b. Order of assembly
valve core-spring piece-valve sleeve-shift arm-shim-valve body-slip ring-block ring-
front cover-steel ball-screw cover-block plate-interlock shaft -rotor-stator
-spacing sleeve-back cover.
Fig5.4 Structure of steering unit
5.3.5 Inspection on reassembly of steering system
(1) Check the arrangement of the hydraulic pipeline and the turning direction for
correctness.
(2) Check the force necessary to turn the steering handwheel to right and left until it
can’t be turned any more to see if they are identical each other and check the operation
if the steering handwheel for smoothness during above operation.
(3) After assembling a steering system, put up the turning wheel, make the engine
to run at a slack speed, then turn the steering wheel slowly, and do it times and times, to
exhaust the air in the hydraulic pipeline and cylinder. Check whether voice for it to turns
is normal or not. If abnormal voice can’t be heard, it says that the air has been
exhausted absolutely. Then make the engine run at a slack speed, to go up the oil
temperature.
(4) Measure the operation of steering
Place the truck on the dry and flat road. Attach the spring equilibrator to the verge
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