Graco 312374J User Manual
Instructions-Parts
Air Controls
Integrated and 2-Button Interlock Air Controls for use with Supply Systems.
For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for Model information.
Integrated Air Controls
L20c Air Controls
312374J
EN
r_257302_312376_2e
ti10438a
Contents
Contents
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Integrated Air Controls . . . . . . . . . . . . . . . . . . . . . . 3
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 3
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Replace Director Valve . . . . . . . . . . . . . . . . . . . . 4
Replace Air Motor Regulator . . . . . . . . . . . . . . . . 4
Replace Ram Air Regulator . . . . . . . . . . . . . . . . 5
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2-Button Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Attach Roller Switch and Actuator . . . . . . . . . . . 6
Attach 2-Button Interlock Assembly . . . . . . . . . . 7
Models
L20c Air Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 9
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Replace Air Motor Regulator . . . . . . . . . . . . . . . . 9
Replace Air Motor Shutoff Valve and Ram Shutoff
Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remove Blowoff Push Button . . . . . . . . . . . . . . . 9
Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
L20c Air Controls, 257613 . . . . . . . . . . . . . . . . . 10
Integrated Air Controls . . . . . . . . . . . . . . . . . . . . 11
Integrated Air Controls . . . . . . . . . . . . . . . . . . . . 12
2-Button Interlock Kit . . . . . . . . . . . . . . . . . . . . . 13
Pneumatic Schematic . . . . . . . . . . . . . . . . . . . . . . 14
Integrated Air Control Module . . . . . . . . . . . . . . 14
Integrated Air Control Module with Optional
2-Button Interlock . . . . . . . . . . . . . . . . . . . . 15
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 16
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 16
Air Controls
Model
No. Description
255650
24C824
257612
257613
Integrated Air Controls for D60, D200, and
D200s
Integrated Air Controls for D200 and D200s
(Ram only, no pump control)
Air Controls, For S20 3 in., 5 Gallon (20 Liter)
Supply Systems
Air Controls, For L20c 3 in., 5 Gallon (20
Liter) Supply Systems
2-Button Interlock
Model
No. Description
257615
255719
255720
Two-Button Interlock, For D60 3 in., 16 Gallon (60 Liter) Supply Systems
Two-Button Interlock, For D200 3 in., 55 Gallon (200 Liter) Supply Systems
Two-Button Interlock, For D200s 6.5 in., 55 Gallon (200 Liter) Supply Systems
Maximum
Regulated
Working
Pressure
psi (MPa, bar) Air Inlet Size
150 (0.69, 6.9) 3/4 npt(f) 255719
150 (0.69, 6.9) 3/4 npt(f) 255719
150 (0.69, 6.9) 1/2 npt(f) NA
100 (0.7, 7) 1/2 npsm(f) 255615
Compatible
2-Button Interlock
Model
255720
255720
2 312374J
Integrated Air Controls
Integrated Air Controls
255650 (shown)
To reduce the risk of serious injury whenever you are
instructed to relieve the pressure, follow the Pressure
Relief Procedure.
Pressure Relief Procedure
1. Close the air motor slider valve (E) and the main air
slider valve (F).
2. Set the ram director valve to DOWN. The ram will
slowly drop.
3. Jog the director valve up and down to bleed air from
ram cylinders.
Disassembly
1. For Supply Systems with Shrouds: Remove
shrouds. Loosen six captive screws (A) and disassemble shrouds (B) from supply system.
C
D
r_289105_312375_2a
IG
. 2
F
255650 (shown)
E
1
F
E
B
B
255650 (shown)
A
r_289105_312375_a
F
IG
. 1
2. Disconnect all hoses and tubing from existing air
control.
3. Remove four screws (C) from the mounting bracket
(D) and remove the integrated air controls from the
supply system.
C
D
r_289105_312375_3a
IG
. 3
F
If you are not replacing the manifold (1), you may
prefer to remove the bracket from the ram and
leave it attached to the integrated air controls
because the screws are easier to reach. See F
1
F
IG
. 4.
312374J 3
Integrated Air Controls
r_289105_312375_4a
F
IG
. 4
Replace Director Valve
Numbers in parentheses refer to FIG. 5.
1. Relieve pressure.
2. Remove screws (4a) and take off director valve.
3. Remove spring (4c), valve plate (4d), and o-ring
(4b)
.
4g
4f
4e
4b
4d
4c
4
4a
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FIG. 5
Replace Air Motor Regulator
Numbers in parentheses refer to Parts, page 11. Air
motor regulator not included with 24C824 integrated air
controls.
1. Relieve pressure.
2. Disconnect air motor hosing and fittings.
3. Remove two screws (9) and take off the shutoff
valve (3) at top of module. If your supply system has
an air solenoid, it can remain attached to the shutoff
valve.
Note the orientation of the director valve plate when
you remove it. The opening should be on the opposite side (left) of the lever.
4. Remove and discard pin (4g) and four valve seats
(4e) with o-rings (4f).
5. Insert new valve seats (4e) with o-rings (4f) and new
pin.
6. Insert new director valve plate (4d, see Note above)
spring (4c), and o-ring (4b).
7. Attach new director valve with screws (4a). Tighten
screws until snug.
4. Remove two screws (9) and take off the air motor
regulator (6).
5. Attach new regulator to manifold. Orient so the
gauge lines up with the gauge on the ram air regulator and the direction of flow arrow points up. Tighten
screws until snug. Recommend using thread locker
Loctite 220 or equivalent.
6. Reattach shutoff valve (3) at top of regulator. Make
sure that o-ring (5) is in place on valve (3).
4 312374J
Replace Ram Air Regulator
Numbers in parentheses refer to Parts, page 10.
1. Relieve pressure.
2. Remove four screws (7a) and take off the ram air
regulator (7).
3. Replace o-rings (7b) on back side of regulator.
4. Attach new air regulator to manifold. Use index pin
for correct orientation. Tighten screws until snug.
Reassembly
1. Using four screws, attach the integrated air controls
to the mounting bracket. See F
2. Attach the ram up, ram down, and blowoff air lines
as shown in Figure F
255650 (shown)
IG
. 6.
IG
. 2.
Integrated Air Controls
Not included
with 24C824
}
Ram up
Blowoff
Auxiliary
air supply port
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F
IG
. 6
3. Attach all other hoses and replace shrouds.
Ram down
312374J 5
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