Replace Connecting Rod and Piston Group.

TM 55-1905-223-24-4

3-28. Replace Connecting Rod and Piston Group.

This task covers:

a. Removal,

b. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic'

rail and marine diesel engines,

Power disconnected and tagged "Out of

Service."

Torque wrench kit P/N 3377216

Oil, coolant and fuel drained.

Lifting sling P/N 3375958

Radiator assembly removed (para. 3-14).

Lifting fixture P/N 3822'512

Generator assembly removed (para. 3-15).

Piston Ring Compressor P/N ST-755

Cylinder head removed (para. 2-40).

Ridge Reamer P/N ST-1255

Oil pan removed (para. 3-25).

Combination wrench set, metric

10mm thru 24mm, 5120-046-4979

Material/Parts

Warning tags, Item 21, Appendix C

Piston set P/N 3802100

Ring set P/N 3802050

Cleaning solvent, Item 20, Appendix C

Lubricating oil, Item 14, Appendix C

Lubriplate 105, Item 12, Appendix C

Coolant, Item 4, Appendix C

REMOVAL

a. Move engine to work bench using a lifting fixture and sling.

CAUTION

Be sure the ridge reamer does not gouge into the cylinder bore or remove

more metal than needed.

b. Rotate the engine to a vertical position. Cut the ridge from the top of the cylinders.

FIGURE 3-77. Remove Ridge from Top of Cylinder.

Change 1

3-79