Shimano SL-3S20 Shifting Lever Service Instructions

SERVICE INSTRUCTION
3-speed hub SG-3S30-c
Trigger lever S L-3S20
For proper and safe performance, read and follow these
instructions carefully
69 SHIMANO
E Operation Notes
e Trigger lever operation is easier when the pedal
force is reduced.
e Never put your foot on the bell crank part.
E How to Use the Trigger Lever
Lever shifting
position Riding conditions
When starting / gravel roads or
bumpy roads / Uphill slopes/when
carrying a heavy load /
When facing the wind
When riding on a level surface
[2]
[3] To ride fast
Bell Crank Installation
Check the length of the exposed part of the hub axle and of
the push rod (at the installation side). Hub nut
Hub axle |
| Note: Measure the exposed part
of the push rod after turning the
pedals two or three times in the
| forward direction. The exposed
part of the push rod may become
| shorter when the pedals are
| turned in the reverse direction. |
Approx. 12mm (15/32")
( Set Bolt Type )
Set the adjusting bolt toward the cable adjusting nut direction,
and insert the bell crank to the limit. Confirm that the hub axle
reaches the end of the bell crank, by sighting through the
inspection hole. Then tighten it by screwing the bell crank
fixing bolt.
Push rod
12mm (15/32")
or more
Cable adjusting nut
ns bolt
> NLG
N a Leaf
Then, tig hen Contact surface
Tightening torque: 30—50kgfem
(26—43in.lbs.)
Inspection hole
\
о
Contacts
here.
Bell LC
fixing bolt
9mm (11/32") wrench
(Caliper Type )
After threading the bell crank on until contact, if the bell crank’s
adjusting bolt is not aligned with the direction of the cable
adjusting nut, loosen the bell crank in the counterclockwise
direction so as to coincide with the direction of the cable, and
then secure the bell crank by tightening the lock nut.
Align with the cable
adjusting nut direction.
a
Connection and adjustment of the cable
Set the lever to the “2” position, and then thread the
cable adjusting nut onto the adjusting bolt of the bell
crank. Adjust so that the bell crank's (N) mark comes
to the center of the hole. After making the adjustment,
secure the cable adjusting nut by tightening the lock
nut.
a 4
“2” position
Adjust so that the
(N) mark is at the
hole center.
e Please note: Specifications are subjecl to change for improvement without nolice
SHIMANO AMERICAN CORPORATION
One Shimano Drive, Irvine, California U.S.A. 82718 Tel. (714) 951-5003
SHIMANO (EUROPA) GmbH.
Kleinhúlsen 1-3 4010 Hilden, West Germany Tel. 02103-5005-0
SHIMANO (SINGAPORE) PTE. LTD.
No. 20, Benoi Sector, Jurong Town, Singapore 2262 Tel. 2654777
SHIMANO INDUSTRIAL CO.,LTD.
3-77 Oimatsucho, Sakai, Osaka, Japan Tel. (0722) 23-3243
© Sep. 1988 by Shimano 5-13 PIT, SHS. Printed in Japan