Series 4180 Powerhead4
3.1 Clutch
3.2 Rewind Starter
3 Troubleshooting
Condition Cause Remedy
Tool stops at full throttle under load Clutch shoes worn Fit new clutch shoes or clutch
Clutch drum worn Install new clutch drum
Blade warped Replace blade
Tool runs while engine is idling Engine idle speed too high Readjust with idle speed screw
(LA) (counterclockwise)
Clutch spring stretched / fatigued or
broken
Replace the clutch spring
Condition Cause Remedy
Starter rope broken Rope pulled out too vigorously as far as
stop or over edge
Fit new starter rope
Normal wear Replace starter rope and, if necessary,
rope guide bushing
Starter rope does not rewind Rewind spring broken Install new rewind spring
Insufficient spring tension Check rewind spring and increase tension
Rewind spring dirty/corroded Spray rewind spring with Multispray or fit
new spring
Starter rope cannot be pulled out
far enough
Rewind spring overtensioned Check rewind spring and reduce tension
Starter rope can be pulled out
almost without
resistance (crankshaft does not
turn)
Guide peg on pawl or pawl itself worn Fit new pawl
Spring on starter post fatigued or broken Fit new spring
Starter cup broken / worn Fit new starter cup
Starter rope is difficult to pull or
rewinds very slowly
Starter mechanism is dirty Clean starter mechanism