Toro Workman 3000 Series Service Manual page 143

Crankshaft Inspection
1. Inspect crankshaft journal and pin areas for streaking
or seizure. Measure outside diameter of journal and in­
side diameter of main bearing. If clearance exceeds the
limit replace main bearing. If installing new bearing does
not reduce clearance to within service limit, crankshaft
must be reground and undersize bearings installed.
Standard value 0.021 – 0.045 mm (.0008 – .0018 in.)
Limit 0.1 mm (.004 in.)
When grinding crankshaft to undersize, note "R" dimen ­
sions of fillets on journal and pin areas.
Workman 3000/4000 Series
1.5 mm (.059 in.) R
Page 3 – 105
Figure 227
Figure 228
1.5 mm (.059 in.) R
1.5 mm (.059 in.) R
Figure 229
Liquid Cooled Gas Engine