Graco 3A1162A User Manual
Installation - Parts
Solenoid
3A1162A
Changeover Kits
Increases shot accuracy and eliminates changeovers on shots that are less than 20% of
the pump volume when added to SmartWare™ Shot Dispense Kits.
For professional use only.
Not for use in explosive atmospheres.
Part 262453
Changeover kit for NXT®2200 and larger air motors.
ENG
Part 262464
Changeover kit for NXT1800 and smaller air motors.
Important Safety Instructions
Read all warnings and instructions in this
manual and the SmartWare Shot Dispense Kit
manual. Save all instructions.
Install Changeover Kit 262453
Install Changeover Kit 262453
1. Assemble the air fittings onto the solenoid valve as
shown in the following figure.
3
4
FIG. 1: Assemble Fittings
2. Stop the pump at the middle of its stroke.
3. Relieve pressure. See the SmartWare Shot Dispense Kit Instructions-Parts manual for pressure
relief instructions.
7
5
6
7
4
4. Disconnect the air line to the air motor.
5. Remove the air motor top cover using a flat head
screwdriver.
ti8218b
FIG. 2: Remove Air Motor Cover
6. Remove the screw on the outer valve cover to
remove the cover.
7. Remove the ten screws from the valve cover to
remove the cover, spring-loaded detent, and gasket.
Trapped air can cause the pump to cycle
unexpectedly, which could result in serious injury
from splashing or moving parts
8. Remove both end cap retainer pins from their holes.
Retainer Pin
Valve Cover
Detent
Outer Valve Cover
Screw
Gasket
Screws
FIG. 3: Disassemble Front of Air Motor
2 3A1162A
Install Changeover Kit 262453
9. Invert the retainer pins and slide the heads into the
slots on the existing piston stop valves. Use the
retainer pins to pull the piston valve stops out.
Retainer Pin
Piston
Valve
Stop
ti7758a
FIG. 4: Remove Existing Piston Valve Stops
10. Install a new piston valve stop (1), o-ring (14), and
elbow fitting (20) in the top of the valve body. Apply
a liberal amount of lubricant (17) to the o-ring before
installation.
11. Install a new piston valve stop (1), o-ring (14), and
straight fitting (15) in the bottom of the valve body.
Apply a liberal amount of lubricant (17) to the o-ring
before installation.
14
1
15
FIG. 6: Install Bottom Piston Valve Stop
20
1
14
FIG. 5: Install Top Piston Valve Stop
3A1162A 3
Install Changeover Kit 262453
12. Install the solenoid bracket (2) to the top of the valve
body using the two mounting screws (10) and washers (11).
13. Install the solenoid valve assembly (3) to the solenoid bracket using the two solenoid valve screws
(12).
12
3
10
2
14. Connect cables and air lines as shown in F
IG. 8. Cut
air line tubes to length.
NOTE: To avoid kinks in air lines when connecting them
from the solenoid valve to the piston valve stop, use
large radius bends in the air lines and support tubing
with the supplied cable ties.
NOTE: For supply systems, ensure there is enough
cable and air line tubing to allow for full ram extension.
15. Reassemble air motor. Follow steps 6 through 3 in
reverse order.
16. Tee into your existing air supply, upstream from any
regulators, to provide air to the solenoid air supply.
Ensure there is a minimum of 70 psi (0.49 MPa, 4.9
bar).
11
FIG. 7: Install Solenoid Valve Assembly
4 3A1162A
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