TM-9-2815-225-34-P

ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2005

TM-9-2815-225-34-P - Page 188 of 736

TM 9-2815-225-34&P

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0018 00-2

PISTONS, CONNECTING RODS, AND BEARINGS (Contd)

DISASSEMBLY

1.

Remove first compression ring (2), second compression ring (1), intermediate compression ring

(12), and oil control ring (11) from piston (10). Discard piston rings (2), (1), (12), and (11).

NOTE

Always discard connecting rod bearings as a set.

2.

Remove connecting rod bearings (8) from connecting rod (5) and connecting rod cap (7) if not

previously removed. Discard connecting rod bearings (8).

3.

Remove two dowel pins (6) from connecting rod cap (7).

4.

Remove two retaining rings (4) from piston (10).

WARNING

Wear rubber gloves when removing piston pin to prevent

burns from boiling hot water or hot piston. Failure to comply

may result in injury to personnel.

CAUTION

Do not use hammer or any other tool to remove piston pin.

Remove piston pin by hand only. Failure to comply may

result in damage to piston.

5.

Heat piston (10), piston pin (3), and connecting rod (5) to 210° F (98.9° C) for 10 minutes in

boiling water or oven.

6.

Remove piston pin (3) from piston (10) and connecting rod (5).

7.

Remove piston (10) from connecting rod (5).

8.

Using press and connecting rod bushing driver, remove bushing (9) from connecting rod (5).

Discard bushing (9).

9.

Repeat steps 1 through 8 for all remaining piston (10), connecting rod (5), and bearing (8)

assemblies.