Volvo DH10A 245, Руководство по обслуживанию

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8
Crank Mechanism
Crankshaft
Length ....................................... 1154 mm
Crankshaft, end float, max. ....... 0.4 mm
Main bearings, radial
clearance, max. .........................
0.14 mm
The crankshaft is nitrocarburised or induction-hard-
ened. NOTE: A nitrocaburised crankshaft may be
ground max. to 2nd undersize. With deeper grinding
the crankshaft must be re-nitrocarburised.
Main bearing journals
Diameter (Ø) for machining
standard ............................. 99.978–100.000 mm
undersize 0.25 mm ........... 99.724–99.746 mm
0.50 mm ........... 99.470–99.494 mm
0.75 mm ........... 99.216–99.238 mm
1.00 mm ........... 98.962–98.984 mm
1.25 mm ........... 98.708–98.730 mm
Main bearing journals
out-of-round (new) ............ max. 0.006 mm
wear out-of-round .............. max. 0.08 mm
taper ................................... max. 0.05 mm
Width axial journal pin (A)
standard ............................ 45.975–46.025 mm
Oversizes
0.2 mm
(axial bearing 0.1 mm) .. 46.175–46.225 mm
0.4 mm
(axial bearing 0.2 mm) .. 46.375–46.425 mm
0.6 mm
(axial bearing 0.3 mm) .. 46.575–46.625 mm
Fillet radius (R) ...................... 3.75–4.00 mm
Thrust washers (axial bearing)
Thickness (B), standard ............... 2.312–2.362 mm
oversize 0.1 mm ...... 2.412–2.462 mm
0.2 mm ...... 2.512–2.562 mm
0.3 mm ...... 2.612–2.662 mm
0.4 mm ...... 2.712–2.762 mm
Main bearing shells
Diameter, bearing shell seat
in block ............................ 104.978–105.003 mm
Thickness (D),
standard ........................... 2.447 mm
undersize 0.25 mm .......... 2.574 mm
0.50 mm .......... 2.701 mm
0.75 mm .......... 2.828 mm
1.00 mm .......... 2.955 mm
1.25 mm .......... 3.082 mm