SERVICE AND SETTING UP
2 -48
Pegaso 650 I.E.
2.29.2 CHECKING THE DRIVING CHAIN, PINION AND
SPROCKET WEAR
â—† To put a driving chain under tension, see 2.29.3 (AD-
JUSTING THE DRIVING CHAIN).
â—† Count 21 pins (20 steps) on a branch of the chain and
measure the distance between the two end pins.
If the distance is larger than the limit indicated below,
replace the chain, see 7.11 (DISASSEMBLING THE
DRIVING CHAIN).
Wear limit: 304 mm (MAX 0.5%).
2.29.3 ADJUSTING THE DRIVING CHAIN
If after the check it is necessary to adjust the chain ten-
sion, slacken the chain to increase the slack, tighten the
chain to decrease it.
â—† Position the vehicle on the appropriate rear support
stand, see 1.8.1 (POSITIONING THE VEHICLE ON
THE REAR SUPPORT STAND m).
â—† Lock the rotation of the wheel pin (1) with the appropri-
ate key.
â—† Loosen the nut (2).
NOTE Numbered reference marks connected with the
movement of the adjusters (3) (4) are provided for the
wheel centering.
These reference marks can be seen by looking inside two
slots (5) (6) positioned on the rear fork rods, before the
wheel pin.
â—† Act on the left (3) and right (4) adjusters and adjust the
chain slack, making sure, on both sides of the vehicle,
that the same reference marks can be seen when look-
ing inside the slots (5) (6).
â—† Lock the rotation of the wheel pin (1) with the appropri-
ate key.
â—† Tighten the nut (2).
Rear wheel nut driving torque: 100 Nm (10 kgm).
â—† Check the chain slack, see 2.29.1 (CHECKING THE
DRIVE CHAIN SLACK).
Release 00/2002-02
- 00
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