Stiga MP 84/98 Workshop Manual page 23

WORKSHOP MANUAL
MP 84/98 - MP 84/98 Hy
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
[ 5.2] Removal of the side guards (if provided)
[ 6.6] Replacement of the blades control belt
[ 7.5] Electromagnetic clutch check
Map of functional units
ADJUSTING THE ENGAGEMENT AND
CHECKING THE BLADE BRAKE
A) Adjusting blade engagement
Remove right side guard (if provided)
With the cutting deck in its lowest position, suitably
turn the adjuster nuts (1) until the spring (2) reaches
the length "A" 82 - 85 mm, measured from the outer
edge of the eyelet with the blades engaged.
2
A
1
WARNING! Reassemble right side guard (if
provided)
CHAPTER REVISION FROM ...
4.1 0 2018
B) Checking the blade brake
WARNING! Correct operation of the brake,
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.
PAGE
1 of 1