TUBE 2618531 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     284-5122     Stand Assembly     1    
8S-7641 Tube     1    
8S-7615 Pin As     1    
8S-8048 Saddle     1    
B     FT-2674     Vacuum Cap     1    Start By:
Connect the steering frame lock.
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.
Illustration 1 g03790984
Raise lift arms (1) and position Tooling (A) to support lift arms (1) .
Release the hydraulic system pressure.
Illustration 2 g02828580
Remove the breather from the hydraulic tank. Install Tooling (B) onto the hydraulic tank. Attach an air supply hose to Tooling (B). Apply 276 to 414 kPa (40 to 60 psi) of air. This procedure will pull vacuum on the hydraulic system.
Illustration 3 g02828597
Remove cover (2) .
Illustration 4 g03790979
Remove pilot accumulator (3) .Installation Procedure
Install pilot accumulator (3) in the reverse order of removal.