New Holland CX720 Repair Manual page 1712

7. Check crankshaft end play with a dial indicator
gauge, pry crankshaft towards front of engine and
set dial indicator to zero. Pry crankshaft towards
rear of engine and note reading on dial if end play
exceeds 0.10-0.20 mm (0.004-0.008 in ) fit a new
thrust bearing.
8. If the end play is less than specification check thrust
bearing for burrs, scratches, or dirt, and re-align
thrust bearing as in operation 7.
Install rear crankshaft oil seal as previously de-
scribed in Rear cover - Remove (B.10.A.76 -
F.10.A.10).
NOTE: Do not pre-install seal into retainer. To ensure seal
concentricity, it must be assembled with rear plate and in-
stallation tool when fitted to crankshaft.
9. Install the camshaft idler gear ensuring the timing
marks are correctly alligned.
POWER PRODUCTION - ENGINE
2 4/7/2006
B.10.A / 166
7
BSB0079A
8
TA6010070
9
P396-E-36_777