GT Grade, Руководство пользователя

Страница: 143 / 220

143
PART 2
3. Understanding components
Section D. Inspect For Safety
GT Bicycle Owner’s Manual
■ Seat Post
Remove from seat tube and remove from saddle.
Disassemble the head/saddle clamp assembly. Clean
and inspect all parts carefully for cracks.
Pay particular attention to the bolt (or bolts) that clamp
the saddle in place. If the bolt looks stretched, bent or
in any way damaged, replace it. Note that these bolts
have been known to be broken due to fatigue when not
properly tightened. They must be tightened with a
torque wrench.
The threads of the seat post bolts be greased before
reassembly.
Be sure the clamp assembly is clamped only to the
straight parallel part of the saddle rails.
■ Seat Post Lubrication
Clean and apply the following to a seat post before
inserting into the frame.
Frame material
Seat post
lubrication
Seat tube Seat post
Alloy Alloy Grease
Alloy Carbon Carbon gel
Carbon Alloy Carbon gel
Carbon Carbon Carbon gel
GREASE - A high-quality bicycle bearing grease
CARBON GEL - Is a gel like lubricant formulated for use
with carbon fiber components.
■ Saddle
While the saddle is off the seat post, clean and
inspect the rails carefully for cracks. Check the
saddle rails to the saddle body; make sure that the
rails are firmly attached.
■ Pedals
Remove both from the crankset. Clean and inspect
carefully for cracks. Pay particular attention to the
pedal axle. See clipless pedal manufacturer’s
instructions for information on cleat wear and
replacement.
■ Crankset
Remove both sides from the bottom bracket. Clean and
inspect all parts carefully for cracks. Examine both
inside and outside surfaces. Pay particular attention to
edges, shapes and changes of shape that are a part of
your particular crankset design. Also check the area
around the pedal mounting holes.
■ Wheels
Clean the wheels. Inspect the hub flange, where the
heads of the spokes are hooked (or otherwise attached)
to the hub flange, for cracks. Inspect the rim where the
spokes meet the rim. It is not uncommon to see cracks
form where the spokes meet the rim.
■ Brake Track of Wheel Rim
The brake track is the surface of the rim where the
brake pads make contact. While not related to fatigue,
this surface can be worn out. We urge you to inspect
the brake tracks on your rims. They can wear out quite
quickly on a mountain bike used in abrasive conditions.
Many rims have brake track wear indicators; please ask
your retailer to show you this feature.