Graco 241407 Operation manual

308797S
Instructions – Parts List
ALUMINUM
HuskyTM 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.
II 2 GD
Ex h IIC 66°C...135°C Gb
Ex h IIIC T135°C Db
ATEX T-code rating is dependent on the
temperature of the fluid being pumped. Fluid
temperature is limited by the materials of the
pump interior wetted parts. See Technical
Data for the maximum fluid operating tem-
perature for your specific pump model.
9246A
Model No. 241407
EN

2 308797
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
241407 and 241408 Parts Drawing . . . . . . . . . . . . . . 18
241407 and 241408 Repair Kits . . . . . . . . . . . . . . . . . 21
Husky 716 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 22
Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Graco Standard Husky Pump Warranty . . . . . . . . . . . 26
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Symbols
Warning Symbol
This symbol alerts you to the possibility of serious injury or
death if you do not follow the instructions.
Caution Symbol
This symbol alerts you to the possibility of damage to or
destruction of equipment if you do not follow the
instructions.
WARNING
CAUTION
WARNING
INSTRUCTIONS
EQUIPMENT MISUSE HAZARD
Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.
•This equipment is for professional use only.
•Read all instruction manuals, tags, and labels before operating the equipment.
•Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
•Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
•Check equipment daily. Repair or replace worn or damaged parts immediately.
•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.
•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.
•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).
•Wear hearing protection when operating this equipment.
•Do not lift pressurized equipment.
•Comply with all applicable local, state, and national fire, electrical, and safety regulations.
•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.

308797 3
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.
•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.
•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. Read Air Exhaust Ventilation on
page 6.
•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 8.
•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.
•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. Read Air Exhaust Ventilation on page 6.
•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.
WARNING

4 308797
Installation
General Information
•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.
•Always use Genuine Graco Parts and Accessories.
•Use a compatible, liquid thread sealant on all male
threads. Tighten all connections firmly to avoid air or
fluid leaks.
Tightening Threaded Fasteners Before First
Use
Before using the pump for the first time, check and
retorque all external fasteners. See Torque Sequence,
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
•These pumps can be used in a variety of installations.
Be sure the mounting surface can support the weight
of the pump, hoses, and accessories, as well as the
stress caused during operation.
•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.
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.

308797 5
Installation
Air Line
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.
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 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
•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.
•At inlet fluid pressures greater than 15 psi (0.1 MPa, 1
bar), diaphragm life will be shortened.
Fluid Outlet Line
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.
3. Install a fluid drain valve (H) near the fluid outlet.
Read the WARNING above.
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 Ventilation
on page 6.
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.

6 308797
Installation
Fluid Pressure Relief Valve
Install valve between fluid inlet and outlet ports.
Connect fluid inlet line here.
Connect fluid outlet line here.
Air Exhaust Ventilation
The air exhaust port is 3/8 npt(f). Do not restrict the air
exhaust port. Excessive exhaust restriction can cause
erratic pump operation.
See Venting Exhaust Air in Fig. 2. Exhaust to a remote
location as follows:
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.
Fig. 1
CAUTION
Some systems may require installation of a pressure
relief valve at the pump outlet to prevent
overpresurization 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
2
3
1
2
3
9073A
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.

308797 7
Installation
ABOVE-GROUND TRANSFER INSTALLATION
55-GALLON BUNG PUMP INSTALLATION
VENTING EXHAUST AIR
Fig. 2
9074A
H
J
A
CD
K
L
M
N
Y
E
F
B
G
9075A
H
A
CD
K
L
Y
W
X
Z
04054
KEY
A Pump
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)
KEY
A Pump
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.

8 308797
Installation
Grounding
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.
Ground all of this equipment:
•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.
•Air and fluid hoses: Use only electrically conductive
hoses.
•Air compressor: Follow the manufacturer’s
recommendations.
•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.
•Fluid supply container: Follow the local code.
GROUNDING A PUMP
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)
Hose must be conductive.
Dispense valve nozzle must be in contact with container.
Fig. 3
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 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, always
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 10-12 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.
1
2
9
A
H
S
T
Z
2
1
Y
Y

308797 9
Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
Fig. 4. You can change the orientation of the fluid inlet and
outlet ports by repositioning the manifolds.
2. Remove four manifold bolts (105).
3. Turn manifold to desired position, reinstall bolts, and
torque to 80 to 90 in-lb (9 to 10 N•m). See Torque
Sequence, page 20.
NOTE: Make sure all manifold o-rings are positioned
correctly before you fasten the manifold. Manifold o-rings
(139) are shown in Fig. 6.
Fig. 4
1.
Relieve the pressure. See
Pressure Relief Procedure on
page 10.
1
1105
9071A
1105
Torque to 80 to 90 in-lb (9 to 10 N•m). See Torque
Sequence, page 20.
outlet
inlet

10 308797
Operation
Pressure Relief Procedure
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,
and have a container ready to catch the drainage.
Flush Pump Before First Use
The pump was tested with water. If water could
contaiminate the fluid you are pumping, flush the pump
thoroughly with a compatible solvent before using the
equipment. Follow the steps under Starting and
Adjusting Pump.
Starting and Adjusting Pump
4. Check all fittings to be sure they are tight. Use a
compatible liquid thread sealant on all male threads.
Tighten the fluid inlet and outlet fittings snugly. Do not
overtighten the fittings into the pump.
5. Place the suction tube (if used) in the fluid to be
pumped.
NOTE: If the inlet fluid 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.
6. Place the end of the fluid hose (K) into an appropriate
container.
7. Close the fluid drain valve (H).
8. With the pump air regulator (G) closed, open all
bleed-type master air valves (B, E).
9. If the fluid hose has a dispensing device, hold it open
while continuing with the following step. Slowly open
the air regulator (G) 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.
Operation of Remote Piloted Pumps
1. Fig. 2 and Parts Drawings. Follow preceding steps 1
through 8 of Starting and Adjusting Pump.
2. Open air regulator (G).
3. Pump will operate when air pressure is alternately
applied to push type connectors (16).
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
PRESSURIZED EQUIPMENT HAZARD
The equipment stays pressurized until pressure is
manually relieved. To reduce the risk of serious injury
from pressurized fluid, accidental spray, or splashing
fluid, follow this procedure whenever you
•Are instructed to relieve pressure
•Stop pumping
•Check, clean, or service any system equipment
•Install or clean fluid nozzles
1.
Read Toxic Fluid Hazard on
page 3.
2.
If lifting the pump, follow the Pressure
Relief Procedure above.
3.
If lifting the pump, follow
the Pressure Relief
Procedure above.
WARNING
The pump may cycle once before the external
signal is applied. Injury is possible. If pump
cycles, wait until end before proceeding.
At the end of the work shift, relieve the
pressure as described in Pressure Relief
Procedure at left.