Graco 3A0526A G3 Vent Valve Kit Instructions

Instructions
G3 Vent Valve Kit
3A0526A
ENG
Instructions for installing vent valve. For professional use only.
Part No.: 12 Volt - 571061; 24 Volt - 571029
Maximum Working Pressure: 3500 psi (241 bar, 24 MPa)
Important Safety Instructions
Read all warnings and instructions in this
manual and the G3 Pump instruction manual
included with your unit. Save these instructions.
Kit Parts: 12 Volt - 571061, 24 Volt - 571029
Ref.
1
2
3
4
5
6
7
Description
Qty
VALVE, vent*
1
CABLE, 6 ft, vent valve, 2 pin
1
CONNECTOR, male, 3 pin, field wire
1
FITTING, grease
1
PLUG, dryseal, 1/4 NPTF
3
SCREW, cap, socket
2
GAUGE, pressure, fluid
1
2
4
3
1
5
6
NOTICE
All user supplied tubing must be rated for the same
pressure or equipment could be damaged.
7
Instructions
Instructions
Pressure Relief
3. Mount vent valve block (1) to a fixed surface near
the G3 pump using mounting holes (a) and two
socket screws (6).
1
SKIN INJECTION HAZARD
High-pressure fluid from dispense device, hose leaks, or
ruptured components will pierce skin. This may look like
just a cut, but it is a serious injury that can result in amputation. Get immediate surgical treatment.
Follow Pressure Relief Procedure in this manual, when
you stop dispensing and before cleaning, checking, or
servicing equipment.
Relieve pressure in system by using two wrenches
working in opposite directions on pump element and
pump element fitting to only loosen fitting.
NOTE: When loosening pump element fitting, do NOT
loosen pump element. Loosening pump element will
change the output volume.
a
FIG. 2: Mounting Dimension a = 3.25 inches (8.255
cm). Thread 1/4 - 20 UNC-2A
4. Connect the two cable wires to the field wired plug
by inserting wires into pin terminals 2 and 3 as
shown in Wiring Diagram provided in FIG. 3. Tighten
set screws.
Connector on Housing
Pin-out
(3)
1 Not Used
2 Relief+
3 Relief (2)
(1)
Example Wiring Diagram
FIG. 1
Installation
1
2
3
Reference numbers used in these instruction correspond to parts included in Kit and are provided on page
1. Parts identified with an alpha character are user provided or already installed components.
1. Disconnect power source.
FIG. 3
2. If unit has already been in service, relieve pressure.
2
3A0526A
Instructions
5. Connect field wired end (3) of cable (2), between the
vent valve block (a) and the G3.
7. Connect inlet tube (b) to pump element (c) and inlet
fitting (d) to manifold (stamped with an “I”) (FIG. 6).
Wrench tighten only.
NOTE: Verify correct port on G3 label is selected.
Locate symbol shown in FIG. 4 on G3 label to select
correct port.
3
d
c
Vent Valve
Symbol
b
2
FIG. 6
FIG. 4
6. Connect cable connector (2) to solenoid valve (1)
(FIG. 5).
8. Connect main tube (e) to any manifold outlet (f)
(stamped with an “O”) and injector inlet (g) (FIG. 7).
2
f
e
g
1
FIG. 7
FIG. 5
9. Use a wrench to loosen plug (h) from return location. Remove plug from port (FIG. 8).
h
FIG. 8
3A0526A
3
10. Apply thread sealant to threads (j) of a (user supplied) tube fitting (k).
NOTE: Although the example shown in FIG. 9 shows
a 90° elbow fitting, this is only shown for reference.
The user may use what ever fitting best suits their
installation.
11. Install tube fitting (k) in open port.
14. The kit includes the following additional parts:
•
•
•
Zerk Grease Fitting (optional) (4)
Plugs (must be installed in any open outlet port)
(5)
Pressure Gauge (optional) (7)
Install any of these parts in the remaining outlet
ports on the manifold block.
NOTE: Any port not used by a pressure gauge (7) or
zerk grease fitting (4) MUST have a plug (5)
installed in the opening.
Retrofitting Existing
Installations
NOTE: These instructions assume grease is already
loaded in injector valves.
j
k
FIG. 9
12. Wrench tighten then torque to 50 in. lbs (5.6 N•m).
13. Install vent tube (m) between vent port (n) and fitting
(k) (FIG. 10).
Installation
1. Disconnect power source.
k
2. Relieve pressure, page 2.
3. Remove existing plumbing installed between pump
element (c) (FIG. 2) and injector inlet (g) (FIG. 7).
m
n
4. Continue installation following Installation Instructions, Steps 3 - 14, on pages 2 - 4.
FIG. 10
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.
Original instructions. This manual contains English. MM 3A0526
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
Copyright 2010, Graco Inc. is registered to ISO 9001
www.graco.com
6/2010

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