Shimano RD-L525 Rear Derailleur Service Instructions

 SERVICE INSTRUCTION @ SHIMANO
(1) Mount the chain on the smallest chainwheel gear
and the largest freewheel gear. Turn B-tension
adjustment bolt so the guide pulley moves as SHIMANO REAR DERAILLEUR
near the low gear as possible. Model RD- L522-SGS (Super Long Cage)
@ If the chain rubs when pedaling in reverse, the guide RD- L522-SS (Short Cage)
pulley is too close to the low gear. Turn B-tension RD- L523-GS (Long Cage)
adjustment bolt clockwise until the rubbing and RD- L523-SGS (Super Long Cage)
noise disappear. RD- L523-SS (Short Cage)
= = RD- L525-GS (Long Cage)
RD- L525-SGS (Super Long Cage)
RD- L525-SS (Short Cage)
Largest gear
Smallest gear
- a
SIN B-tension
pi de adjustment bolt
Set as close Î \E
as possible. J
oO a y a O.
EE
FAT
Guide pulley RD-L522-SGS RD-L523-SS
|
Specifications are subject to change for improvement without notice.
-GS -SGS -SS
бр S I=] | Im A n O (iront difieren ce plus 34T 40T 28T
SHIMANO SALES CORPORATION rear difference)
9530 Cozycroft Avenue, Chatswarth, California 91311 Tel, (818) 882-4411 Largest rear gear SAT ЗАТ 28T
SHIMANO AMERICAN CORPORATION
205 Jefferson Road, Parsippany, New Jersey 07054 US.A Tel (201) 884-2300 Front gear difference 14T 20T 13T
SHIMANO (EUROPA) OmbH. ‚ I
Im Huelsenfeld 73 4010 Hılden, West Germany Tel 02103 5005-16 Front gear type Single — Triple Double
SHIMAND (SINGAPORE) PTE. LTD. _——
No 20, Benoi Sector, Jurong Town, Singapore 2262 Tel 2654777 Note: The above capacity IS the value when the B
SHIMAND INDUSTRIAL CO. LTD. tension-adjustment bolt is completely tightened.
3-77 Ormatsucho, Sakai, Osaka, Japan Tel (0722) 233243
Note: The capacity is not available according to the
type of Fork End or dimensions of Frame.
OOct. 1985 by Shimano. P-4 AZ SZK Printed in Japan
| ASSEMBLY and ADJUSTMENT _
Assembly to Frame
Secure the bracket axle to the fork end with a 6mm
hexagon wrench (TL-WRG36).
Note: When installing, be careful that the B-tension
adjustment bolt is not deformed by coming into
contact with the fork end tab.
‘Bracket axle tightening torque: )
._ 80—100kgfcm (70—85 in. Ibs)
B-tension
adjustment
Stroke adjustment
* Adjustment at the high (top) gear
Turn the high adjustment bolt (H) so that the guide
pulley center is aligned with the outside of the high
gear as seen from the rear. Turn adjustment bolt (H)
clockwise to move the guide pulley towards the low
gear.
* Adjustment at the low gear
Shift the guide pulley to the low gear. Turn the low
adjustment bolt (L) so that the center of the guide
pulley is aligned with the center of the low gear. Turn
‘the low adjustment bolt (L) clockwise to shift the
guide pulley towards the high gear.
fia High gear, outside
Chain Assembly
e In the case of a freewheel with 28 teeth or less:
Put the chain on the smallest sprocket of the
freewheel and on the largest sprocket of the front
chainwheel. Adjust the length of the chain by
checking that the center line connecting the rear
derailleur guide pulley and the tension pulley is at
right angles to the ground.
Freewheel Front Chainwheel
K» Guide Pulley
Tension Pulley
À Right angle to the ground
* In the case of a freewheel with 29 teeth or more, or
the front chainwheel of triple gear:
Put the chain on the largest front chainwheel and the
largest rear sprocket of the freewheel. Stretch the
chain to the limit and add 2 chain links.
Freewheel Front Chainwheel
Add 2 Links
Cable adjustment
Pass the inner cable through the arm channel as
shown in the figure below. Pull any slack out of the
cable and tighten the cable lock bolt.
Cable lock bolt tightening torque:
40—60kgfcm (35—53in.Ibs.)