HOSE AS 4394869 - 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.
Illustration 1 g00856055
Remove bolts (1) and cover (2).
Release hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
Oil will drain from the pilot manifold valve when the solenoid valve is removed. Place a pan under the pilot manifold valve in order to contain the drain oil.
Illustration 2 g00856056
Disconnect harness assembly (3). Remove bolts (5) and solenoid valve (4). Installation Procedure
Check the condition of the O-ring seals that are used in the valve body. If the O-ring seals are worn or damaged, use new parts for replacement.
Illustration 3 g00856056
Position solenoid valve (4) and install bolts (5). Tighten the bolts to a torque of 4.0 0.4 N m (35 4 lb in). Connect harness assembly (3).
Illustration 4 g00856055
Position cover (2) and install bolts (1).
Check the oil level in the hydraulic oil tank. Fill the hydraulic oil tank to the correct level. Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities".