Shimano MTB SHADOW RD-M786 - Replacing B Tension Spring (RD-M4000;M3000)

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 Replacing the B tension spring (RD-M4000 / RD-M3000)
1. Remove the E-ring from the bracket axle.
E-ring
Bracket axle
Note:
Some models do not have an E-ring. (Function is not affected.)
2. Remove the bracket axle using a 5 mm Allen key, then remove the B tension spring and adapter set from the bracket member.
Tightening torque:
8.0 - 10.0 N·m {70 - 87 in. lbs.}
Adapter set
Bracket member
B tension
spring
5 mm Allen key
Bracket axle
B axle bush
3. Remove the B tension spring from the adapter set.
B tension
spring