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OPERATION & MAINTENANCE

WARNING

To reduce the risk of serious bodily injury, including
cuts, amputation of fingers, and splashing in the
eyes or on the skin, always shut off the agitator and
disconnect the air line before checking or repairing
the agitator.

Operating the Agitator

NOTE: If there is a thick sediment in the bottom of the

fluid container that could clog the agitator’s fluid
tube, thoroughly mix the fluid with the plug (7) still
in place in the agitator before removing it to use
the suction feature. Refer to the PARTS DRAW-
ING
.

1.

Fill the fluid supply container.

2.

Start the agitator.

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.

NOTE:  If an air shut-off valve is installed in the supply

line and used to stop the agitator, the same agita-
tor speed will be set each time the agitator is
used without repeating the above procedure.
See ACCESSORIES.

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),
vibration, and increased wear on parts. Always ag-
itate the fluid only enough to maintain even mixing.

4.

Operate the agitator continuously while supplying
paints or other fluids to the system.

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.

NOTE: The agitator rotation may be reversed by switch-

ing the muffler (1a) and needle valve (11). Refer
to Fig 2.

Checking Fluid Viscosity

Install a fitting and siphon tube (not provided) into the agi-
tator’s 3/4 npt(f) fluid outlet (A). Refer to Fig 2. With the
siphon tube routed to a separate container, pump the
fluid out through the agitator outlet port to check viscosity.

Maintaining the Agitator Air Motor

If an air line lubricator is not installed, the air motor must
be manually lubricated every 8 hours. Lubricate the agi-
tator air motor by placing 2 or 3 drops of SAE No. 10 light
oil in the motor’s air inlet. Run the agitator for about 30
seconds.

The air check valve (12) allows make-up air to enter the
closed drum as fluid is drawn out through the agitator out-
let port. Refer to Fig 2. The air check valve should be in-
spected and cleaned periodically.

If the air motor operation is erratic or sluggish, flush the
motor as follows:

1.

Remove the needle valve and fill the air inlet cavity
with kerosene. Screw the needle valve back in. See
Fig 2.

2.

Soak for about 10 minutes, then run the agitator
slowly until all the kerosene is blown out. Repeat the
process if the motor still doesn’t run smoothly.

WARNING

To reduce risk of serious bodily injury, including
splashing kerosene in the eyes or on skin, keep face
and body away from exhaust while flushing.

NOTE: An Air Motor Repair Kit is available. Order part

number 224–954.

Aligning the Outlet Housing after Repairing
or Replacing the Outlet Housing or Air Motor

CAUTION

Improper installation of the outlet housing could
cause the agitator shaft to bind against the outlet
housing bearing and damage it.

1.

Place the agitator in a vertical position and loosen the
three outlet housing screws (17). See the PARTS
DRAWING
.

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.

3.

While the agitator shaft is turning, torque the three
outlet housing screws to 80 to 100 in-lbs (9 to
11.3 N

m).

4.

If the agitator shaft still binds, repeat steps 1 to 3
above.

Summary of Contents for Twistork A Series

Page 1: ...653 Series A Stainless Steel Agitator with suction feature For use in bung mounted 55 gallon drum GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1992 GRACO INC TABLE OF CONTENTS Warnings 2 Installation 3 Operation Maintenance 4 Accessories 5 Parts Drawing 6 Parts List 7 Dimensional Drawing 7 Technical Data Back Cover Graco Phone Numbers Back Cover Warranty Back Cover 0910A Patented in ...

Page 2: ...t manufacturer s literature before using the fluid or solvent with this agitator FIRE OR EXPLOSION HAZARD All electrically conductive objects or devices in the spray area MUST be properly grounded When operating the system any ungrounded objects in the spray area can become electrically charged Arcing may occur if these objects then come in contact or close to ground Arcing of sufficient energy le...

Page 3: ...the bottom of the fluid container that could clog the agitator s fluid tube thoroughly mix the fluid with the plug 7 still in place in the agitator before removing it to use the suction feature 2 Install the agitator on the container cover by screw ing the helix through the drum bung hole and screw ing the agitator housing into the bung hole Refer to the DIMENSION DRAWING 3 Position the air motor ...

Page 4: ...luid outlet A Refer to Fig 2 With the siphon tube routed to a separate container pump the fluid out through the agitator outlet port to check viscosity Maintaining the Agitator Air Motor If an air line lubricator is not installed the air motor must be manually lubricated every 8 hours Lubricate the agi tator air motor by placing 2 or 3 drops of SAE No 10 light oil in the motor s air inlet Run the ...

Page 5: ...AIR SHUT OFF VALVE 500 psi 35 bar MAXIMUM WORKING PRESSURE Nickel plated steel with PTFE packings 208 390 1 4 npt m x 1 4 npt m 208 391 3 8 npt m x 3 8 npt f 208 392 3 8 npt f x 1 4 npt m 208 393 3 8 npt m x 3 8 npt m GROUNDING CLAMP AND WIRE 222 011 12 ga 25 ft 7 6 m wire QUICK DISCONNECT FLUID FITTING 235 221 2500 psi 172 bar MAXIMUM WORKING PRESSURE Pin type push locking 316 stainless steel 3 4...

Page 6: ...a 11e 11a 11b 11c 11e 11d 10 Lubricate Lips face down Lubricate Lips face up 0911 0909A Torque to 35 40 in lbs 4 4 5 N m Be sure air motor shaft bottoms out in mounting hole before tightening Torque to 80 100 in lbs 9 11 3 N m 22 20 Lubricate Lips face up Lubricate Lips face down NOTE Install the seals 23 on the agitator shaft 5 before installing the shaft into the housing 4 23 ...

Page 7: ...9 449 S NEEDLE valve 1 11e 159 589 S O RING buna N 2 12 187 053 SEAT check valve 1 13 187 050 HOUSING check valve 1 14 105 691 BEARING ball 1 15 110 208 PLUG hdless pipe 1 8 27 nptf 1 16 187 577 PLATE motor mounting 1 17 102 023 SCREW cap hex hd 1 4 20 x 0 75 3 20 111 593 SCREW grounding hex No 8 32 1 22 157 021 WASHER lock 1 23 235 994 SEAL KIT graphite filled PTFE 1 Recommended tool box spare pa...

Page 8: ...titute purchaser s sole and exclusive remedy and are in lieu of any other warranties express or implied including warranty of merchantability or warranty of fitness for a particular purpose and of any non contractual liabilities including product liabilities based on negligence or strict liability Every form of liability for direct special or consequen tial damages or loss is expressly excluded an...

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