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Owner’s Manual for Lawn Edger 13
Maintenance and Troubleshooting
Figure 4-2. Removing Blade
4. Remove blade.
5. Reverse the above steps to install new blade.
NOTE: Tighten blade locknut to 35–45 ft-lbs (47–61
Nm).
Servicing Spark Plug
NOTE: Use only the recommended spark plug or spark
plug with the same temperature range.
Spark plug gap must be correct for efficient operation.
Proceed as follows to service the spark plug:
1. Shut off engine and allow unit to cool.
2. Disconnect spark plug wire from spark plug and
place it where it will not contact spark plug.
3. Clean area around spark plug.
4. Remove spark plug using spark plug wrench and
rod.
5. Inspect spark plug for cracks or damage. Replace
spark plug if necessary.
6. Clean the electrodes with a metal brush and
remove any build up.
7. See
Figure 4-3. Measure spark plug clearance
with a feeler gauge. The clearance should be
0.028–0.031 in (0.7–0.8 mm).
Figure 4-3. Spark Plug
8. Replace spark plug if electrodes are pitted, burned,
or porcelain is cracked. Use only a TORCH F7RTC
or equivalent.
9. Install spark plug and tighten to 18–22 ft-lbs (25–
30 Nm) using spark plug wrench.
Cleaning the Air Filter
Proceed as follows to clean or replace air filter:
1. Remove outer wing nut, washer, and air filter cover.
2. Remove inner wing nut and air filter.
IMPORTANT NOTE: Do not allow dirt or debris to
enter the carburetor.
3. Separate outer foam element from inner paper ele-
ment.
4. Inspect inside of paper element for dirt or debris.
5. Inspect both elements for tears or damage.
NOTE: If inner paper element is dirty, or if either element
is torn, replace air filter.
6. Wash outer foam element in household detergent
and water, or in a nonflammable or high flash-point
solvent. Soak foam element in clean engine oil,
and squeeze out excess oil.
7. Lightly tap inner paper element against hard sur-
face to remove excess dirt, or blow compressed air
through the air filter from the inside out.
NOTE: Do not brush dirt off paper element, this will
embed dirt into the fibers.
8. Install cleaned foam element onto inner paper ele-
ment.
9. Reverse steps 1 and 2 to install clean air filter and
air filter cover onto the unit.
011384
A
000211
(000580)
WARNING
Explosion and fire. Never clean air filter element
with gasoline or low flash-point detergents. Doing
so could result in death, serious injury, or
equipment damage.
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