Elastic Bands Control - Benelli 2009 TREK1130 Workshop Manual

ENG
5 61

ELASTIC BANDS CONTROL

The following procedure is applied to all elastic bands.
1 Check:
• there are no scratches and signs of forcing on
every band
If out of specification
bands and the pistons.
1
2 Measure:
• the side clearance between one piston band and
the other
If out of specification
the relative bands together.
N OTE: N
Before measuring the side clearance between the
piston bands, eliminate any carbonaceous deposits
from the piston bands and from the relative
grooves.
2
3 Measure:
• the upper band thickness
• the second band thickness
3
Replace the relative
Replace the piston and
Side clearance between
the piston bands
Upper band
<Limit> : 0.20 mm (0.0078 in)
Second band
<Limit> : 0.18 mm (0.0070 in)
Elastic bands thicknesses
Upper band
0.97 ~ 0.99 mm
(0.0381 ~ 0.0389 in)
Second band
0.97 ~ 0.99 mm
(0.0381 ~ 0.0389 in)
PISTONI