Stiga 2021 Edition PARK 320 P, Руководство по ремонту

Страница: 118 / 124

WORKSHOP MANUAL
PARK
Chapter
9 - ELECTRICAL SYSTEM
EDITION
2020
PAGE
118 /
124
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
Problem Probable cause Solution
1) Symptom: The clutch does not engage.
10 A fuse blown
• Low coil resistance • Replace the clutch
• Faulty battery • Replace the battery
• Faulty charging system • Repair or replace.
• Faulty wiring or connections of the
PTO switch
• Check, repair or replace
Low supply voltage (less than 12 VDC
to the clutch)
• Faulty battery • Replace the battery
• Faulty charging system • Repair or replace.
• Faulty wiring or connections of the
PTO switch
• Check, repair or replace
Incorrect resistance values • Damaged winding • Replace the clutch
Inadequate power supply
• Clutch cables broken • Repair or replace.
• Faulty electrical system
• Measure the clutch coil resist-
ance and the voltage supply. If
both are correct, the electrical
system is defective. Repair or
replace.
Excessive backlash between rotor and
armature
• End of the clutch life • Replace the clutch
6 5
3 3
4