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.
2309009
Page 3
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
Page 4
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.
4309009
Fig. 1
72
3
60
9306A
Page 5
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.
CAUSESOLUTION
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
Page 6
Service — Air Valve
A
Air Valve Repair Kit 241657 is available. Parts included in the kit are marked with a dagger ({) in Fig. 2 and in the
Parts Drawing and Parts List on pages 10 and 11. A tube of general purpose grease 111920 is supplied in the kit.
Service the air valve as follows. See Fig. 2.
Disassembly
1.
See Pressure ReliefProcedure on page 4.
2. Remove the hopper from the cart to gain access to
the pump air valve.
3. Remove the quick-disconnect hose from the air
inlet fitting (81), and remove the valve chamber
cover (15) and O-ring (14).
4. Remove the carriages (77), carriage plungers (76),
carriage pins (75), and valve plate (28) from the
center housing (3).
5. Clean all the parts, and inspect them for wear or
damage.
NOTE: If you are installing the new Air Valve
Repair Kit 241657, use all the parts in the kit.
Reassembly
1. Grease the lapped surface of the valve plate (28),
and install the valve plate with the lapped surface
facing up.
2. Grease the bores of the center housing (3), install
the U-cups (71) onto the carriage plungers (76),
and slide the carriage plungers into the carriage
plunger bores.
Relieve the pressure.
{ Included in Air Valve Repair Kit 241657
1
Torque to 80 to 100 in-lb (9.0 to 13.6 N-m).
2
Apply grease.
3
Apply grease to lapped face.
4
Apply grease to bores of center housing (3) before installing.
Seal lips face clip end (the smaller end) of carriage
5
plunger (76).
Install with the clip ends (the smaller ends) facing toward
6
center of center housing (3).
{77
2
{
75
{715
3
{28
15
14{
76{
81
1
2
4
6
DWhen you install the U-cups (71) on the
carriage plungers (76), make sure the lips of
the U-cups face toward the clip end (the
smaller end) of the carriage plunger.
DWhen you slide the carriage plungers (76) into
the bores, slide them in with the clip ends (the
smaller ends) facing toward the center of the
center housing (3).
3. Grease the carriage pins (75), and slide the
carriage pins into the carriage pin bores.
4. Install the carriages (77). Make sure the carriages
engage the clip ends of the carriage plungers (76)
and carriage pins (75).
5. Grease the O-ring (14), and seat it in the groove
around the cover opening of the center
housing (3).
6. Screw the cover (15) into the center housing, and
torque the cover to 80 to 100 in-lb (9.0 to 13.6 N-m).
7. Install the air hose on the air inlet fitting (81), and
install the hopper on the cart.
Fig. 2
3
9307
6309009
Page 7
Service — Duckbill Valves
Duckbill Valve Repair Kit 239754 is available. Parts included in the kit are marked with a double dagger (}) in Fig. 3
and in the Parts Drawing and Parts List on pages 10 and 11. Service duckbill valves as follows. See Fig. 3.
Disassembly
1.
Relieve the pressure. See Pressure
Relief Procedure on page 4.
2. Remove the pump from the cart.
3. Stand the pump upright on the floor or workbench.
4. Remove the bolts (62), washers (63), and nuts (61). Remove
the two adapters (47).
5. Remove the exposed duckbill valves (8), spacers (7), and
O-rings (6).
6. Turn the pump so it is standing upside down on the floor or
workbench.
7. Remove the manifold bolts (60) and nuts (61), and remove the
feet (45) and manifold (2).
8. Remove the exposed O-rings (6), spacers (7), and duckbill
valves (8).
Reassembly
1. With the pump standing upside down on the floor or
workbench, install the lower duckbill valve assembly by
inserting the new duckbill valves (8), spacers (7), and
O-rings (6).
NOTE: Make sure the duckbill valves are oriented as
shown in Fig. 3.
2. Apply lubricant to the threads of the bolts (60), and
reassemble the manifold (2), feet (45), bolts (60), and
nuts (61). Torque the bolts to 80 to 90 in-lb (9 to 10 N-m).
1
61
61
62
63
47
}8
}7
}6
9}
}8
}7
3. Turn the pump so it is standing upright on the floor or
workbench.
4. Install the upper duckbill valve assembly by inserting the new
O-rings (6), spacers (7), and duckbill valves (8).
NOTE: Make sure the duckbill valves are oriented as
shown in Fig. 3.
5. Apply lubricant to the threads of the bolts (62), and install the
two adapters (47), bolts (62), washers (63), and nuts (61).
Torque the bolts to 80 to 90 in-lb (9 to 10 N-m).
6. Install the pump on the cart.
Fig. 3
}6
2
45
1
60
}Included in Duckbill V alve Repair Kit 239754
Apply lubricant, and torque to 80 to 90 in-lb
1
(9 to 10 N-m).
9308A
7309009
Page 8
Service — Diaphragms
Fluid Section Repair Kit D05007 is available. Parts included in the kit are marked with a star (L) in Fig. 4 and in the
Parts Drawing and Parts List on pages 10 and 11. General-purpose grease 111920 and Adhesive 113500 are
supplied in the kit. Service the diaphragms as follows. See Fig. 4.
Disassembly
1.
2. Remove the pump from the cart.
3. Remove the vee clamps (48).
4. Remove the manifold (2) and fluid covers (1).
NOTE: Do not lose the manifold O-rings (6), and
make sure all the check valve parts stay in place.
See Fig. 3 on page 7.
5. Remove one of the fluid-side diaphragm plates
(34) (whichever one comes loose first when you
use a wrench on the hex of each), and pull the
diaphragm shaft out of the center housing (3).
6. Use a wrench on the flats of the diaphragm shaft
(74) to remove the other fluid-side diaphragm plate
(34) from the diaphragm shaft.
7. Remove the screws (65) and air covers (66).
Remove all old gasket (70) material from the ends
of the center housing (3) and the surfaces of the
air covers.
8. Remove the diaphragm shaft U-cups (71) and pilot
pin O-rings (12).
9. Inspect all parts for wear or damage, and replace
as necessary.
Reassembly
1. Insert a diaphragm shaft U-cup (71) and a pilot pin
O-ring (12) into their bores in one end of the center
housing (3).
Relieve the pressure.
See Pressure Relief
Procedure on page 4.
5. Apply medium-strength (blue) Loctite (supplied
with Kit D05007) or equivalent to the threads of the
diaphragm shaft screws (35). Install on one end of
the diaphragm shaft (74) the following parts (see
proper order in Fig. 4): air-side diaphragm plate
(37), diaphragm (36), fluid-side diaphragm plate
(34), O-ring (33), and screw (35).
NOTE: The words AIR SIDE on the diaphragm
(36) and the flat side of the air-side diaphragm
plate (37) must face toward the diaphragm
shaft (74).
6. Put grease (supplied with Kit D05007) on the
diaphragm shaft (74), and carefully (do not
damage the diaphragm shaft U-cups) run the
diaphragm shaft through the center housing (3)
bore.
7. Repeat step 5 for the other end of the diaphragm
shaft (74). Torque the diaphragm shaft screws (35)
to 80 to 90 in-lb (9 to 10 N-m) at 100 rpm
maximum.
8. Install the muffler (72).
9. Apply a thin, even film of grease to the insides of
the vee clamps (48).
When you install the vee clamps in step 10, orient the
center housing (3) so the valve chamber cover (15) is
straight up.
10. Position the fluid covers (1), install the vee clamps
(48) around the fluid and air covers, and torque the
vee clamp nuts to 80 to 90 in-lb (9 to 10 N-m).
11. Make sure all the check valve parts are in place.
See Fig. 3 on page 7.
NOTE: Make sure the lips of the U-cup face out
of the center housing.
2. Line up the holes in the gasket (70) with the holes
in the end of the center housing (3), and use six
screws (65) to fasten an air cover (66) to the end
of the center housing. Torque the screws to 40 to
50 in-lb (4.5 to 5.6 N-m).
3. Position the exhaust cover (73) and O-ring (14) on
the center housing (3).
4. Repeat steps 1 and 2 for the other end of the
center housing and the remaining air cover.
8309009
12. Put grease (supplied with Kit D05007) on the
manifold bolts (60), install the manifold (2), and
torque the manifold bolts to 80 to 90 in-lb
(9 to 10 N-m).
13. Install the pump on the cart, and reconnect the air
line to the air inlet fitting (81).
Page 9
Service — Diaphragms
3
L12
L70
1
81
66
2
65
{14
48
73
74
3
71L
1
5
37
34
33
6
35
1
48
36L
4
LIncluded in Fluid Section Repair Kit D05007
Install with lips facing out of center housing (3).
1
2
Torque to 40 to 50 in-lb (4.5 to 5.6 N-m).
72
2
Apply grease.
3
45
60
37
Fig. 4
The words AIR SIDE on diaphragm (36) must face
4
toward diaphragm shaft (74).
Flat side of the air-side diaphragm plate (37) must face
5
toward diaphragm shaft (74).
6
Apply medium-strength (blue) LoctiteR or equivalent to
threads, and torque to 80 to 90 in-lb (9 to 10 N-m) at 100
rpm maximum.
LoctiteR is a registered trademark of the Loctite Corporation.
13309009
Page 14
Graco Warranty
Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the
date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any special, extended, or limited
warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment
determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in
accordance with Graco’s written recommendations.
This warrant y does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by
faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or
substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of
Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture,
installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for
verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The
equipment will be returned to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect
in material or workmanship, repairs will be made at a reasonable charge, which charges may include the costs of parts, labor, and
transportation.
THIS W ARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole o b l i g a t i o n and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other
remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property , o r a ny
other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the
date of sale.
Graco makes no warranty , and disclaims all implied warranties of merchantability and fitness for a particular purpose in connection
with accessories, equipment, materials or components sold but not manufactured by Graco. These items sold, but not manufactured
by Graco (such as electric motors, switches, hose, etc.), are subject to the warranty, if any, of their manufacturer. Graco will provide
purchaser with reasonable assistance in making any claim for breach of these warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment
hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract,
breach of warranty, the negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings
entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties
reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures
judiciaires exécutés, donnés ou intentés à la suite de ou en rapport, directement ou indirectement, avec les procedures concernées.
ADDITIONAL WARRANTY COVERAGE
Graco does provide extended warranty and wear warranty for products described in the “Graco Contractor Equipment Warranty
Program”.
Graco Phone Number
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:
1–800–690–2894 Toll Free
All written and visual data contained in this document reflect the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Foreign Offices: Belgium, Korea, China, Japan
GRACO INC.P.O. BOX 1441MINNEAPOLIS, MN55440–1441
14309009
Sales Offices: Minneapolis
http://www.graco.com
07/1999, Revised 05/2006
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