Removal-continued - TM-9-2815-224-34-P0123

TM9-2815-224-34&P

Crankshaft Maintenance Instructions (Cont)

(16) Push upper bearing shell (16) out from under crankshaft main bearing journal No. 2 (17) with

bearing shell remover.

NOTE

Turn crankshaft to aid in removing bearing shell from under bearing journal.

(1 7') Soldier A removes upper bearing shell (16) while Soldier B turns screw (13) to turn

crankshaft (2).

(18) Repeat steps (16) and (17) for crankshaft main bearing journals No. 3 (18) and No. 4 (19).

(19) Soldier A tells Soldier B to

turn screw (13) to turn

crankshaft (2), while

Soldier A reads runout of

main bearing journals (17,

18, and 19) with dial

indicator.

NOTE

If crankshaft has too much

runout, do steps (21) to (27) to

remove crankshaft, do

steps (28) to (39) to see if bad

bearing shell caused

crankshaft runout. If runout is

within limits only do steps (21)

to (27).

(20) Maximum allowable runout for journals (17 and 19) is 0.002 in. (0.05 mm). Maximum allowable

runout for journal (18) is 0.004 in. (0.10 mm).

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