Gilera Nordwest, Workshop Manual

Page: 78 / 136

DISASSEMBLY
Disconnect the speedometer cable.
Loosen the lock-spindle screws on the right side.
By means of a pin, loosen and slide out the wheel spindle.
Remove the wheel.
Warning: After the wheel removal, never move the front brake lever.
This is to facilitate, when installing, the disc fitting into the pads.
Spindle straightness inspection
Place the spindle on two “V” shaped supports, then, by means of a gauge,
measure its eccentricity (fig. 13).
Allowable limit: 0.20 mm.
Rim
Place the wheel on a centering bench, then check rim centering. Rotate the
wheel by hand, then, by means of a gauge, note the out centering value with a
gauge (fig. 14).
Allowable limit: Radial variation 2.00 mm. Axial variation 2.00 mm.
Bearing inspection
Rotate, with a finger, each bearing inner race. The bearings must turn
smoothly and without noise, assure that the outer race is correctly housed on
wheel hub.
In case that the bearing races don’t turn freely and without noise, remove and
replace the bearings.
Brake disc inspection
Measure the brake disc thickness.
Allowable limit: 4.0 mm RC600 89/90
4.5 mm RC600 91
5.0 mm RC600 R
Check the brake disc planarity (fig. 15).
Allowable limit: 0.025 mm. RC600 89/90
0.100 mm. RC600 91
0.200 mm. RC600 R
Bearing dismantling
Remove the tachometer gear dust protection seal.
Remove the wheel bearings and the spacer bushing from the wheel hub.
Warning: Never re-use the removed bearings.
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