BALL; 440C stainless
steel
5 301* 112831 BALL; TPE 4
6 301* 112421 BALL; SantopreneR 4
7 301* 15B490 BALL; Buna–N 4
8 301* 15B489 BALL; fluoroelastomer 4
G 301* 114752 BALL; GeolastR 4
4
308549 31
Torque Sequence
Always follow torque sequence when instructed to torque fasteners.
1. Left/Right Fluid Covers
Torque bolts to 190–220 in–lb (21–25 NSm)
1
8
10
6
4
SIDE VIEW
3
5
9
7
2
2. Inlet Manifold
Torque bolts to 80–90 in–lb (9–10 NSm)
12
12
13
15
15
13
18
18
3. Outlet Manifold
Torque bolts to 80–90 in–lb (9–10 NSm)
23
25
2021
2219
TOP VIEW
26
24
16
17
17
1411
1411
BOTTOM VIEW
16
32 308549
Dimensions
1/2 npt(f)
air inlet
3/4 npt(f)
air exhaust
C
FRONT VIEW
D
E
SIDE VIEW
B
G
F H
5.23 in.
(133 mm)
45_
outlet port I.D.:
1.75 in. (44.5 mm)
flange diameter:
5.5 in. (139.7 mm)
four 0.73 in.
(18.5 mm) slots
inlet port I.D.:
1.75 in.
(44.5 mm)
J
four 0.73 in.
(18.5 mm) slots
7439B
M
6.0 in.
(152.5
K
mm)
10.45 in.
(265.5 mm)
PUMP MOUNTING HOLE PATTERN
L
D
Dimensions B, C, F, G, H and M can
vary by up to 1/4 in. (6.3 mm) depending
on the seat and diaphragm material
fitted in the pump.
308549 33
Dimensions
Aluminum
SST Center
Polypropylene
Cover
Dimension
B 10.0 255 10.0 255 10.0 255 10.0 255
C 12.1 306 11.9 302 12.1 306 11.9 302
D 6.0 152 6.0 152 6.0 152 6.0 152
E 17.6 447 17.5 445 17.6 447 17.5 445
F 16.3 414 16.1 408 16.3 414 16.1 408
G 19.3 490 19.1 484 19.3 490 19.1 484
H 22.0 560 21.8 554 22.0 560 21.8 554
J 3.0 76 3.0 76 3.0 76 3.0 76
K 0.25 6 0.3 6 0.25 6 0.3 6
L 6.0 152 6.0 152 6.0 152 6.0 152
M 7.0 178 7.0 178 7.0 178 7.0 178
in. mm in. mm in. mm in. mm
SST Center
PVDF Cover
Center
Polypropylene
Cover
PVDF Cover
Aluminum
Center
34 308549
Technical Data
Maximum fluid working pressure 120 psi. . . . . . . . . . . . . . . . . .
Air pressure operating range 20 to 120 psi. . . . . . . . . . . . . . . .
(0.84 MPa, 8.4 bar)
(1.4 to 8.4 bar, 0.14 to 0.84 MPa)
Maximum air consumption 125 scfm. . . . . . . . . . . . . . . . . . . . .
Air consumption at 70 psi/60 gpm 50 scfm (see chart). . . . .
Maximum free flow delivery 100 gpm (378.5 l/min). . . . . . . . .
Maximum pump speed 200 cpm. . . . . . . . . . . . . . . . . . . . . . . . .
Gallons (liters) per cycle 0.5 (1.9). . . . . . . . . . . . . . . . . . . . . . . .
Maximum suction lift 18 ft (5.48 m) wet or dry. . . . . . . . . . . . .
Maximum size pumpable solids 3/16 in. (4.8 mm). . . . . . . . . .
* Maximum noise level at 100 psi, 50 cpm 94 dBa. . . . . . . .
Non-wetted external parts aluminum, 302 and 316 stainless.
steel polyester (labels)
Weight Polypropylene Pumps: . . . . . . . . . . . . . . . . . . . . . . . . . .
with aluminum center section 35 lb (16 kg). . . . . . . . . . . . . . . .
PVDF Pumps: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
with aluminum center section 49 lb (22 kg). . . . . . . . . . . . . . . .
Polypropylene Plus Pumps:. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
with stainless steel center section 49 lb (23 kg). . . . . . . . . . . . .
PVDF Pumps: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
with stainless steel center section 63 lb (30 kg). . . . . . . . . . . . .
Sound power level 108 dBa. . . . . . . . . . . . . . . . . . . . . . . . . .
* Noise level at 70 psi, 50 cycles/min 72 dBa. . . . . . . . . . . .
Maximum operating temperature 150_ F (65.5_ C). . . . . . . . . .
Air inlet size 1/2 npt(f). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid inlet size. 1–1/2 in. raised face flange. . . . . . . . . . . . . . . .
Fluid outlet size. 1–1/2 in. raised face flange. . . . . . . . . . . . . . .
Wetted parts Vary by model. See pages 28 to 31. . . . . . . . . .
Geolastr and Santoprener are registered trademarks of the
Monsanto Co.
Loctite
r is a registered trademark of the Loctite Corporation.
* Noise levels measured with the pump mounted on the floor,
using Rubber Foot Kit 236452. Sound power measured per
ISO Standard 9216.
Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head:
To supply 60 gpm (227 liters) fluid flow (horizontal scale) at 40 psi (0.28 MPa, 2.8 bar) discharge head pressure (vertical scale) requires approximately 50 scfm (1.40 m
feet
(meters)
psi
(bar, MPa)
280
(85.3)
(0.84, 8.4)
240
(73.2)
(0.7, 7.0)
200
(61.0)
(0.56, 5.6)
160
(48.8)
(0.42, 4.2)
120
(36.6)
80
(24.4)
(0.28, 2.8)
#/min) air consumption at 70 psi (0.49 MPa, 4.9 bar) inlet air pressure.
120
100
80
60
A
E
B
C
F
Inlet Air Pressures
A 120 psi air (0.84 MPa, 8.4 bar)
B 100 psi air (0.7 MPa, 7 bar)
C 70 psi air (0.49 MPa, 4.9 bar)
D 40 psi air (0.28 MPa, 2.8 bar)
Air Consumption
E 20 scfm (0.56 m#/min)
F 40 scfm (1.12 m#/min)
G 60 scfm (1.68 m#/min)
H 80 scfm (2.24 m#/min)
G
40
D
40
(12.2)
0
20
(0.14, 1.4)
0
0 153045607590105120
(57)
(114) (170)
FLUID FLOW GPM (lpm)
TEST CONDITIONS
Pump tested in water with PTFE diaphragm and inlet
submerged.
H
(227) (284) (341) (397) (454)
KEY FLUID PRESSURE AND FLOW
SCFM AIR CONSUMPTION
308549 35
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 Graco will provide parts and labor.
Six to Fifteen years Graco will replace defective parts only.
Graco Information
For the latest information about Graco products, visit www.graco.com.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the distributor closest to you:
Phone: 612–623–6921 or Toll Free: 1–800–328–0211 Fax: 612–378–3505
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 308549
For patent information, see www.graco.com/patents.
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES
Copyright 1994, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
36 308549
Graco Headquarters: Minneapolis
S P.O. BOX 1441 S MINNEAPOLIS, MN 55440-1441 S USA
www.graco.com
Revision ZAD December 2013
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