RECEPTACLE AS-CONNECTOR 9X7148 - Caterpillar

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 system. In order to prevent possible injury, release the hydraulic system pressure before working on any fitting, hose, or hydraulic component.Lower all work tools to the ground before service is started. If the hydraulic system must be serviced, tested, or adjusted with the work tool in the raised position, the work tool 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.
Introduction
When either of the implement pumps have been worked on, ensure that the pump cases are full of oil prior to starting the engine. Perform the following procedure to prime the pumps. Required Tools
Illustration 1 g01638973
Tooling (D)
Table 1
Required Tools    
Tool     Item     Part Number     Description     Qty    
D     D1     6V-4144     Coupler     1    
D2 124-1891     Permanent Coupling     1    
D3 122-6887     Hose     1    Procedure
Note: The oil pressure from the supply source should not exceed 200 kPa (29 psi) or damage can occur to the seals in the pump.
Illustration 2 g01958752
Remote pressure taps on 973D (S/N: LCP1-108) (R10) Front implement pump case filling port (R11) Rear implement pump case filling port
Illustration 3 g01546385
Remote pressure taps on 973D (S/N: LCP109-Up) (R10) Front implement pump case filling port (R11) Rear implement pump case filling port
Connect hose (D) to port (R10) for priming the front implement pump. Connect hose (D) to port (R11) for priming that rear implement pump.
Attach a suitable funnel to hose (D). Pour 3 L (3.2 qt) of hydraulic oil into hose (D) .ReferenceRefer to Operation and Maintenance Manual, SEBU8357 for the proper type of oil to use.