TUBE 2624597 - Caterpillar

Connect the steering safety link.
7. Disconnect end (14) from valve spool. Disconnect eyebolt assembly (6) from follow-up mechanism.8. The steering valve spool should be centered by its centering springs. With the diesel engine operating at high idle speed, the pressure on each gauge (at lines 12 and 13) will be in the approximate range of 55 15 psi (3.9 1.0 kg/cm2). The difference between the pressures must not vary more than 20 psi (1.4 kg/cm2). Add or remove shims (3) to balance the pressure. If the gauge reading connected to line (13) is higher, add shims (3).Steering Gear Adjustment
If troubleshooting the system or when assembling the steering gear, the following items should be checked.1. Center tooth of the gear sector meshes with center notch of the gear nut (with right hand side cover removed).2. Backlash between the gear sector and gear nut is set at .000 to .006 in. (0.0 to 0.15 mm). Rotate the eccentric gear sector shaft housing for adjustment (with right hand side cover removed).3. Tighten setscrew (9) to remove end clearance of shaft, back out screw (9) 1/8 turn, and tighten locknut (10) to 50 5 lb. ft. (6.9 0.7 mkg).4. The steering control valve spool should be in the NEUTRAL or centered position because of its centering springs. Turn the steering wheel to its extreme left and right positions while noting the linear movement (B) of lever (11) and rod end (14). With the steering wheel turned to its centered position, or when lever (11) is in the middle of its stroke, adjust end (14) to permit a loose pin fit with the valve spool. Install the pin in a horizontal position as illustrated. Tighten locknut (15). Refer to the topic CHECKING STEERING SPEED for an additional method of final adjustment to lever (11) and end (14).Follow-Up Linkage Adjustment
If troubleshooting the system or when assembling the follow-up linkage, the following items should be checked.5. Tighten plugs (16 and 19) and then adjust to 1/4 to 1/2 turn loose. Install the locking pins.6. Tighten nut (21) to remove all end play between link assembly and end. Then loosen nut (21) 1/6 turn.7. Back off nut (7) as far as possible. Adjust nut (18) to obtain reference dimension (D) [.25 in. (6.4 mm)]. Adjust end (17) to obtain reference dimension (C) [9.60 in. (243.8 mm)].8. Adjust nut (5) on link assembly (6) to obtain 1.38 in. (35.0 mm) of eyebolt assembly thread projection beyond nut [reference dimension (A)].
FOLLOW-UP LINKAGE
5. Nut. 6. Eyebolt assembly. 7. Nut. 16. Plug. 17. End. 18. Nut. 19. Plug. 20. End. 21. Nut. 22. Screw. A. 1.38 in. (35.0 mm) reference dimension. C. 9.60 in. (243.8 mm) reference dimension. D. .25 in. (6.3 mm) reference dimension.Checking Centered Turning Angle
Disconnect steering safety link.9. All steering linkage and other controls should be connected. With the diesel engine operating at high idle speed, turn the machine to right hand stop and left hand stop, noting the clearance dimension between the