Diagnostics Of Electromagnetic Clutch Problems - Stiga 2021 Edition PARK 320 P Workshop Manual

WORKSHOP MANUAL
3. Disconnect the connector (2).
4. Undo the two screws (3) and remove the entire
light (4).
NOTE The light is available as a spare part
and as an assembled element, therefore it's
not possible to disassemble it and replace in-
dividual components.
When assembling, perform the steps described
above in reverse order, taking care to correctly
insert all the tabs (5) in their respective seats (6).

9.3.12 Diagnostics of electromagnetic clutch problems

10 A fuse blown
Low supply voltage (less than 12 VDC
to the clutch)
Incorrect resistance values
Inadequate power supply
Excessive backlash between rotor and
armature
PARK
Problem
1) Symptom: The clutch does not engage.
Chapter
9 - ELECTRICAL SYSTEM
Probable cause
• Low coil resistance
• Faulty battery
• Faulty charging system
• Faulty wiring or connections of the
PTO switch
• Faulty battery
• Faulty charging system
• Faulty wiring or connections of the
PTO switch
• Damaged winding
• Clutch cables broken
• Faulty electrical system
• End of the clutch life
3
5
Solution
• Replace the clutch
• Replace the battery
• Repair or replace.
• Check, repair or replace
• Replace the battery
• Repair or replace.
• Check, repair or replace
• Replace the clutch
• Repair or replace.
• Measure the clutch coil resist-
ance and the voltage supply. If
both are correct, the electrical
system is defective. Repair or
replace.
• Replace the clutch
EDITION PAGE
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