Movable Driving Half Pulley - APRILIA M192M Workshop Manual

ENGINE
3.1.21.

MOVABLE DRIVING HALF PULLEY

•
Measure the outside diameter of the pulley sliding
bushing.
D4:
Min. permitted diameter: Ø 25.95 mm
Standard diameter: Ø 25.959 ÷ 25.98 mm
• Check the rollers for damage or wear.
D5: ENGINES M192M / M191M / M245M / M281M (125 -
150 CC)
Min. permitted diameter: Ø 18.5 mm
Standard diameter: Ø 18.9 ÷ 19.1 mm
D5: ENGINES M234M / M282M (200 CC)
Min. permitted diameter: Ø 20.1 mm
Standard diameter: Ø 20.5 ÷ 20.7 mm
• Check the degree of wear of the brass bush and
measure its inside diameter.
D3:
Min. permitted diameter: Ø 26,12 mm
Standard diameter: Ø 26,000 ÷ 26,021 mm
WARNING
Do not lubricate or clear the brush
•
Ensure that counter plate shoes are not worn out.
•
Check the wear of roller recesses and belt contact sur-
faces on both half pulleys.
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Engines M192M / M191M / M245M / M234M / M282M / M281M