55
use and maintenance RS 125
u
Loosen the nut (2) completely.
For the wheel centering fixed
reference marks (3-4) are
provided, which can be seen inside the
chain tightener seats on the rear fork
arms, before the wheel pin.
u
Loosen the two lock nuts (5).
u
Act on the adjusters (6) and adjust the
chain slack, making sure that the
reference marks (3-4) are correctly
positioned on both sides of the vehicle.
u
Tighten the two lock nuts (5).
u
Tighten the nut (2).
Wheel nut driving torque:
100 Nm (10 kgm).
u
Check the chain slack, see page 54
(CHECKING THE SLACK).
CHECKING THE WEAR OF CHAIN,
PINION AND CROWN
Further, check the chain and sprockets
and make sure that they do not present:
u
Damaged rollers.
u
Loose pins.
u
Dry, rusty, crushed or seized links.
u
Excessive wear.
u
Sprocket or teeth excessively worn or
damaged.
If the chain rollers are damaged
and/or the pins are loose, it is
necessary to change the whole
chain unit (both sprockets and chain).
Lubricate the chain frequently,
especially if there are dry or
rusty parts. The crushed or
seized links must be lubricated and
made work again.
If this is not possible, contact an aprilia
Official Dealer, who will provide for
changing the chain.
u
Check the wear of the chain tightener
roller (7).
u
Finally, check the wear of the rear fork
protection shoe.
CLEANING AND LUBRICATION
Carry out the adjustment,
lubrication, cleaning and change
of the chain with great care.
Lubricate the chain every 500 km (312 mi)
or whenever necessary.
Lubricate the chain with spray grease for
chains or with SAE 80W-90 oil.
Never wash the chain with water jets,
steam jets, high-pressure water jets and
highly inflammable solvents.
4
6
5
RS_125_UK.book Page 55 Tuesday, June 13, 2006 1:34 PM
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