grand dink 125 mmc 1 Werkstatthandbuch : Seite 83

                    7. CYLINDER/PISTON                                          GRAND DINK 125/150



 Measure the piston pin O.D.
 Service Limit: 14.96mm replace if below




 Measure the piston O.D.
 · Take measurement at 9mm from the
      bottom and 90° to the piston pin hole.
 Service Limit: 57.90mm replace if below
 SH30DA 57.30mm replace if below
 SH25DA 52.30mm replace if below
 Measure the piston-to-piston pin clearance.
 Service Limit: 0.02mm replace if over


 CYLINDER INSPECTION
 Inspect the cylinder bore for wear or damage.
 Measure the cylinder I.D. at three levels of
 top, middle and bottom at 90° to the piston
 pin (in both X and Y directions).
 Service Limit: 58.10mm repair or replace if
                 below
 SH30DA 57.50mm repair or replace if over
 SH25DA 52.50mm repair or replace if over
 Measure the cylinder-to-piston clearance.
 Service Limit: 0.1mm repair or replace if
                over

 The true roundness is the difference between
 the values measured in X and Y directions.
 The cylindricity (difference between the            Top
 values measured at the three levels) is subject
 to the maximum value calculated.
 Service Limits:                                   Middle
  True Roundness: 0.05mm repair or replace
                      if over                      Bottom
  Cylindricity: 0.05mm repair or replace if over


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