Graco 308797R, 241407 User Manual
Instructions--Parts List
ALUMINUM
Huskyt 716 Air--operated
Diaphragm Pumps
Used to evacuate and transfer fluids.
100 psi (0.7 MPa, 7 bar) Maximum Fluid Working Pressure
100 psi (0.7 MPa, 7 bar) Maximum Air Input Pressure
Part No. 241407, Series D
with two--direction manifolds
Part No. 241408, Series D
with single--direction manifolds
Patents Pending
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
308797R
Model No. 241407
9246A
Table of Contents
Warnings 2......................................
Installation 4.....................................
Operation 10....................................
Maintenance 1 1..................................
Troubleshooting 12...............................
Service 13......................................
Parts Drawing 18.................................
Parts List 19.....................................
Torque Sequence 20.............................
Technical Data 21................................
241407 and 241408 Repair Kits 21.................
Dimensions 22...................................
Performance Charts 23...........................
Graco Standard Warranty 26......................
Graco Information 26.............................
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.
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.
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 your Graco distributor.
D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
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 100 psi (0.7 MPa, 7 bar) maximum working pressure at 100 psi (0.7 MPa,
7 bar) maximum incoming air pressure.
D Use fluids and solvents that are compatible with the equipment wetted parts. Refer to the Techni-
cal Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warnings.
D Route 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).
D Wear hearing protection when operating this equipment.
D Do not lift pressurized equipment.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
D Do not use 1.1.1--trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents in pressurized aluminum equipment. Such use could result in a
chemical reaction, with the possibility of explosion.
2 308797
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 Do not lift a pump under pressure. If dropped, the fluid section may rupture. Always follow the
Pressure Relief Procedure on page 10 before lifting the pump.
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. Read Air Exhaust Ventilation on
page 6.
D 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.
D Ground the equipment. Refer to Grounding on page 8.
D 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.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being pumped.
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. Read Air Exhaust Ventilation on page 6.
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.
3308797
Installation
General Information
D The Typical Installations in Fig. 2 are only guides
for selecting and installing system components.
Contact your Graco distributor for assistance in
planning a system to suit your needs.
D Always use Genuine Graco Parts and Accessories.
D Use a compatible, liquid thread sealant on all male
threads. Tighten all connections firmly to avoid air
or fluid leaks.
CAUTION
Safe Operating Temperatures
Minimum: 40_ F(4_ C)
Maximum: 225_ F (107_ 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.
Tightening Threaded Fasteners Before
First Use
Before using the pump for the first time, check and
retorque all external fasteners. See Torque Se-
quence, page 20. After the first day of operation,
retorque the fasteners. Although pump use varies, a
general guideline is to retorque fasteners every two
months.
Toxic Fluid Hazard
Read Toxic Fluid Hazard
on page 3.
Use fluids and solvents that 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.
Mountings
D These pumps can be used in a variety of installa-
tions. Be sure the mounting surface can support
the weight of the pump, hoses, and accessories, as
well as the stress caused during operation.
D Fig. 2 shows some installation examples. On all
installations, mount the pump using screws and
nuts.
Pumping High -Density Fluids
High density fluids may prevent the lighter non-metallic
check valve balls from seating properly, which reduces
pump performance significantly. Stainless steel balls
should be used for such applications.
4 308797
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. 2. 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.
CAUTION
The pump exhaust air may contain contaminants.
Ventilate to a remote area if the contaminants could
affect your fluid supply. Read Air Exhaust Ventila-
tion on page 6.
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. 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. 2).
b. Locate one bleed-type master air valve (B)
close to the pump and use it to relieve trapped
air. Read 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.
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 in. (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
D If using a conductive (acetal) pump, use conductive
hoses. If using a non-conductive pump, ground the
fluid system. Read Grounding on page 8. The
fluid inlet port is 3/4 in.
D At inlet fluid pressures greater than 15 psi
(0.1 MPa, 1 bar), diaphragm life will be shortened.
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
Fig. 2. 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 in. 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. 2).
See Air Line, step 1a, for another method of
controlling pressure.
c. The air line filter (F) removes harmful dirt and
moisture from the compressed air supply.
3. Install a fluid drain valve (H) near the fluid outlet.
Read the WARNING above.
5308797
Installation
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. 1.
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.
1
Install valve between fluid inlet and outlet ports.
2
Connect fluid inlet line here.
3
Connect fluid outlet line here.
3
Air Exhaust Ventilation
Read Toxic Fluid Hazard on
page 3.
Read Fire and Explosion
Hazard on page 3.
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. 2 .
The air exhaust port is 3/8 npt(f). Do not restrict the air
exhaust port. Excessive exhaust restriction can cause
erratic pump operation.
Fig. 1
See Venting Exhaust Air in Fig. 2. Exhaust to a
remote location as follows:
1
2
9073A
1. Remove the muffler (W) from the pump air exhaust
port.
2. Install an electrically conductive air exhaust hose
(X) and connect the muffler to the other end of the
hose. The minimum size for the air exhaust hose
is 3/8 in. (10 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.
3. Place a container (Z) at the end of the air exhaust
line to catch fluid in case a diaphragm ruptures.
See Fig. 2.
6 308797
Installation
ABOV
E-GROUND TRANSFER INSTALLATION
C
E
F
B
G
Y
A
D
N
L
55-GALLON BUNG PUMP INSTALLATION
KEY
J
K
H
9074A
APump
B Bleed-type master air valve
(required for pump)
C Electrically conductive
air supply line
D Air line quick disconnect
E Master air valve (for accessories)
F Air line filter
G Pump air regulator
H Fluid drain valve (required)
J Fluid regulator (optional)
K Electrically conductive
fluid supply hose
L Fluid suction line
M Underground storage tank
N Wall mounting bracket
Y Ground wire (required; see page 8
for installation instructions)
M
K
Fig. 2
KEY
APump
C Electrically conductive air supply line
D Air line quick disconnect
H Fluid drain valve (required)
K Electrically conductive fluid supply hose
L Fluid suction line
Y Ground wire (required; see page 8
for installation instructions)
KEY
W Muffler
X Electrically Conductive Air Exhaust Hose
Z Container for Remote Air Exhaust
All wetted and non-wetted pump parts must be
compatible with the fluid being pumped.
A
C
D
H
Y
L
9075A
VENTING EXHAUST AIR
Z
W
X
04054
7308797
Installation
Grounding
WARNING
FIRE AND EXPL OSION 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 3.
The metal Husky 716 pumps have a grounding
strip connecting the vee clamps (109). Attach a
ground wire to the grounding strip with the screw,
lockwasher, and nut as shown in the Grounding
Detail on page 18.
When pumping conductive flammable fluids, al-
ways ground the entire fluid system by making
sure the fluid system has an electrical path to a
true earth ground (see Fig. 3).
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
12
than 2 x 10
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 equipment.
NOTE: See the WARNING above. Fig. 3 shows a
recommended method of grounding flammable fluid
containers during filling.
-- 1 2
Siemans/me-
Ground all of this equipment:
D Pump: The metal pump has a grounding strip in
front of the center housing. Connect the non-clamp
end of the ground wire to the grounding strip and
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 Air and fluid hoses: Use only electrically conductive
hoses.
D Air compressor: Follow the manufacturer’s recom-
mendations.
D 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-conductive surface, such as paper or cardboard, which
interrupts the grounding continuity.
D Fluid supply container: Follow the local code.
KEY
APump
H Fluid drain valve (required)
S Dispense valve
T Fluid drain line
Y Fluid section grounding via grounding strip or grounding
screw (required for metal and acetal pumps)
Z Container ground wire (required)
1
Hose must be conductive.
2
Dispense valve nozzle must be in contact with container.
Y
Z
GROUNDINGAPUMP
Y
A
H
T
1
8 308797
Fig. 3
2
S
9079A
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