TUBE AS 8R4560 - Caterpillar

Image1.1.2
7) Remove the two retaining screws from each solenoid flange at the front of the valve, starting at the front top location (3B). Set screws aside for reuse.
Image1.2.1
8) To remove the solenoid, turn the solenoid in order to slide the edge of the screwdriver under the lip. Apply pressure with a finger from the opposite side of the solenoid while prying with the screwdriver. While using the screwdriver to pry, ensure the harness is protected and not pinched.
9) Insure that the new solenoid has all three o-rings present.
Image1.3.1
10) Install the lower front solenoid (1B). Install the solenoid into the valve cavity by pushing on the center of the connector as shown.
Pushing on the connector in any other location can damage the connector.
Image1.4.1
11) Install the retaining screws removed in Step 7. Alternatively tighten the screws to seat the solenoid in the cavity. Tighten the screws to a torque of 2.5 +/- 0.5 Nm.
The solenoid can be damaged if the screws are not tightened evenly.
12) Repeat the installation for the remaining two front solenoids (2B and 3B), working from the bottom to the top.
13) Reinstall all three front connectors to the solenoids (1B, 2B, and 3B). The harness lead for 1B has RED tape on the harness, the harness lead for 2B has NO tape on the harness, and the harness lead for 3B has GREEN tape on the harness.
Image1.5.1
14) Disconnect the three harness lead wires from the three solenoids at the front of the valve, starting at the rear top location (3A).
15) Remove the two retaining screws from each solenoid flange at the rear of the valve, starting at the rear top location (3A). Set the screws aside for reuse.
You will need to use a ball-end allen wrench.
16) To remove the solenoid, turn the solenoid in order to slide the edge of the screwdriver under the lip. Apply pressure with a finger from the opposite side of the solenoid while prying with the screwdriver. While using the screwdriver to pry, ensure the harness is protected and not pinched.
17) Insure that the new solenoid has all three o-rings present.
18) Install the lower front solenoid (1A). Install the solenoid into the valve cavity by pushing on the center of the connector as shown.
Pushing on the connector in any other location can damage the connector.
19) Install the retaining screws removed in Step 15. Alternatively tighten the screws to seat the solenoid in the cavity. Tighten the screws to a torque of 2.00 +/- 0.25 Nm (17.7 +/- 2.2 lb in).
The solenoid can be damaged if the screws are not tightened evenly.
20) Repeat the installation for the remaining two rear solenoids (2A and 3A), working from the bottom to the top.
21) Reinstall all three rear connectors to the solenoids (1A, 2A, and 3A). The harness lead for 1A has RED tape on the harness, the harness lead for 2A has NO tape on the harness, and the harness lead for 3A has GREEN tape on the harness.
22) If the machine does not have