PISTON 6V3171 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 1
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
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.
Note: Install caps and plugs on all openings in order to prevent dirt or debris from entering the system. Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will prevent dirt from entering the internal mechanism.
Position a suitable container below the steering check valve in order to contain the hydraulic oil for storage or for disposal.
Drain the hydraulic oil from the steering tank into a suitable container for storage or for disposal. The capacity of the steering tank is 40 L (11 US gal). Refer to Operation and Maintenance Manual, "Steering System Oil - Change".
Illustration 1 g00696210
Attach Tool (A) to plate (3). Position a suitable lifting sling on Tool (A). Secure the suitable lifting sling to a hoist.
Remove bolt (1) and the washer. Remove four bolts (2) and the washers. Remove plate (3).
Illustration 2 g00696212
Disconnect wire harness (4) at the electrical connection.
Disconnect hose assembly (5), hose assembly (6), and hose assembly (7) from the steering check valve.
Illustration 3 g00696213
Disconnect two hose assemblies (8) from the steering check valve.
Illustration 4 g00696214
Position a suitable lifting sling around steering check valve (10), as shown. Secure the suitable lifting sling to a hoist. Remove three bolts (9) and the hard washers. Remove steering check valve (10) from the machine.