Graco Husky 715 User manual

308–444
Rev. R
Supersedes Rev. P
First choice when
quality counts. t
04025
INSTRUCTIONS–PARTS LIST
INSTRUCTIONS
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
ACETAL AND POLYPROPYLENE
Huskyt715 Air-Operated
Diaphragm Pumps
100 psi (0.7 MPa, 7 bar) Maximum Fluid Working Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure
*Model No. D61–_____ Acetal Pumps, Series E
*Model No. D62–_____ Polypropylene Pumps, Series E
*Model No. D6A–_____ Acetal BSPT Pumps, Series E
*Model No. D6B–_____ Polypropylene BSPT Pumps, Series E
*NOTE: Refer to the Pump Matrix on page 26 to
determine the Model No. of your pump.
US Patent Nos. 4,789,131 and 4,867,653
Other US and Foreign Patents Pending
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ECOPYRIGHT 1995, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001

2 308-444
Table of Contents
Symbols 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump Matrix 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Kit Matrix 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Hole Layouts 33. . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data and Performance Chart 34. . . . . . . . . . .
Graco Standard Warranty 36. . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 36. . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols
Warning Symbol
WARNING
This symbol alerts you to the possibility of serious
injury or death if you do not follow the instructions.
Caution Symbol
CAUTION
This symbol alerts you to the possibility of damage to
or destruction of equipment if you do not follow the
instructions.
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
DThis equipment is for professional use only.
DRead all instruction manuals, tags, and labels before operating the equipment.
DUse the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
DDo not alter or modify this equipment. Use only genuine Graco parts and accessories.
DCheck equipment daily. Repair or replace worn or damaged parts immediately.
DDo not exceed the maximum working pressure of the lowest rated component in your system. This
equipment has a 100 psi (0.7 MPa, 7 bar) maximum working pressure at 100 psi (0.7 MPa,
7 bar) maximum incoming air pressure.
DUse fluids and solvents which are compatible with the equipment wetted parts. Refer to the Tech-
nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
DDo not use hoses to pull equipment.
DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not expose
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
DWear hearing protection when operating this equipment.
DDo not lift pressurized equipment.
DComply with all applicable local, state, and national fire, electrical, and safety regulations.

 
WARNING
TOXIC FLUID HAZARD
Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,
inhaled, or swallowed.
Know the specific hazards of the fluid you are using.
Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,
state and national guidelines.
Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and
solvent manufacturer.
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.
 Never use an acetal pump to pump acids. Take precautions to avoid acid or acid fumes from
contacting the pump housing exterior. Stainless steel parts will be damaged by exposure to acid
spills and fumes.
FIRE AND EXPLOSION HAZARD
Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and
result in a fire or explosion and serious injury.
Ground the equipment. Refer to Grounding on page 5.
 Never use a polypropylene pump with non-conductive flammable fluids as specified by your local
fire protection code. Refer to Grounding on page 5 for additional information. Consult your fluid
supplier to determine the conductivity or resistivity of your fluid.
If there is any static sparking or you feel an electric shock while using this equipment, stop pump-
ing immediately. Do not use the equipment until you identify and correct the problem.
Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being pumped.
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.
Keep the work area free of debris, including solvent, rags, and gasoline.
Electrically disconnect all equipment in the work area.
Extinguish all open flames or pilot lights in the work area.
Do not smoke in the work area.
Do not turn on or off any light switch in the work area while operating or if fumes are present.
Do not operate a gasoline engine in the work area.

 
Installation
General Information
DThe Typical Installations in Figs. 3 to 5 are only
guides for selecting and installing system compo-
nents. Contact your Graco distributor for assistance
in planning a system to suit your needs.
DAlways use Genuine Graco Parts and Accessories.
DUse a compatible, liquid thread sealant on all male
threads. Tighten all connections firmly to avoid air
or fluid leaks.
DReference numbers and letters in parentheses refer
to the callouts in the Figures and the parts lists on
pages 28 to 31.
Tightening Threaded Fasteners Before
First Use
After unpacking the pump, and before using it for the
first time, check and retorque all external fasteners.
See the Service section for torque specifications.
After the first day of operation, retorque the fasteners
again. Although the recommended frequency for
retorquing fasteners varies with pump usage, a general
guideline is to retorque fasteners every two months.
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.
1. Read TOXIC FLUID HAZARD on page 3.
2. Use fluids and solvents which are compatible
with the equipment wetted parts. Refer to the
Technical Data section of all equipment manu-
als. Read the fluid and solvent manufacturer’s
warnings.
CAUTION
Safe Operating Temperature
Minimum: 40 _ F (4.4 _ C); Maximum: 150 _ F (66 _ C).
These temperatures are based upon mechanical
stress only and may be significantly altered by
pumping certain chemicals. Consult engineering
guides for chemical compatibilities and temperature
limits, or contact your Graco distributor.
Mountings
DBe sure the mounting surface can support the
weight of the pump, hoses, and accessories, as
well as the stress caused during operation.
DThe Husky 715 Pump can be used in a variety of
installations. See Figs. 3 to 5 for some examples.
DWhen installed on a drum (see Fig. 4), slide the
pump’s feet securely under the rim of the drum.
DOn all other installations, mount the pump using
screws and nuts.
Pumping High Density or Abrasive Fluids
High density fluids prevent the lightweight PTFE and
buna-N check valve balls from seating properly, which
reduces pump performance significantly. Use stainless
steel balls for such applications (see page 31). Refer
to page 21 to change the balls.
Dual Manifolds
Dual manifold kits are available to enable you to pump
two fluids simultaneously, or to mix two fluids in the
pump. Order Part No. 237–633 for acetal pumps and
Part No. 237–632 for polypropylene pumps.

308-444 5
Installation
Grounding
WARNING
FIRE AND EXPLOSION HAZARD
This pump must be grounded. Before
operating the pump, ground the system
as explained below. Also read the sec-
tion FIRE AND EXPLOSION HAZARD
on page 3.
The acetal pump contains stainless steel fibers,
which makes the wetted parts conductive.
Attaching the ground wire to the grounding strip
grounds the air motor and the wetted parts.
The polypropylene pump is not conductive.
Attaching the ground wire to the grounding strip
grounds only the air motor.
When pumping conductive flammable fluids,
always ground the entire fluid system by making
sure the fluid system has an electrical path to a
true earth ground (see Fig. 2). Never use a
polypropylene 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 10–12
Siemans/meter (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.
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 equip-
ment.
Ground all of this equipment:
 Pump : Attach a ground wire (Y) to the grounding
strip (107) with the screw (117), lockwasher (118)
and nut (119), as shown in Fig. 1. Connect the
clamp end of the ground wire to a true earth
ground. To order a ground wire and clamp, order
Part No. 222–011.
NOTE: When pumping conductive flammable fluids
with a polypropylene pump, always ground the fluid
system. See the WARNING at left. Fig. 2 shows a
recommended method of grounding flammable fluid
containers during filling.
04031A
Fig. 1
Y
107
117
118
119
 Air and fluid hoses : Use only electrically conductive
hoses.
 Air compressor : Follow the manufacturer’s recom-
mendations.
 Solvent pails used when flushing : Follow the local
code. Use only grounded metal pails, which are
conductive. Do not place the pail on a non-conduc-
tive surface, such as paper or cardboard, which
interrupts the grounding continuity.
 Fluid supply container: Follow the local code.

6 308-444
Installation
05104
KEY
A Husky 715 pump
H Fluiddrainvalve(required)
S Dispensevalve
T Fluiddrainline
Y Airmotor groundwire(required;
seepage 5for installationinstructions)
Z Containergroundwire(required)
Fig. 2
2
GROUNDING A PUMP
Dispensevalve nozzle must be in contact with container.
A
H
S
T
Y
Z
1
2
1Hose must be conductive.

308-444 7
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. See Fig. 3. 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 contamina-
tion from hazardous fluids.
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. Install the air line accessories as shown in Fig. 3.
Mount these accessories on the wall or on a
bracket. Be sure the air line supplying the acces-
sories is electrically conductive.
a. The fluid pressure can be controlled in either
of two ways. To control it on the air side, install
an air regulator (G). To control it on the fluid
side, install a fluid regulator (J) near the pump
fluid outlet (see Fig. 3).
b. Locate one bleed-type master air valve (B)
close to the pump and use it to relieve trapped
air. See the WARNING above. 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
(C) between the accessories and the 1/4 npt(f)
pump air inlet. Use a minimum 1/4” (6.3 mm) ID air
hose. Screw an air line quick disconnect coupler
(D) onto the end of the air hose (C), and screw the
mating fitting into the pump air inlet snugly. Do not
connect the coupler (D) to the fitting yet.
Fluid Suction Line
If using a conductive (acetal) pump, use conductive
hoses. If using a non-conductive (polypropylene)
pump, ground the fluid system. See Grounding on
page 5. The pump fluid inlet is 3/4 npt(f). See
Fig. 6. Screw the fluid fitting into the pump inlet
snugly.
If the 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.
At inlet fluid pressures greater than 15 psi
(0.1 MPa, 1 bar), diaphragm life will be shortened.
See the Technical Data on page 34 for maximum
suction lift and flow rate loss at various lift dis-
tances.
Fluid Outlet Line
WARNING
A fluid drain valve (H) is required in your system to
relieve pressure in the hose if it is plugged. See
Figs. 3 to 5. 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.
1. Use electrically conductive fluid hoses (K). The
pump fluid outlet is 3/4 npt(f). See Fig. 6. Screw
the fluid fitting into the pump outlet snugly. Do not
overtighten.
2. Install a fluid regulator (J) at the pump fluid outlet
to control fluid pressure, if desired (see Fig. 3).
See Air Line, step 1a, for another method of
controlling pressure.
3. Install a fluid drain valve (H) near the fluid outlet.
See the WARNING above.

 
Installation
04032A
Fig. 3
KEY
A Husky 715 pump
B Bleed-typemaster airvalve
(requiredforpump)
C Electricallyconductive
airsupply line
D Air line quick disconnect
E Master air valve (for accessories)
F Airline filter
G Pumpairregulator
H Fluiddrainvalve(required)
J Fluidregulator(optional)
K Electricallyconductive
fluidsupply hose
L Fluidsuctionline
M Undergroundstoragetank
N Wallmountingbracket
Y Groundwire (required; see page 5
forinstallationinstructions)
H
JABOVE-GROUND
TRANSFER INSTALLATION
A
CDG
K
L
M
N
Y
F BE
04034A
04033
Fig. 4
KEY
A Husky 715 pump
C Electricallyconductive airsupply line
D Air line quick disconnect
H Fluiddrainvalve(required)
K Electricallyconductive fluidsupply hose
L 55-gallonbungkit221–094
Y Groundwire (required; see page 5
forinstallationinstructions)
H
55-GALLON BUNG PUMP INSTALLATION
See Fig. 3 for air line accessories
A
CD
K
L
YA
1Slidepump feet securely
underdrumrim.
1

308-444 9
Installation
05112A
Fig. 5
AIR SPRAY INSTALLATION
A
F E
KEY
A Husky 715 pump
C Electricallyconductive air lineto pump
E Gun air line shutoff valve
F Airline filter
G Gunairregulator
H Fluiddrainvalve(required)
K Electricallyconductive fluidsupply hose
P Circulatingvalve
R Electricallyconductive air line to gun
S Air spray gun
T Electricallyconductivefluidreturnline
U 5-gallonpailmountkit221–095
V Agitatorkit221–096
Y Groundwire (required; see page 5
forinstallationinstructions)
G
K
P
R
S
T
U
V
Y
H
C

10 308-444
Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
You can rotate the fluid inlet and outlet manifolds (102)
to three positions. As shipped, the fluid inlet manifold
points down and the fluid outlet manifold points toward
from the air valve (A). See Fig. 6.
1. Remove the four nuts (105) and bolts (104) from
each end of the manifold (102).
2. Turn the manifold to the desired position, and
reinstall the bolts and nuts. Torque to 20 to 25 in-lb
(2.3 to 2.8 N-m).
NOTE: If the manifold is difficult to rotate, loosen the
nuts (114) holding the clamps (113). After turning the
manifold, torque the nuts to 75 to 85 in-lb (8.5 to
9.6 N-m).
04025
Fig. 6
1
3
4
2
Torqueto 20 to 25 in-lb (2.3 to 2.8 N-m).
3/4npt(f)Fluid Inlet
3/4npt(f)Fluid Outlet
1
2
3
4
102
102
104,
105
Torque to 75 to 85 in-lb (8.5 to 9.6 N-m).
A
114
21
Fluid Pressure Relief Valve
CAUTION
Some systems may require installation of a pressure
relief valve at the pump outlet to prevent overpres-
surization and rupture of the pump or hose.
See Fig. 7.
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.
04234
Fig. 7
KEY
A 3/4npt(f)Fluid InletManifold
B 3/4npt(f)FluidOutletManifold
C Pressure Relief Valve
Part No. 110–134(Aluminum)
Part No. 112–119 (StainlessSteel)
1
3
2Connectfluidinletline here.
Installvalve betweenfluid inletand outlet ports.
Rotatefluidinletmanifold90(see Fig. 6).
C
A
B
1
2
3
4Connectfluidoutletlinehere. 4