GEARBOX AS- 4833506 - Caterpillar

Removal Procedure
Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, " Hydraulic System Pressure - Release".
Hydraulic oil pressure can remain in the hydraulic system on this machine after the engine and pump have been stopped. Serious injury can result if this pressure is not released before any service is done on the hydraulic systems. In order to prevent possible injury, release the hydraulic system pressure before working on any fitting, hose, or hydraulic component.Lower all attachments to the ground before service is started. If the hydraulic system must be serviced, tested, or adjusted with the attachment in the raised position, the attachments and lift cylinders must be supported properly.Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made.
Illustration 1 g01716835
Drain the hydraulic oil into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change".
Disconnect hose assemblies (1), (2), and (6). Disconnect harness assembly (3). Remove block (4) and tube assembly (5) .
Illustration 2 g01716838
Attach a suitable lifting device in order to support piston pump (7). Remove bolts (8). Remove piston pump (7) .