INSERT 2817193 - Caterpillar

Check all mating surfaces. Replace any parts that have scratches or burrs that could cause leakage. Clean all metal parts in clean solvent. Blow dry with air. Do not wipe dry with cloth or paper towel because lint or other matter can get into the hydraulic system and cause damage. Do not use a coarse grit or try to file or grind these parts. Lubricate all seals with clean petroleum jelly such as Vaseline.Do not use excessive lubricant on seals for meter section.Refer to parts listings covering your steering control unit when ordering replacement parts. A good service policy is to replace all old seals with new seals.Control End
Figure 12
Figure 12A1 Use a needle nose pliers to lower check ball retainer into check valve hole of housing. Make sure retainer is straight (not tilted on edge) in housing, see Fig. 12.2 Install check ball in housing.3 Lubricate 5/8" diameter seal and 7/16" diameter seal. Install seals on check ball seat as shown in Fig. 12.4 Lubricate check ball seat and seals thoroughly before installing seat in housing. When installing seat do not twist or damage seals. Install check ball seat in housing, insert open end of seat first, see Fig. 12. Push check ball seat to shoulder of hole.5 Install set screw (not used on units with integral column, see Fig. 12A). Use a 1/4" allen wrench to torque set screw to 100 inch pounds. To prevent interference, make sure top of set screw is slightly below housing mounting surface.
Figure 136 Assemble spool and sleeve carefully so that the spring slots line up at the same end. Rotate spool while sliding parts together. Some spool and sleeve sets have identification marks, align these marks as shown in Fig. 13. Test for free rotation. Spool should rotate smoothly in sleeve with finger tip force applied at splined end.
Figure 147 Bring spring slots of both parts in line and stand parts on end of bench. Insert spring installation tool through spring slots of both parts. Tool is available as part no. 600057. Position 3 pairs of centering springs (or 2 sets of 3 each) on bench so that extended edge is down and arched center section is together. In this position, insert one end of entire spring set into spring installation tool, as shown in Fig. 14, with spring notches facing sleeve.8 Compress extended end of centering spring set and push into spool sleeve assembly withdrawing installation tool at the same time.9 Center the spring set in the parts so that they push down evenly and flush with the upper surface of the spool and sleeve.10 Install pin through spool and sleeve assembly until pin becomes flush at both sides of sleeve.
Figure 15
Figure 1611 Position the spool and sleeve assembly so that the splined end of the spool enters the 14 hole end of housing first, see Fig. 16. Attention: Be extremely careful that the parts do not tilt out of position while inserting. Push parts gently into place with