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different, enclose the one with a big bore first and put it into valve housing (1) completely and cling to inner end surface of valve housing. ② During the next assemble process, care should be taken that the steering shaft avoid any axial thrust, and keep compaction between steering bearing and valve housing all the time for fear every part of bearing unhitch or disturb. 8.4 Install the valve components on the valve, keep the medial rack of steering ball nut align to bearing hole center of pitman shaft and keep upper oil port of valve housing align to oil return hole of housing, then thrust rotary spool valve-screw and nut components into housing slowly (4), and use hexagon bolt (GB/T5786-1986-M12 × 1.5 × 30) (5) and spring washer (GB/T93-1987 12) (6) join the valve housing with housing, tightening torque is 80 N·m~90 N·m. Keep the gullet of rack center of steering nut lies on output shaft center of housing. 8.5 (Figure 9) Assemble pitman arm shaft components (5) with side cover components (4) together, turn the side cover as entad as possible, mount nut (1) on the adjust screw of pitman arm shaft components and do not screw to the end. Then enclose the components to housing (6). Thereinto, should adjust the position of steering ball nut when assembly, ensure Figure 9 medial sector gear of pitman arm shaft engage with the medial gullet of steering nut. Finally, use six light spring washer GB/T859-1987 10 (3) and hexagon bolt (2) join the side cover with |