Adjusting Blade Engagement; Checking The Blade Brake - Stiga T 102 Series Workshop Manual

WORKSHOP MANUAL
T...102/122 - TC...102/122
Validity
General informations
The blades are driven by the engine by means of
a "V" belt and are engaged by an electromagnetic
clutch.
After a certain amount of use the belt can become
longer which can result in malfunctioning, i.e.:
– belt slipping = belt stretched
– difficulty in disengaging, with the blades con­
tinuing to run = belt shortened
In both cases the stretcher needs to be adjusted.
Disengaging the blades causes the cutting in
of a brake, incorporated in the electromagnetic
clutch, whose task is to stop the blades from ro­
tating within five seconds.
Related topics
[ 6.6] Replacement of the blades control belt
[ 7.7] Electromagnetic clutch check
[ 7.17] Electromagnetic clutch
check
Map of functional units
ADJUSTING THE ENGAGEMENT AND

CHECKING THE BLADE BRAKE

A) Adjusting blade engagement
Con il piatto di taglio nella posizione più bassa, indi-
With the cutting deck in its lowest position, look for
the adjuster (1) which is placed under the footboard
on the left side and turn the nuts, with the blades en-
gaged, until the spring (2) reaches a variable length
«A» according to the different versions of the ma-
chine, as follows
A = 113 ÷ 115 mm - for mod. 102
A = 90 ÷ 91 mm - for mod. 122
2
A
NOTE The hook position of the spring (2) on the
plate (3) is different for the model 102 (hole 3a) and
the model 122 (3b – the only hole on the plate).
3
3b
3a
CHAPTER REVISION
4.1
B) Checking the blade brake
WARNING!
which must ensure that the blades stop within 5
seconds from disengagement; longer stopping
times do not comply with the safety standards.
If the blades do not stop within 5 seconds from disen-
gagement, appropriate checks must be made to the
electrical system and the clutch must be re plac ed if
no result is achieved.
1
2
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Correct operation of the brake,