Acros pressfit bb86 Instructions page 2

inner bearing instructions
and product information
pressfit bb86
www.acros-components.com
Basic safety instructions
Failure to observe the instructions in this manual can lead to accidents
resulting in death or serious injury. Please read the instructions carefully
before carrying out the necessary assembly and maintenance work. Always
observe and follow all installation and maintenance instructions – including
those in the operating manuals of the other products on your bike (frame,
fork, handlebar stem etc.). Make sure that other users of your bicycle read
and follow all instructions just as carefully.
Do not overestimate your technical skills. Always have assembly and main-
tenance work carried out by the specialists at your local bike shop. That way
you can rest assured that everything has been done correctly. Only use
original acros parts and always keep your bike in perfect technical condition.
Check whether all components are correctly adjusted and tightened before
each ride.
Note: If you have any questions, please don't hesitate to contact acros or
your local dealer.
Liability for material defects
The statutory liability for material defects applies for the first two years. This
regulation only applies in countries that have ratified the EU proposal.
Components that are subject to natural wear and tear, such as ball bearings,
are excluded. Please contact the acros team or your local dealer should any
defects occur. The costs of fitting or replacing components will not be
reimbursed in the event of a warranty claim. The statutory warranty only
applies to the original purchaser on presentation of a receipt (indicating the
date of purchase and model name) and when used as intended by us.
Damage due to wear and tear, neglect (lack of maintenance and care),
crashing, overloading as well as modification of the components (drilling,
grinding, etc.) and improper assembly of the components are excluded. If you
wish to submit a warranty claim, please print out the warranty form at
www.acros-components.com, fill it in and send it together with the product to:
acros sport GmbH Benzstr. 58 71272 renningen, germany.
mail@acros-components.com
en
end cap
dust cap
bearing shell
and bearing
connecting sleeve
optional spacer
bearing shell
and bearing
dust cap
1
clean the bottom
bracket shell
Remove all paint residue from the edges of the
bottom bracket shell and clean the inside.
Make sure that the ends of the bottom bracket shell
are perfectly flat and parallel to one another.
If necessary, face the bottom bracket shell with a
suitable tool (only for steel, titanium and
aluminium frames).
2
insert connecting sleeve
Slide the connecting sleeve into one of the two
bearing shells. These are identical on both sides.
Make sure that the sleeve is straight as you push it in.
3
check the frame
Measure the width of your bottom bracket shell, ideally
with a sliding caliper. Only use the supplied 2.5 mm
spacer on the drive side if the bottom bracket shell is
89.5 mm wide.
Bottom bracket shell width spacer
86,5mm
89,5mm
92mm
4
apply grease
Coat the contact surfaces of the bearing shells
with grease. If necessary (see step 3), slide the
spacer onto the drive side bearing shell.
5
press in bearing shells
Using the correct tool, press the drive side bearing
shell into your frame while making sure that the
connecting sleeve is straight. Repeat these steps on
the non-drive side. Don't press on the inner rings of
the angular contact ball bearings under any
circumstances. When you're done, check that the
bearing shells are parallel to each other and flush
against the frame.
6
left right
grease bearings
Grease the outer side of the bearing on the red seal,
so that it is also protected from incoming moisture
and dirt.
7
left right
fit dust cap (POM)
Now, carefully press the dust caps onto the bearings.
The dust caps should sit flush with the outside of the
bearing shell, keeping the grease applied to the
outside of the bearings.
8
mount cranks
Mount the cranks according to the manufacturer's
instructions. Make sure to tighten the end caps on
the cranks only until you can no longer feel any axial
play. If you overtighten them, it will shorten the
service life of your bottom bracket and the cranks
won't spin freely.