BUCKET GP-ROCK 2544496 - Caterpillar

To prevent possible personal injury, make sure all cushion hitch compartments are completely lowered, the pressure from the hydraulic system is released and the engine has been shut off for a minimum of five minutes to be sure that the accumulator oil pressure is zero. The accumulator is filled with dry nitrogen. Do not loosen or remove the valve from the cap on top of the accumulator. A bleed screw at the bottom of the accumulator can be used to release any pressure that remains in the system.
1. Dinconnect all hoses (3) from accumulator bleed valve (1).2. Remove bolts (2) to remove accumulator bleed valve (1) and the bracket. 3. Remove bolts (4), and remove bracket (5) from the accumulator bleed valve. Use the reverse procedures of Steps 1 through 3 for the installation of the accumulator bleed valve.Disassemble Accumulator Bleed Valve
START BY:a. remove accumulator bleed valve 1. Remove plug (5), spring (3) and stem (2) from accumulator bleed valve body (1).2. If necessary, remove seal (4) from plug (5). 3. Remove connector (10), spacers (8), spring (7) and valve (6) from accumulator bleed valve body (1). If necessary, remove O-ring seal (9) from the connector. 4. If necessary, remove elbow (11), plugs (12) and (13) and connector (14) from the accumulator bleed valve body.Assemble Accumulator Bleed Valve
1. Inspect all of the accumulator bleed valve seals for wear or damage, and make a replacement if necessary. 2. Put the seals in position, and install connector (4), elbow (1) and plugs (2) and (3) in the accumulator bleed valve body. 3. Install seal (8) on plug (9).4. Install stem (6), spring (7) and plug (9) in accumulator bleed valve body (5). Make sure the clearance between the stem and valve body is not less than 0.015 mm (.0006 in.) or more than 0.023 mm (.0009 in.). 5. Install seal (13) on connector (14).6. Install valve (10), spring (11), spacers (12) and connector (14) in accumulator bleed valve body (5).7. For the correct valve adjustment, see Testing And Adjusting.END BY:a. install accumulator bleed valve