Operator's Manual
Rolling High-Wheel String Trimmer 600050 Series
Get parts online at
www.getearthquake.com
or call 800-345-6007 M-F 8-5
17
TRouBlesHooTInG GuIde
noTe: Please see the engine manual for a full troubleshooting guide for any engine issues.
Trouble
cause
correction
Engine does not start
Spark plug wire disconnected
Connect spark plug wire
Engine not primed
Prime engine
Defective or incorrectly gapped spark plug
Inspect or replace spark plug
Fuel tank empty
Add fuel
Dirty carburetor or fuel line
Clean carburetor or fuel line
Dirty air filter
Replace air filter
Carburetor out of adjustment
For carburetor adjustment, take the unit to an autho-
rized service center
Engine flooded
Wait several minutes before starting
Throttle control lever in incorrect position
Move throttle lever to FAST or START position
Stale gasoline
Drain old gasoline and add fresh gas
Defective throttle control lever or wire
Inspect lever and wire. Replace if damaged or defective.
Engine runs poorly
Bad spark plug
Replace spark plug
Dirty air filter
Replace air filter
Carburetor out of adjustment
For carburetor adjustment, take the unit to an autho-
rized service center
Stale gasoline
Drain old gasoline and add fresh gas
Engine cooling system clogged
Clean debris screen and engine cooling fins
Engine overheats
Engine cooling system clogged
Clean debris screen and engine cooling fins
Carburetor out of adjustment
For carburetor adjustment, take the unit to an autho-
rized service center
Oil level is low
Add oil
Engine will not stop
running
Defective throttle control lever or wire
Inspect and replace damaged parts
Throttle not adjusted properly
Move throttle to the full OFF position
Poor trimming perfor-
mance
Trimmer line length is too short
Correct line length is 21.5 inches. When the line is less
than 1/2 of this length, replace the line.
Engine not set at FAST speed
Move engine throttle lever to FAST position
Trimmer vibrates
Socket head cap screws for the trimmer
head are loose
Tighten socket head cap screws with L-handle wrench
Trimmer line lengths are substantially
different
Adjust trimmer line to approximately equal lengths
Loose nuts or bolts
Check all bolts and nuts, including engine bolts
Broken trimmer head
Replace broken part
Trimmer head does not
retain line
Trimmer line not properly attached
Follow instructions on decal or in the "Maintenance,
Service and Storage" section of the owner's manual
Broken line retainer
Replace trimmer head assembly
Trimmer line not correct size
Use a 0.155" diameter trimmer line
