RING 1708848 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     311-1362     Vacuum Gauge Gp     1    Start By:
Connect the steering frame lock.
Release the system pressure.
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
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 attachments have been lowered, 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 g01397769
Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply 138 kPa (20 psi). This procedure will pull a vacuum on the hydraulic system.
Illustration 2 g03160081
Remove bolts (1). Repeat this step for the opposite side of the machine.
Remove cover (2) .
Illustration 3 g01404536
Disconnect harness assemblies (4) .
Disconnect tube assemblies (5) .
Remove bolts (3) and control manifold (steering backup) (6) .Installation Procedure
Install control manifold (steering backup) (6) in the reverse order of removal.