Operators Manual

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