INSTRUCTIONS–PARTS LIST
309009
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
Huskyt 716 Texture Pump
100 psi (0.7 MPa, 7 bar) Maximum Air and Fluid Working Pressure
Model 239753, Series A
Table of Contents
Warnings 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service
Air Valve 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duckbill Valves 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diaphragms 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Drawing 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Warranty 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graco Phone Number 14. . . . . . . . . . . . . . . . . . . . . . . . . .
Rev. C
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
9306A
ECOPYRIGHT 1999, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
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 you operate this equipment.
D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor.
D Do not expose the system to rain. Always store the system indoors.
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 100 psi (0.7 MPa, 7 bar) maximum working pressure at 100 psi (0.7 MPa,
7 bar) maximum air pressure.
D The system is for use only with water-based simulated acoustic and wall texture materials.
Use fluids and solvents that are compatible with the equipment wetted part. See Technical Data
section on page 13 and in all other equipment manual. 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 expose
Graco hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).
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 309009
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.
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 The system is for use only with water-based materials. Use fluids compatible with the
equipment wetted parts. See Technical Data section on page 13 and in all other equipment
manuals. Read the fluid and solvent manufacturer’s warnings.
D Ground the equipment. See Grounding in instruction manual 308718.
D If there is any static sparking or you feel an electric shock while using this equipment, stop
spraying immediately. Do not use the equipment until you identify and correct the problem.
D Provide fresh air ventilation to avoid the buildup of fumes from fluid being sprayed.
D Keep the work area free of debris, including solvent, rags, and gasoline.
D Locate the sprayer at least 20 ft (6.1 m) away from any explosive vapors, due to arcing parts.
D Comply with all applicable local, state, and national fire, electrical, and safety regulations.
CLEANING SOLVENT HAZARD WITH PLASTIC PARTS
Use only compatible solvents to clean plastic structural or pressure-containing parts. Many solvents
can degrade plastic parts to the point where they could fail. Such failure could cause serious injury or
property damage. See the Technical Data section on page 13 in this instruction manual and in all
other equipment manuals. Read the fluid and solvent manufacturer’s warnings.
3309009
Operation
See your system manual for operating instructions.
Maintenance
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 the pressure
D Stop pumping
D Check or service any system equipment
D Install or clean the spray nozzle
Threaded Connections
Every six months of use, remove the pump from the
cart, and thoroughly check and tighten all threaded
connections.
D When tightening the vee clamps (48), apply thread
lubricant to the bolts, and be sure to torque the
nuts (49) to 80 to 90 in-lb (9 to 10 N-m). See Fig. 1.
D Torque the manifold bolts (60) and the adapter bolts
(62) to 80 to 90 in-lb (9 to 10 N-m).
D Torque the valve chamber cover (15) to 80 to 100
in-lb (9.0 to 13.6 N-m).
Pressure Relief Procedure
1. Shut off the system.
2. Trigger the gun.
3. Open the gun air valve, if so equipped.
4. Disconnect the power source.
Daily Checks
Before each use, check all hoses for wear or damage,
and replace as necessary. Be sure hose connections
are tight and free of leaks.
Lubrication
The air valve is lubricated at the factory to operate
without additional lubrication. You may provide
additional lubrication after every 50 hours of operation
or every month as follows: Remove the quickdisconnect hose from the air inlet fitting (81), and add
two drops of machine oil into the air inlet. See Fig. 1.
CAUTION
Add two drops of machine oil into air inlet every
1
50 hours of operation.
Apply thread lubricant to bolts, and torque
2
nuts (49) to 80 to 90 in-lb (9 to 10 N-m).
3
Torque to 80 to 90 in-lb (9 to 10 N-m).
4
Torque to 80 to 100 in-lb (9.0 to 13.6 N-m).
1
4
15
3
62
48
2
49
81
Do not over-lubricate the pump. Oil is exhausted
through the muffler (72), which could contaminate
your fluid supply or other equipment. Excessive
lubrication could also cause the pump to malfunction.
4 309009
Fig. 1
72
3
60
9306A
Troubleshooting
See Pressure Relief
Procedure on page 4.
PROBLEM
Pump will not cycle, or cycles once
and stops.
Pump cycles at stall or fails to hold
pressure at stall.
Pump operates erratically. Fluid inlet is clogged. Inspect; clear.
Fluid coming out of pump has air
bubbles.
Exhaust air contains fluid. Diaphragm (36) is ruptured. Replace. See page 8.
Pump exhausts air from vee
clamps.
Pump leaks fluid from manifold or
adapters.
CAUSE SOLUTION
Air valve is stuck or dirty. Clean / service air valve. See
Duckbill valves (8) are leaking. Replace. See page 7.
U-cup diaphragm shaft seals (71)
are worn.
Duckbill valves (8) are sticking or
leaking.
Diaphragm (36) is ruptured. Replace. See page 8.
Manifold bolts (60) or adapter bolts
(62) are loose.
Diaphragm (36) is ruptured. Replace. See page 8.
Manifold O-rings (6) are damaged. Replace. See page 7.
Fluid-side diaphragm plates (34) are
loose.
Fluid-side diaphragm plates (34) are
loose.
U-cup diaphragm shaft seals (71)
are worn.
Vee clamps (48) are loose. Torque vee clamp nuts (49) to 80 to
Manifold O-rings (6) are worn or
damaged.
Manifold bolts (60) or adapter bolts
(62) are loose.
See the Troubleshooting section of instruction
manual 308718 before you proceed with the table
below. Check all possible problems and causes before
you disassemble the pump.
page 6.
Use filtered air.
Replace. See page 8.
Clean or replace. See page 7.
Torque to 80 to 90 in-lb
(9 to 10 N-m).
Torque diaphragm shaft screws (35)
to 80 to 90 in-lb (9 to 10 N-m) at
100 rpm maximum. See page 8.
Torque diaphragm shaft screws (35)
to 80 to 90 in-lb (9 to 10 N-m) at
100 rpm maximum. See page 8.
Replace. See page 8.
90 in-lb (9 to 10 N-m).
Replace. See page 7.
Torque to 80 to 90 in-lb
(9 to 10 N-m).
5309009
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