TM-9-2320-272-24-4

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4

JUNE 1998

  TM-9-2320-272-24-4 - Page 191 of 836

TM 9-2320-272-24-4
5-28. CYLINDER LINERS AND BLOCK MAINTENANCE (Contd)
4.
Check cylinder liner (1) for wear:
a. Measure inside diameter of cylinder liner (1) in two places offset 90° at top of piston travel.
b. Record inside diameter measurements A and B.
c. Measure inside diameter of cylinder liner (1) in two places offset 90° at bottom of piston travel.
d. Record inside diameter measurements C and D.
e. Compare inside diameter measurements A with B and C with D. Tag cylinder liner (1) for
replacement if difference exceeds 0.0016 in. (0.041 mm).
f. Compare inside diameter measurements A with D and B with C. Tag cylinder liner (1) for
replacement if difference exceeds 0.0016 in. (0.041 mm).
5-185


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