How it Works
Shimano
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FC-M4050-B2
Dealer's Manual
28 pgs745.03 Kb0
Table of contents
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Shimano FC-M4000, FC-M4050, FC-M4050-B2, FC-M4060, FC-M3000 Dealer's Manual

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Page 1
(English)
DM-MDFC001-06
Dealer's Manual
ROAD MTB Trekking
City Touring/ Comfort Bike
Crankset
SHIMANO ALIVIO Bottom bracket
ACERA
ALTUS
SM-BB52 BB-UN100 BB-UN101 BB-UN300 BB-UN26 BB-ES300 BB-MT500-PA BB-MT500 BB-MT501
URBAN SPORT E-BIKE
Non-Series
Page 2
CONTENTS
IMPORTANT NOTICE ..............................................................................................3
TO ENSURE SAFETY ............................................................................................... 4
LIST OF TOOLS TO BE USED .................................................................................. 8
INSTALLATION .....................................................................................................10
List of tool combinations ...........................................................................................................................10
2 piece crankset .......................................................................................................................................... 11
OCTALINK type ........................................................................................................................................... 16
SQUARE type ..............................................................................................................................................17
PRESS-FIT BB ........................................................................................................ 20
Bottom bracket cups ..................................................................................................................................20
Assembly example ...................................................................................................................................... 20
Installation .................................................................................................................................................. 21
Removal ......................................................................................................................................................22
MAINTENANCE .................................................................................................... 24
Replacing chainrings ..................................................................................................................................24
Installation of the chain guard .................................................................................................................. 26
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Page 3

IMPORTANT NOTICE

The following instructions must be observed at all times in order to prevent personal injury and physical damage to equipment and surroundings. The instructions are classified according to the degree of danger or damage which may occur if the product is used incorrectly.
DANGER
Failure to follow the instructions will result in death or serious injury.
WARNING
Failure to follow the instructions could result in death or serious injury.
CAUTION
Failure to follow the instructions could cause personal injury or physical damage to equipment and surroundings.
IMPORTANT NOTICE
•
This dealer’s manual is intended primarily for use by professional bicycle mechanics.
Users who are not professionally trained for bicycle assembly should not attempt to install the components themselves using the dealer’s manuals. If any part of the information on the manual is unclear to you, do not proceed with the installation. Instead, contact your place of purchase or a local bicycle dealer for their assistance.
•
Make sure to read all instruction manuals included with the product.
•
Do not disassemble or modify the product other than as stated in the information contained in this dealer’s manual.
•
All manuals and technical documents are accessible online at https://si.shimano.com.
•
For consumers who do not have easy access to the internet, please contact a SHIMANO distributor or any of the SHIMANO offices to obtain a hardcopy of the User's Manual.
•
Please observe the appropriate rules and regulations of the country, state or region in which you conduct your business as a dealer.
For safety, be sure to read this dealer’s manual thoroughly before use, and follow it for correct use.
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Page 4

TO ENSURE SAFETY

TO ENSURE SAFETY
WARNING
•
Be sure to follow the instructions provided in the manuals when installing the product.
Only use SHIMANO genuine parts. If a component or replacement part is incorrectly assembled or adjusted, it can lead to component failure and cause the rider to lose control and crash.
•
Wear approved eye protection while performing maintenance tasks such as replacing components.
Be sure to also inform users of the following:
•
Never use alkali- or acid-based solvents such as rust cleaners. If those solvents are used the chain might break and cause serious injury.
•
Clean the chain with an appropriate chain cleaner regularly. Intervals between maintenance depend on the use and riding circumstances.
•
Check that there are no cracks in the crank arms before riding the bicycle. If there are any cracks, the crank arm may break and you may fall off the bicycle.
•
Be careful not to let the hemming of your clothes get caught in the chain while riding. Otherwise you may fall off the bicycle.
•
Check the chain for any damage (deformation or cracking), skipping, or other abnormalities such as unintended gear shifting. If any problems are found, consult a dealer or an agency. The chain may break, and you may fall.
For Installation to the Bicycle, and Maintenance:
2 piece crank type
•
Install the inner cover correctly. If it is not installed correctly, the axle may rust and become damaged, and the bicycle may fall over and serious injury may occur as a result.
•
The two left crank arm screws should be tightened alternately in stages rather than each fully tightened at once. Use a torque wrench to check that the tightening torques are within the range of 12 - 14 N·m. Furthermore, after riding approximately 100 km (60 miles), use a torque wrench to re-check the tightening torques. It is also important to periodically check the tightening torques. If the tightening torques are too weak or if the mounting screws are not tightened alternately in stages, the left crank arm may come off and the bicycle may fall over, and serious injury may occur as a result.
CAUTION
Be sure to also inform users of the following:
•
Be careful not to touch the teeth of chainrings. There is a danger of injury.
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Page 5
TO ENSURE SAFETY
NOTICE
Be sure to also inform users of the following:
•
Before riding the bicycle, check that there is no play or looseness between connecting parts. Also, be sure to retighten the crank arm and pedals at periodic intervals.
•
Be sure to keep turning the crank arm during the shift lever operation.
MTB
•
When the chain is in any of the positions shown in the illustration, the chain may come into contact with the chainring or front derailleur and generate noise. If noise is a problem, shift the chain onto the next largest sprocket or the one after if the chain is in the position shown in Figure 1. Shift the chain onto the next smallest sprocket or the one after if it is in the position shown in Figure 2.
Figure 1
Double Triple
Chainring
Sprocket
•
Use a neutral detergent to clean the crank arm and the bottom bracket. Using alkaline or acidic detergents may cause discoloration.
•
If pedaling performance does not feel normal, contact your place of purchase.
•
Do not wash the bottom bracket with high-pressure jets of water. Water may enter the bearing section and cause noise or adhesion.
•
The chainrings should be periodically washed with a neutral detergent. In addition, cleaning the chain with neutral detergent and lubricating it can be an effective way of extending the life of the chainrings and the chain.
•
The cuffs of your clothing may get dirty from the chain while riding.
•
This product is not warrantied against damage caused by improper use, abuse, or issues resulting from a crash, unless the circumstance was caused by a manufacturing problem.
•
Products are not guaranteed against natural wear and deterioration from normal use and aging.
•
For maximum performance we highly recommend SHIMANO lubricants and maintenance products.
Figure 2
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TO ENSURE SAFETY
For Installation to the Bicycle, and Maintenance:
•
When installing the pedals, apply a small amount of grease to the threads to prevent the pedals from seizing. Use a torque wrench to securely tighten the pedals. Tightening torque is 35 - 55 N·m. The right crank arm has a right-hand thread, and the left crank arm has a left-hand thread.
•
If the bottom bracket shell is not parallel, gear shifting performance will drop.
•
If the chain keeps coming off the gears during use, replace the chainrings and the chain.
2 piece crank
•
When installing the left- and right-hand cups, apply grease and be sure to install the inner cover. Otherwise, the waterproofing performance will worsen.
•
To ensure the best performance, be sure to use only the specified type of chain.
•
If a squeaking noise is heard coming from the bottom bracket axle and the left crank arm connector, apply grease to the connector and then tighten it to the specified torque.
•
If you feel any looseness in the bearings, the bottom bracket should be replaced.
•
Be sure to use the specified chainring tooth combination. If an unspecified chainring is used, the chain may fall in between the chainrings, damaging them.
OCTALINK type/SQUARE type
•
Be sure to use only the applicable chain and bottom bracket.
•
Apply grease to the bottom bracket before installing it.
•
If you feel any looseness in the bottom bracket axle, the bottom bracket should be replaced.
The actual product may differ from the illustration because this manual is intended mainly to explain the procedures for using the product.
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Page 7
LIST OF TOOLS TO BE USED
Page 8

LIST OF TOOLS TO BE USED

LIST OF TOOLS TO BE USED
The following tools are needed for installation, adjustment, and maintenance purposes.
Tool Tool Tool
4 mm hexagon wrench Soft face mallet TL-FC32
5 mm hexagon wrench TL-FC10 TL-FC33
8 mm hexagon wrench TL-FC11 TL-FC36
Screwdriver [#2] TL-FC16 TL-BB12
15 mm spanner TL-FC18 TL-BB13
16 mm spanner TL-FC21 TL-UN66
17 mm spanner TL-FC31 TL-UN74-S
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Page 9
INSTALLATION
Page 10

INSTALLATION

List of tool combinations

INSTALLATION
List of tool combinations
Use the tools in the correct combination.
BB-MT500 / BB-MT501 / SM-BB52
TL-FC32 TL-FC33
TL-FC36
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Page 11
INSTALLATION
(A) (A)
(A)

2 piece crankset

2 piece crankset
Spacer installation method
1
(z)
Install the cups.
2
See the illustrations for band types and bracket types.
Check whether the width of the bottom bracket shell is 68 mm, 73 mm, or 83 mm.
(z)
Bottom bracket shell width
Band type
68 mm 73 mm
(A)
2.5 mm spacer
TECH TIPS
If using a band type front derailleur and a bottom bracket shell having a width of 68 mm, install the three spacers so that there are two on the right and one on the left as shown in the figure. A 1.8 mm spacer and 0.7 mm spacer can be used together instead of a 2.5 mm spacer.
68 mm
1.8 mm spacer*
0.7 mm spacer
2.5 mm spacer
11
*
1.8 mm corresponds to the thickness of the chain case.
Page 12
INSTALLATION
2 piece crankset
Bracket type
68 mm 73 mm
(A)(B) (A)
(B)
(A)
BB mount-type bracket
(B)
2.5 mm spacer
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Page 13
INSTALLATION
2 piece crankset
Installation of the crankset
1
(D)
(A)
(B) (C)
(E)
Grease the left- and right-hand cups and use the SHIMANO original tool to install the right-hand cup of the bottom bracket, the inner cover and the left-hand cup of the bottom bracket.
(A)
TL-FC32
(B)
Inner cover
(C)
Right-hand cup (left-hand thread) (Right-hand thread for 70 mm [M36])
(D)
Left-hand cup (right-hand thread)
(E)
Apply grease: Premium Grease (Y04110000)
Tightening torque
35 - 50 N·m
2
Fully insert the right crank arm unit until it touches the bottom bracket.
To be continued on next page
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Page 14
INSTALLATION
2 piece crankset
3
(A)
(B)
(B)
(C)
Set the wide groove area of the left crank arm into the axle of the right crank arm unit where the groove is wide.
Use the SHIMANO original tool to tighten the cap.
(A)
Wide groove area (left crank arm)
(B)
Wide groove area (axle)
(C)
Apply grease: Premium Grease (Y04110000)
(A)
TL-FC16
(B)
Cap
(C)
Apply grease: Premium Grease (Y04110000)
Tightening torque
4
0.7 - 1.5 N·m
(A)
(C)
To be continued on next page
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Page 15
INSTALLATION
2 piece crankset
5
(z)
(B)
(C)
(A)
Push in the stopper plate and check that the plate pin is securely in place, and then tighten the screws of the left crank arm.
(z)
The illustration is of the left crank
arm (cross-section)
(A)
Plate pin
(B)
Stopper plate
(C)
Left crank arm
Tightening torque
12 - 14 N·m
NOTICE
•
The two screws should be tightened alternately in stages rather than each screw being fully tightened at once.
•
For MTB/Trekking Spacers used vary according to the width of the bottom bracket shell. For details, refer to “Spacer installation method”.
•
Set the stopper plate in the correct direction as shown in illustration.
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Page 16
INSTALLATION

OCTALINK type

OCTALINK type
Installation of the bottom bracket
(A) (B) (C)
Apply grease to the main body, and install using the SHIMANO original tool.
First install the main body, then the cup.
(A)
Cup
(B)
Body
(C)
Apply grease: Premium Grease (Y04110000)
Tightening torque
50 - 70 N·m
NOTICE
If the cup is made of aluminum or steel
Apply grease to the cup.
Installation of the crankset
Use a hexagon wrench to install the crankset.
If the cup is made of plastic
Do not apply grease to the cup.
(A)
8 mm hexagon wrench
Tightening torque
35 - 50 N·m
(A)
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Page 17
INSTALLATION

SQUARE type

SQUARE type
Installation of the bottom bracket
(A) (B)
(C)
Install using the SHIMANO original tool.
First install the main body, then the cup.
(A)
Cup
(B)
Body
(C)
Crankset
Tightening torque
50 - 70 N·m
NOTICE
If the main body and cup are made of aluminum or steel
Apply grease to the main body and cup.
Apply grease: Premium Grease (Y04110000)
If the main body and cup are made of plastic
Do not apply grease to the main body or cup.
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Page 18
INSTALLATION
SQUARE type
Installation of the crankset
When using a hexagon wrench
(A)
When using SHIMANO original tools
Use a hexagon wrench to install the crankset.
Use the SHIMANO original tool to install the crankset.
(A)
8 mm hexagon wrench
Tightening torque
35 - 50 N·m
(A)
TL-FC10 / TL-FC11
(B)
15 mm spanner / 16 mm spanner
(A)
(B)
Tightening torque
35 - 50 N·m
TECH TIPS
•
When using TL-FC10, use a 16 mm spanner.
•
When using TL-FC11, use a 15 mm spanner.
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PRESS-FIT BB
Page 20

PRESS-FIT BB

Bottom bracket cups

PRESS-FIT BB
Bottom bracket cups
(A) (C)(B)
(z)
Bottom bracket shell width
(A)
Left-hand cup
(B)
Inner cover
(C)
Right-hand cup
(D)
2.5 mm spacer
Assembly example
Bottom bracket shell with 92 mm
width
Bottom bracket shell with
89.5 mm width
(z)
•
The 2.5 mm spacer is not needed for a bottom bracket shell width of 92 mm.
•
Use the inner cover.
•
For a bottom bracket shell width of 89.5 mm, insert the
2.5 mm spacer into the right-hand side (between the frame and the right-hand cup).
•
Use the inner cover.
(D)
(A)
NOTICE
Some models do not need spacers.
(A)
2.5 mm spacer
NOTICE
•
If there are any openings inside the frame’s bottom bracket shell, install the bottom bracket with the inner cover to prevent contamination.
•
If there are no openings inside the frame’s bottom bracket shell, the bottom bracket can be installed without the inner cover.
20
Page 21
PRESS-FIT BB

Installation

Installation
1
Insert the bottom bracket into the bottom bracket shell.
2
3
(A)
Insert the SHIMANO original tool into the bottom bracket.
Press fit the bottom bracket by tightening with a spanner while making sure that the contact surface of the
(B)(A)
bottom bracket stays parallel to the contact surface of the bottom bracket shell.
(A)
TL-BB12
(A)
17 mm spanner
(B)
8 mm hexagon wrench
4
Check to confirm that there is no gap between the bottom bracket and the bottom bracket shell.
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Page 22
PRESS-FIT BB

Removal

Removal
1
2
(A)
Insert the SHIMANO original tool into the bottom bracket.
As shown in the illustration, hold down the flap with your fingers and push it in from the opposite side. (When pushed in, the flap opens.)
(A)
TL-BB13
NOTICE
Do not reuse the cups as they can be damaged during removal.
TECH TIPS
While holding down the end of the removal tool, push the tool in from the other side until it locks in place.
3
4
(A)
(A)
Tap the SHIMANO original tool with a soft face mallet until the end of the bottom bracket is ejected.
Tap the opposite end of the bottom bracket in the same way and remove it.
(A)
Soft face mallet
(A)
Soft face mallet
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Page 23
MAINTENANCE
Page 24

MAINTENANCE

Replacing chainrings

MAINTENANCE
Replacing chainrings
NOTICE
For models that are not described here, refer to the section "INSTALLATION (CHAINRINGS)" in General Operations.
Double chainring type (FC-M3000-B2 / FC-M4050-B2)
Set the largest chainring so that the chain drop prevention pin is positioned under the crank arm.
1
(B)
(A)
With the marked side of the smallest chainring facing inward, set the smallest chainring so that the alignment tab is positioned under the crank arm.
(A)
Crank arm
(B)
Chain drop prevention pin
Tightening torque
12 - 14 N·m
(A)
Crank arm
(B)
Alignment tab
Tightening torque
2
16 - 17 N·m
(B)
(A)
24
Page 25
MAINTENANCE
Replacing chainrings
Triple chainring type (FC-M3000/M4000/M4050/M4060/MT300)
Set the largest chainring so that the chain drop prevention pin is positioned under the crank arm.
(z)
1
(A)
(z)
Set the middle chainring and the smallest chainring so that the marked sides face inward and the alignment tab on each chainring is positioned under the crank arm.
(z)
5 mm hexagon wrench
(A)
Chain drop prevention pin
(A)
Crank arm
(B)
Alignment tab
(C)
Inner side
FC-M3000/M4000/M4050
2
(B)
(A)
Smallest chainring Tightening torque
16 - 17 N·m
Largest chainring/ Middle chainring
Tightening torque
12 - 14 N·m
NOTICE
•
Set the largest chainring and the middle chainring of FC-M3000/M4000/M4050 so that the alignment tabs of the nuts fit the notches in the holes of the chainring.
•
TL-FC21 is used with the largest chainring and middle chainring of FC-M4060.
(C)
25
Page 26
MAINTENANCE

Installation of the chain guard

Installation of the chain guard
FC-M2000/M3000/M4000/M4050/M4060/MT101/MT200-3/MT210/MT300-40T/MT210-2/TY510-2 specifications
Attach the chain guard to the largest chainring as shown in the illustration.
Pass the chain guard between crank arm and chainring, and set the flat area so that is aligned with the position of the crank arm.
1
(A)
(A)
Flat area
Install the chain guard. Refer to the illustration to see where to tighten the screws.
2
Tightening torque
1.5 - 2 N·m
26
Page 27
MAINTENANCE
Installation of the chain guard
FC-MT300-44T specification
Attach the chain guard to the largest chainring as shown in the illustration.
Pass the chain guard between crank arm and chainring, and set the flat area so that is aligned with the position of the crank arm.
1
(A)
(A)
Flat area
Install the chain guard. Refer to the illustration to see where to tighten the screws.
2
Tightening torque
1.5 - 2 N·m
27
Page 28
Please note: specifications are subject to change for improvement without notice. (English) ©
Sep. 2022 by SHIMANO INC. ITP
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