CONTROL GP-ENGINE MONITORING 1400016 - Caterpillar

Image1.4.1
Cap End Side/Bottom Side of Valve Exploded View:
Image1.5.1
Disassembly Procedure:
Before start disassembling ensure the valve is clean and free from contamination.
1. Remove all screws from boot mounting plate. Refer to Image1.7.1.
2. Dismantle boot and push it to the upper end of the linkage.
3. Remove the bolts to remove console.
4. Remove bolts and dismantle the floor plate.
Image1.7.1
5. Dismantle the linkage lock pin. Refer to Image1.8.1.
6. Dismantle the linkage connecting pin.
7. Disconnect the linkage rods from the spool tang on the spool that is to be replaced.
8. Remove the plate seal. This action will expose the upper spool seal that will need to be replaced after the replacement spool has been inserted.
Image1.8.1
9. Remove screws (A) and spool cap (B) on the valve slice that requires the spool change. The spool spring pack will be exposed. Withdraw the spool assembly by pulling in a downward direction to extract. Ensure that the spool seal comes away with the spool. Refer to Image1.9.1.
Note: There will be a small amount of oil loss as the spool is withdrawn from the valve body. Be ready with the replacement spool to insert back into the slice to complete the changeover.
Image1.9.1
New Swing Spool Assembly Kit:
Image1.10.1
Tang/Clevis End Side (Seal Orientation View):
Refer to Image1.11.1.
(A) Install lip seal (C) by having the groove face of the seal towards the housing (counter bore) seal seat. Check for the proper installation of the seal.
(B) Install wiper seal (D) by having the smaller diameter towards the tang clevis.
(C) There is no orientation required for the plate seal (E).
Image1.11.1
Assembly Procedure:
Refer to Image1.12.1.
Step 1. Install the lip seal. Check the seal for proper seating.
Step 2. Install the wiper seal.
Step 3. Install the plate seal.
Step 4. Tighten the plate seal with screws partially (do not tight the screws fully. Use a 3/16 Allen Key.
Image1.12.1
Valve Bottom/Cap End Side Assembly View (Cut Section):
Refer to Image1.13.1.
(A) Install the lip seal. The groove face of the seal should be towards the housing (counter bore) seal seat. Check for the proper installation of the seal.
(B) Install the wiper seal. The smaller diameter should be towards the plate seal.
(C) There is no orientation required for plate seal.
Image1.13.1
Note: Do NOT over tighten the end mechanism tightening screw. Over tightening will create spool stickiness. Hand tight is enough.
Refer to Image1.14.1.
Step 1. Insert a new swing spool in the spool bore completely until the clevis on the other side is at the level of other spools. Fit it with the tang or with an Allen key in order to arrest the spool rotation while assembling the end mechanism. Before installation of spool, lubricate the spool with hydraulic oil.
Step 2. Clean the housing lip seal groove and install a new lip seal and the existing wiper seal.
Step 3. Install the existing plate seal at the outer diameter of spool.
Step 4. Guide the spring seats with the spring and install it by guiding the spool outer diameter (cap end). Refer to Image1.14.1, Step 4.
Image1.14.1
Step 5. Install the