Place ball bearing

TM 9-2920-257-30&P

CAUTION

E n s u r e that ball bearing is pressed all the way down onto rotor

F a i l u r e to do so may result in damage to the anti-drive

shaft.

Front face of ball bearing

end housing in later assembly steps.

m u s t be at least 5/32 inch (3.97 mm) below front face of drive

e n d housing.

(f) Place ball bearing (23) in position on bearing bore. Place

b a l l b e a r i n g t o o l ( f i g . F - 1 ) on top of bearing so that larger diameter

Press bearing in until it bottoms out

end is in contact with bearing.

against bearing stop on shaft of rotor (14).

NOTE

A s s e m b l y spacer tool installed in step (b) above will be removed

in step (g) below.

(g) Remove entire assembly from arbor press and remove anti-drive

e n d housing (9) and assembly spacer tool (fig. F-1) used to position

Install anti-drive end housing on

rotor (14) during rotor assembly.

shaft of rotor, making sure that stator laminations fit flush in pilot

b o r e of anti-drive end housing and stator locating pin meshes with

matching hole in anti-drive end housing.

(h) Place entire assembly in arbor press with drive end housing

assembly (21) facing up, supporting assembly on hub area of anti-drive

end housing (9) around shaft of rotor (14).

( i ) P l a c e b a l l b e a r i n g t o o l ( f i g . F - 1 ) on top of bearing (23) so

P r e s s bearing in

that larger diameter end is in contact with bearing.

until it bottoms out in bearing bore of drive end housing assembly (21).

(j) Fill cavity around area of shaft of rotor (14) and coat

surface of bearing (23) with grease (item 4, App B).

3-21