OVERHAUL - (Cont) - TM-55-1905-219-14-110527

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OVERHAUL - (Cont)

TM-55-1905-219-14-11 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

OVERHAUL - (Cont)

TM 55-1905-219-14-11

5-140. COMPRESSOR - HVAC - MAINTENANCE INSTRUCTIONS

(Continued).

LOCATION

ITEM

ACTION

REMARKS

OVERHAUL (Cont)

FACTORY

MAXIMUM WEAR

PART NAME

Maximum

Minimum

Before Repair

inches

Connecting Rod

1.6255

4.1287

.002

.005

Bearing dia..

(after assembly)

.06225

.15812

.001

.003

Bearing thickness

1.6233

4.1232

.003

.008

Crankpin dia.

Cylinders

.003

.008

2.501

6.352

Bore

2.4980

6.3449

.003

.008

Piston (dia.)

.7498

1.9045

.001

.003

Wrist Pin (dia.)

.001

.003

.7507

1.9068

Wrist Pin Bushing

.030

.076

.017

.043

.007

.018

Piston Ring End Gap

(comp. and oil)

.001

.003

.008

.0025

.0064

Piston Ring Side

Clearance (comp.

and oil)

NOTE

If bearing inserts are damaged, but crankshaft is not worn, it is only necessary to replace

inserts. Do not file bearing caps. Place inserts in the connecting rod and cap so that

toeing knobs on inserts fit into notches on rod and cap. Lubricate insert bearings and

crankpin freely before installing caps.

l. Piston

Pushfit into place.

Pressure for a

pins

dry pin is 10 to

(55)

25 lb (44.5 to

111.2 N).

5-1434