MANIFOLD 8E4387 - Caterpillar

Removal Procedure
Start By:
Remove the transmission hydraulic control relief valve. Refer to Disassembly and Assembly, "Relief Valve (Transmission Hydraulic Control) - Remove and Install".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00765655
Remove torque converter inlet relief valve (1) from the torque converter.
Remove O-ring seal (2) (not shown) from the torque converter inlet relief valve. Installation Procedure
Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. All disassembly and all assembly procedures must be performed on a clean work surface and in a clean hydraulic area. Keep cleaned parts covered and protected at all times.Note: Prior to assembly, all threads that require sealant must be cleaned with a tap.Note: O-rings, gaskets, and seals should always be replaced. A used O-ring may not have the same sealing properties as a new O-ring. Use 1U-6396 O-Ring Assembly Compound during the assembly procedure.Note: Lubricate all O-ring seals and components with the lubricant that is being sealed.
Illustration 2 g00765655
Install O-ring seal (2) (not shown) on the torque converter inlet relief valve.
Install torque converter inlet relief valve (1). End By:
Install the transmission hydraulic control relief valve. Refer to Disassembly and Assembly, "Relief Valve (Transmission Hydraulic Control) - Remove and Install".