Instructions – Parts List
AIR DRIVEN
Twistorkt Helix Mixer
308175P
100 psi (0.7 MPa, 7 bar) Maximum Working Pressure
Model 224854, Series D
Carbon Steel Agitator
Model 235534, Series D
Stainless Steel Agitator
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Table of Contents
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Patented in the United States and Europe
0908C
II 1/2 G T3
0359
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
ITS03ATEX11226
Copyright 1991, Graco Inc. is registered to I.S. EN ISO 9001
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WARNING
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 all equipment. Refer to Grounding on page 5.
D If there is any static sparking or you feel an electric shock while using this equipment, shut off the
agitator immediately. Do not use the equipment until you identify and correct the problem.
D 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.
D Do not use kerosene or other flammable solvents or combustible gases to flush the unit.
D Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid
being dispensed.
D Keep the dispensing area free of debris, including solvent, rags, and gasoline.
D Do not smoke in the dispensing area.
D Keep a fire extinguisher in the work area.
MOVING PARTS HAZARD
Moving parts, such as the rotating blades of the agitator, can pinch or amputate your fingers or other
body parts and can cause splashing in the eyes or on the skin.
D Keep clear of all moving parts when starting or operating the agitator.
D Always shut off the agitator and disconnect the air line before you remove the agitator from the
drum or check or repair any part of the agitator.
HAZARDOUS VAPORS
Hazardous fluids or toxic fumes can cause serious injury or death if splashed in the eyes or on the
skin, swallowed, or inhaled. When flushing the air motor, keep your face away from the exhaust port.
308175
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Installation
Installing the Agitator
WARNING
FIRE AND EXPLOSION HAZARD
1. Install the agitator on the container cover by
screwing the helix through the drum bung hole and
screwing the agitator housing into the bung hole.
Refer to the Dimension Drawing on page 11.
Always maintain a minimum of 1 in.
clearance between rotating agitator parts
and container to prevent sparks from contact.
CAUTION
Keep the agitator tightly mounted to the drum bung
to prevent damage to the threads from vibration.
Typical Installation
When using a modified drum check that there is no
interference between the base of the drum and the
shaft of the agitator.
air line lubricator
agitator motor
2. Position the air motor so the air line can easily be
attached to the needle valve’s 1/8 npt inlet, without
obstructing any other system components. See
Fig. 1.
air line filter
mix tank
3. Attach an air line quick disconnect valve or ball
valve for main air shutoff. Order Part No. 208536,
Coupler and 169969 Fitting, Quick Disconnect Air
Line Fitting.
air regulator
(reference only)
and gauge
NOTE: Reference numbers and letters in text refer to
the Figures and Parts Drawings.
4. Attach the air line between the needle valve’s
1/8 npt inlet and the 1/8 npt air supply manifold
outlet.
Air Requirements
Muffler
For continuous use, the 1/2 HP agitator air motor
typically requires 2 scfm (0.06 m#/min.) of air at 400
rpm and with 100 psi (7 bar) inlet pressure.
Air Line Accessories
Needle Valve
Install an air line filter to remove harmful dirt and
moisture from the air supply. Order Part No. 106148
for 3/8 npt or 106146 for 1/2 npt.
1/8 npt
Air Inlet
CAUTION
Not lubricating the air motor will cause air motor failure.
Downstream from the filter, install an air line lubricator
for automatic air motor lubrication. Set the lubricator
feed rate at 1 drop of oil per minute for high speed or
continuous duty usage. Do not overfeed oil or exhaust
air may become contaminated. To manually lubricate
the air motor, see Lubricating the Air Motor on page
7. To order a 3/8” npt air line lubricator, order Part No.
214847.
0908C
Fig. 1
4
308175
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Installation
Grounding
Proper grounding is an essential part of maintaining a
safe system.
C
B
A
To reduce the risk of static sparking, all electrically
conductive objects or devices in the spray area must
be properly grounded. Check your local electrical code
for detailed grounding instructions for your area and
type of equipment.
01089
Fig. 2
To ground the agitator:
Remove the grounding screw (A) and lockwasher (B).
See Fig. 2. Secure the ground wire terminal (C) to the
agitator with the screw and lockwasher. Connect the
other end of the ground wire to a true earth ground.
Order Part No. 222011, Ground Wire and Clamp.
308175
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Operation
WARNING
MOVING PARTS HAZARD
To reduce the risk of serious injury, in-
cluding cuts, amputation of fingers, and
splashing in the eyes or on the skin:
CAUTION
Do not operate the agitator at a high speed for a long
period of time. Excessive agitator speed can cause
foaming of fluid (making the fluid unusable), vibra-
tion, and increased wear on parts. Always agitate the
fluid only enough to maintain even mixing.
D Always shut off the mixer and disconnect the air
line before checking or repairing the mixer.
4. Operate the agitator continuously while supplying
paints or other fluids to the system.
Operating the Agitator
1. Fill the fluid supply container.
2. Start the agitator.
5. To stop the agitator, close the air valve in the air sup-
ply line if you have one, or close the agitator needle
valve.
3. Use the agitator needle valve to regulate the agitator
speed. The needle valve has numbered graduations
to refer to when setting the agitator speed. Set the
agitator at speeds that minimize vibration.
NOTE: The agitator rotation may be reversed by
switching the muffler and needle valve. Refer to Fig. 1.
NOTE: If an air shut-off valve is installed in the supply
line and used to stop the agitator, the same agitator
speed will be set each time the agitator is used. Part
numbers for air shut-off valves are listed below:
Checking Fluid Viscosity
If the agitator is in a closed drum, the agitator must be
removed to check the fluid viscosity or the fluid must be
siphoned from the 3/4 npt drum port.
208390 1/4 npt(m) x 1/4 npt(m)
208391 3/8 npt(m) x 3/8 npt(f)
208392 3/8 npt(f) x 1/4 npt(m)
208393 3/8 npt(m) x 3/8 npt(m)
6
308175
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Service
Servicing
WARNING
MOVING PARTS HAZARD
To reduce the risk of serious injury, in-
cluding cuts, amputation of fingers, and
splashing in the eyes or on the skin:
D If the unit requires more than installation of a ser-
vice kit, it is usually quickest and easiest to send
the unit to the Graco distributor for repair or re-
placement.
D
If the vanes need replacing or foreign material is
present in the motor chamber, an experienced
mechanic may remove the end plate opposite the
drive shaft end. Do not pry with a screwdriver. It will
dent the surface of the plate and body, causing
leaks. Use a puller tool, which will remove the end
plate while maintaining the position of the shaft.
D Always shut off the mixer and disconnect the air
line before checking or repairing the mixer.
D Wear eye protection.
WARNING
FIRE AND EXPLOSION HAZARD
D New vanes should have the edges with cut corners
(or the notched edges, if the vanes are reversible)
pointing toward the bottom of the vane slot.
To prevent an explosive hazard, where
injury and/or property damage can re-
sult:
NOTE: An Air Motor Repair Kit is available. Order part
number 224954.
D Do not operate this air motor with combustible
Aligning the Outlet Housing after
Repairing or Replacing the Outlet Housing
or Air Motor
gases.
D Do not use kerosene or other flammable
solvents to flush unit.
CAUTION
Improper installation of the outlet housing could
cause the agitator shaft to bind against the outlet
housing bearing and damage it.
D Keep face away from exhaust port. Foreign
material exiting the air motor can be hazardous.
Flushing
If the motor is sluggish or inefficient, flush it with non-
flammable solvent in a well ventilated area.
1. Place the agitator in a vertical position and loosen the
three outlet housing screws (17). See Parts Drawing.
The recommended solvent for air motors and lubri-
cated pumps is GastR Flushing Solvent (Part No.
AH255 or AH255A) or InhibisolR Safety Solvent.
2. Apply 25 psi (1.7 bar) minimum air pressure to the air
motor. Adjust the needle valve so the agitator is bare-
ly turning.
1. Disconnect the air line and muffler.
3. While the agitator shaft is turning, torque the three
outlet housing screws to 80 to 100 in-lbs (9 to
11.3 NSm).
2. Add several teaspoons of solvent or spray the
solvent directly into the motor.
4. If the agitator shaft still binds, repeat steps 1 to 3
above.
3. Rotate the shaft by hand in both directions for a
few minutes.
Lubricating the Air Motor
4. Reconnect the air line and slowly apply pressure
until there is no trace of solvent in the exhaust air.
CAUTION
Not lubricating the air motor will cause air motor failure.
5. Re-lubricate the motor with a squirt of light-weight
oil in the chamber.
If an air line lubricator is not installed, the air motor
must be manually lubricated every 8 hours. Lubricate
the agitator air motor by placing 10–20 drops of SAE
#10 light oil in the motor’s air inlet. Run the agitator for
about 30 seconds.
R
Gast is a registered trademark of Gast Manufactur-
ing.
R
Inhibisol is a registered trademark of Penetone Corp.
308175
7
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Parts
Model 224854 Twistorkt Helix Mixer
Carbon Steel, Includes items 1 to 22
0911B
11f
11a
11b
11c
11e
11d
Ref. No. 11
Needle Valve
2
1
Includes items 11a–11f
1a
22
20
4
4
16
11
17
1
1
3
3
10
6
5
9n
7
n8
Torque to 80–100 in-lbs (9–11.3 NSm).
Apply medium grade sealant to external threads.
1
2
Torque to 34–40 in-lbs (4–4.5 NSm). Be sure air motor
shaft bottoms out in mounting hole before tightening.
3
4
Align as instructed on page 7.
0907B
8
308175
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Parts
Model 224854 Twistorkt Helix Mixer
Carbon Steel, Includes items 1 to 22
Ref.
No.
11b 166532
11c 164698
11d 157628
11e 165722
11f 166531
.NUT, packing
1
1
1
1
1
1
Part No. Description
Qty.
.KNOB, adjusting
.O–RING, packing
.BODY, valve
1*
1a
3
4
5
111310
113779
101682
224876
224852
224393
187054
MOTOR, air; Includes item 1a
S MUFFLER, exhaust
SCREW, cap, sch; 1/4–20 x 0.625 3
HOUSING, outlet, carbon steel
SHAFT, agitator
HELIX, agitator
1
1
.WASHER
16
17
187577
102023
PLATE, motor mounting
SCREW, cap, hex hd;
1/4–20 x 0.75
SCREW, grounding;
hex, No. 8–32
1
1
1
1
1
1
3
6
7
20
111593
157021
PLUG, fluid tube
1
1
8n 101946
9n 111312
10
PIN, cotter
22
WASHER, lock
O-RING, Fluoroelastomer
SCREW, set, socket;
1/4–20 UNC 3A
112364
*
Repair Kit 224954 used to rebuild air motor 111310,
may be purchased separately.
2
11
206264
VALVE, needle
Includes items 11a to 11f
.VALVE, needle
1
1
n Keep these spare parts on hand to reduce down
11a 166529
time.
308175
9
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Parts
0911B
Model 235534 Twistorkt Helix Mixer
11f
Stainless Steel, Includes items 1 to 22
11a
11b
11c
11e
11d
Ref. No. 11
Needle Valve
Includes items 11a–11f
2
1
1a
22
20
4
4
16
11
17
6
1
1
3
3
10
5
9n
7
n8
Torque to 80–100 in-lbs (9–11.3 NSm).
Apply medium grade sealant to external threads.
1
2
Torque to 34–40 in-lbs (4–4.5 NSm). Be sure air motor
shaft bottoms out in mounting hole before tightening.
3
4
Align as instructed on page 7.
0907B
10 308175
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Parts
Dimensions
Model 235534 Twistorkt Helix Mixer
Stainless Steel, Includes items 1 to 22
6.96 in.
(177 mm)
Ref.
No.
1/8 npt
Part No. Description
Qty.
To bottom
of threads
1*
1a
3
4
5
111310
113779
101682
235535
235530
224393
187054
MOTOR, air; Includes item 1a
S MUFFLER, exhaust
SCREW, cap, sch; 1/4–20 x 0.625 3
HOUSING, outlet, stainless steel
SHAFT, agitator, stainless steel
HELIX, agitator
PLUG, fluid tube
PIN, cotter
O-RING, Fluoroelastomer
SCREW, set, socket;
1/4–20 UNC 3A
1
1
2 – 11-1/2 npt
1
1
1
1
1
1
6
7
8n 101946
9n 111312
10
112364
2
11
206264
VALVE, needle
Includes items 11a to 11f
.VALVE, needle
.NUT, packing
.KNOB, adjusting
.O–RING, packing
.BODY, valve
32.67 in.
(830 mm)
1
1
1
1
1
1
1
1
11a 166529
11b 166532
11c 164698
11d 157628
11e 165722
11f 166531
.WASHER
16
17
187577
102023
PLATE, motor mounting
SCREW, cap, hex hd;
1/4–20 x 0.75
3
20
22
111593
157021
SCREW, grounding;
hex, No. 8–32
WASHER, lock
1
1
*
Repair Kit 224954 used to rebuild air motor 111310,
may be purchased separately.
n Keep these spare parts on hand to reduce down
0908C
time.
308175 11
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Technical Data
Maximum Working Pressure . . . . . . . . . 100 psi (7 bar)
Maximum Recommended Agitator Speed . . . . 800 rpm
Air Consumption
External Parts that may come in contact with fluids:
Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . Carbon Steel
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum
At 800 rpm with 100 psi (7 bar) air inlet pressure:
5 scfm (0.14 m#/min.)
At 400 rpm with 100 psi (7 bar) air inlet pressure:
2 scfm (0.06 m#/min.)
*Noise Level at 100 psi normal load
at 800 rpm: Pressure . . . . . . . . . . . . . . . . . 71.3 dB(A)
Power . . . . . . . . . . . . . . . . . . . 84.6 dB(A)
*Noise Level at 100 psi at no load
at max rpm: Pressure . . . . . . . . . . . . . . . . 84.1 dB(A)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.6 lb (8 kg)
Wetted Parts
Power . . . . . . . . . . . . . . . . . . 97.4 dB(A)
Model 224854 . . . Carbon Steel, Fluoroelastomer,
Acetal
*Tested to CAGI-PNEUROP–1969
Model 235534 . . . . . . 304 & 316 Stainless Steel,
Fluoroelastomer, Acetal
12 308175
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Notes
308175 13
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Graco Standard 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 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 warranty 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 sub-
stitution 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 WARRANTY 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 obligation 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, or any
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 reconnais-
sent 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.
Graco Information
TO PLACE AN ORDER, contact your Graco distributor, or call this number to identify the distributor closest to you:
1–800–328–0211 Toll Free
612–623–6921
612–378–3505 Fax
All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
This manual contains English. MM 308175
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
12/1991, Revised 10/2007
14 308175
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