Siemens BTC-BR Manual Página 125

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Technical Product Manual
Fault analysis and repairs 1318
3 Removing and fitting housing
Section 3: Removing and fitting housing • Edition 12/2005
TU00-1318-0200302 © Siemens VDO Trading GmbH Section 3 3–33
Key to Abb. 2-24
*discontinued
3.8.5.1 Removing gears
Procedure
Remove the bracket (12).
Remove the worm (5).
Remove the distance cam (6).
Remove the spur gear (18) from the frame plate in the direction of arrow (d)
and at the same time remove the stop spring (17) in the direction of arrow (e).
Remove the stop (19).
Remove the locking sleeve (20).
Remove parts (21), (22), (23), and (24).
Remove the coupling sleeve (13) and the free wheel (10) together.
Remove the retaining washer (2).
(Available up to about 04.90)
Remove the eccentric (3).
Remove the gear wheel (1).
Remove the retaining washer (7).
(Available up to about 04.90)
Remove gear wheels (8) and (9).
Unhook the tension spring (26) from the stud (16).
Remove the lever (27).
1 Gear 12.1 Front 21 Spring
2 Retaining washer* 12.2 Hold-down device 22 Washer
3 Eccentric 13 Coupling sleeve 23 Connecting link
4 Frame bearing bra-
cket
13.1 Drilled hole 24 Eccentric wheel
5 Worm 13.2 Stud 25 Complete parts
6 Distance cam 14 Gear 26 Tension spring
6.1 Distance cam with
collar
15 Frame lock 27 Lever
7 Retaining washer* 16 Frame stud 28 Lever position
8 Gear 17 Stop spring 29 Grommet
9 Gear 18 Spur gear 30 Collar
10 Free wheel 18.1 Front 31 Bottom of grommet
11 Frame aperture 19 Stop 32 Top of grommet
12 Bracket 20 Locking sleeve
Remark
With some units the spur gear (18) is welded to the front (18.1) with the stop
spring (17). If necessary release the stop spring (17) and spur gear (18) from
each other
and replace.
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