Graco PR70 Series Handbuch
3A3229B
EN
Kit Instructions
PR70™Solenoid Valve
Upgrade Kit
For replacing the air cylinder solenoid valve on all PR70 fixed or variable ratio systems
that meter, mix, and dispense two-component materials. For professional use only.
Part No. 17J520
100 psi (0.7 MPa, 7 bar) Maximum Air Inlet Pressure
Important Safety Instructions
Read all warnings and instructions in this manual
and in PR70™and PR70v™with Advanced Display
Module Operation and Maintenance Manual
312759. Save all instructions.
Related Manuals
23A3229B
Contents
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Kit 17J520 Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pressure Relief Procedure . . . . . . . . . . . . . . . . . 4
Access the Valve Assembly . . . . . . . . . . . . . . . . 4
Replace the Solenoid Valve . . . . . . . . . . . . . . . . 5
Replace the Cable Harness . . . . . . . . . . . . . . . . 6
Related Manuals
Overview
These instructions are for upgrading the air cylinder
solenoid valve on all models of PR70 fixed or variable
ratio systems. The new solenoid valve, part #17K155,
included in this kit replaces part #120899. This kit
17J520 should be ordered if part #120899 fails and
needs to be replaced.
Important features of this upgrade kit include:
• It retains the existing dispense valve.
• The solenoid valve and dispense valve are
mounted to the air cylinder vertically instead of
horizontally.
• The cable harness included in the kit now has 4
cables instead of 3. The retract and extend sig-
nals have been split into separate cables. They
were combined into one cable previously.
Contact Graco Ohio Technical Assistance at
information or assistance with this upgrade kit.
PR70 Operation and Parts Manuals
Part Description
312759 PR70 and PR70v with Advanced Display
Module Operation and Maintenance Manual
312760 PR70 and PR70v Repair and Parts Manual
312394 PR70 and PR70v Feed Systems Manual
312761 PR70v Integrated Heat Instructions - Parts
Manual
Kit 17J520 Parts
3A3229B 3
Kit 17J520 Parts
* Not Shown.
FIG. 1: Parts in Valve Upgrade Kit 17J520
1
8
4
6
2
7
2
Ref Part Description Quantity
1 17D916 BRACKET, shelf 1
2 128266 SCREW, cap, socket head, 4-40 4
4 128538 CABLE, gca, pr70 1
5 61/2906-BK/11* HOSE, .245 id x .375 od, pu, 95 dur 2 ft
6 C27076 NUT 4
7 128170 SCREW, hex, head, m4 x .7 x 10 mm 2
8 17K155 VALVE, solenoid, 3 way 1
Installation
43A3229B
Installation
Shutdown
Perform the following steps to shut down the machine
before proceeding with installation of this upgrade kit.
1. Place a waste container below the dispense valve.
2. Perform the Pressure Relief Procedure to relieve
pressure to the PR70.
3. Unplug the power cord.
Pressure Relief Procedure
1. At the Home screen on the Advanced Display Mod-
ule (ADM), press to access Setup mode. Use
the directional keypad to navigate to the Manual
screen.
2. Press the Open Dispense Valve key on the
Manual screen to relieve chemical pressure.
3. Press the Machine Disable Mode key.
4. Press down the system air pressure relief switch to
stop the air supply and to vent air pressure in the
machine. It is the yellow tab at the left, rear of the
PR70. The hole in the tab should be visible.
5. If necessary, run a lock through the hole to lock the
tab in place. This prevents the system air pressure
from being inadvertently enabled.
Access the Valve Assembly
1. Turn the shield locking screws counterclockwise on
both sides to remove the screws.
2. Remove the protective shield.
NOTE: The solenoid valve assembly is located at the
rear of the PR70 and the Fluid Control Module (FCM) is
located above it.
WARNING
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if
splashed in the eyes or on skin, inhaled, or swallowed.
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers, and other
body parts.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate equipment when in the work area to help
prevent serious injury.
The PR70 equipment stays pressurized until pressure
is manually relieved. To help prevent serious injury
from toxic fumes and moving parts, follow the Pres-
sure Relief Procedure before servicing or making
repairs to the PR70.
FIG. 2: Removing the Shield
FIG. 3: Original Assembly
Shield Locking Screw
Solenoid Valve Assembly
Fluid Control
Module
Installation
3A3229B 5
Replace the Solenoid Valve
1. Remove the three socket head screws holding the
air cylinder solenoid valve and the dispense sole-
noid valve.
2. Remove the two valves from the cylinder end block.
3. Disconnect all air line tubes from the air cylinder
solenoid valve.
4. At the dispense solenoid valve, disconnect only the
1/4 in. air line tube from the air manifold as shown in
Figure 4.
5. The cable harness running from the FCM has three
cables. Disconnect the two 3-pin square cables
from both valves using a Phillips screwdriver to
loosen the screws before removing the connectors.
6. Disconnect the third cable from the Linear Variable
Differential Transformer (LVDT) cable. See Figure
10 on page 7 for the location of the LVDT.
NOTE: Discard the air cylinder solenoid valve as the
new valve (part #17K155) replaces it. The original dis-
pense solenoid valve will be installed along with the new
air cylinder solenoid valve.
NOTE: The air cylinder solenoid valve and dispense
solenoid valve need to be installed vertically instead of
horizontally on the cylinder end block. This requires the
use of the bracket (part #17D916) included in the valve
replacement kit.
7. Use the two hex screws (part# 128170) included
with the kit to attach the bracket to the air cylinder
end block as shown in Figure 5.
NOTE: After the bracket is attached to the air cylinder,
the valves are attached to the bracket. The dispense
solenoid valve that was removed is again placed on the
inside and the new air cylinder solenoid valve is on the
outside.
8. As shown in Figure 6, attach both valves to the
bracket using the four socket head screws (part
#128266) and nuts (part #C27076) included in the
kit. For an additional view of the orientation of the
valves, see Figure 1 on page 3.
NOTICE
Do NOT disconnect the two 1/4 inch air lines at the
dispense solenoid valve that open and close the dis-
pense valve. Reconnecting these air lines incorrectly
could damage the machine.
FIG. 4: Dispense Solenoid Valve
Disconnect
Do not Disconnect
FIG. 5: Attaching the Bracket
FIG. 6: Attaching the Valves to the Bracket
Use these Two Holes to Mount the Bracket
Insert Screws Here
Installation
63A3229B
9. Cut the air line tubing (part #61/2906-BK/11)
included in the kit to the appropriate lengths to make
the retract and extend air cylinder connections.
Refer to Figure 7 below.
10. Connect the air line tubing from the air cylinder
retract elbow fitting to the solenoid valve retract
elbow fitting.
11. Connect the air line tubing from the air cylinder
extend elbow fitting to the solenoid valve extend
elbow fitting.
12. Reconnect all other air lines to the dispense sole-
noid valve and the air cylinder solenoid valve.
Replace the Cable Harness
1. Remove the existing cable harness that is con-
nected to the FCM. See Figure 3 on page 4.
2. Connect the new cable harness (part #128538) to
the FCM at port 5. The harness must be angled 45
degrees to connect, as shown in Figure 8.
3. The cables are marked 1 through 4. Make the con-
nections as shown below.
NOTE: In Figure 9, the air line tubing has been removed
from the drawing to clearly show where the cables con-
nect.
FIG. 7: Attaching the Air Line Tubing
Retract
Extend
FIG. 8: Connecting the Cable Harness to the FCM
Cable Number Connection
1Retract
2 Dispense Valve
3 Extend
4 Linear Position (to LVDT)
FIG. 9: Connecting the Cables to the Valves
5
6
7
567
1 - Retract
3 - Extend
2 - Dispense Valve
Installation
3A3229B 7
4. When you have fastened the three cables to the
valves, use a Phillips screwdriver to tighten the
screws and secure the connectors.
5. Connect cable 4 to the cable running from the
LVDT.
NOTE: Figure 10 is a top view of a PR70 with the shield
and several components removed to show the location
of the LVDT.
NOTE: Once all parts and air lines are securely fas-
tened, replace the protective shield and insert and
tighten the shield locking screws before connecting
power and turning on air to the machine.
FIG. 10: Connecting to the LVDT
LVDT
4 - Linear
Position
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 3A3229
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2014, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision B, February 2017
Graco Information
Sealant and Adhesive Dispensing Equipment
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor, go to www.graco.com and select
“Where to Buy” in the top blue bar, or call to find the nearest distributor.
If calling from the US: 800-746-1334
If calling from outside the US: 0-1-330-966-3000
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10
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