![]() ![]() Although you may get proper feel with the thickness gauge, a gap will be produced between the adjust screw of the crosshead and the valve and you cannot make correct adjustment. If the adjust screw is made too loose, the former state will be restored. While gradually loosening the adjust screw of the crosshead, tighten the lock nut of the crosshead at a position where your feel of the thickness gauge becomes proper. With the thickness gauge inserted, loosen the adjust screw of the crosshead and check that you do not feel the thickness gauge light. NOTICE It is deemed appropriate if the thickness gauge goes in with some unsmoothness during insertion and then moves smoothly with slight binding feel after insertion. ![]() Insert a thickness gauge in between the rocker arm and the crosshead and turn the rocker arm adjust screw to adjust a clearance before tightening the lock nut. Correct adjustment cannot be made unless the adjust screw is completely separated from the valve stem. CAUTION Before adjustment, make sure that the tightening bolts of the cylinder head, rocker arm support, nozzle clamp, and camshaft bearing cap are tightened with their specified torque. ![]()
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