ALTERNATOR GP-CHARGING 4588301 - Caterpillar

Start By:
Remove the bucket. Refer to Disassembly and Assembly, "Bucket - Remove".
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
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 g00923028
Install Tooling (A) under the front of the boom in order to support the boom. Support the boom to Dimension (X). Dimension (X) is 274 cm (108.0 inch).
Disconnect hose assemblies (1) on each side of the boom. Approximately 8 L (2 US gal) of oil will drain from each connection.
Illustration 2 g00877573
Disconnect tube assembly (2).
Remove bolt (3) and the washer.
Illustration 3 g00877578
Fasten a lifting sling and a hoist to the rod end of the stick cylinder.
Use Tooling (B) to remove pin assembly (4) and the spacer. Put a small wood block under the rod end of the stick cylinder. Lower the cylinder onto the wood block. Remove the shims at the rod end of the stick cylinder. Secure the rod of the stick cylinder so that the rod will not extend. The weight of the pin assembly and the tooling is approximately 115 kg (255 lb).
Illustration 4 g00877582
Fasten Tooling (C) and a hoist to the stick.
Illustration 5 g00877590
Remove bolt (6) from pin assembly (5).
Illustration 6 g00877593
Make sure that the threaded puller hole in pin assembly (5) is thoroughly clean prior to installation of Tooling (D). Use a lifting sling and a hoist to position Tooling (D). Remove pin assembly (5). The weight of Tooling (D) and pin assembly (5) is approximately 260 kg (575 lb).
Carefully separate the stick from the boom. The combined weight of the stick, the bucket cylinder, and the bucket control linkage varies from 4535 kg (10,000 lb) to 4925 kg (10,850 lb).
Remove the shims (if equipped) at the pin joint for the stick and the boom.