Maintenance Advice - BERG Vertex Serie Benutzerhandbuch

MAINTENANCE ADVICE

Your bicycle requires periodic maintenance to ensure proper functioning and a useful, prolonged life for the components.
Check the components regularly and look for signs of wear and damage. Frequently check the tyres and brakes and look for cuts
and signs of wear.
A qualified mechanic should perform maintenance checks. Please contact your retailer to book periodic maintenance checks.
CLEANING AND LUBRICATION
GENERAL INFORMATION
It is important to clean and lubricate your bicycle often.
Cleaning and lubricating the bicycle components need to be adapted to the use and frequency of use.
There is a direct link between component quality of life and how often they are cleaned and lubricated. Dirty and poorly lubricated
components will have a shorter quality of life.
Your bicycle should be cleaned with running water and a mild detergent. Transmission should be cleaned with a suitable degreaser
and finished off with running water and a mild detergent.
Great care must be taken with the brakes. The braking surfaces must be cleaned thoroughly. Any grease present on the braking
surfaces could severely affect the brake function, leading to falls and accidents.
All components should be carefully dry before being lubricated. Any trace of water can lead to oxidation and premature wear of
its components.
Specific lubricants should be used on the transmission. Excess lubricant should be wiped off to prevent dirt accumulation.
Cables and spiral cables should be lubricated as well. Cable and spiral cable lubrication is essential for proper brake functioning and
transmission. Seat post and headset should be lubricated with a specific lubricant.
Note: It is essential to store your bicycle in a dry place and protected from weather. Exposing your bicycle to weather can reduce com-
ponent quality of life (premature oxidation).
We recommend a qualified mechanic clean and lubricate your bicycle. Contact your retailer to book periodic checks.
The above information is only general cleaning and lubrication advice, it does not invalidate periodic checks carried out by a qualified
mechanic.
For questions relating to bicycle cleaning and lubrication, contact your retailer.
TRANSMISSION MAINTENANCE AND ADJUSTMENT
CHAIN
The chain must be kept clean and free of rust. It should be lubricated frequently to prolong its quality of life for as long as possible.
It should be replaced if it stretches, breaks or causes ineffective gear shifting. Make sure there are no stiff links, they should all
move freely.
REAR SPROCKET
DERAILLEUR
FUNCTION:
Never ride a bicycle whose gears are not working properly. If the appropriate adjustments are not made, there may be irreparable
damage to the bicycle and/or personal injury. Never change gears when pedalling backwards, nor pedal backwards after having
changed gears. This could jam the chain and cause serious damage to the bicycle and cyclist.
Transmission tuning is a very technical procedure and should be performed by a qualified technician.
Please contact your retailer if you have any doubts.
The derailleur system includes a front and rear derailleur, shift levers and derailleur control cables, which must function properly to
trigger smooth gear changes. The derailleur system must be checked at least every month. The rear derailleur should be checked
first, then the front derailleur. The rear derailleur should shift the chain steadily, from one sprocket to the next without hesitation.
After shifting, the rear derailleur should not exert friction on the chain. The derailleur should never cause the chain to come loose
from the inner or outer sprockets on the free wheel.
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The front derailleur should also shift the chain steadily and without hesitation between each chainring. When the chain is placed
on a new chainring, it should not exert friction on the front derailleur. The chain should not come off the chainring at any point in
time.
The derailleur control cables are a key component, which require proper maintenance for the gears to work accurately. Check them
if you notice signs of rust, if they are coiled and worn, if they have broken strands or if you notice some damage to the cable spiral.
Note: For gears to function you must pedal forward. You cannot change gears with the derailleurs if you are stopped or pedalling
backwards.
Before changing speed, reduce the pressure on the pedals. To achieve a smooth change of speed when approaching a mountain, change
to a lower gear before the speed of pedalling decreases too. When coming to a stop, first change to a lower gear so that it is easier to
begin pedalling again. If, after selecting a new position, you hear a slight sound of friction from the front or rear gears, gently adjust to
the appropriate gear using the tourney until the noise disappears.
To achieve optimum performance and a longer chain lifespan, we recommend avoiding the use of extreme gear change combinations
over prolonged periods of time.
3 2 1
HIGH MEDIUM LOW THESE COMBINATIONS ARE NOT RECOMMENDED
FOR ACHIEVING OPTIMUM PERFORMANCE
ADJUSTING REAR DERAILLEUR:
Firstly, place the rear derailleur on the highest number indicated, disconnect the cable fixing bolt of the rear derailleur and place
the chain on the smallest sprocket.
Tighten the upper limit screw so that the pulley guide and smallest sprocket are aligned vertically. Reconnect the cable, remove
any tension and retighten the fixing bolt. Change speed, making sure that each switch is done smoothly and without hesitation.
If necessary, use the tourney to tune each gear change, turning it in the direction you want the chain to go in. For example, if you
turn clockwise, the cable voltage will be released and the chain will move away from the wheel, while spinning anti-clockwise
tightens the cable tension and the chain moves towards to the wheel. Place the rear shifter in to first gear and put the chain on the
larger sprocket. Set the lower limit screw in a quarter turning increments until the guide pulley and the larger sprocket are aligned
vertically. Once more, shift through the gears several times, checking that each gear is achieved smoothly. It may need to be done
several times until the rear derailleur and cable are properly adjusted.
FREEWHEEL OUTER UPPER UPPER SPROCKET ADJUST-
SPROCKET MENT BOLT
PULLEY ADJUSTMENT BOLT
ADJUSTMENT BOLT
UNDER SPROCKET
GUIDE PULLEY
TOURNEY
ADJUSTMENT BOLTS
SIS CABLE
TENSION PULLEY
REGULATOR
ADJUSTING FRONT DERAILLEUR:
Place both gears on the lowest number and put the chain on the sprocket and corresponding ring. Disconnect the cable from the
front derailleur the mounting bolt cable. Check the position of the front derailleur, which should be parallel to the external ring, and
clear the larger ring by 1 to 3mm when fully engaged. With the chain on the smaller ring at the front and the sprocket at the back,
adjust the lower limit screw so that the chain is centred on the front derailleur tab. Connect the cable once more, remove all the
tension and tighten the fixing bolt securely. Place the front derailleur on the larger ring. If the chain does not remain on the larger
ring, turn the upper limit screw in clockwise ¼ turn increments until the chain has stopped falling. Shift through each gear using
the tourney to tune each switch. The front derailleur tourney is located on the handle of the front gears, where the cable comes
out of the gear handlebar. Turning clockwise will loosen the cable tension and direct the chain closer to the frame, while turning
counter-clockwise will tighten the cable tension and move the chain away from the frame.
2 1
HIGH LOW THESE COMBINATIONS ARE NOT RECOMMENDED
FOR ACHIEVING OPTIMUM PERFORMANCE
CABLE ANCHOR
GUIDE
LOWER
ADJUSTMENT BOLT
UPPER
ADJUSTMENT BOLT
CHAIN GUIDE
1-3mm FREE SPACE
EXTERNAL CHAIN
GUIDE
INTERNAL
CHAIN
DERAILLEUR SIDE VIEW PROTECTION
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