Ariens 946150 ST622 CARB - Manual (Page 12)

GB - 14
CHECK SPARK PLUG
See Engine Manual for specific information on
checking, cleaning, and changing the spark
plug.
CHANGE ENGINE OIL
Change the engine oil after the first 2 hours of
use, then every 25 hours or every season,
whichever comes first. Oil should be changed
when engine is warm.
1. Disconnect spark plug wire.
2. Clean area around oil cap.
3. Tip the string trimmer on its right side.
4. Place a container for the oil under the oil
cap.
5. Remove oil cap and let the oil drain. Tip
the unit more to drain all the oil from the
engine if necessary.
6. Place the unit upright.
7. Refill the engine with oil recommended in
the Engine Manual.
8. Replace and tighten oil cap.
9. Clean up any spilled oil.
10.Reconnect the spark plug wire.
CLEAN ENGINE COOLING FINS
Remove grass, dirt and debris from engine
cooling fins every 25 hours to prevent damage
caused by overheating.
REPLACING TRIMMER LINE
Replace the trimmer line when it extends less
than 4 inches (10.2 cm) from cutter disk. For
best results, use only genuine Ariens
replacement trimmer line.
1. Stop the engine and wait for all moving
parts to stop. Disconnect the spark plug
wire and place it securely away from the
spark plug.
2. Remove the worn trimmer line from the
cutter disk.
3. Thread the two ends of the trimmer line
up from the bottom, through the two holes
in the cutter disk.
4. Cross the line and thread the ends of the
line through the two holes on the side of
the cutter disk.
5. Make sure the ends of the line extend
through the cutter disk at the same length.
Uneven trimmer lines cause the trimmer
head to be out of balance, which results in
excessive vibration.
6. Pull trimmer line tight.
7. If necessary, cut the ends of the trimmer
line to the same length.
HANDLEBAR HEIGHT
ADJUSTMENT
1. Loosen and remove both wing knobs from
handlebar.
2. Remove carriage bolts, taking care to
support handlebar.
3. Set handlebar to desired height.
4. Line up holes in upper handlebar with
holes in lower handlebar. Be sure to use
the same holes on each side.
5. Reinstall carriage bolts and wing knobs.
Tighten securely.
CAUTION: Before tipping unit,
remove enough fuel so no spillage
will occur. A piece of plastic bag
may be used to seal fuel tank when
tipping unit. To seal, remove fuel
tank cap, cover fuel tank opening
with plastic, replace and tighten
cap securely before attempting to
tip unit. Be sure to remove plastic
before operating unit.
SERVICE AND ADJUSTMENTS
WARNING: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
OX0063
OX0080