40
SRAM T3
MAINTENANCE
Technical Manual 2006
3
1
REMOVE WHEEL
• Apply fingertip pressure onto the metal
key of locating sleeve to release it from
the pull rod.
• Remove deflection pulley.
• Screw off both axle nuts and remove
retaining washers.
• Remove wheel.
DISMANTLING HUB
see Fig. 1
• Unscrew indicator chain (23), remove
circlip (21), sprocket (20), dust cap (19)
and clamp axle (10) on the driver side.
• Unlock hexagonal nuts (1) and unscrew.
• Remove brake arm (2), ball retainer (3)
and brake sleeve (4) and remove hub
shell (5).
• Remove safety washer (7), thrust washer
(8) and then the planet carrier (9)
complete with brake cone (6). Unscrew
the brake cone from the planet carrier.
• Clamp other axle end.
• Loosen the lock nut (22) and fixed cone
(18) and remove.
• Remove driver (17), compression springs
(14 and 13) and ball retainer (16).
• Push the sliding key (12) through the
large bore in the coupling wheel of the
ring gear (11) – the bore and thrust block
must be aligned.
• Remove the gear ring (11) from the axle.
Advice:
The dismantly and reassembly of the hubs
with drum brake and without brake
should be carried out in the same way
(Fig. 2 / 3).
Differences
• There is no brake sleeve (4) and brake
cone (6).
• The planet carriers (a) have a cylindrical
shaft instead of a flat thread, which hou-
ses a pawl carrier (b) held by a safety
washer instead of the brake cone.
• Further differences: instead of a lever
cone (2) for type MH 3115, an adjusting
cone (d) with dust cap (e) for type
MH 3105 and a small adjusting cone (D)
and corresponding ball retainer (f) for
type MH 3125 are fitted.
2
x
1
e
d
3
c
b
a
b
f
D
c
x
a
1
6
9
7
8
10
11
13
14
12
16
22
21
20
19
18
17
23
5
4
3
2
Coaster brake / MH 3115
Without brake / MH 3105
Drum brake / MH 3125
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