102 - 122
4.1
.
0
- BLADE ENGAGEMENT ADJUSTMENT
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2000
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WORKSHOP MANUAL
page
4.1 BLADE ENGAGEMENT ADJUSTMENT
The blades are moved by the engine by means of a
“V” belt and are engaged by a stretcher operated by
the lever (
➤
in models with lever eoperated ngage-
ment) or by a combined clutch/brake group (
➤
in
models with electromagnetic engagement).
After a certain amount of use, the belt and the cable
can change in length (
➤
in models with lever
engagement) which can result in malfunctioning,
i.e.:
– belt slipping = belt or cable stretched
– difficulty in disengaging, with a stiff lever and the
blades continuing to run = belt shortened
In both cases the stretcher needs to be adjusted.
With the cutting deck in the lowest position, identify
the adjuster
(1)
located under the left footboard and
suitably turn the nuts until, with the blades engaged,
the length of spring
(2)
equals «
A
», which varies
depending on the different versions of the machine,
that is:
122 ÷ 124 mm
- for mod. 102 - lever operated
engagement
92,5 ÷ 93,5 mm
- for mod. 122 - lever operated
engagement
113 ÷ 115 mm
- for mod. 102 - electromagnetic
engagement
90 ÷ 91 mm
- for mod. 122 - electromagnetic
engagement
NOTE
The coupling position of spring
(2)
on the plate
(3)
is
different for model 102 (hole
3a
) and model 122 (
3b -
single hole in the plate).
3/2002
3b
3a
3
2
1
A
2
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