Assembly.

TM 5-6115-465-34

TO 35C2-3-446-2

NAVFAC P-8-625-34

TM 06858B/06859D-34

(11) Insert a wire of sufficient stiffness in

(18) Inspect fan for cracks, corrosion, bent

the access hole provided (point A, figure 3-4), to

blades and other damage.

hold the brushes (20) depressed into the brush-

holder (19).

(19) Inspect bearings for pitting, excessive

wear, and other damage.

(12) Install the rotor (50) with assembled

front head (49) into rear head (11), assembled to-

(20) Inspect head assemblies (11 and 49) for

gether with rectifier and stator assembly (40).

cracks, breaks, and corrosion.

(13) Install thru bolts (10).

(21) Inspect all threads for crossing, stripp-

ing, and peening.

(14) Remove wire, inserted in step 3-5d. (11).

d. Assembly.

NOTE

(1) Install positive diode rectifier assembly

(42, figure 3-4) and negative diode rectifier assem-

Perform steps in paragraph 3-5e(l) before

bly (41 ) onto stator assembly (43) and solder diode

proceeding with assembly.

leads.

(2) Using a driver which exerts pressure on

(15) Install capacitor and clamp assembly (27),

the inter race only, install front bearing (52 ) into

screw (25), washers (26), lockwasher (24) and nut

front head (49) and secure with snap ring (51).

(23). Install nuts (22 and 21).

(3) Install cover (54) and support rear bear-

(16) Install capacitor and clamp assembly (28)

ing area of rotor assembly (50) on a suitable press

and brush lead (15).

and fit assembled front head and bearing over rotor

shaft. Using a driver which exerts pressure on the

(17) Install ventilated cover band (9) with

inner race sly, press front head down until front

screws (8).

bearing contacts cover (54) on rotor shaft.

(4) Support front of rotor assembly shaft on

(18) Install all electrical leads that were

tagged and disconnected during disassembly in step

a suitable press. Using a driver which contacts the

3-5b. (2). (See figure 3-4. )

inner race only, press rear bearing (53) onto rotor

shaft until it contacts shoulder on shaft. Remove

(19) Install washer (5), fuse holder (3), and

rotor assembly from press.

nut (4). Resolder leads to fuse holder.

(5) Install spacer (48), woodruff key (47), fan

(20) Install fuse (7) and cap (6).

(46), pulley (45), and nut (44). Torque nut to 35 to 50

ft-lbs

NOTE

(6) Fit front part of insulating bushings (36,

37, 38, and 39) over rectifier studs.

Install test leads as indicated in e.(2)

(7) Position stator and rectifier assembly (40)

below.

into rear head assembly (11).

NOTE

(8) Install rear part of insulating bushings (36,

37, 38 and 39) and washers (31, 32, 33, and 34).

Complete testing of alternator sub-para-

graph e. (2) below prior to completing

assembly.

(9) Install brushholder (19), insulating plate

(18), lockwashers (17) and screws (16).

Testing.

(1) Manufacture test leads as follows:

NOTE

Insure that the contour of the brushes

(a) From No. 8 or No. 10 insulated wire,

correspond to the contour of the com -

cut three lengths, one 10 inches long and two 5 inches

long.

mutator when installing brushes in the

brushholder.

(10) Install brush and spring assemblies (20)

(b) Strip both ends of all three leads and

in brushholder (19).

tin with solder.

3-11