YOKE AS 1730587 - Caterpillar

Make sure all the hydraulic pressure is released from the system before any hydraulic lines or hoses are disconnected.
2. Disconnect linkage (1) from the lever assembly.3. Disconnect eleven hose assemblies (2). Cap or plug immediately. Mark or identify hose assemblies for later assembly.4. Remove three hex bolts (3).5. Remove loader implement control valve (4). For installation of the implement control valve, reverse the removal steps.Disassemble & Assemble Loader Implement Control Valve
Start By:a. remove loader implement control valve 1. Remove nuts (1). Separate the valve bodies. 2. Remove shims (2) and O-ring seals (3) from each valve body. Check seals for wear or damage. Replace if necessary. 3. Remove bolts (4).4. Remove cover (5). The following procedures are for the different types of control valve bodies. 5. Remove bolts (6), spool assembly (9), boot (7), and filter (8).6. Remove spring (10), ball (11), balls (12), housing (13) and piston (14).7. Remove plug (15), spool (16), spring (17) from valve body (18).8. Remove seat (20) and ball (19).9. Remove valve (21). 10. Remove plug (5).11. Remove spool (6).12. Remove spring (7) from valve body (8).13. Remove plug (9) and ball (10).14. Remove valve (11).15. Remove two bolts (1), spool assembly (4), boot (2) and filter (3). For assembly of the loader implement control valve, reverse the disassemble steps.
For all valve bodies and O-ring seals in the backhoe and loader implement group, the O-ring seals in the valve bodies can be damaged when the valve spool assemblies are installed. Upon installation of the valve spools, always install new O-ring seals and follow these procedures.
a. Install the front O-ring seal in the valve spool bore with a suitable lubricant.b. Install the valve spool from the rear (detent end) of the body. Push the spool forward, just enough to show the groove for the rear O-ring seal.c. Install the rear O-ring seal in the valve body, and then push the valve spool forward.End By:a. install loader implement control valve