N...92
WORKSHOP MANUAL
ADJUSTING THE ENGAGEMENT
AND CHECKING THE BLADE BRAKE
4.1
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© by GLOBAL GARDEN PRODUCTS
4.1 ADJUSTING THE ENGAGEMENT AND
CHECKING THE BLADE BRAKE
The blades are driven by the engine by means of a
“V” belt and are engaged by an electromagnetic
clutch.
After a certain period of use possible dimensional
changes in the length of the belt could lead to
operating irregularities, namely:
– belt slipping = belt elongated
– disengagement difficulties with the blades that
will not stop = belt shortened.
The tension regulator must be adjusted in both
cases.
Disengaging the blades causes the cutting in of a
brake, incorporated in the electromagnetic clutch,
whose task is to stop the blades from rotating
within five seconds.
A) Adjusting blade engagement
N.B. –
When adjusting the engagement it could be
necessary to remove the belt guards; in this case
the guards must always be replaced after
adjustment.
With the cutting deck in its lowest position, look for
the adjuster
(1)
which can be reached from the
wheel arch of the right-hand rear wheel. Turn the
nuts until the spring
(2)
reaches the length 97 ÷ 99
mm, measured from the outer edge of the eyelet
with the blades engaged.
B) Checking the blade brake
Correct operation of the brake, which must ensure
that the blades stop within 5 seconds of disengage-
ment;
longer stopping times do not comply with
the safety standards.
If the blades do not stop within 5 seconds from dis-
engagement, appropriate checks must be made to
the electrical system [see 7.3 and 7.5] and the
clutch must be replaced if no result is achieved.
4/2007
1
97-99 mm
2
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