Graco Husky 716 series Operation manual

308573ZAC
EN
Instructions – Parts List
ALUMINUM
HuskyTM 716 Air-Operated
Diaphragm Pump
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. 241906, Series D
Buna-N diaphragms and balls
Restricted air inlet to maximize pumping efficiency for evacuation systems
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 limit-
ed by the materials of the pump interior wetted parts.
See Technical Data for the maximum fluid operating
temperature for your specific pump model.

2 308573
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Torque Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Performance Charts . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Graco Standard Husky Pump Warranty . . . . . . . . . . . 28
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
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 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.
•Do not use 1,1,1–trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or
fluids containing such solvents in aluminum pumps. Such use could result in a serious chemical
reaction, with the possibility of explosion.
•Do not use hoses to pull equipment.
•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).
•Do not lift pressurized equipment.
•Wear hearing protection when operating this equipment.
•Comply with all applicable local, state, and national fire, electrical, and safety regulations.

308573 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.
•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 9.
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 and bond the equipment. Refer to Grounding on page 4.
•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. See Air Exhaust Ventilation on page 9.
•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 308573
Installation
General Information
Check your system electrical continuity after the initial
installation, and then set up a regular schedule for
checking continuity to be sure proper grounding is
maintained.
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 and
bonding instructions for your area and type of equipment.
Ground and bond all of this equipment:
•Pump: attach a ground wire (Y) to the grounding strip
(111) with the screw (121), lockwasher (122) and nut
(123), as shown in Fig. 1, and per code. Connect the
clamp end of the ground wire to a true earth ground.
Order Part No. 222011 Ground Wire and Clamp.
Fig. 1
•Air and fluid hoses: use only electrically conductive
hoses.
•Air compressor: follow the manufacturer’s
recommendations.
•Suction device nozzle: must be bonded to metal
container from which it is suctioning by firm metal-to-
metal contact to a properly grounded suction hose
and pump.
•Piping, valves and fittings: use only electrically
conductive materials. Bond and ground per code.
•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.
•Waste storage tank: follow your local code.
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 OR EXPLOSION
HAZARD on page 3.
9247A
Y
111
121
122
123

308573 5
Installation
Typical Installation Description
Fig. 2 shows a system for the fast evacuation of gear oil
from vehicles. One centrally-mounted Husky 716 pump
can have suction line drops to up to four service bays,
when activated singly. Interchangeable, nylon suction
wands are available to fit most differentials. One control
valve at each bay remotely activates the pump and quickly
suctions the gear oil. This system can also be used to
remove waste oil from rolling waste oil drain carts, using a
high capacity wand.
Fig. 3 shows a system for the fast evacuation of waste oil
from rolling waste oil receivers, or for general fluid transfer
applications. In waste oil evacuation systems, roll the
receivers up to a centrally mounted Husky 716 pump.
Couple a quick disconnect coupler to a mating connector
on the waste oil receiver. Turn on the pump and the oil is
quickly evacuated from the receiver and sent to a waste oil
storage tank.
General Information
•The Typical Installations in Figs. 2 and 3 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.
•Installation and use must be in accordance with the
Flammable and Combustible Liquids Code (NFPA
30) and Automotive and Marine Service Station Code
(NFPA 30A) and must comply with all local, state and
federal codes.
•Use a compatible, liquid thread sealant on all male
threads. Tighten all connections firmly to avoid air or
fluid leaks.
•Reference numbers and letters in parentheses refer
to the callouts in the Figures and the parts lists on
pages 20 to 21.
•Always mount the pump in the upright position as
shown in Figs. 2 and 3. A non-upright position
prevents checks from operating properly.
Tightening Screws Before First Use
Before using the pump for the first time, check and
retorque all external fasteners. See Torque Sequence,
page 22. After the first day of operation, retorque the
fasteners. Although pump use varies, a general guideline
is to retorque fasteners every two months.
Mountings
•Be sure the mounting surface can support the weight
of the pump, hoses, and accessories, as well as the
stress caused during operation.
•The Husky 716 Pump can be used in a variety of
installations. See Figs. 2 and 3 for examples.
•Secure the pump with screws and nuts.
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.
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.
•Read TOXIC FLUID HAZARD on page 3.
•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.

6 308573
Installation
Example of a Gear Oil Receiver Evacuation System
Fig. 2
Fig. 3
9249A
H
A
C
D
G
J
L
Y
F
B
E
J
J
J
JJ
J
KK
K
KEY
A Pump air regulator
B Air line quick coupler (required)
C Fluid drain valve (required)
D Control valve
E Suction wand
F Suction hose
G Fluid quick coupler
H Husky 716 pump
J Electrically conductive, bonded air
supply line
K Electrically conductive, bonded fluid
line to pump
L Electrically conductive, bonded
wasteoil linetostorage tank
Y Ground wire (required; See page 4
for installation instructions. Pump
must be properly grounded and
entire system electrically bonded.)
Bay 1 Bay 2 Bay 3
H
A
C
L
Y
F
B
J
J
J
M
G
D
S
9250A
Example of a Waste Oil Evacuation
System, or General Fluid Transfer
Application
Shown with fluid inlet and outlet ports facing
forward (see page 8).
NOTE: Air inlet restrictor may be removed
for higher flow capabilities.
KEY
A Pump air regulator
B Air line quick coupler (required)
C Fluid drain valve (required)
D Wall-mount bracket (Part No. 224835)
F Electrically conductive suction hose
G Fluid quick coupler
H Husky 716 pump
J Electrically conductive, bonded air supply line
L Electrically conductive, bonded waste oil line to storage
tank M Waste oil receiver
S 90° Elbow (required for wall mount applications)
Y Ground wire (required; See page 4 for installation
instructions. Pump must be properly grounded and
entire system electrically bonded.)

308573 7
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 and bonded.
2. Use the air regulator (A) to control the pump fluid
outlet pressure. The fluid pressure will be the same
as the setting on the regulator gauge.
3. Install an electrically conductive, flexible air hose (J)
between the regulator (A) and the 1/4 npt(f) pump air
inlet (air restrictor in evacuation applications). Use a
minimum 1/4 in. (6.3 mm) ID air hose. Screw an air
line quick disconnect coupler (B) onto the end of the
air hose (J), and screw the mating fitting into the
pump air inlet snugly. Do not connect the coupler (B)
to the fitting yet.
Fluid Supply Line
•Use electrically conductive fluid hoses (J or F). Be
sure the lines are bonded all the way from the fluid
supply to the grounded pump.
•The pump fluid inlet is 3/4 npt(f). See Fig. 4. Screw
the fluid fitting into the pump inlet snugly. Do not
overtighten.
•For the Gear Oil Evacuation System, install a control
valve (D) and an appropriate wand (E). See Fig. 2.
•For the Waste Oil Receiver Evacuation System,
connect an appropriate suction hose (F) and fluid
quick coupler (G) between the pump fluid inlet and
the waste oil receiver (M). See Fig. 3.
•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 (100 kPa,
1.0 bar), diaphragm life will be shortened.
Fluid Outlet Line
•Use electrically conductive fluid hoses (L). Be sure
the lines are bonded all the way from the grounded
pump to the waste storage tank.
•The pump fluid outlet is 3/4 npt(f). See Fig. 4. Screw
the fluid fitting into the pump outlet snugly. Do not
overtighten.
•Install a fluid drain valve (C) near the fluid outlet. See
the WARNING above.
•Also read Fluid Pressure Relief Valve, on page 8.
WARNING
An air line quick coupler (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
Before connecting the permanent air line to the
regulator (A), blow out all lines with air to remove
contaminants that can clog or damage the regulator,
hose, or pump air valve.
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 9.
WARNING
A fluid drain valve (C) is required in your system to
relieve pressure in the hose if it is plugged. See
Figs. 2 and 3. 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.

8 308573
Installation
Changing the Orientation of the Fluid Inlet
and Outlet Ports
You can change the direction of the fluid inlet and outlet
manifolds (102), if desired. Model 241906 is shipped with
the fluid inlet manifold pointing toward the air inlet and the
fluid outlet manifold pointing away from the air inlet. See
Fig. 4.
1. Remove the bolts (105) holding the manifold (102) to
the covers (101). Save the attaching hardware.
2. Turn the manifold to the desired position, and reinstall
the hardware. Torque the bolts (105) to 80 to 90 in–lb
(9 to 10 N•m). See Torque Sequence, page 22.
Torque to 80–90 in–lb (9–10 NSm). See Torque Sequence, page
22.
1/4 npt(f) Air Inlet
3/4 npt(f) Fluid Inlet
3/4 npt(f) Fluid Outlet (on opposite side)
Fig. 4
Fluid Pressure Relief Valve
Pressure Relief Kit 238428 is available for use on
aluminum Husky 716 pumps and may be purchased
separately.
KEY
N 3/4 npt(f) Fluid Inlet Manifold
P 3/4 npt(f) Fluid Outlet Manifold
R Pressure Relief Valve, Part No. 113497
Install valve between fluid inlet and outlet ports. Other parts
shown are included in Pressure Relief Kit 238428.
Fig. 5
1
2
3
4
9257A
1
2
3
4
102
102
105
101
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.
5
9285A
R
N
P
5

308573 9
Installation
Air Exhaust Ventilation
VENTING EXHAUST AIR
See Fig. 2 for accessories
KEY
W Muffler
X Electrically Conductive Air Exhaust Hose
Z Container for Remote Air Exhaust
The air exhaust port is 3/8 npt(f). Do not restrict the air
exhaust port. Excessive exhaust restriction can cause
erratic pump operation.
To exhaust to a remote location:
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.
6.
Fig. 6
WARNING
FIRE AND EXPLOSION HAZARD
Be sure to read FIRE OR EXPLOSION
HAZARD and TOXIC FLUID HAZARD on
page 3, before operating 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.
W
X
Z
9253A

10 308573
Operation
Pressure Relief Procedure
1. Close the air regulator by turning counterclockwise as
far as possible.
2. Disconnect the air line quick coupler to relieve air
pressure.
3. Open the dispensing valve, if used.
4. 4. Open the fluid drain valve to relieve all fluid
pressure, having a container ready to catch the
drainage.
Flush the Pump Before First Use
The pump was tested in water. If water could contaminate
the fluid you are pumping, flush the pump thoroughly with
a compatible solvent. Follow the steps under Starting and
Adjusting the Pump.
Starting and Adjusting the Pump
All Systems
1. Be sure the pump is properly grounded and bonded.
Read FIRE OR EXPLOSION HAZARD on page 3.
2. 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.
3. For the first startup: Connect the fluid inlet hose to
the pump and place the other end of the hose in a two
quart container of oil. Start the pump following Steps
1, 3 and 4 in either of the following startup
procedures. When the container is empty, shut off the
air to the pump and reconnect the hose to the suction
line. This procedure wets the pump internal parts to
ensure maximum suction.
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.
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
•Are instructed to relieve pressure
•Stop pumping
•Check, clean, or service any system equipment
•Install or clean fluid nozzles
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 at left before lifting the pump.