Replace The Solenoid Valve - Graco PR70 Kit Instructions

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.
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.
Do not Disconnect
F . 4: Dispense Solenoid Valve
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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.
3A3229B
NOTICE
Disconnect
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.
Use these Two Holes to Mount the Bracket
F . 5: Attaching the Bracket
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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.
F . 6: Attaching the Valves to the Bracket
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Installation
Insert Screws Here
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