Checking The Parts; Chain; Disassembling The Chain; Refitting The Chain - APRILIA QUASAR 125 2003 Workshop Manual

QUASAR 125-180
6.6

CHECKING THE PARTS

BRAKE DRUM
"
Check sliding surface: it shall be free from scoring and /or cracks. In case of
minor scores, grind surface with soaked emery cloth (grain 1). In case of
deep scores, change drum (1).
SEALS
"
Check seals for wear. If excessively damaged or worn, change them.
BRAKE BLOCKS
Check friction material (2) for wear.
Min. thickness: 1mm.
"
Check springs (3). Change them if yielded.
"
Check the following parts for wear:
- brake cam (4);
- block holder plate (5);
- brake lever (6).
Change those parts which are excessively worn or damaged.
6.7

CHAIN

6.7.1

DISASSEMBLING THE CHAIN

Carefully read see 1.3 (GENERAL SAFETY RULES).
"
Slacken chain tension, see 6.7 (CHAIN).
"
Turn rear wheels until having the master link exposed.
"
Remove clip (1) and the plate underneath.
"
Working on the opposite side, remove the master link (2).
"
Remove chain.
If the chain is excessively worn, change the whole unit (front and rear
sprockets and chain).
6.7.2

REFITTING THE CHAIN

"
Make sure that chain is correctly positioned on front and rear sprockets.
"
Proceed to chain positioning: the two free ends to be joined together shall
be in a central point between front and rear sprockets, in the chain upper
section.
"
Join the two chain ends and insert master link (1) pins from the inside to the
outside.
"
Install plate (2) onto pins.
"
Fit clip (3) onto pins.
NOTE
Master link clip (3) opening shall be opposite to the direction of travel.
Release 00/2003 - 09
CYCLE PARTS
5 6
4
2
1
1
Direction of rotation
3
2
1
3
2
1
6 - 27 -
00