TUBE AS 1474814 - Caterpillar

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Remove the piston pump (propel).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 work tools have been lowered to the ground, and the 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.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the machine. 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 to collect and contain fluids in Caterpillar machines.Dispose of all fluids according to local regulations.
Drain the hydraulic oil. Refer to Operation and Maintenance Manual"Hydraulic System Oil - Change" for the correct draining and filling procedures.
Illustration 1 g06053907
Disconnect hose assembly (1), hose assembly (2), and hose assembly (3).
Illustration 2 g06053911
Remove bolts (4).
Use suitable lifting device to remove auxiliary piston pump (5). The weight of auxiliary piston pump (5) is 35 kg (77 lb)Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A — Loctite® Moly Paste 1
Install auxiliary piston pump (5) in the reverse order of removal.
Apply Tooling (A) to input shaft splines of auxiliary piston pump (5) prior to assembly.