Removing and Installing Locating Bearing -MAN B&W NA 57 TC

Tools Required

1. Protection Sleeve
2. Bracket
3. Hexagonal nut
4. Threated rod
5. Open end wrench

Starting Position

Either silencer or aint-intake casing and compressor casing are removed or only the air-intake socket, spacer ring and insert, impeller, cover and locating ring are taken off.

Threaded rod screwed in locating bearing

Locating bearing pulling out

SEQUENCE OF OPERATION
Removing

1. Screw protection sleeve onto rotor shaft to protect the shaft and the bearing bore.
2. Screw 2 threaded rods into locating bearing.
3. Fasten bracket with hexagonal nuts to bearing casing and screw two hexagonal nuts onto threaded rods.
4. Extract locating bearing from casing by tightened the two nuts evenly.

Note:The two nuts should be tightened equally at the same time.

Installing

1. Screw protection sleeve onto turbine shaft, unless it has been left in place.
2. Cautiously insert locating bearing in axial direction into bearing casing.
3. Screw off protection sleeve.

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