Comp rear hub, Disassembly, Assembly – Bontrager 231793 User Manual

Page 21

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22

2003 Bontrager Service Manual

Recommended tools

Long bearing press
Short bearing press
17mm cone wrench
Multi-purpose grease
Bench vise
Axle vise
Hammer, soft faced
Thin-bladed slot screwdriver

DISASSEMBLY

Hub parts and names are referenced on next page.

1. Place the axle vise in the

bench vise and clamp the left-
hand end of the axle.

2. Remove the cassette.
3. Loosen the right end nut

with the 17mm cone wrench and
remove the end nut (Fig. 1G).

4. Pull off the freehub body

with your fingers.

The spacer (Fig. 2G) may be stuck to the inside of the free-
hub body with grease.

5. Remove the spacer (Fig. 2G).
6. With the wheel removed

from the vise, tap the right end
of the axle with the hammer
until loose. Pull the axle from
the left side of the hub shell (Fig.
3G).

7. Place the right end of the

axle into the axle vise.

8. Loosen the left end nut

with the 17mm cone wrench,
and remove it from the axle. Also
remove the bearing.

9. Remove the retainer

spring (Fig. 4G) and pawls from
the hub with the screwdriver.

10. Pull the roller bearing

retainer from the hub (Fig. 5G).

11. From the left side of the

wheel, place the axle through
the hub and the bearing. Tap
the axle with the hammer to
drive the right hub bearing out.
Remove the bearing from the
axle.

Clean and inspect the parts

Clean all components and

inspect them thoroughly. If any
cracks or other damage are vis-
ible, the parts must be replaced.

ASSEMBLY

1. Clamp the long bearing press into the bench vise.

Push the axle, long end first, through the hole in the
press. The short, 33mm end of the axle should be on top
(Fig. 6G).

2. Place the wheel over the

axle with the drive side facing up.

3. Place a new bearing over

the axle, black side out. Tap the
short bearing press with the ham-
mer to begin pressing the bearing
into the hub (Fig. 7G).

4. Leave the short bearing

press in place, and lift the wheel
from the long bearing press (in
the vise). Remove the axle from
the hub and replace the wheel
over the long bearing press.

5. Again tap the short bear-

ing press with the hammer to
press the bearing into the hub.

This is an important step, which ensures the bearing is cor-
rectly pressed in.

6. Turn the wheel over and

place it drive-side down on the
long bearing press. Push the
short 33mm end of the axle
through the hub and bearing.

7. Slide the second hub bear-

ing over the axle, black side on
top.

8. Tap the short bearing

press with the hammer to press
the second bearing into the hub.

9. Turn the wheel over.

Lightly grease the bearing shell.

10. Slide the roller bearing

retainer over the hub bearing
and into the housing (Fig. 8G).
Be careful not to dislodge any
roller bearings.

Installing the pawl spring and

pawls

1. Place the pawl spring over

the axle and install the spring
into the retainer body with the
elbow pointing up (Fig. 9G).

2. Push both pawls beneath

the spring with a screwdriver
(Fig. 10G). Make sure they are
placed correctly (Fig. 11G).

3. Lightly grease the roller

bearing retainer, pawls, and hub
bearing.

Install the freehub body

1. Push the spacer (Fig. 2G)

over the axle.

2. Remove the freehub body seal

(Fig. 12G). Clean the seal. If it is faulty or
damaged, replace it.

3. Clean the freehub body teeth (a

toothbrush works well).

4. Lightly grease the seal and freehub

Comp rear hub

Bontrager Race Modified rear wheel, 2003 Race Lite ATB, 2002/2003 Race Lite Road rear wheel

Fig. 1G

Fig. 3G

Fig. 2G

Spacer

Fig. 6G

Fig. 4G

Retainer
spring

Pawl

Fig. 5G

Fig. 7G

Fig. 8G

Fig. 10G

Fig. 9G

Pawl spring
elbow

Fig. 11G

Pawl

Spring position

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