Setting The Electromagnetic Clutch Air Gap - Stiga MPV 320W Workshop Manual

WORKSHOP MANUAL
MPV 320W / 520W

6.2.9 Setting the electromagnetic clutch air gap

WARNING!
seconds of disengagement.
IMPORTANT The correct adjustment foresees an air gap of from 0.38 to 0.6 mm between the
rotor and the armature.
NOTE - This setting can be executed without removing the clutch from the machine. The figure
shows the disassembled clutch only to make the procedure clearer.
1. Insert a thickness gauge between the armature and the rotor, through the designated slit.
2. Slowly tighten the brake adjuster nut (10) until
the thickness gauge comes into contact with
the armature and the rotor.
NOTE This clutch uses 24UNF adjustment
nuts, therefore one turn of the nut is equivalent
to about 1 mm of axial movement.
IMPORTANT During the adjustment, bear in
mind that:
• the air gap with lower set values increases
the period that elapses between one regula-
tion and another.
• the gap set to a lower value reduces to a min-
imum the duration of the clutch.
3. Transfer the same adjustment settings to all
the nuts.
On completing the setting process:
4. Engage the clutch.
5. Rotate the armature and the rotor to ensure
that there is no contact between the armature
and brake. In case of contact, loosen the brake
nuts and try again until the contact has been
eliminated.
6 - CUTTING DECK AND COLLECTION
- This adjustment must be carried out if the blades do not stop within 5
Chapter
[
10
2 3 4 5 6 7
8
9
1. Armature / pulley unit 2. Brake cover
3. Armature 4. Pulley 5. Armature spring
6. Bearing 7. Bearing hub 8. Rotor
9. Winding 10. Adjuster nut 11. Spring
EDITION PAGE
2017 45 /
64
5.1.2].
1
10 11