26
9)
Crankshaft
Inspection
(1) To measure run-out of the crankshaft, support the
crankshaft using a V block as shown in the right
figure, apply a dial gauge to the crankshaft center
journal, read the indication on the dial gauge rotating
the shaft one turn gently. If the service value is
exceeded, correct or replace.
(2) Check the crankshaft oil seal for damage or wear on
the contact surface and oil hole clogging.
(3) Check the crankshaft journal and pin for damage,
irregular wear (ellipticity, conicalness) and shaft
diameter. If the service limit is exceeded, replace the
bearing (bush) and/or crankshaft. Measure the
dimensions of the journal and pin in the AA and BB
directions at the position 1 and 2 avoiding the oil
holes.
Irregular wear limit of crankshaft journal and pin
0.05 mm
Crankshaft run-out (mm)
Standard assembling value
Service limit
Less than 0.03
0.06
039X
040X
Model J843
Journal and pin size
Shaft dia. at crankshaft journal (
φ)
Shaft dia. at crankshaft pin (
φ)
S.T.D.
Outside dia.
finishing
dimension
Repair value
Outside dia. finishing
dimension Repair
value
57.957 – 67.970
Less than 57.90
43.964 – 43.975
43.90
Model N843L
Journal and pin size
Shaft dia. at crankshaft journal (
φ)
Shaft dia. at crankshaft pin (
φ)
S.T.D.
Outside dia.
finishing
dimension
Repair value
Outside dia. finishing
dimension Repair
value
67.957 – 67.970
Less than 67.90
51.964 – 51.975
Less than 51.90
* Replace the crankshaft if diameter is below the repair value.
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Summary of Contents for CM284
Page 4: ...3 Chapter 1 GENERAL Downloaded from www Manualslib com manuals search engine ...
Page 29: ...28 13 Oil flow 045X Downloaded from www Manualslib com manuals search engine ...
Page 84: ...83 Chapter 3 TRANSMISSION AND BRAKE Downloaded from www Manualslib com manuals search engine ...
Page 87: ...86 4 Power Flow Range gear 304X 305X Downloaded from www Manualslib com manuals search engine ...
Page 88: ...87 5 Power Flow PTO 306X 307X Downloaded from www Manualslib com manuals search engine ...
Page 117: ...116 Downloaded from www Manualslib com manuals search engine ...
Page 118: ...117 Chapter 4 HST SYSTEM Downloaded from www Manualslib com manuals search engine ...
Page 135: ...134 Downloaded from www Manualslib com manuals search engine ...
Page 136: ...135 Chapter 5 POWER STEERING Downloaded from www Manualslib com manuals search engine ...
Page 150: ...149 Chapter 6 REAR AXLE ASSEMBLY Downloaded from www Manualslib com manuals search engine ...
Page 158: ...157 Chapter 7 HYDRAULIC LIFT SYSTEM Downloaded from www Manualslib com manuals search engine ...
Page 167: ...166 Downloaded from www Manualslib com manuals search engine ...
Page 168: ...167 Chapter 8 IMPLEMENT DRIVE Downloaded from www Manualslib com manuals search engine ...
Page 177: ...176 Downloaded from www Manualslib com manuals search engine ...
Page 178: ...177 Chapter 10 ELECTRICAL SYSTEM Downloaded from www Manualslib com manuals search engine ...
Page 181: ...180 1000X Downloaded from www Manualslib com manuals search engine ...
Page 195: ...194 1033X Downloaded from www Manualslib com manuals search engine ...
Page 196: ...195 1034X Downloaded from www Manualslib com manuals search engine ...
Page 197: ...196 1035X Downloaded from www Manualslib com manuals search engine ...
Page 198: ...197 1036X Downloaded from www Manualslib com manuals search engine ...
Page 199: ...198 1037X Downloaded from www Manualslib com manuals search engine ...
Page 200: ...199 1038X Downloaded from www Manualslib com manuals search engine ...
Page 201: ...200 1039X Downloaded from www Manualslib com manuals search engine ...
Page 202: ...201 1040X Downloaded from www Manualslib com manuals search engine ...
Page 203: ...202 1041X Downloaded from www Manualslib com manuals search engine ...
Page 204: ...203 1042X Downloaded from www Manualslib com manuals search engine ...
Page 205: ...204 1043X Downloaded from www Manualslib com manuals search engine ...
Page 206: ...205 1044X Downloaded from www Manualslib com manuals search engine ...
Page 207: ...206 Downloaded from www Manualslib com manuals search engine ...
Page 208: ...207 Chapter 11 MOWER Downloaded from www Manualslib com manuals search engine ...
Page 209: ...208 11 1 Sectional View FM60SD 1101X Downloaded from www Manualslib com manuals search engine ...