TM 9-2815-210-34-2-2
FRAME 75
1.
2.
3.
4.
Take out
cap (1).
NOTE
Main bearing caps (1), main bearing halves (2), and
main bearing saddles (3) are called by numbers one to
seven counting from front to rear of crankcase (4).
two bolts and washers (5) and take out number one main bearing
Take off two main bearing halves (2).
Check that 75 percent of surface (6) of number one main bearing cap (1) is
coated with Prussian blue.
If less than 75 percent of surface of number one
main bearing cap is coated with prussian blue, main bearing halves (2) are
worn out.
Check that 75 percent of surface of number one main bearing saddle (3) is
coated with Prussian blue.
If less than 75 percent of surface of number one
main bearing cap is coated with Prussian blue, main bearing halves (2) are
worn out.
Do steps 1, 2, and 3 again for all other main bearing caps (1).
IF ANY MAIN BEARING HALVES ARE WORN OUT, GO TO FRAME 76.
IF NO MAIN BEARING HALVES ARE WORN OUT, END OF TASK
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