Stiga TC 108 SD, Workshop Manual, Page: 22 / 79

WORKSHOP MANUAL
Map of functional units
TC 108 SD - TC 118 SD
A) Adjusting blade engagement
Lower the cutting deck completely.
Identify the fastening screws and remove the left ex-
ternal safety guard (1).
Also remove the left internal safety guard (2) to obtain
easier access.
Measure the length “A” of the spring (3) and adjust the
nuts (4) until you obtain the measurements:
A = 83-85 mm - for mod. 108
A = 82-84 mm - for mod. 118
measured on the outside of the coils.
On completing the adjustments, fully
tighten the nuts.
Always reassemble the internal (2) and
external (1) side safety guards.
B) Checking the blade brake
WARNING! Correct operation
of the brake, which must ensure
that the blades stop within 5 sec-
onds from disengagement; longer
stopping times do not comply with
the safety standards.
If the blades do not stop within 5 sec-
onds from disengagement, appropriate
checks must be made to the electrical
system and the clutch must be re plac-
ed if no result is achieved.
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
[ 6.5] Replacement of the blades control belt (
TC 108 SD)
[ 6.5a] Replacement of the blades control belt
( TC 118 SD)
[ 7.7] Electromagnetic clutch check
ADJUSTING THE ENGAGEMENT AND
CHECKING THE BLADE BRAKE
CHAPTER REVISION FROM ... PAGE
4.1 0 2018 1 of 1
TC 108 SD TC 118 SD
TC 108 SD TC 118 SD