Other Engine Problems - Husqvarna 525L Workshop Manual

8.5 Other Engine problems

Symptom/Category
Even if the engine
revolution is de-
creased, the blade
does not stop
Even if the engine
revolution is
increased, the blade
does not rotate
Abnormal vibration
68
- English
Cause
1. The clutch spring is broken
2. The clutch is open due to rusting of the
clutch bolts
3. The shoe lining has peeled off
1. The shaft is broken
2. The flexible shaft is broken (back-
supported type)
3. Drum bearing is stuck
4. Gear damage inside the gear case
5. Gear damage inside the swivel gear case
6. Damage to the joint-C spring
7. Abnormal wear to the drum and shaft's
spline
1. Blade eccentricity
2. The chip saw's tip has worn down by a
third or more
3. Pipe is bent
4. The blade has a high peripheral balance
5. The shaft is bent
6. The shaft damper is damaged or broken
7. The outer pipe is bent
8. Wear or movement of the bushing
9. Eccentricity of the drum
10. Significant weight difference on the
clutch shoe
Troubleshooting
Action
Replace the engine's clutch
spring
De-rust the clutch bolts, apply
grease and re-assemble
Replace the shoe
Replace
Replace
Replace
Repair or replace
Repair or replace
Replace
Replace
Fit the cutter holder (holder A)
firmly and re-assemble
Replace the chip saw
Set the blade's teeth or replace
Replace
Replace
Replace
Replace the pipe
Replace the drum
Replace the clutch shoe