Infinity BMX BICYCLES, Руководство пользователя

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Detailed Maintenance Detailed Maintenance
Lubrication
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Adjustment - Front Derailleur
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Lubrication
All the pivoting points of the front and rear derailleurs should be lubricated
with light oil at least every month. Be sure to wipe off any excess oil to
prevent attraction of dirt into the mechanisms. The shifting cables should
be cleaned and re-coated with a thin layer of grease every six months, or
whenever new cables are being installed.
Adjustment – Rear Derailleur
The Low limit screw determines how far the rear derailleur will travel
toward the wheel of the bicycle, while the High limit screw determines how
far he cage will travel toward the frame.
1. Shift the rear shifter to the largest number indicated, disconnect the
rear derailleur cable from the cable anchor bolt and place the chain on
the smallest sprocket.
2. Adjust the High limit screw so that chain and the smallest sprocket
are lined up vertically. Remove any slack in the cable by pulling it taut,
then re-connect the cable and tighten the cable anchor bolt securely.
3. Shift up through the gears makes sure that each gear is achieved
quietly and without hesitation.
If noise occurs, use the barrel adjuster to fine-tune the cable tension.
Turning the barrel adjuster clockwise will decrease cable tension and
allow the derailleur cage to move farther away from the bicycle in
small increments. Turning counter-clockwise will increase cable
tension and bring the cage closer to the bicycle. This will micro-adjust
the positioning of the derailleur cage in relation to the freewheel.
Simply put; turn the barrel adjuster the direction you want the chain to
go.
4. Shift the chain onto the largest sprocket; adjust the low limit screw so
the chain and the largest cog are lined up vertically. If you are unable
to get the chain and the largest cog, turning the Low limit screw
counter-clockwise will enable the chain to move towards the wheel.
5. Shift through the gears ensuring each gear is achieved quietly and
without hesitation.
Rear Derailleur Rear View
Freewheel
SIS Cable Adjuster
Outer side of Top Gear
Pulley Adjustment
Screw
Guide Pulley
Tension Pulley
Adjustment
Screws
Rear Derailleur Side View
SIS Cable
Adjuster
High Gear
Adjustment Screw
Low Gear
Adjustment Screw
NOTE: It may take several adjustments to achieve the desired positioning.
Please refer to the troubleshooting section for more assistance.
Adjustment – Front Derailleur
1. Shift the rear shifter to the smallest number indicated, then shift the front
shifter to the smallest number indicated. Disconnect the front derailleur
cable from the cable anchor bolt and place the chain on the smallest
chainwheel.
2. Make sure the front derailleur cage is parallel with the outer chainwheel
on the crankset. There must be a 3-5mm gap between the bottom of the
derailleur cage and the top of the outer chainwheel teeth to ensure the
derailleur will clear the chainwheel when shifting.
3. Adjust the low limit screw so the chain is centered in the middle of
derailleur cage. Pull all slack out of the cable by pulling it taut, then
reconnect the cable and tighten the cable anchor bolt securely.
4. Shift the front shifter into the largest gear and pedal the bike so the chain
jumps to the largest chainwheel. If the chain does not shift onto the
largest chainwheel, you will need to turn the High limit screw counter-
clockwise until the chain moves to the largest chainwheel. If the chain
falls into the pedals, the High limit screw has been tuned too far. You will
need to readjust the High screw clockwise in 1/4 turn increments until the
chain no longer falls off.
5. Shift through each gear ensuring all are achieved quietly and without
hesitation.
6. The barrel adjuster for the front derailleur is located on the shift
mechanism. Turning clockwise will decrease cable tension and allow the
front derailleur cage to move away from the bike, while turning counter-
clockwise will increase tension and bring the cage closer to the bike. If
you are experiencing problems shifting between gears, use the barrel
adjuster to fine-tune the cable tension.
NOTE: It may take several adjustments to achieve the desired positioning.
Cable Fixing Bolt
Outer Chainguide
Inner Chainguide
Low Adjusting Screw
High Adjusting
Screw
Chainguide
clearance of
1-3 mm