12. Install upper limitation column and sealing ring
13. Install rear cover, combined gasket, bolts, the
position shown in the picture by arrow is cotter
bolt.
Matters need attention during assembling
1. Clean all parts (except rubber ring) with gasoline or kerosene before assembling. If there is paint on
combination surface, clean with acetone, it is forbidden to clean parts with cotton yarn or cloth, soft
banister brush or silk shall be used to clean parts, it is better to blow with compressed air, after steering
unit is installed well, add 50-100ml hydraulic oil before install in machines, turn around spool, install in
machine for test if everything is normal
2. Combination surface of valve body, spacer plate, stator and rear cover must be highly clean, do not knock
or scratch.
3. There is spot mark on end surface of rotor and linkage shaft, that is teeth of linkage shaft groove shall
align with multiple spline groove inside rotor teeth bottom, pay attention to the relative position during
installation.
4. Bolts of rear cover shall adopt qualified combined gaskets.
5. When fastening seven bolts of rear cover, screw on every two bolts in order, screw on gradually, the
fastening torque is 4050 N.m.
6. (Note) ―P‖, ‖T‖, ‖A‖, ―B‖ oil mouth of valve body and valve block shall align with each other one by one
during installation.
SPC000017 Steering Unit
Page 14
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