FIGURE 3-93. Impeller Running Clearance Adjustment

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REPAIR

TM-55-1905-223-24-18-2 Landing Craft Utility (LCU) NSN 1905-01-154-1191 Basic Craft Part II Manual

ASSEMBLY

TM 55-1905-223-24-18-2

FIGURE 3-93. Impeller Running Clearance Adjustment.

NOTE

Pump lock and hexhead capscrew are replaced when impeller

running clearance adjustment is completed.

g. Install pump shaft (11), impeller adjustment screw (16), annular ball bearing

(21) and pump frame (13) as a unit on motor shaft (22) and motor housing

flange (20).

h. Install four hexhead capscrews (19).

NOTE

To assist installation of centrifugal pump impeller, pump shaft is

held-stationary by placing either a screwdriver or nail of suitable

size through hole provided on the close coupled pump shaft.

i. Install screwdriver or nail through hole in pump shaft (11).

j. Install plain seal (14).

k. Install preformed packing (4).

l. Install key (12).

m. Install impeller (10).

n. Install hex plain nut (9).

o. Install pump raceway (6).

p. Install two machine screws (7).

q. Install rubber bushing (5).

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