Kettler KT902-189 - Manual (Page 24)

General Maintenance
Repair and Service
WARNING:
• Inspect the bicycle frequently. Failure to inspect the bicycle and to make repairs or
adjustments, as necessary, can result in injury to the rider or to others. Make sure all parts
are correctly assembled and adjusted as written in this manual and any “ Special
Instructions”.
• Immediately replace any damaged, missing or badly worn parts, components or hardware.
• Make sure all fasteners are correctly tightened as written in this manual and any “Special
Instructions”. Parts that are not tight enough can be lost or operate poorly. Over tightened
parts can be damaged. Make sure any replacement fasteners are the correct size and
type.
• If your frame is aluminum, inspect the bicycle frame carefully and frequently. Aluminum
frames can develop very small cracks due to stress, severe shocks, etc. If you see any
small cracks, stop riding the bicycle. Have the frame inspected by a qualified professional
at a bicycle service shop before riding the bicycle again.
• Even though your frame may be aluminum, we recommend that you do not leave your
bicycle outdoors for a long period of time. The elements will eventually corrode all
non-aluminum components and hardware.
Note: Have a bicycle service shop make any repairs or adjustments for which you do not have
the correct tools or if the instructions in this manual or any “Special Instructions” are not
sufficient for you.
Inspection of the Bearings
Frequently check the bearings of the bicycle. Have a bicycle service shop lubricate the bear-
ings once a year or any time they do not pass the following tests:
Head Tube Bearings
The fork should turn freely and smoothly at all times. With the front wheel off the ground, you
should not be able to move the fork up, down or side-to-side in the head tube.
Crank Bearings
The crank should turn freely and smoothly at all times and the front sprockets should not be
loose on the crank. You should not be able to move the pedal and of the crank from side-to-
side.
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