PANEL GP-INSTRUMENT 2500906 - Caterpillar

Removal Procedure
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 implement 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.
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 operating any compartment or disassembling any component containing fluids.After collecting all fluids in suitable containers, dispose of all fluids according to local regulations and mandates.
Illustration 1 g00759013
Close the jaws of the work tool and ensure that the work tool is resting on a hard, level surface. Position the work tool on a side, as shown. Shut the engine off on the host machine. Relieve the pressure in the hydraulic system. Refer to the service manual for the host machine for the proper procedure. Close the ball valves on the stick of the host machine.
Put identification marks on all hoses for installation purposes. Plug all hoses and openings in order to help prevent fluid loss and contamination of the fluid system.
Illustration 2 g00715222
The speed control valve has been removed for photographic clarity.
Open two screw plugs (1) on speed control valve (2) in order to relieve the system of any additional pressure. Close the plugs after the pressure has been released.
Illustration 3 g00712250
Remove the five bolts and the washers that secure speed control valve (2) to the cylinder. Remove the valve from the cylinder. The weight of the valve is 20 kg (44 lb).
Illustration 4 g00715216
Remove three O-ring seals (4) from valve (2) .