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26-SI ALTERNATOR
1G/287 4/96
PAGE
ALTERNATOR ASSEMBLY
ASSEMBLY OF DE FRAME AND ROTOR
INSTALL OR CONNECT
1. Press inner race for rectifier end bearing (3) onto short
end of rotor shaft. Stop when race is 3.7 mm (.15 in.)
above end of shaft. (See Fig. 29)
2. Press inside collar (22) onto rotor shaft until collar is
against shoulder on rotor (4). (See Fig. 29) Place
retainer plate (21) onto collar (flanged side of retainer
will face away from rotor, toward bearing). Using open
tube that bears only on inner race of bearing, press new
DE bearing onto rotor shaft until bearing is against
collar.
3. Insert DE bearing (7) (on rotor shaft) into bearing well
in drive end frame (6). (See Fig. 26) Bearing (7) will
be a snug fit, but should slip in easily when properly
aligned. Lubricate outside of bearing very lightly with
ball and roller bearing lubricant (1948791) if necessary
to facilitate assembly.
4. Hold drive end assembly (6) with long end of rotor
shaft down so that bearing retainer plate (21) falls
against housing (1), then align retainer with screw
holes. (See Fig. 30) Start each of the four retainer
attaching screws (28), then tighten screws gradually in
sequence to pull retainer squarely against bearing.
TIGHTEN
Bearing retainer attaching screws (28) to 5 N.m (45 lb.
in.).
! IMPORTANT
To allow access for later installation of thru bolts, do
not assemble fan and pulley to drive end assembly at
this time.
ASSEMBLY OF RECTIFIER END HOUSING AND
COMPONENTS
INSTALL OR CONNECT
5. NOTICE: Do not drive hinge bushing into lug on
rectifier end housing with a hammer or other tool.
Impact shocks from striking the end housing can damage
diodes mounted inside. Use arbor press or vise to press
bushing into place.
Figure 29. Rotor Assembly
15
3. RECTIFIER
END
BEARING
4. ROTOR
ASSEMBLY
7. BEARING
21. RETAINER
22. COLLAR
7
21
22
4
3.7MM
3
Figure 30. Installing Rotor in Drive End Frame
4. ROTOR ASSEMBLY
6. DRIVER FRAME
7. BEARING
21. RETAINER
22. COLLAR
28. SCREWS (4)
4
21
22
7
6
28
26-5037
26-5035