AIR CONDITIONING SYSTEM - MAINTENANCE INSTRUCTIONS

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Wear Limits.

TM-55-1905-219-14-8 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

Suction and Discharge Valve Seat Height

TM 55-1905-219-14-8

4-28. AIR CONDITIONING SYSTEM - MAINTENANCE INSTRUCTIONS

(Continued).

Factory

Maximum Wear

Maximum

Minimum

Before Repair

Part Name

in.

Oil Pump

*Axial Clearance

.0015

.0038

.0005

.0013

.0025

.0064

Drive Shaft Diam.

.4354

1.1059

.000

Drive Shaft Bushing Diam.

.4375

1.1112

.000

Suction Valve

Suction Valve Disc.

.005

.013

(Depth of Wear Below

Face)

Suction Valve Seat

.012

.030

(See Fig.

For Dim. "A")

Minimum Height of "A"

before replacing cylinder

sleeve (.010 in (.025 cm))

Discharge Valve

Discharge Valve Disc.

.005

.013

(Depth of Wear Below

Face)

Discharge Valve Seat

.012

.030

(See Fig.

For Dim. "B")

Minimum Height of "B"

before replacing valve

plate and discharge valve

inner seat (.010 in

(.025 cm))

*Return assemblies for factory exchange.

4-876