Detailed instructions for use are in the User's Guide.
[. . . ] · There are two different types of reinforced connecting pin available. If connecting pins other than reinforced connecting pins are used, or if a reinforced connecting pin or tool which is not suitable for the type of chain is used, sufficient connection force may not be obtained, which could cause the chain to break or fall off.
Chain 9-speed super narrow chain such as CN-7701 / CN-HG93 8- / 7- / 6-speed narrow chain such as CN-HG50 / CN-IG51 Reinforced connecting pin
Silver
6. 5mm
Cassette sprocket tooth combination
Model number CS-HG50-8I CS-HG40-8I MF-HG40-7 MF-HG37 Sprockets 8 8 7 7 Group name an ao az ax Tooth combination 11, 13, 15, 17, 20, 23, 26, 30T 11, 13, 15, 17, 20, 23, 26, 34T 14, 16, 18, 20, 22, 24, 34T 14, 16, 18, 20, 22, 24, 28T
Installation of the freewheel
To install
Tightening torque: 30 Nm {260 in. lbs. }
Freewheel removal tool
Connect the cable to the rear derailleur and, after taking up the initial slack in the cable, re-secure to the front derailleur as shown in the illustration.
Tightening torque: 5 - 7 Nm {44 - 60 in. [. . . ] · Keep these Technical Service Instructions in a safe place.
The 6 sprockets are secured by means of rivets.
Sprocket spacers (1. 0mm)
Lock ring
Note
· Always be sure to use the sprocket set bearing the same group marks. Group marks Never use in combination with a sprocket bearing a different group mark. · Because the high cable resistance of a frame with internal cable routing would impair the SIS function, this type of frame should not be used. · Use an outer casing which still has some length to spare even when the handlebars are turned all the way to both sides. Furthermore, check that the shifting lever does not touch the bicycle frame when the handlebars are turned all the way. · Grease the inner cable and the inside of the outer casing before use to ensure that they slide properly. · Operation of the levers related to gear shifting should be made only when the front chainwheel is turning. · For smooth operation, use the specified outer casing and the bottom bracket cable guide. · The SC-C050 speedmeter, SC-C051 odometer and SC-C052 clock and stopwatch are available as separate items. · Parts are not guaranteed against natural wear or deterioration resulting from normal use. · For maximum performance we highly recommend Shimano lubricants and maintenance products · For any questions regarding methods of installation, adjustment, maintenance or operation, please contact a professional bicycle dealer.
ag -18T
ag -15
T
· For installation of the sprockets, use the special tool (TL-HG16) to tighten the lock ring.
Tightening torque: 30 - 50 Nm {261 - 434 in. lbs. }
TL-HG16
ag
-13
T
· To replace the sprockets, use the special tool (TL-HG16) and TL-SR20 to remove the lock ring.
Disassembly
5 mm allen key
Installation of the rear derailleur
When installing, be careful that deformation is not caused by the B-tension adjustment screw coming into contact with the dropout tab.
5 mm Allen key
<RD-MR40>
Direct-mount type
Push in and tighten Tightening torque: 8 - 10 Nm {70 - 86 in. lbs. }
5 mm Allen Key
Technical Service Instructions
SI-R917A
Shoud be touching
Rear Drive System
Before use, read these instructions carefully, and follow them for correct use.
Dropout tab
B-tension adjustment screw
Bracket type
Tightening torque: 3 - 4 Nm {26 - 34 in. lbs. }
Bracket nut Frame
In order to realize the best performance, we recommend that the following combination be used.
Series REVOSHIFT Outer casing Rear derailleur Type Freehub Sprockets Cassette sprocket Chain Bottom bracket cable guide Altus SB-C055A-8R SIS RD-CT95 Smart Cage FH-CT91 8 CS-HG50-8I CS-HG40-8I Tourney 40 SB-C055A-7R SIS RD-MR40-7 MGS -- 7 MF-HG40-7
Bracket spindle tightening torque: 8 - 10 Nm {70 - 86 in. lbs. }
Bracket bolt Bracket
Chain length
Add 2 links (with the chain on both the largest sprocket and the largest chainring)
Largest sprocket Largest chainring
CN-HG50 / CN-UG50 SM-SP18 / SM-BT18
Chain
Checking the chain connection
Chain gauge TL-CN24
Specifications
Rear Derailleur
Model number Type Total capacity Largest sprocket Smallest sprocket Front chainwheel tooth difference Applicable front chainwheel (chainring tooth configuration) RD-CT95 Smart cage 43T 34T 11T 20T FC-CT92 (42-34-24T) RD-MR40-7 MGS 40T
For IG, chains, insert the chain gauge (TL-CN24) into the inner link which is next to the chain connecting pin to check that the inner link width is correct. Check that the connecting pin pro-trudes past the outer link by the same amount on both sides, and that the amount of protrusion is 0. 2 mm or more.
2. 38mm
Connecting pin
A, B Q 0. 2mm
A
B
1=2. 38mm TL-CN24 SHIMANO JAPAN CHAIN GAUGE 1=2. 38mm TL-CN24 SHIMANO JAPAN CHAIN GAUGE
34T 13T 20T FC-TY33A (48-38-28T)
Connecting pin
Outer link
Correct
U
. S
. [. . . ] Connecting and securing the inner cable
Replace the inner cable by carrying out steps to as shown in the illustrations.
For the best SIS performance, periodically lubricate all power-transmission parts.
Gear shifting operation
Pedaling becomes lighter
Pedaling becomes heavier
Installation of the switch
Remove the switch cap and install the switch as shown in the illustration.
Inserting the inner cable
Insert the inner cable into the outer casing from the end with the marking on it. Apply grease from the end with the marking in order to maintain cable operating efficiency.
Marking
SHIMANO JAPAN CHAIN GAUGE
Switch Switch cap
1=2. 38mm TL-CN24
Cutting the outer casing
Inner link
When cutting the outer casing, cut the opposite end to the end with the marking. After cutting the outer casing, make the end round so that the inside of the hole has a uniform diameter.
Outer end cap
This service instruction explains how to use and maintain the Shimano bicycle parts which have been used on your new bicycle. [. . . ]