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15WWW.SENIXTOOLS.COM
The cutting attachment should never turn at idle. Turn
the idle speed screw counterclockwise to reduce the
idle RPM and stop the cutting attachment, or contact
customer support for adjustment and discontinue use
until the repair is made. Serious personal injury could
result from the cutting attachment turning at idle.
To avoid serious personal injury, always stop the engine
and allow it to cool before cleaning or maintaining the
unit. Never perform cleaning or maintenance while
the unit is running. Disconnect the spark plug wire to
prevent the unit from starting accidentally.
Replace chain when cutters are too worn to sharpen
or when chain breaks. Refer to INSTALL THE CHAIN
BAR AND CHAIN. Only use replacement chain noted
in this manual. Always include new drive sprocket when
replacing chain. This will maintain proper driving of
chain.
Wear protective clothing and observe all safety
instructions to prevent serious personal injury.
The cutting head will move when adjusting the idle
speed. Wear all protective clothing and keep all
bystanders, children, and pets at least 50 ft. away. Make
adjustments with the unit supported by hand so that the
cutting head does not contact the ground or any object.
Keep all parts of your body away from the cutting head
and mufer. Failure to follow these instructions could
result in serious personal injury.
Do not remove the spark plug when the engine is hot.
Do not sand blast, scrape or clean spark plug
electrodes. Grit in the engine could damage the
cylinder.
WARNING:
WARNING:
WARNING:
WARNING:
CAUTION:
CAUTION:
MAINTAINING THE SPARK PLUG
REPLACING THE SAW CHAIN AND CHAIN
BAR
STORAGE
If the engine will not idle properly:
1. Start the engine.
2. Release the throttle control and let the engine idle.
• If the engine stops, increase the idle speed. Use a
small Phillips screwdriver to turn the idle speed screw
clockwise, 1/8 of a turn at a time, until the engine
idles smoothly.
• If the cutting head spins when the engine idles,
reduce the idle speed. Turn the idle speed screw
counterclockwise, 1/8 of a turn at a time, until the
cutting head stops moving
1. Stop the engine and allow it to cool. Grasp the spark
plug boot rmly and pull it from the spark plug.
2. Clean around the spark plug. Remove the spark plug
from the cylinder head with a 5/8-inch socket, turning
counterclockwise.
NOTE: A 5/8-inch spark plug wrench is supplied with
this unit.
3. Inspect the spark plug. If the spark plug is cracked,
fouled or dirty, replace it with replacement part
#AM5RC or an equivalent spark plug.
4. Use a feeler gauge to set the air gap at
• Never store a fueled unit where fumes may reach an
open ame or spark.
• Allow the engine to cool before storing.
• Lock up the unit to prevent unauthorized use or
damage.
• Store the unit in a dry, well-ventilated area.
• Store the unit out of the reach of children.
Short-term Storage (1-2 weeks)
Store the unit in a horizontal position. If not possible,
store the unit vertically with the engine at the top.
Long-term Storage
1. Remove the fuel cap, tip the unit and drain the fuel
into an approved container. Reinstall the fuel cap.
2. Start the engine and allow it to run until it stalls.
This ensures that all fuel has been drained from the
carburetor.
3. Allow the engine to cool. Remove the spark plug
and put 5 drops of any high quality motor oil into the
cylinder. Pull the starter rope slowly to distribute the
oil. Reinstall the spark plug.
4. Thoroughly clean the unit and inspect it for any loose
or damaged parts. Repair or replace damaged parts
and tighten loose screws, nuts or bolts.
5. Store the unit in a horizontal position. If horizontal
storage is not possible, store unit vertically with
engine at top.
Preparing the Unit for Use after Long-term Storage
1. Remove the spark plug. Tip the unit and drain all of
the oil from the cylinder into an approved container.
Reinstall the spark plug.
2. Change the oil. Refer to Changing the Oil.
(0.025 in. - 0.31 in.)
0.60 mm - 0.80 mm
0.6 mm - 0.8 mm (0.025 in. - 0.31 in.)
5. Install the spark plug in the cylinder head. Tighten the
spark plug with a 5/8-inch socket, turning it clockwise
until snug.
NOTE: If using a torque wrench, torque to 18 N•m (159
in.•lb.). Do not over tighten.
6. Reattach the spark plug boot.
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