ASSEMBLY - TM-55-1905-219-14-50641

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REASSEMBLY (Cont)

TM-55-1905-219-14-5 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

ASSEMBLY (Cont)

TM 55-1905-219-14-5

3-96.2. CONNECTING ROD - MAINTENANCE INSTRUCTIONS (Cont).

LOCATION

ITEM

ACTION

REMARKS

REASSEMBLY (Cont)

5. Align the upper end of the connecting rod with the hole in the reaming fixture.

6. Install the rear guide bushing J1686-5 on reamer J1686-20, then slide the reamer

and bushing into the fixture.

7. Turn the reamer in a clockwise direction only, when reaming or withdrawing the

reamer. For best results, use only moderate pressure on the reamer.

8. Remove the reamer and the connecting rod from the fixture, blow out the chips

and measure the inside diameter of the bushings. The inside diameter of the

bushings must be 1.5015 to 1.5020 inch (3.8138 to 3.8151 cm). This will provide

a piston pin-to-bushing clearance of .0015 to .0024 inch (0.0038 to 0.0061 cm)

with a new piston pin. A new piston pin has a diameter of 1.4996 to 1.5000 inch

(3.8090 to 3.8100 cm).

NOTE

Piston bushings are installed in piston (refer to paragraph 3-96.1).

ASSEMBLY

14. Connec-

a. Piston

Lubricate.

Use clean en-

ting

pin (10),

gine oil.

rod to

piston

Refer to para-

piston

bushings

(12),

and con-

necting

rod bush-

ings (9)

3-1676