HOUSING 5W0978 - Caterpillar

Removal Procedure
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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns.To prevent possible personal injury, release the pressure in the work tool hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed.Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch.
Release the hydraulic system pressure. Refer to the Disassembly and Assembly, "Hydraulic System Pressure - Release" in this manual.
Put identification marks on all lines, all hoses and all tubes for installation purposes. Cap all lines, hoses and tubes in order to prevent foreign material from entering the hydraulic system.
Illustration 1 g00847983
Disconnect hose assemblies (1) from the top of the control valve. Disconnect electrical connections (2).
Disconnect hose assemblies (3) and (5) from the side of the control valve.
Disconnect hose assemblies (4) and (6) from the bottom of the control valve.
Illustration 2 g00848030
Fasten two lifting straps and a hoist to the control valve. Tighten the lifting straps in order to support the control valve before the control valve is disconnected.
Illustration 3 g00848031
Remove bolts (7) that connect the control valve to the swing motor. Lift the control valve from the machine. The weight of the control valve is 50 kg (110 lb).