|
|
|
-------------------------------------------------------------------------------------------------------------------------------------------------------------
520
SUPPLEMENT
5A. Use an industrial heat gun and apply heat uni-
42
formly to the bearing inner race for approximately
30 seconds.
5B. If a heat gun is not available, apply penetrating
oil to the inner race and crankshaft and allow the oil
to penetrate for 30 minutes.
6. Make sure the bearing puller is square to the
crankshaft so the bearing inner race is not out of
alignment with the crankshaft shoulder.
7. Slowly tighten the center screw (E, Figure 41)
and withdraw the bearing inner race (F) from the
crankshaft shoulder.
8. Remove the bearing puller, splitter and bearing
inner race from the crankshaft.
9. Remove the trust washer from the crankshaft.
Discard the thrust washer, it cannot be re-used.
10. Clean the sprocket shaft with contact cleaner.
Check the sprocket shaft for cracks or other dam-
age. If it is damaged, refer service to a
Harley-Davidson dealership.
Installation
The sprocket shaft bearing cone installer
(HD-997225-55B) is required to install the sprocket
shaft bearing inner race.
4B. If a heat gun is not available, apply penetrating
1. Support the crankshaft in a support fixture
oil to the inner surface of the bearing race and to the
(HD-44358), or an equivalent, with the bearing side
crankshaft shoulder. Install the new inner race (D,
facing up (A, Figure 42).
Figure 42) onto the crankshaft.
2. Thread the pilot shaft (B, Figure 42) onto the
5. Apply graphite lubricant to the threads of the pi-
crankshaft until it contacts the crankshaft
lot shaft and flat washer
3. Slide the new thrust washer (C, Figure 42) over
6. Slide the sleeve (E, Figure 42) onto the crank-
the sprocket shaft.
shaft until it contacts the bearing inner race.
7. Slide the new bearing (F, Figure 42) and flat
WARNING
In Step 4, never use the heat gun in
washer (G) over the pilot shaft until it contacts the
conjunction with the penetrating oil.
top of the sleeve.
The heat from the gun may ignite the
8. Thread the handle (H, Figure 42) onto the pilot
oil resulting in a fire.
shaft (B).
9. Slowly tighten the handle clockwise until the
4A. Place the new bearing race on the workbench.
bearing inner race bottoms on the crankshaft shoul-
Use heat gun and uniformly heat the bearing race
der.
for approximately 60 seconds. Wear heavy duty
10. Unscrew and remove all parts of the special
gloves and install the new inner race (D, Figure 42)
tool.
onto the crankshaft
|