ACCUMULATOR GP-RIDE CONTROL 2280790 - Caterpillar

Removal Procedure
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
At operating temperature, the hydraulic tank is hot and under pressure.Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.Remove the filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. Remove the filler cap slowly in order to relieve pressure.
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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Illustration 1 g00604657
Remove the seat and the floorplates.
Remove bolts (1) and cover (2) .
Illustration 2 g00604672
Remove bolts (3) and the retainers that hold boots (4) in position. Move boots (4) up the control rods.
Remove the cotter pins and the pins in order to disconnect the control rods from the valve spools.
Disconnect hose (5) from the control valve.
Illustration 3 g00604698
Disconnect tube assemblies (6), (7), (8), and (9) .
Illustration 4 g00604710
Remove bolts (10), (12), and (13) in order to remove pilot control valve (11) from the machine.